Home

Optica Operator`s Manual - GE Measurement & Control

1. gt Figure 36 Configuration Screen Optica Operator s Manual Chapter 5 Programming the 4x40 Optica Chapter 5 5 0 1 Introduction Programming the 4x40 Optica The 4x40 Optica can be easily programmed to choose the data to be displayed the data to be output on the analog or serial outputs and the alarm settings A typical data display is shown in Figure 37 below Tdew C 8 47996 RH 10 3 Tmp C 25 355 Control Figure 37 4x40 Optica Typical Data Display Table 19 below lists the 4x40 Optica s programmable functions Each function has a number of settings listed on the following pages Values for some settings are selected from a list of choices others are entered as numeric or alphanumeric data using the keypad Table 19 Programming Functions Function Settings About Analog Outputs Communication Parameters Serial Output Units Serial Output Setup Alarms Data Fields Pressure Input Automatic Balance Buzzer and Sounds General Settings User Equations Set Time and Date Special User Default Settings Factory Calibration Optica Operator s Manual Displays software version Parameter choice units and scaling Baud rate parity data bits etc Parameter choice units data format Serial data string format Parameter choice and alarm limits Parameters amp units for displayed data Units scaling and default values Frequency and type of balance Keyclick loudness
2. 50 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 5 5 Data Fields Field Parameter Units GrphMax GrphMin GrphColor Decimals 4 5 6 Buzzer Sound Item Table 10 Data Field Options Function Graph line number and numeric display number to be programmed For the field selected above choose which parameter will be output Choose the units for this parameter Set the parameter value that will produce full scale on the graph Set the parameter value that will produce zero on the graph Set the color for the selected graph line The number of decimal places for the numeric display Table 11 Buzzer Sound Option Function Available Options 1 2 3 4 50r6 Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen enter a number Enter a number Black Red Green Orange Blue Violet Yellow or Brown Enter a number 6 maximum Available Options Buzzer Sound Sets the length apparent loudness of keyclick sounds Enter length of keyclick sound in Optica Operator s Manual msec 150 msec maximum 51 Chapter 4 Programming the VGA Optica 4 5 7 Network Menu Networking settings including IP Address Subnet Mask and Default Gateway Generally you will obtain these settings from your network administrator This menu is accessed by selecting the Network control button on Menu 1 and pressing ENTER Host Name
3. 99 Appendix D Chilled Mirror Sensors no content intended for this page 100 Optica Operator s Manual Appendix E Glossary Appendix E Glossary Depression Capability The temperature difference by which the chilled mirror can be lowered from the ambient temperature Network A Local Area computer Network LAN or Wide Area Network WAN such as the Internet The Optica can be operated or programmed remotely over a network PACER GE Sensing patented Programmable Automatic Contaminant Error Reduction system which consolidates soluble contaminants to reduce their effect on system accuracy see The PACER Cycle on page 7 Parameter A measured quantity available for display by the unit such as Dew Point in C Humidity in Grams Kilograms or Pressure in Bar Process Pressure The gas pressure of the system under test In some applications humidity of this gas may be measured at a lower pressure Scaling The process of selecting the maximum and minimum output values of a chosen parameter SHIFT Pressing the SHIFT key enters Shift Key mode reversing the direction of the cursor motion when pressing TAB and accessing the non numeric characters on the keypad Softkeys The four keys to the right of the display The functions of these keys change depending on the context and the current function is displayed to the left of each key VGA Video Graphics Array Generic description of a 640 by 480 pixel
4. Operator s Manual Appendix D Chilled Mirror Sensors Appendix D Chilled Mirror Sensors D 1 Introduction GE offers a choice of six fully interchangeable chilled mirror sensors which differ primarily in their depression cooling capability Depression capacity determines the minimum dew point that can be measured All of the sensors feature low noise infrared optics a field replaceable mirror and can be located up to 300 ft 91 m from the electronics Other advanced features depending on the sensor selected include heating capability four or five stage thermoelectric cooling air and water cooling for additional depression and modular field replaceable optics and cooling assemblies Many of these features were pioneered by GE Measurement amp Control and are available only on GE products A chilled mirror sensor is generally selected so that its depression capability will allow 1t to measure the lowest dew frost point anticipated for the application D 2 Depression A Peltier device is a solid state heat pump It has one surface thermally bonded to the body base of a dew point sensor and the other surface bonded to the mirror block When current is supplied to the Peltier device heat is pumped from the mirror block to the sensor body where it is dissipated With full cooling current the mirror block will eventually cool to its minimum temperature The difference between the temperatures of the mirror block and
5. b Highlight the Date and Time fields and use the Keypad and Softkeys to set the correct time 2 Set the Time Programmed Balance Cycle a Enter Menu and go to the Automatic Balance Section b Open the Type pull down menu and choose one of the four selections see Table 9 below Note Optica Operator s Manual Table 9 Automatic Cleaning and Balance Functions Function Heats the mirror and balances the optics Elapsed Time Interval First cools the mirror to develop a thick dew frost layer then heats and balances the optics EIOrS ER Time Its al Heats the mirror and balances the optics Clock Time Interval First cools the mirror to develop a thick dew frost layer then heats and balances the optics Clock Time Interval The PACER function will provide more thorough cleaning than the AUTO function because it first develops a thick dew frost layer into which soluble contaminants dissolve When heated some of the contaminants are flash evaporated and the remaining residue accumulates in clusters resulting in an approximately 85 cleaner surface The PACER cycle generally takes longer to complete 49 Chapter 4 Programming the VGA Optica 4 5 4 Automatic Cleaning and Balance Function cont 3 Manually clean the mirror as required Note Manual cleaning provides the most thorough cleaning 4 After manual cleaning initiate the Automatic Cleaning amp Balancing 5 To program a specific time of day
6. lt fAllData gt 23 193436 lt fAllData gt lt fAllData gt 16 158667 lt fAllData gt lt fAllData gt 9 333572 lt fAllData gt 112 Optica Operator s Manual Appendix G Communicating with the OPTICA Using Ethernet G 2 7 Retrieving the Measured and Calculated Values cont lt fAllData gt 48 800430 lt fAllData gt lt fAllData gt 4014 087158 lt fAllData gt lt fAllData gt 2496 681885 lt fAllData gt lt fAllData gt 17 476774 lt fAllData gt lt fAllData gt 6 832514 lt fAllData gt lt fAllData gt 2 496682 lt fAllData gt lt fAllData gt 2 985780 lt fAllData gt lt fAllData gt 186 449982 lt fAllData gt lt fAllData gt 43 695812 lt fAllData gt lt fAllData gt 26 523333 lt fAllData gt lt fAllData gt 19 541956 lt fAllData gt lt fAllData gt 11 861956 lt fAllData gt lt fAllData gt 4 055074 lt fAllData gt lt fAllData gt 21 146547 lt fAllData gt lt fAllData gt 70 100189 lt fAllData gt lt fAllData gt 294 306549 lt fAllData gt lt fAllData gt 529 753784 lt fAllData gt lt fAllData gt 14 710732 lt fAllData gt lt fAllData gt 1014 265686 lt fAllData gt lt fAllData gt 1 014266 lt fAllData gt lt fAllData gt 101426 570313 lt fAllData gt lt fAllData gt 101 426567 lt fAllData gt lt fAllData gt 760 761841 lt fAllData gt lt fAllData gt 29 239281 lt fAllData gt lt fAllData gt 1 034267 lt fAllData gt lt fAllData gt 1014265 687500 lt fAllData gt lt fAllData gt 0 401409 lt fAllData gt
7. 0 0 0 ett ene nen 84 7 4 3 Incorrect Dew Point Displays roerne eee a 85 7 4 4 Balance Remains on the Status Line 0 cece a 86 TAS No Analog DU chases eer Recte eee deer dee Sea uct rt e eee d 86 7 4 6 No Serial Output irr peed oak coe er os stesse nets ead eu pL att ps 86 Performance ti HS dw Gee a a Ru eAMN Lepide M EVER 87 A 1 1 Accuracy complete system at 25 C 77 F 0 I a 87 A T 2 Measurement Ranges oe a case s lobe p ewe uei A E UR ue Lore id 87 AT Response Time i A ev ev beu Vll CARI TER IESU 88 Eunctionality sssi xen tissu UR AGER DANG OU e old au ed E SEN 88 AD LA arms ever eRIEUDUEPIP SURVIE ba 88 A2 2 0perating Ranges ia A ee Seed HE ee Wed oe eee dme eerie 88 Physical bench mount o 89 A Dimensions oco ut eR caste ela A OU m Ce E RV PEE epes 89 AS 2 Weight 4 os sr eee npe pute epu e p Db ue RATS Guta EAD RU OC Ro pee 89 A 3 3 Shipping Weights elm a d Qd Eee e d E cede ded 89 A3 4 Environmental Aey A x EDU XM EC URN EE UM IR NEA RN NE 89 Physical wall mount uni A a E EE eh OR ERROR EO n REN Masa Re oM erra 89 A41 Dimensions 45 C Cos MONE e Rh Foe WES Cr A e Oe Fe et Ld 89 LOMA In P 89 AA 3 Shipping Weight oir ida er ee o E e A e IR REO ace DUET AREE dee Bmw tend 89 A44 Environmental v2 10 uod dee soot ta CR eua cR wy amas Pl do Aaa 89 Optional Accessories aii a Fo a pee EU ITE NELEN 90 RE SOC NOE a be het A Bs in Isaac ir date Lee hac Sie a cet b
8. A typical main data screen is shown below Tdew C Twet F d a n Seconds gt Acquiring Balance Display Figure 40 Typical Main Data Screen Optica Operator s Manual 73 74 Chapter 6 Network Based Programming 6 2 Programming Screens cont Click on Menu to display the Data programming screen Figure 41 Data Programming Screen Press More to display the Other Options screen Other Option User Equations Equation 4 User Prompt Equation Equation AIM 10 Tdew C A0 Tdew F A1 RH A2 Tevet C AT Communications Parameter Baud rate Figure 42 Typical Main Data Screen Optica Operator s Manual Chapter 6 Network Based Programming 6 2 Programming Screens cont Press Display from the main data screen to configure the Main Display screen IE Main Display Setup Data Fields Data Field a y Parameter Humidity Units Tdew C vj Graph Max hooo Graph Min 1 0 Graph Color Black Decimals 1 v Cancel Figure 43 Main Display Screen Optica Operator s Manual 75 Chapter 6 Network Based Programming A e _ e o aaa no content intended for this page 76 Optica Operator s Manual Chapter 7 Maintenance Chapter 7 Maintenance 7 1 Minor Maintenance of Sensor Optics Periodically inspect and maintain the sensor optics as described in the following chapter These procedures c
9. All parts in contact with the sample gas are heated to a constant 105 C so that no condensation occurs The flow meter is normally mounted downstream from the heated sensor 2 6 6c Type SIM HSL Heated Sampling Line The SIM HSL heated sampling line is self regulated at a temperature high enough to ensure that no condensation occurs The line is made of 4 inch outside diameter PTFE with stainless steel fittings 2 66d Type SIM MPL Mounting Plate The SIM MPL mounting plate is designed to accept one two or three heated modules the heated sensor the heated filter and the heated flow meter The mounting plate provides a convenient method of wall mounting the entire heated sampling system When ordered with one or more modules the factory performs all mounting plumbing and wiring work thus providing a complete system ready for installation 2 6 7 Connecting the Sensors Dew point temperature and pressure sensors provided by GE for the Optica monitor are pre wired with connectors installed Plug these connectors into their corresponding sockets as shown in Figure 9 on page 13 for the benchtop unit or Figure 12 on page 15 for the wall mount unit 28 Optica Operator s Manual Chapter 3 Operation Chapter 3 Operation 3 1 Introduction Operating instructions fall into three categories e Normal Operation Using the unit s controls Setup and Programming Customizing the unit for specialized applications not required f
10. Record Terminator of data Comma CR CR LF Enter the output interval in seconds for Serial Mode All Interval in seconds Enter a number Output dew point sensor status with Show Status each data string Heat Cool Balance Enabled Disabled PACER Service Alarm 1 Alarm2 Output date and time with each data Enabled Disabled string Time Stamp Optica Operator s Manual 65 Chapter 5 Programming the 4x40 Optica 5 2 5 Alarms For more information on using the alarms see Alarm Outputs on page 18 Setting Alarm 1 Alarm 41 Parameter Alarm 1 Units Alarm 41 Type Alarm 1 Upper Alarm 1 Lower Alarm 2 Alarm 2 Parameter Alarm 2 Units Alarm 2 Type Alarm 2 Upper Alarm 2 Lower Table 24 Alarm Options Description Enable or disable Alarm 1 Choose the parameter to control Alarm 1 Set the units for this parameter Set the type of condition that will activate Alarm 1 The upper side of the alarm band The lower side of the alarm band Enable or disable Alarm 2 Choose the parameter to control Alarm 2 Set the units for this parameter Set the type of condition that will activate Alarm 2 The upper side of the alarm band The lower side of the alarm band Available Options Enabled Disabled Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen Set Point Inner Band Outer Band Control Service PACER Enter a
11. delete it using REMOVE Time Stamp Output date and time with each data string Enabled Disabled The units of currently selected parameters are shown Selected along with the number of decimals for each unit Outputs Output dew point sensor status with each data string Show Status Heat Cool Balance PACER Service Alarm 1 Enabled Disabled Alarm 2 Humidity Temperature Pressure Parameter Select a parameter to configure or User Equation See Table 4 on page 44 for Units Set the units for the selected parameter available units Format Choose output format for the selected parameter Dp Dp No Label Separator Choose separator to be used between parameters Space Comma TAB CR CR LF Terminator Choose the terminator s for each group of data Comma CR CR LF Interval sec Enter the output interval in seconds Enter a number Enter the number of decimal places for the selected parameter Enter a number 6 maximum Decimals Control button to add the configured parameter to the ADD button output list using the units and number of Select button and press ENTER decimals designated Control button to remove from the output list the parameter selected at the top of the serial output Select button and press ENTER menu REMOVE button 58 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 6 6 Set Time Date The Time and Date menu is accessed by selecting Set
12. ore vinnie AA oe Ee Seat ect ye E ENS erat 39 3 9 25C ONtAMINALON di da etait eal CERRO B ede tanec age tes aud td uth 39 3 9 3 Mirror Plooding ii A Peeps paseo Ye RERO A 40 3 9 4 Sample Eine Maintenance 6255 a5 na a aT ae a fate A ade yer 40 3 0 5 Pressure Effectsz 24 5 Aa Ba ona nas 40 iv Optica Operator s Manual Contents Chapter 4 Programming the VGA Optica 4 1 4 2 43 4 4 4 5 4 6 4 7 Introduction c5 su Lexus nbus t ERES m peek BY a EL E 41 Programming Fundamentals o o ooooooooorrrr eee 41 ADA Ihe Keyser uu boot tase Sood a n eoe echte eaten Pad Baroda EAT orca delayed dod dt 42 42 2 Data Entry Fields i sd eei erede verto eh e id 42 Units of Measure uos ter eed A E REOR ay wh ARMA Ros EN A E EAT MAS Ro DR Ig ate 44 User Equations 25s Ave at ed M e Pac s 44 Menu Iu sescenti eth do ata ves S oet nor a arto sodas caa eg aat edat ebur b ecu E Aca I ad 46 4 5 1 Analog Outputs 3i seis but RS RLeueoc e ia REREGAES 46 4 5 2 Pressure Input cos a pte detis e Ace aah ate CR ath Mowe e pete cede 47 ASI Ad osea en Ce Ce Pap ee pe dee Das shat Gases eie Daten ed Day tex be Day ex boe le 48 4 5 4 Automatic Cleaning and Balance Function ooooooocooooroororr een 49 4 5 5 Data Fields 5 uer ia lets eins GR ead seo Sha a ee vae esce vae S deer DR rM D ees 51 4 5 6 Buzzer Sound cu o voted ws estu gal te p eee esu La UNO A es NR totas 51 4 5 Network Menus cocer ied bd a EM DECEDERE NM eda 52 45 8 Datalogic
13. s chew eaten a e pet id a 77 OSU cs dada in e Sra 84 Troubleshooting ui alli 84 Measurement Ata Different Pressure o o oooooooo 32 Dew Point oi I Aene 34 35 High Dew POM ty cu utt IE 22 Process Pressure 32 33 34 RANGE c CCP 98 PRA CS EU TIEREN a e le 1 Retrieving Values with Ethernet 112 Units of Mesta cad ara 44 Vapor Pressure with a Sensor 33 35 Vapor Pressure without a Sensor 33 34 Mirror Cleaning 4 8 hb Mikko oA AS Pe IA 77 PIGOdING ss a suse dont bien ata eco SO Rb e gue 40 Mirror Cleaning and Balancing 77 Model 1311XR Sensor 5 35 2 sate ccc ea 26 Control Knob oer ra dS dh oe sa 27 Coola t daua ceteras E wie ee ER e ok 26 Electrical Connections ooo oo 26 Error Indica E edo ae Vax 27 Heat Pump Controller Settings 27 Purging the Sora o ad 27 Sample Gas FittidgS o 26 Optica Operator s Manual Model SIM 12H Sensor sess 28 N Network PENMON 292 aia dadas 101 Mena e QN RAN I ce UN eR Bae ie 32 Operation 443 3 qu bah E e AERE 31 SGlcell ccc sd D Date OE EMI de 3l Network Based Programming 73 O Operation ARAQ Optica o2 uo ia do oa 30 Help ADA AS AR 38 Network eo aia 31 Normal se burst ts 29 is AA A ii e a aaia aa 4 VGA Optica Luce sewed da E ds 30 Optica 4x40 Alarms A pL 66 Analog Outputs ua 1s sre core Ba AS 64 Automatic Balance 521552
14. 15 Benchtop and Wall Mount Input Output Terminal Blocks 16 Optica Operator s Manual Chapter 2 Installation 2 4 1 Analog Outputs Note When the Optica is being programmed the analog outputs provide 4 20 mA and 0 5 VDC signals representing the designated parameters e For 4 20mA output connect to terminals labelled 4 20 and RTN Note The maximum load allowed for current output is 500 Ohms e For 0 5 VDC output connect to terminals labelled 0 5 and RTN Note The maximum load allowed for voltage output is 5 mA Example Assume a temperature output scaled to range from 0 C Tlower to 100 C Tupper with a measured actual temperature of 23 C Tactual The voltage output is calculated by Vout aes Tlower x s L Tupper Tlower yielding an output voltage of 1 15V 6550 T J 115V The current output is calculated by Tactual Tlower 7 lout mA operan x 20 4 4 yielding an output current of 7 68 mA ams 16 4 7 68mA Optica Operator s Manual 17 Chapter 2 Installation 2 4 1a Additional Voltage Outputs It is possible to use either of the analog current outputs as an additional voltage output by connecting a precision resistor from the current output to its return A voltage will be produced equal to the output current times the load resistance To produce a voltage output range of 1 to 5 volts connect a 250 ohm resistor 0 1 tolerance recommende
15. 2 Weight 10 lbs 4 5 kg A 4 3 Shipping Weight 15 lbs 7 kg A 4 4 Environmental Surface mount industrial environment NEMA 4 Optica Operator s Manual 89 Appendix A Specifications A 5 Optional Accessories 19 rack mount adapter A 5 1 T 100E Temperature sensor A 5 2 PT 30A Pressure transducer 0 30 psia A 5 3 PT 300A Pressure transducer 0 300 psia A 6 European Compliance Complies with EMC Directive 2004 108 EC and 2006 95 EC Low Voltage Directive Installation Category II Pollution Degree II Note Product has reduced limits for Radiated immunity between 88 and 108 MHz and conducted immunity between 11 and 32 MHz Specifications subject to change without notice 90 Optica Operator s Manual Appendix B Humidity Equations and Conversion Chart Appendix B Humidity Equations and Conversion Chart B 1 Introduction The following symbols appear in the equations below e Vapor Pressure millibars ej Vapor Pressure with respect to ice millibars ew Vapor Pressure with respect to water millibars eis Saturation vapor pressure ice millibars e ws Saturation vapor pressure water millibars P Total Pressure millibars T Temperature C T Ambient temperature C Ty 7 Dew point temperature C T Frost point temperature C Optica Operator s Manual 91 Appendix B Humidity Equations and Conversion Chart B 2 Vapor Pressure Sat
16. 73 MGA Optica ia duende howe tiene wee ae 41 R Return Policy lios ds ai eh es 121 S Sample Gas Fittings Model 1311XR Sensor asii aid 26 Sample Line Maintenance o oo ooooomooo 40 Sampling Lines 23 2 a AA 21 22 Scaling Definition e ze ean eU 101 Sensor Mirror Cleaning and Balancing 77 117 Index SEO a qu Ra aer le Bed BUD 3 Balanites otioso Cw dar ion ee 38 Chilled Miffo oa ot retas c Pace d 97 Cleaning the MIFIDES 9 fy A TE Comparison Chart o oooooooooo o 99 Coment e Rh 28 Dew Points duscalusstaiotals elder 3 a AAA PITE EU ese 22 Heated uoo eae ted Guts O 22 Moratoria 21 Installation o o ooooooooo o 21 24 Maintenance ooo oo 77 82 Model IIH oues a x Rs 24 Modet I2 TEL oia do deb atta ig a 2 25 Model LSTEDR rennir oe 25 Model 1311XR uer Rr eroe 26 Model Dra beet co MM eec uA 24 Model SIMA e eee aeri 28 PRESS coru doe a die ae 3 Replacing Mirrors s 1i0it ra A 82 Temperature x rt di Li a 3 Serial Outputs 4x40 Optica i oaao ea etu eda tes p d vs 65 Troubleshooting sica E tace ce Pena 86 A hao ear p sao beds ite e ro 20 Service Required sure aui PRENSA 84 Set Point Alarm Louie besser bsp rS PES Ku 18 SHIFT REY ii ose sea ia A 101 BOIS ci aue ie EAR WP i RI 101 Specifications Functional nes eds cantat cep S eei Eu e 88 Optional Accessories o o o oooooooooo o 90 Perforimnalice cursa ec dne poe pala 87 Physical Benchtop
17. Cool and PACER front panel controls are disabled Heat Sensor Heating is active Lockout Cool Sensor Cooling is active 36 Optica Operator s Manual Chapter 3 Operation 3 7 1 Factory Default Settings As shipped from the factory the Optica is normally programmed with the configuration shown in Table 3 below Table 3 Factory Default Values Setting Analog Output A Humidity Units Tdew C Range 40 C to 60 C Analog Output B Temperature Units Tmp C Range 0 to 100 C Units psia Range 0 30 Default pressure 14 70 Process pressure disabled 14 70 Alarm 1 Disabled Humidity Units Tdew C Set Point 100 00 Alarm 2 Disabled Temperature Units Tmp C Set Point 100 00 Auto Balance Interval 720 minutes Automatic Disabled Hold Data Field 1 Humidity Units Tdew C Range 40 000 to 60 000 C Color green 1 decimal Data Field 2 Humidity Units RH Range O to 100 Color blue 1 decimal Data Field 3 Temperature Units Tmp C Range 0 to 100 Color red 1 decimal Data Field 4 Pressure Units psia Range O to 100 Color yellow 1 decimal Data Field 5 Humidity Units ppmv Range 0 to 1 000 000 Color brown 1 decimal Data Field6 Humidity Units ppmw Range O to 100 Color violet 1 decimal Pressure Input 1 Buzzer 15 msec General Data Fields 3 Lockout disabled Offsets and filters O Special Molecular Weight of Gas 28 9645 User Equation None entered Commu
18. G2 8 4X40 Optica Configuration seusia eiaa ehh e 114 Optica Operator s Manual Chapter 1 Features and Capabilities Chapter 1 Features and Capabilities 1 1 Introduction The GE Measurement amp Control Optica is a multi purpose chilled mirror hygrometer suitable for use in a wide variety of applications The Optica can function with any GE Measurement amp Control chilled mirror sensor to provide the following measurement ranges depending on the sensor selected e dew frost point from 80 C to 85 C 112 F to 185 F relative humidity from 0 002 to 100 moisture content from 500 ppb to over 5 71 x 10 ppm temperature from 100 to 100 C 212 F to 212 F The Optica also measures and displays gas pressure using a GE Sensing PT 30A or PT 300A pressure sensor or a user supplied 4 20 mA or 0 5 VDC pressure sensor Note Ifthe pressure is known to be constant a fixed pressure can be programmed eliminating the need for a pressure sensor Using the Optica you can simultaneously measure and display dew point temperature and pressure with a wide variety of units of measure The Optica is Ethernet ready so you can access the unit using the Internet for remote monitoring applications You can use the data logging function to record and upload weeks of data Optica Operator s Manual 1 Chapter 1 Features and Capabilities 1 2 Electronics Enclosure The Optica is available in two configuratio
19. LAN connector 115 230 VAC 50 60 HZ 4A 2 5A Optional ra LAN L JJ oes connector Figure 9 Optica Benchtop Rear Panel Note Depending on the model revision the LAN connector is located in one of two places Optica Operator s Manual 13 Chapter 2 Installation 2 3 Wall Mount Installation The Optica Wall Mount unit is designed to mount on a flat vertical surface such as a wall or panel To mount the wall mount version see Figure 10 and Figure 11 below 2 3 1 Mounting the Wall Mount inches mm Figure 10 Optica Wall Mount Dimensions 261 6 63 mm gt 2 places 3 i 1 4 hardware is recommended O Allow adequate space below unit for cabling Figure 11 Optica Wall Mount Mounting Hole Locations 14 Optica Operator s Manual Chapter 2 Installation 2 3 2 Wiring the Wall Mount All connections to the wall mount unit are made through the panel at the bottom of the case as shown in Figure 12 below Any I O cabling is brought into the unit through a gland at the lower left of the case and connects to the terminal blocks on the left side of the case Wiring for these connections is shown in Figure 15 on page 16 The dew point sensor and temperature sensor cable connectors are located near the center of this panel 1 0 Terminal Blocks connector I O Cable Gland Serial Port Temperature Sensor Dew Point Sensor AC Wiring Terminal Bloc
20. Optica Dornain O Get IP from Server Specify an IP Address IP Address 192 168 Subnet Mask 255 255 255 Default Gateway 0 O Figure 31 Network Menu Table 12 Network Settings Options Function Available Options Host Name Enter the host name for the Optica unit of the LAN Domain Enter the Domain name for the local network IP Address Use the left and right arrow keys to select between Get the IP from the Server Type DHCP and Static IP or Specify an IP Address If you choose to specify an IP address you must enter Enter four decimal integers IP Add ix it here between 0 and 255 If you choose to specify an IP address you must enter Enter four decimal integers Subnet Mask HORSE a Subnet Mask between 0 and 255 Default If you choose to specify an IP address you must enter Enter four decimal integers Gateway a Default gateway between 0 and 255 OK button Save changes and return to the previous screen Enter a number 6 maximum Help button Display help for the network screen You may need to contact your local network administrator for this information 52 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 5 8 Datalog Enter parameters for automatically logging data within the Optica This menu is accessed by selecting the Data Log control button on Menu 1 and pressing ENTER Status Disabled Y Interval 1 Seconds Decimals _ Separator Terminator comma
21. Set the method for sending data requested by receiving device Query mode is described below 300 600 1200 2400 4800 9600 Baud Set the baud rate as required by the receiving device 19200 38400 57600 Parity Set the parity as required by the receiving device None Odd or Even Set the number of data bits as required by the Data Bits e 70r8 receiving device Stop Bits Set the number of stop bits as required by the 11502 receiving device tonta Set the Flow Control mode as required by the None X OFF RTS CTS receiving device 4 6 4a Query Mode Format Command Returns HELP lt gt Help string Note The symbol lt gt indicates a carriage return GETDATA O item item item item Requested data items GETSTATUS 0 lt gt Status string Query mode examples GETDATA 001 lt gt returns the Dew Point C Dew Point F Note The 0 and 1 above following the GETDATA 0 command reference the numeric suffix of the parameter identifier from Table 5 on page 45 For example A0 has units Tdew C so the 0 requests Tdew C GETSTATUS lt gt Returns a string of 1s and Os corresponding to PACER Service Control Heat Cool Alarm 1 Alarm 2 Optica Operator s Manual 57 Chapter 4 Programming the VGA Optica 4 6 5 Serial Output Data Table 18 Serial Output Data Options Function Available Options Units of selected output are displayed Select one with the UP DOWN keys to change it or
22. Time and Date on Menu 2 and pressing ENTER To set the Optica s internal clock press TAB to select each field of the date and time and press the up and down softkeys to set each field When the settings are correct tab to the OK button and press ENTER Date 5 11 43 Time 10 54 28 PM Cancel Figure 35 Time and Date 4 6 7 Restore Defaults To access this choice select the Restore Defaults button on Menu 2 and press ENTER This screen resets all programmable items to the factory defaults shown in Table 3 on page 37 Press TAB to select Yes and press the ENTER key Optica Operator s Manual 59 Chapter 4 Programming the VGA Optica 4 7 Saving Configuration Files This option allows the user to save a configuration file and then load it onto the system for future use Note To activate the selected configuration the system must be reset To save the current configuration file 1 2 60 Select Configuration on the Main Screen A screen similar to the one shown below in Figure 36 appears Type a file name under Save Configuration File and click SAVE The name will appear under Load Configuration File To load or delete an existing configuration file highlight the name under Load Configuration File and click LOAD or DELETE as desired To exit the Configuration screen click OK r Save Configuration File Load Configuration File Enter File Name Select File Name a 5
23. V V Noloas 26 ge 08 N rsz 00 L v sc 00 L i d y L 042 0 Z SLE vv zL m e oz 080 Losi 690 E 6 72 86 0 18z Ebb sc o0 ad m 0 1 S90 122 601 pe Li 161 9 0 v 622 0011 891 99 0 Bracket Mount Adapter Figure 8 Optica Rack Optica Operator s Manual 12 Chapter 2 Installation 2 2 3 Wiring the Benchtop 2 2 3a Input Power The Optica operates with input power from 90 to 126 VAC at 4 amps or from 208 to 252 VAC at 2 5 amps It is designed for a nominal 100 115 or 230 VAC source A switch on the rear panel selects the appropriate voltage range see Figure 9 below The 115 VAC setting operates over a range of 90 to 126 VAC The 230 VAC setting operates over a range of 200 to 253 VAC The Optica s voltage and frequency rating are listed on the rear panel 2 2 50 Sensors Connect the dew point sensor cable to the 25 pin connector in Slot B on the Optica s rear panel see Figure 9 below Connect the optional temperature sensor cable to the 9 pin connector in Slot B on the rear panel The optional pressure sensor and other I O wiring connects to the terminal block in Slot A Main power switch O Wiring Voltage selector AC Power input Temperature sensor Dew point sensor D 25 pin D Sub Optional
24. circuit the output current of which is proportional to the light reflected from the mirror The bridge output controls the electrical current to the thermoelectric cooler A large bridge current develops when the mirror is dry causing the mirror to cool toward the dew point As dew begins to form on the mirror less light is reflected and the bridge output decreases This in turn causes a decrease in cooling current A rate feedback loop within the amplifier ensures critical response causing the mirror to stabilize quickly at a temperature that maintains a thin dew or frost layer on the mirror surface A precision thermometer element embedded within the mirror directly monitors this dew point temperature 4 Optica Operator s Manual Chapter 1 Features and Capabilities 1 5 2 Hygrometer Calibration The Optica unit can be sent to the National Institute of Standards and Technology NIST in Gaithersburg Maryland for certification or to any National Standards lab for calibration against their primary humidity standards A calibrated instrument can then be used as a transfer standard in local laboratories to calibrate lower echelon instruments CAUTION Field calibration is not recommended Hygrometers used as calibration standards must have the following characteristics The mirror thermometer must have suitable long term accuracy such as that obtained with a platinum resistance thermometer Optical Reference Thermoelectri
25. cover For maximum thermal conductivity the base of the Model 0111D pressure boss should be coated with heat conducting grease When so installed on a surface suitable for dissipating heat the sensor will achieve its maximum rated depression See the Chilled Mirror Sensor Comparison Chart in Appendix D Figure 19 Model 1111H Sensor 2 6 2 Model D 2 Sensor The Model D 2 is a general purpose two stage sensor with 65 C 117 F of depression capability It features wetted parts of stainless steel and glass for durability in demanding industrial applications The Model D 2 can be used as a benchtop sensor mounted to a heat sink or mounted to a cooling fan for maximum operating range Advanced features include field replaceable optics and cooler assemblies and auxiliary visible light optics with a viewing window for inspecting the mirror during operation see Figure 20 below For maximum thermal conductivity the base of the Model D 2 sensor should be coated with heat conducting grease When so installed on a surface suitable for dissipating heat the sensor will achieve its maximum rated depression See the Chilled Mirror Sensor Comparison Chart in Appendix D Figure 20 Model D 2 Sensor 24 Optica Operator s Manual Chapter 2 Installation 2 6 3 Model 1211H Sensor The Model 1211H is a two stage sensor with 65 C 117 F of depression capability It features wetted parts of stainless steel and may be used at higher te
26. in Figure 34 below This menu is accessed by selecting More on Menu 1 and pressing ENTER General Number of Data Fields E y LockOut Disabled y Offset Filter Dew Point o o0 fo Temperature o o0 fo Pressure o o0 fo Special Mol Wt Gas 8 9645 Optica Operator s Manual User Equations Equation One Label UserEquationt Equation pamm Tdew C A0 Tdew F A1 HRH wet C aa Ej Communications Parameters Mode Baud rate Parity Data Bits Stop Bits Flow Control Serial Output Data Selected Outputs RH Tmp C Time Stamp Enabled Show Status Enabled e Parameter frumicity v Units rdew c v Format pp ee s e Separator mr I Terminator mr 5 Interval sec ho Decimals x Add Remove K Restore Defaults Set Time and Date Help Ce Figure 34 Menu 2 55 Chapter 4 Programming the VGA Optica 4 6 1 General Table 14 General Options Function Available Options Number of Data Set the number of parameters to be displayed 1 2 3 4 5 6 Fields Set whether or not Heat Cool and PACER functions Lockout can be activated by the softkeys on the front panel Disabled Enabled Dew Point E ER bas Enter value by which the Dew Point nter offset value for Dew Point parameter in C parameter will be offset Offset Enter number of readings to be e eis Enter filter value for Dew Point parameter averaged to create filter
27. or carried off There is of course a trade off between response time control system stability and sensitivity to contamination 38 Optica Operator s Manual Chapter 3 Operation 3 9 1 Supercooled Dew Points Slightly below the freezing point water can exist in a supercooled liquid state for extended periods of time Extra care may be needed when making measurements in the frost point region of 0 to 20 C because the mirror temperature may temporarily stabilize at the supercooled dew point 0 5 to 1 C below the actual frost point To assure that the unit is operating in the ice phase within this temperature range allow the instrument to operate continuously Before manually clearing a frost layer take a reading and afterwards allow sufficient time to reform a stable frost layer before taking further readings 3 9 2 Contamination 3 9 2a Mirror Cleanliness Proper operation of a condensation hygrometer depends on the condition of the mirror surface In general accuracy is reduced when contaminants accumulate on the mirror However the mirror does not have to be microscopically clean In fact the mirror performs best a few hours after cleaning when nucleation sites have formed On an unscratched freshly cleaned mirror there are relatively few nucleation sites on which dew or frost deposits can form and more time is required to collect a condensation layer at low frost points Also overshoot may occur which can cause osci
28. s built in help system Optica Operator s Manual 41 Chapter 4 Programming the VGA Optica 4 2 1 The Keys The following keys on the Optica s front panel are used for programming e ENTER Performs the function shown on a selected control button e TAB Moves cursor to the next field or control button to select it e SHIFT An alternate action key each press toggles SHIFT KEY mode on or off When SHIFT KEY mode is on a green annunciator is displayed in the lower left corner of the screen SHIFT KEY mode does the following accesses the alphabetic characters below the keys on the alphanumeric keyboard causes the TAB key to move the cursor backwards through the fields e Ten alphanumeric keys For entering numbers letters and math functions BSP Backspace During direct data entry deletes the character to the left of the cursor Four softkeys during normal operation control the sensor heating and cooling and balance function during programming move the cursor on the screen and select specific characters for each key on the alphanumeric keyboard 4 2 2 Data Entry Fields There are two types of data entry fields e direct entry e drop down boxes 42 28 BDirect Entry Fields Direct entry fields allow new values to be entered directly from the alphanumeric keyboard Use the left and right softkeys to move the flashing cursor on the screen to the desired character To enter numeric data just press the
29. sLabels gt Btu Ib 0 lt sLabels gt lt sLabels gt Btu lb 32 lt sLabels gt lt sLabels gt pw mbar lt sLabels gt lt sLabels gt Tmp C lt sLabels gt lt sLabels gt Tmp F lt sLabels gt lt sLabels gt Tmp K lt sLabels gt lt sLabels gt Tmp R lt sLabels gt lt sLabels gt psia lt sLabels gt lt sLabels gt mbar lt sLabels gt lt sLabels gt bar lt sLabels gt lt sLabels gt Pa lt sLabels gt lt sLabels gt kPa lt sLabels gt lt sLabels gt mmHg lt sLabels gt lt sLabels gt inHg lt sLabels gt lt sLabels gt KgCm2 lt sLabels gt lt sLabels gt DyneCm2 lt sLabels gt lt sLabels gt lt sLabels gt UserEquation2 lt sLabels gt lt sLabels gt UserEquation3 lt sLabels gt lt Humidity UnitsBaseIndex gt 0 lt HumidityUnitsBaseIndex gt lt TemperatureUnitsBaseIndex gt 17 lt TemperatureUnitsBaseIndex gt lt PressureUnitsBaseIndex gt 21 lt PressureUnitsBaseIndex gt lt UserUnitsBaseIndex gt 30 lt UserUnitsBaseIndex gt lt retval gt GEIAPL SUCCESS lt retval gt lt OpticaA PIReturn gt This response indicates how many humidity labels iHumidityLabels temperature labels TemperatureLabels pressure labels iPressureLabels and UserLabels there are The iLabels value indicates how many labels there are all together 33 Optica Operator s Manual 111 Appendix G Communicating with the OPTICA Using Ethernet G 2 6 Retrieving Analog Output Information This command enables the user to
30. sensor cavity with your hand or place a coin over the sensor cavity 6 Once balanced replace the sensor cap and make sure the balance indicator does not change Optica Operator s Manual 79 Chapter 7 Maintenance 7 1 2 Procedure for Cleaning and Balancing the Sensor Mirror cont 7 From the Optica analyzer press the soft key next to the PACER button or from Optica Java applet running on your PC move your mouse pointer over the PACER button and click The button will turn magenta as shown in Figure 47 below Tdew C v Tmp C A I 9 100 0 20 4 0 20 40 0 20 4 O 20 4o 0 20 40 O 20 4 0 20 4 0 20 4 Menu Display About Help Figure 47 Display with PACER Button Activated If the Automatic Balance is set for Pacer the system will first cool then heat If the unit is set for Auto it will only heat The system will then automatically fine tune the optical balance The word Balance will appear in the lower left of the display followed by the phrase Balance_acquiring The unit will then cool to the dew point and the balance indicator will increase when dew or frost condenses on the mirror The dew point reading might overshoot then it will stabilize assuming the sensor is exposed to constant humidity Figure 48 below shows the possible stages of the balance indicator 80 d e f g a underbalanced clean amp rebalance b mirror in dry state c control at low humi
31. sensor cavity pressure by using the Optica s Process Pressure feature see Figure 27 below Process Pressure P 500 psi e1 Process Vapor Pressure Tdewy Process Dew Point e2 Vapor Pressure at sensor Flowmeter X Tdew Dew Point at sensor Optional Pressure sensor Figure 27 Measurement Scenario 2 3 6 6a Measuring Vapor Pressure Without a Pressure Sensor To measure vapor pressure without a pressure sensor make the following entries in the Pressure input menu section for this example Input Use default Units psia Default 14 7 the pressure at the dew point sensor In addition to accommodate the pressure expansion the following entries are required in the Process section e Status enabled Pressure 500 specify the process pressure with the same units as the default pressure specified above 34 Optica Operator s Manual Chapter 3 Operation 3 6 66 Measuring Vapor Pressure With a Pressure Sensor To measure vapor pressure with a 4 20 mA 0 30 psia pressure sensor connect the equipment as shown above and make the following entries in the Pressure Input menu section Input In 4 20 Units psia Upper 30 00 Lower 0 00 In addition to accommodate the pressure expansion the following entries are required in the Process section Status enabled Pressure 500 specify the process pressure with the same units as the default pressure specified above 66c Measuring D
32. the sensor body when the mirror block is at this minimum temperature is defined as the depression capability of the sensor Depression capability is a function of how many stages the Peltier device has stacked in series Thus a two stage sensor typically has 60 C to 65 C 108 F to 117 F of depression capability and can measure lower dew frost points than a one stage sensor which has 45 C 81 F of depression capability Depression is normally specified at 25 C 77 F ambient temperature For liquid cooled sensors it is specified at the coolant temperature As ambient temperature and therefore sensor body temperature is decreased depression capability also decreases due to the drop off in efficiency of the thermoelectric cooler Therefore there are limitations to using liquid cooled sensors to increase low end measurement range At nominal dew frost points approximately one third of the additional cooling is lost due to cooler inefficiency and does not result in additional measurement range At low dew frost points as much as one half may be lost As ambient temperature is increased depression capability increases resulting in a wider measurement range Optica Operator s Manual 97 Appendix D Chilled Mirror Sensors D 3 Measurement Range The measurement range of a chilled mirror sensor is defined as the temperature range over which a stable dew or frost layer can be maintained on the mirror Note that in order t
33. v ear Y Parameters Units Humidity v Tdew C iv Remove Add 5l q i Reset Download xa owe D Figure 32 Datalog Menu The large window below the center of the screen shows a list of parameters chosen for logging Table 13 Datalog Options Function Available Options Status Enable or disable datalog Enabled Disabled Interval Enter the logging interval in seconds Enter a number Decimals Enter the number of decimal places for logged data Enter a number 6 maximum Separator Choose separator to be used between parameters Space Comma Tab Terminator Choose the terminator s for each group of data CR CR LF LF Parameters Set the parameter to be programmed below Humidity Temperature Pressure or User Equation Units Set the units for the selected parameter See Table 4 on page 44 REMOVE Control button to remove selected item from the list Select button and press ENTER ADD Control button to add the selected unit to the list Select button and press ENTER RESET Delete datalog files Select button and press ENTER DOWNLOAD Control button to display the logged data on the Select button and press ENTER Download screen see below Indicated items apply to the entire datalog file Optica Operator s Manual 53 Chapter 4 Programming the VGA Optica 4 5 8 Datalog cont Use the UP and DOWN arrow keys to select items in the center window Logged data are st
34. 00 GrphColor Green Ce Orange Blue Figure 29 Typical Drop Down Box Optica Operator s Manual 43 Chapter 4 Programming the VGA Optica 4 3 Units of Measure Table 4 below shows the units of measure available for each parameter Table 4 Available Units of Measure Available Units Tdew C Tdew F RH Twet C Twet F ppmv ppmw Humidity Grains lb Grains SCF g kg g m Ib mft kj kgl0 kj kg 32 BTU Ib 0 BTU Ib 32 pw mbar Temperature Tmp C Tmp F Tmp K Tmp R Pressure psia mbar bar Pa KPa mmHg inHg kg Cm Dyne Cm 4 4 User Equations In some applications an output may be needed that is not a simple function of a single parameter but a combination of two or three One or more user equations can be defined within the Optica to calculate new parameters that meet the application s requirements The equation can be formed from following elements the identifiers for the measured or derived parameter units listed in Table 5 on page 45 the math operators x and accessed through the math key in SHIFT mode e the math functions LOG and LN constants other user equations The new parameter defined by this equation is given a name and can be displayed or output just like any other parameter User Equations are entered from Menu 2 see page 55 A list of parameters and other elements is displayed Each element is specified by an identifier such as
35. A1 Use these identifiers to form the equation In addition another user equation can be used as an equation element by entering its identifier 44 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 4 User Equations cont Humidity AO Al A2 A3 A4 A5 A6 A7 A8 A9 A11 A12 A13 A15 Table 5 User Equation Parameters Identifier Units Identifier Units Tdew F RH Twet C Twet F ppmv ppmw grains Ib grains scf g kg g m3 lb mft3 k kgl0 kj kg 32 BTU Ib O BTU Ib 32 pw mbar Tdew C A17 A18 A19 A20 Pressure Units A21 A22 A23 A24 A25 A26 A27 A28 A29 Pa kPa mmHg inHg kg cm2 Dynes cm2 User Equation 1 User Equation 2 User Equation 3 The equation 2 x Tdew F RH Twet C would be entered as 2 x Al A2 A3 Optica Operator s Manual 45 Chapter 4 Programming the VGA Optica 4 5 Menu 1 The first menu is shown in Figure 30 below This menu is accessed by selecting the Menu control button on the main screen and pressing ENTER Analog Outputs Output A y Parameter Humidity w Units Tdew c y Upper 160 00 Lower 1 40 00 pPressure Input Input lin 4 20 y Units psia m Upper 50 00 Lower 10 00 Defaut 14 70 Process Status Disable v Pressure 14 70 Alarms Alarm y Status Disabled y Parameter Humidity y Units Tdew C y Type SetPoint y Upper 100 00 Lower 1100 00 Automatic Ba
36. Aa 107 Alarm A Oke Sasa ce aes 108 Analog Output Information 112 Available Commands 04 106 Direct Communication e ii es 105 Labels and Functions oo ooooo o 110 Measured and Calculated Values 112 Supported Unison as De 109 Using a Computer cesta are 106 F EMS ss AR 23 Ploy Rates di Chae oe Sees 23 Functional Specifications ese iones 88 Functions Retrieving with Ethernet 110 G Gaseous ContaminantS o oooooooomoooo o 40 General Settings 4x40 Optica os niin aa esed A ep Saas oe dus 70 VGA Optica ts exces Seat 56 O ecce oda te acd tus EA acd to f 101 H Heat Pump Controller SettingS 27 Humidity Conversion Chart aso i Soit e RAS CER 93 GU ALOIS lt 5 oda hoo uarie tu See o EU a 92 Symbols O PRESS v 91 Humidity Equations Vapor Pressure x odisea aa 92 Hygrometer Applications 24 eure Re ER RA PREX MA 6 Calibration v x esee de Cau CP ACER a 5 DIAS AA A Ea S 3 FPUNCHONS Aaa 4 116 Inner Band Alarm a A 19 A A 3 Installation Benelli brotar e See Pula 9 Rack Mounts cardio xa en Ev Ra ensi 10 Sampling Lines e ei WIR 21 SOHEOIS r2 id is A aioz 24 Wall Mount sl alts parla posto 14 Wall Mount Wiring a ds 4E EA n 13 M Maintenance Calibration cusd Le Lira Sae SCREAM Deis 84 Cleaning the Sensor Mirror liess 77 Replacing Sensor Mirrors 0000 82 Sample Line td Bae we 40 Sensor Optics
37. Appendix D Chilled Mirror Sensors D 4 Comparing Optica Models Table 35 Chilled Mirror Sensor Comparison Chart Model Model Model Model Model Model 1111H D 2 1211H SIM 12H 1311DR 1311XR Standard Accuracy System Performance Optical Accuracy Cooling Stages 4 Depression at 25 C 77 F 1 atm in air 95 C air 105 C with 15 C coulant 112 C with 15 C coulant Typical Measurement Range at given ambient 1 atm 25 C ambient 15 to 25 C Dew Frost Point 35 to 25 C 35 to 25 C 60 to 25 C air 70 C to 25 C liquid 80 to 25 C RH equivalent 6 to 10096 From Optica 1 596 to 10096 Functional Characte From Optica 1 596 to 10096 From Optica ristics 115 230VAC 75 watts 0 03 to 100 air 0 00796 to 100 liq 115 230VAC 300 watts 0 0003 to 10096 115 230VAC 700 watts Ambient Temperature Range 15 to 80 C 15 to 100 C 15 to 50 C 0 to 35 C 0 to 35 C Pressure Range 3 to 200 psig 0 to 300 3 to 50 0 to 300 0 to 100 Auxiliary Cooling No No No Standard air or liquid Standard liquid Sensor Cavity Material Epoxy coated Aluminum Complete system at 25 C 77 F Optica Operator s Manual Stainless Steel Stainless Steel Anodized Aluminum Stainless Steel Stainless Steel
38. Clean and balance the sensor mirror refer to page 77 An alternative method for checking the accuracy of the unit s electronics is to use a precision resistance decade box in place of the platinum thermometer Wire the decade box to the unit s sensor connector as shown in Figure 49 below and verify that the resistance settings shown in the table produce the temperatures shown J Optica K 1123HK Sensor T Cable L Connector 7 Optica D2 15 Sensor 8 Cable 14 Connector e T r o o o5 ou QU cr oa PA x O Resistance Table Din Type 100 Ohms at 0 C 0 385 Ohms C Resistance Display Reading Ohms C 0 1 F 0 2 76 33 60 0 76 0 96 09 10 0 14 0 100 00 0 0 32 0 103 90 10 0 50 0 123 24 60 0 140 0 OOOO Figure 49 Using a Resistance Decade Box Optica Operator s Manual 85 Chapter 7 Maintenance 7 4 4 Balance Remains on the Status Line When the word Balance remains displayed on the front panel for more than 15 minutes the instrument has not recovered from a PACER cycle Check that the sensor and sensor cable are connected If necessary connect them and the unit will complete the PACER cycle after a short time 5 to 15 minutes The sensor optical bridge may be out of balance refer to page 77 7 4 5 No Analog Output If there is no analog output but the digital dis
39. E N PREVAILING DEW POINT MIRROR HEATS MIRROR COOLS TO DRY STATE MIRROR RETURNS AND COALESCES 90 SEC TO DEW POINT 30SEC lt 60 SEC Figure 3 A Typical PACER Cycle This excess water easily dissolves any water soluble contaminants The mirror is then heated During the heating phase the large puddles of water gradually evaporate carrying increasingly heavy concentrations of salts as the puddles become smaller Finally when all the puddles have evaporated dry islands of crystallized salt are left on the mirror The area between the islands 80 85 of the mirror surface is now clean and shiny whereas before the PACER cycle it may have been completely covered The total amount of contamination has not been reduced but instead redistributed as shown in Figure 4 below with more clean mirror surface available for dew formation The reflected light signal is then electronically balanced against the reference Before After PACER Cycle PACER Cycle Figure 4 Results of the PACER Cycle Optica Operator s Manual 7 Chapter 1 Features and Capabilities no content intended for this page 8 Optica Operator s Manual Chapter 2 Installation Chapter 2 Installation 2 1 Introduction This chapter explains the installation of the benchtop and wall mount versions of the Optica the various sensors used with the system and the 1 O and power wiring 2 2 Benchtop Installation 2 2 1 Mounting the B
40. Finally press the up or down arrow softkeys to step through the letters available for that key both upper and lower case Note that certain settings have numeric values that are restricted to certain choices For example the number of stop bits for serial output may be 1 1 5 or 2 and may have no other values This entry is selected from a list of choices not entered as a numeric value 5 After choosing a value for a setting press ENTER to lock it in Or you can press the LEFT key to cancel the entry restoring the original value and return to choose another setting To return to the function choice press the LEFT key 62 Optica Operator s Manual Chapter 5 Programming the 4x40 Optica 5 1 Programming Technique cont A typical programming screen for setting the Analog Outputs is shown in Figure 38 below Analog Outputs Output A Parameter gt gt Temperature Figure 38 Typical Analog Outputs Programming Screen An example of programming the Serial Baud Rate is shown in Figure 39 below Press the DOWN and RIGHT gt gt gt gt softkeys as shown to select the parameter to be programmed choose the value using the UP and DOWN softkeys and press ENTER Analog Outputs Press left softkey to cancel and or return to previous position Communication Parameters Down Serial Output Units ENTER Baud rate set Figure 39 Programming the 4x40 Optica Optica Operato
41. GE Measurement amp Control Moisture Optica Operator s Manual A40238752 Rev E imagination at work April 2012 Optica General Eastern Dew Point Analyzer Operator s Manual A40238752 Rev E April 2012 WWW ge mcs com 2012 General Electric Company All rights reserved Technical content subject to change without notice no content intended for this page Contents Chapter 1 Features and Capabilities 1 1 1 2 1 3 1 4 1 5 1 6 2 1 22 2 3 2 4 2 5 2 6 Introduction iren obere Vel ruere AS c VS AS e SP SL IN SLE 1 Electronics Enclosurescs eu genes LES EA NL CREE ERE Ve UE NL See eh 2 1 2 4 Eront Paneli a D Re Oh te ee ea Ee Pe Hr b Ae e scade reda e end 2 1 2 2 Inp t Output Capability i i i ameet BH ee leac ede ad ane He so e eerie ad d deeds 3 UIN LII P m 3 1 3 System COMPONENS asta oet oon edt tems td O tas doeet a scat dan thes 3 1 3 2 System Planning ue a LEER DE OR E S es praedi 3 SENSIS ac ovo a it bebe ea ia lata be heed ods 3 LADEN PMA td tdci 4 1 42 Temperature EOS eri ia Dt a er Sa beard E e Es ote Paci ja ti eerta 4 1 4 3 Pressure EOS ia A AAA tii 4 TICO a ER de po ate eder ee e Ede D ec UR 4 1 31 Hygrometer Functions v dese pets exe RE VN NR U WM ee EN e p 4 152 Hygrometer Calibration ac us sete LA eR dais 5 1 5 3 Other Hygrometer Applications sess oie i eem ha 6 The PAGER Cycle sirar
42. L E31 XR Sensor iiu sss tA A da 26 2 6 6 Model SIM 12H Heated Sensor and Components 0 eene 28 2 6 7 Connecting the Sensors 35 8 66 ech A RUE MEREYRERBUS CEPI ERU MERE 28 Optica Operator s Manual iii Contents Chapter 3 Operation Sul Otro UCA a Uo ber otro Vor o ose t a e ed RI EIU ose sta eb st Md opp utu 29 3 2 Normal Operation zi A ewe ene e E ehe iis es e esten aan e Man a ene IR US 29 3 3 Operating the VGA Optica ui need a A edocet e Dodo dedos ite eodera sea 30 3 4 Operating the 4x40 Optica 5o isdac eerte we arabe had iba da 30 3 5 Network Operation c oos eie veio AD CE E E A ELDER ATI ECRIRE IA ESSI E RR 31 320 BrOcess PIES Uta ono toda to arado teda nace 32 3 6 1 Actively Measuring Process Pressure oo ooooooooorrrr ees 32 3 6 2 Manually Entering Pressure date nate eee ten rr 32 3 6 3 Measuring at a Different Pressure 1 eee hr teen ene 32 3 6 4 Scenario 1 Measurement Without Enabling the Process Pressure Feature 00 0 0 e eee o 33 3 6 5 Measuring DEW Potasio a ane Cat Gace Nah pb A PSP T er OS ees 34 3 6 6 Scenario 2 Measurement Requiring the Process Pressure Feature 0 0 20 00 ees 34 3 7 Status Line Indications esset eve AAA daa 36 3 141 Factory Default Settings idet ete ends Oda ee eL p wha BP eka es ee WADE 37 3 8 Sensor Balance a ae 38 3 9 Helpful Hints For Operating the Unit o oooooooooooorrrr cc cent an 38 3 9 J Supercooled Dew Pomts i
43. Manual Appendix B Humidity Equations and Conversion Chart water Vapor Pressure mm Hg 0007 parts per Million Water Vago by Volume ppm at One Atmosphere Pounds of Water per million Cubic Feet at 60 and One Atmosphere illigrams of Water pe 400 Mier at 60 Fang 0007 oo gt e 49 a One Atmosphere eS o Dew Point Temperatura x X Fahrenheit 12 Dew Point Temperature Centigrade All conversions are based on ideal gas behavior ALIGN STRAIGHT EDGE WITH KNOWN QUANTITY AND CENTER MARK TO READ EQUIVALENT VALUES ON OTHER SCALES WATER VAPOR CONVERSIONS Figure 50 Graphical Humidity Conversion Chart Optica Operator s Manual 93 Appendix B Humidity Equations and Conversion Chart no content intended for this page 94 Optica Operator s Manual Appendix C Configuring the Serial Interface Appendix C Configuring the Serial Interface C 1 Wiring to a Personal Computer The Optica is configured as Data Terminal Equipment DTE The following pins are used on the Serial interface 2 Transmitted data TXD e 3 Received data RXD 5 Signal ground GND To send the output of the Optica to a personal computer use the cable arrangement shown in Figure 51 below Optica 9 Pin Male Figure 51 Wiring Diagram Optica to Personal Computer Optica Operator s Manual 95 Appendix C Configuring the Serial Interface no content intended for this page 96 Optica
44. Offsets filters lockout Set user defined calculated values Enter the current time and date Set molecular weight of sample gas Restore default settings For factory use only 61 Chapter 5 Programming the 4x40 Optica 5 1 Programming Technique The functions of the four softkeys to the right of the display change according to the current state of the unit These functions if any are displayed at the right edge of the screen While programming these keys are labelled UP DOWN LEFT displayed as lt lt lt lt and RIGHT displayed as gt gt gt gt Below is the general method for programming the unit 1 To access the programming menus press the ENTER MENU key 2 Press the DOWN key to step through the functions that can be programmed shown in Table 19 on page 61 3 Fora particular function press the RIGHT key to display the first setting for the function Press the DOWN key to step through its available settings 4 Fora particular setting press the RIGHT key to open the setting for editing If the setting uses a list of specific choices the DOWN key and or UP key are shown Press them to step through the choices If the setting requires a numeric or alphanumeric entry use the keypad to enter the data Note To enter numeric data just press the appropriate key To enter alphanumeric data first press SHIFT to access the letters on the keypad and then press the appropriate key containing the desired letter
45. Sample Flow 0 5 to 5 0 scfh 0 25 to 2 5 L min Optica Operator s Manual 87 Appendix A Specifications A 1 3 Response Time A 1 3a Dew Frost Point Cooling Rate 1 5 C 2 7 F sec typical above 0 C 32 F A 1 5b Temperature Response optional 7 sec for step change within 25 C to 70 C 77 F to 158 F A 1 5c Pressure Response optional 1 sec to 90 of steady state 10 to 90 change Update Time 1 sec A 2 Functionality Outputs 4 20mA DC 500 Ohm maximum load 0 5 VDC 5mA maximum Digital Output Serial port A 2 1 Alarms A 2 1a Relay optional Form C SPDT 5A 250 VAC resistive load Displays 640 X 480 pixel color LCD or 4 line X 40 char LCD Power 95 to 265 VAC 10 50 60 Hz 200 W A 2 2 Operating Ranges A 2 2a Dew Point Sensors Ambient Temperature 15 C to 80 C 5 F to 176 F depending on sensor Pressure 0 to 300 psig 0 to 22 bar depending on sensor A 2 2b Electronics Ambient Temperature 0 C to 50 C 32 F to 122 F Relative Humidity 85 maximum 88 Optica Operator s Manual Appendix A Specifications A 3 Physical bench mount A 3 1 Dimensions 13 5 W x 6 5 H x 13 D 353 x 165 x 330 mm A 3 2 Weight 8 lbs 3 6 kg A 3 3 Shipping Weight 15 lbs 7 kg A 3 4 Environmental General purpose bench panel or rack mount A 4 Physical wall mount A 4 1 Dimensions 3 5 W x 16 5 H x 6 5 D 343 x 419 x 165 mm A 4
46. a Balston type DX filter element To filter out very fine particles the type DX can be followed by a type BX filter A type CI filter can be used to remove hydrocarbon vapors If the sample gas is heavily and routinely contaminated we recommend using a quick change filter element Avoid using glass wool cellulose and other hygroscopic materials as a filter medium 2 5 3d Flow Rate It is important to have adequate flow through the sensor Too little flow can slow the response particularly at very low frost points Too much flow can cause instability of the control system at high dew points and can reduce the depression capability of the thermoelectric cooler at very low dew points Too much flow also accelerates the rate of system contamination A flow rate of 2 to 2 5 ft3 h a httle over 1 liter min 1s ideal for most applications In many cases flow rates between 0 2 and 5 ft3 h 0 1 and 2 5 liter min may be used Optica Operator s Manual 23 Chapter 2 Installation 2 6 Sensor Installation This section provides installation details for the GE Measurement amp Control line of chilled mirror humidity sensors 2 6 1 Model 1111H Sensor The Model 1111H is an open type sensor see Figure 19 below It can be threaded into standard pipe fittings or mounted in a type 0111D pressure boss which encloses it and adapts it for 4 inch compression fittings When installing the sensor in the pressure boss remove the black aluminum sensor
47. aAPLxml GetHTPLabels 0 Function Name GetHTPLables Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIReturn Function GetHTPLabels gt lt channel gt 0 lt channel gt lt iHumidityLabels gt 17 lt iHumidityLabels gt lt sHumidityLabels gt Tdew C lt sHumidityLabels gt lt sHumidityLabels gt Tdew F lt sHumidityLabels gt lt sHumidityLabels gt RH lt sHumidityLabels gt lt sHumidityLabels gt Twet C lt sHumidityLabels gt lt sHumidityLabels gt Twet F lt sHumidityLabels gt lt sHumidityLabels gt ppmv lt sHumidityLabels gt lt sHumidityLabels gt ppmw lt sHumidityLabels gt lt sHumidityLabels gt Grains Ib lt sHumidityLabels gt lt sHumidityLabels gt Grains SC F lt sHumidityLabels gt lt sHumidityLabels gt g kg lt sHumidityLabels gt lt sHumidityLabels gt g m3 lt sHumidityLabels gt lt sHumidity Labels gt Ib Mft3 lt sHumidityLabels gt lt sHumidityLabels gt kj kg 0 lt sHumidityLabels gt lt sHumidityLabels gt kj kg 32 lt sHumidityLabels gt lt sHumidityLabels gt Btu lb 0 lt sHumidityLabels gt lt sHumidityLabels gt Btu lb 32 lt sHumidityLabels gt lt sHumidityLabels gt pw mbar lt sHumidityLabels gt lt iTemperatureLabels gt 4 lt iTemperatureLabels gt lt sTemperatureLabels gt Tmp C lt sTemperatureLabels gt lt sTemperatureLabels gt Tmp F lt sTemperatureLabels gt lt sTemperatureLabels gt Tmp K lt sTemperatureLabels gt lt sTemperatu
48. age heated sensor e Model 1311DR Four stage liquid or air cooled sensor Model 1311XR Five stage liquid cooled sensor 1 4 2 Temperature Sensor e Model T 100E 1 43 Pressure Sensor e Model PT 30A or PT 300A 1 5 Theory of Operation Optical condensation hygrometry is a precise technique for determining the water vapor content in gases by directly measuring dew point or frost temperatures Using this technique a metal mirror is cooled until it reaches a temperature at which a thin layer of condensation begins to form on it The dew layer is detected optically and the mirror is held at that temperature The mirror temperature measured with a platinum resistance thermometer is an accurate indicator of the dew or frost point Because these hygrometers are so accurate they are widely used as a standard in many of the world s metrology laboratories 1 5 1 Hygrometer Function Figure 2 on page 5 illustrates how GE Measurement amp Control hygrometers detect and measure dew point The condensate mirror is illuminated with a solid state infrared emitter IR A photodetector monitors the IR light reflected from the mirror The photodetector is fully illuminated when the mirror is clear of dew and it receives less light as dew forms A separate LED and photodetector pair are used as a known reference to compensate for any thermally induced changes in the optical components The photodetectors are arranged in an electrical bridge
49. an be performed at any time but are only necessary when the Service indicator appears on the status display indicating that service is required 7 1 1 Cleaning and Balancing the Sensor Mirror Under normal conditions the system is self checking and self balancing However there are occasions when particulate matter and water soluble contaminants reduce sensor mirror reflectance and system accuracy see Contamination on page 39 Three features of the Optica system allow users to monitor and adjust the mirror The balance indicator shown in Figure 44 below provides a graphic display of how much light is received by the mirror s photodetector It is also an indicator of the dew layer thickness This indicator increases and decreases in digital steps The bias screw adjusts the light signal received by the reference photodetector and is used as a coarse adjustment The automatic balance or PACER cycle discussed on page 7 electronically fine tunes the optical balance between the IR emitters and reference photodetectors In operation the position of the balance indicator will depend on the level of humidity and the sensor used As the humidity changes the chilled mirror system will seek to establish control As contaminants deposit on the mirror the optical balance indicator will increase as will the dew point readings The PACER cycle or manual cleaning and balancing followed by the PACER cycle will mitigate the contaminatio
50. appropriate key e To enter alphanumeric data first press SHIFT to access the letters on the keypad and then press the appropriate key containing the desired letter Finally press the UP or DOWN arrow softkeys to step through the letters available for that key both upper and lower case 42 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 2 2a Direct Entry Fields cont Note Itis NOT necessary to press ENTER after setting each value into its field Figure 28 below shows a typical direct entry field with the GrphMin Graph Minimum field selected and ready for Units Tdew pa GrphMax fe0 0000 numeric input from the keypad GrphMin Grphtolor creen Decimals 1 Figure 28 Typical Direct Entry Field 4 2 26 Drop Down Boxes Most programming is done using drop down boxes that allow the user to select from a list of possible choices for the field First select the field with the TAB key A drop down list showing the available options opens immediately below the selected field Be careful not to confuse this drop down list with other fields below the selected one they look similar Use the UP and DOWN arrow softkeys to select the desired value for the field When finished press TAB to move to the next field Figure 29 below shows a drop down entry box with the GrphColor Graph Color field selected and ready for choosing the desired color using the UP and DOWN arrow softkeys arphMin 40 00
51. arm 18 Optica Operator s Manual Chapter 2 Installation 2 42b Inner Band Alarm For the Inner Band alarm type the alarm relay activates whenever the parameter value is between the lower and upper limits x D 9 o E S S 3 a 2 42c Outer Band Alarm Alarm Deactivated Alarm Alarm Activated Deactivated UPPER edge of band LOWER edge of band NO contacts NC contacts closed closed Figure 17 Inner Band Alarm For the Outer Band alarm the alarm relay activates whenever the parameter value is greater than the upper limit or less than the lower limit Optica Operator s Manual Parameter Alarm Activated Alarm Alarm Deactivated Activated UPPER edge of band LOWER edge of band NC contacts NO contacts closed closed Figure 18 Outer Band Alarm 19 Chapter 2 Installation 2 4 5 Serial Output The Serial Output connector is located at the lower left of the rear panel of the bench mount unit and the bottom panel of the wall mount unit The output provides RS 232C serial communications between the unit and a terminal or a PC running in terminal emulation mode The connector is a standard 9 pin D connector For connection to another serial device the cable is wired as shown below For a basic interface without handshaking only pins 2 3 and 5 RX TX and GND on the Optica connector are needed Pin connections are given for both 25 pin and 9 pin devices Opt
52. as Make sure the sensor cavity is depressurized before continuing with the next step Open the sensor by removing the sensor cover Unscrew and discard the old mirror using a 3 16 inch 0 187 hex socket Use a toothpick or similar tool to place a small amount of thermal compound in the hole supporting the mirror CAUTION Do not apply thermal compound to the mirror stem Do not use an amount large enough to leak out when the mirror is tightened Do not allow any compound to get on the mirror surface as it is very difficult to remove completely Carefully screw in the new mirror and tighten to the proper torque as specified for the particular sensor Carefully clean the mirror surface using a cotton swab and the GE cleaning solution supplied with the maintenance kit Distilled alcohol or diluted alcohol is also acceptable Replace the cover and return the sensor to normal operation Under some circumstances a new mirror may operate in a somewhat unstable manner for the first hour or two Optica Operator s Manual 83 Chapter 7 Maintenance 7 3 Test and Calibration The procedures in this section effectively test and or calibrate the following aspects of the Optica Startup and power supply voltage Normal sensor operation Front panel display Digital and analog outputs The unit has been completely tested and calibrated at the factory and is ready to plug in and operate As shipped it meets all of our published sp
53. at sink temperature of 25 C The thermoelectric cooler pumps heat from the mirror into the heat sink By reducing the temperature of the heat sink with a coolant such as chilled water or by applying the sensor in a low temperature condition such as monitoring of a test chamber even lower dew points can be measured In meteorological applications where the heat sink temperature is considerably lower frost points down to 75 C can be monitored Four and five stage sensors are available for measuring the lowest dew frost points 6 Optica Operator s Manual Chapter 1 Features and Capabilities 1 6 The PACER Cycle GE Measurement amp Control has developed and patented a compensation technique called PACER Programmable Automatic Contaminant Error Reduction that is very effective in reducing the Raoult Effect error associated with soluble contaminants particularly for near ambient dew points The Optica is equipped with the PACER cycle as well as AUTO balance as found on earlier models The user can choose which self cleaning and balancing routine to run depending on the severity of contamination The PACER cycle diagrammed in Figure 3 below begins with a coalescence period during which the mirror is cooled well below the dew point of the sample gas condensing out a large amount of water DATA IS SAMPLED AND HELD 8 MIN OPTICAL SYSTEM AUTOMATICALLY ADJUSTS FOR CORRECT REFLECTANCE 5 SEC uy 9 5 o u o E c
54. at which to initiate the Automatic Cleaning and Balancing a Highlight either Auto D or Pacer D b In the Enter Time dialog box input the time of day that you would like to initiate the balance cycle in a 24 hour format for example 13 30 would be 1 30 PM Note In this mode the front panel PACER initiation function is disabled Powering down and restarting the unit will have no effect on the time programmed however the PACER will run on startup as is the normal function 6 To program an elapsed time to initialize the Automatic Cleaning and Balancing a Highlight either Auto or Pacer b In Interval dialog box input the elapsed time in minutes for example 720 would enable the balance cycle to run every 12 hours Note Ifthe unit is powered down and restarted or the Automatic Balance is initiated from the font or by using a LAN the elapsed time will reset Note Show Status should read Enabled 7 Select either Track or Hold for the analog outputs 4 20 mA 0 5 VDC Note IfTrack is selected the actual temperature of the mirror will be transmitted If Hold is selected the last prevailing dew point measured before the balance cycle was initiated will be transmitted during the time that the balance cycle is running IMPORTANT For environments or a gas sample where the mirror accumulates contamination rapidly the use of an inline filter is recommended Lower flow rates will also reduce the accumulation of contaminants
55. ayed he Press the ENTER key to select j Press the DOWN soft key to enable the PACER status k Press the gt gt gt gt soft key to enter selection mode Press the UP or DOWN soft key until the enabled status is displayed m Press the ENTER key to save the selection n Press the lt lt lt lt key several times to exit the menu o Under the Type pull down menu there will be four selections see Table 27 below 68 Optica Operator s Manual Chapter 5 Programming the 4x40 Optica 5 2 8 Automatic Cleaning and Balance Function cont Table 27 Automatic Cleaning and Balance Functions Function AUTO Heats the mirror and balances the optics Elapsed Time Interval First cools the mirror to develop a thick dew frost PAGER layer then heats and balances the optics Elapsed Time Interval AUTO D Heats the mirror and balances the optics Clock Time Interval First cools the mirror to develop a thick dew frost layer then heats and balances the optics PACER D Clock Time Interval Note The PACER function will provide more thorough cleaning than the AUTO function because it first develops a thick dew frost layer into which soluble contaminants dissolve When heated some of the contaminants are flash evaporated and the remaining residue accumulates in clusters resulting in the cleaning of much of the mirror 5 surface The PACER cycle generally takes longer to complete 3 Manually clean the mirror as requi
56. c Heat Pump Power Dew Point Temperature Precision Thermometer Figure 2 Chilled Mirror Hygrometer Diagram Optica Operator s Manual 5 Chapter 1 Features and Capabilities 1 5 3 Other Hygrometer Applications Many GE Measurement Control Chilled Mirror Hygrometers are used in industrial applications in addition to metrology The optical condensation hygrometer is not readily damaged or contaminated by industrial process gases that can degrade other secondary measurement schemes such as saturated salt and polymer based sensors If the sensor or sampling components should become contaminated with oils salts etc they can be cleaned without harm to the sensor or impairment to the system accuracy The performance of the hygrometer can be checked at any time by heating the mirror above the dew point causing the dew deposit to evaporate then reclosing the servoloop and checking to see that the system cools and returns to the same dew point The GE optical condensation sensors cover a wide range of applications limited only by the heat pumping capabilities of the thermoelectrically cooled mirror At high dew points up to 100 C the sensor is limited by the thermal properties of the solid state optical components as well as the thermoelectric heat pump capacity In a typical application measuring sub ambient dew points a two stage thermoelectrically cooled mirror can reach a temperature approximately 65 C lower than an ambient he
57. ce 60 minutes minimum Set the type of balance see Sensor Type Balancing on page 38 Auto PACER Enable Set whether the balance will take Enabled Disabled place Set whether display analog outputs and alarms will track the sensor Analog Output condition during a cleaning cycle or Track Hold Tracking hold the last process reading Serial output will always track the process reading Optica Operator s Manual 103 Appendix F Automatic Balance for earlier software versions An A S o _ _ _ __Q _ e o ss sos no content intended for this page 104 Optica Operator s Manual Appendix G Communicating with the OPTICA Using Ethernet Appendix G Communicating with the OPTICA Using Ethernet G 1 Direct Communication The networking configuration for an OPTICA VGA model can be done using the front panel The networking configuration for a 4x40 with Ethernet capability can be configured using the RS 232 port and the following commands Note lt gt means carriage return SetIPAddress lt IPADDRESS gt lt gt i e 127000 nn Example SetIpAddress 127 0 0 0 0 lt gt SetSubnetMask lt SubNetMask gt 1 e 255 255 255 0 r n Example SetSubnetMask 255 255 255 0 lt gt SetDefaultGateway lt Gateway gt i e 0 0 0 0 r n SetHostName lt HostName gt lt gt i e Optica vn SetIPSource lt STATIC gt lt gt STATIC IP r n SetIPSource lt DHCP gt lt gt DHCP IP r
58. d Using a 250 ohm resistor the voltage output is calculated by Tactual Tlower 7 l veut barra ats de ee yielding an output voltage of 1 92V for this example 3 9 4 1 les 4 1 192V 2 4 2 Alarm Outputs Each alarm output connects to the contacts of a 5 Amp Form C SPDT relay Make connections as follows For normally open contacts connect to NO and COM For normally closed contacts connect to NC and COM Any available parameter can be used to control an alarm relay by programming the parameter name and its threshold values An alarm can also be programmed to monitor the state of the Control PACER Balance or Service indicators See Chapter 4 5 or 6 for programming instructions Two threshold values are programmed for each parameter an upper and a lower value These values designate an alarm band How they are used depends on the alarm type programmed Details of the alarm bands are shown on the following pages 2 4 2a Set Point Alarm For the Set Point alarm type the alarm band provides hysteresis to prevent frequent operation of the alarm relay when the parameter is near the specified value The relay is activated when the parameter exceeds the upper limit and deactivated when the parameter goes below the lower limit Alarm Alarm Deactivated Activated Deactivated Activated UPPER edge of band a o 2 o E w y G a LOWER edge of band ND contacts Figure 16 Set Point Al
59. del SIM 12H Heated Sensor and Components The SIM 12H heated sensor module is suitable for measuring dew frost points between 10 C and 85 C It contains precision heating as well as cooling capability Three separate heaters are located in the sensor walls 120 degrees apart Three temperature sensors measure the body temperature at those points and three control circuits precisely adjust the temperature of each heater Any detected temperature gradient across the sensor cavity is immediately eliminated resulting in very even control All three heaters are controlled by the temperature set by the front panel selector knob The sensor is a two stage unit providing 65 C of depression capability and 60 C actual measurement range 2 66a Type SIM HFT Heated Filter Module The SIM HFT heated filter module allows the sample gas to be purged of particulate contaminants prior to entering the sensor The incoming gas is first passed through a 90 micron prefilter then a 15 micron final filter All parts in contact with the sample are heated to a constant 105 C eliminating any possibility of condensation The sintered filters are easily removed for cleaning or replacing if required 2 660 Type SIM HFM Heated Flow Meter The SIM HFM heated flow meter module allows the sample gas flow rate to be both measured and controlled at a rate that is optimum for the sensor A metering valve mounted on the front panel allows control over a range of 0 to 2 f
60. display used to identify the large screen Optica 4x40 Four lines by 40 characters per line used to identify the small screen Optica Optica Operator s Manual 101 Appendix E Glossary no content intended for this page 102 Optica Operator s Manual Appendix F Automatic Balance for earlier software versions Appendix F Automatic Balance for earlier software versions F 1 Programming Automatic Balance for a VGA Optica Note For Optica Analyzers with software version 1 4 1a or later see Automatic Cleaning and Balance Function on page 49 Table 36 Automatic Balancing Options Function Available Options Enter the interval in minutes Interval Set how often the automatic balance takes place 60 minutes minimum Set the type of balance Type see Sensor Balancing on page 38 Auto PACER Status Set whether the balance will take place Enabled Disabled Set whether the display analog outputs and Track Hold alarms will track the sensor condition during a Track Hold cleaning cycle or hold the last process reading Serial outputs always hold the process reading F 2 Programming Automatic Balance for a 4x40 Optica Note For Optica Analyzers with software version 1 4 1a or later see Automatic Cleaning and Balance Function on page 68 Table 37 Automatic Balancing Options Setting Description Available Options Set how often the balance takes Enter the interval in minutes Interval in Minutes pla
61. dity d control at low medium humidity e control at medium high humidity f control at high humidity g over balanced or contaminated clean amp rebalance Figure 48 Stages of Balance Indicator Optica Operator s Manual Chapter 7 Maintenance 7 1 2 Procedure for Cleaning and Balancing the Sensor Mirror cont When a stable dew or frost layer is attained you will see the word Control in the lower left The Optica is now reading the correct dew frost point and a stable dew or frost layer has been established When the Optica is exposed to typical room humidity this process takes 5 6 minutes For very dry conditions the unit may not display Control for several hours however the PACER indicator will go out The sensor must first accumulate a dew or frost layer on the mirror before it can display Control 8 If you see the word Service displayed in the lower left repeat steps 1 7 Optica Operator s Manual 81 Chapter 7 Maintenance 7 2 Field Replacement of Sensor Mirrors One advantage of using a GE Measurement amp Control chilled mirror dew point sensor is that the mirror is user replaceable The sensor does not have to be returned to the factory for replacement of the reflective surface unless that is desired A mirror may require replacement for any of the following reasons The mirror is constructed of silver rhodium plated copper Copper provides excellent thermal conductivity to the platinum thermo
62. e Status to Disabled Note The pressure measured by the pressure sensor will be used to compute the vapor pressure 3 6 2 Manually Entering Pressure Use when the process pressure is a known and fixed value and will not be actively measured In the Pressure Input menu set the Pressure Input to Use Default Enter the pressure into the Default field Set the Process Pressure Status to Disabled Note The default pressure entered will be used to compute the vapor pressure 3 6 3 Measuring at a Different Pressure Use when the humidity must be measured at a pressure that is lower or higher than the process pressure but the reported value must represent the humidity at the process pressure Scenario 2 below gives examples of programming the Optica for this case Note The process pressure is entered manually and the humidity sensor pressure may be measured or manually entered Examples of the use of the Process Pressure menu are shown 32 Optica Operator s Manual Chapter 3 Operation 3 6 4 Scenario 1 Measurement Without Enabling the Process Pressure Feature Process pressure is 100 psi within the range of a typical GE chilled mirror sensor Since vapor pressure and dew point are pressure dependent a flow meter is installed downstream of the sensor to assure that the sensor cavity is at the process pressure see Figure 26 below Process Pressure P4 100 psi e Process Vapor Pressure Tdew Process Dew Point Op
63. e 7 In most applications 1t is desirable to perform a balance operation periodically to maintain optimum performance The interval and type of balance are configurable as described in the Optica programming chapters If the Service indicator is displayed after a balance operation the sensor may need to be adjusted see Minor Maintenance of Sensor Optics on page 77 3 9 Helpful Hints For Operating the Unit Time response At dew points above 0 C the system stabilizes within a few minutes at a consistent dew layer The status Control is displayed when the system is stable and readings are valid When the system is operating at low frost points below 40 C extra care may be required when interpreting readings because of the longer response times of the system Time response depends on a number of factors including dew frost point slew rate upstream filtering and flow rate e As the dew frost point becomes lower water molecules in the air sample become scarcer and it takes longer to condense a frost layer on the mirror thick enough to establish an equilibrium condition Mirror temperature slew rate depends on dew point and depression the temperature difference between the mirror and the sensor body at higher dew points and moderate depressions it is typically 1 5 C second At lower dew points and or larger depressions the slew rate is slower Flow rate affects response by determining the rate at which water vapor is supplied
64. e number of data bits as required by the receiving device Set the number of stop bits as required by the receiving device Set the flow control as required by the receiving device Available Options All Query see Query Mode Format on page 57 300 1200 2400 4800 9600 19200 38400 57600 None Odd Even Mark or Space 7or8 1 150r2 None Software Hardware Optica Operator s Manual Chapter 5 Programming the 4x40 Optica 5 2 3 Serial Output Units Table 22 Serial Output Unit Options Setting Description Available Options See Table 4 on page 44 for the Humidity Units Set the units for humidity parameter chosen See Table 4 on page 44 for the parameter chosen Temperature Units Set the units for temperature See Table 4 on page 44 for the Pressure Units Set the units for pressure parameter chosen Choose from any available User User Units Set the selected user equation Equation Note The TAB key selects or deselects the desired output units If selected the number of decimals can be set using a keypad entry 0 6 5 2 4 Serial Output Setup Table 23 Serial Output Setup Options Setting Description Available Options Choose the output format for the For humidity e g Do 4 Dp EB selected parameter No Prompt Choose the separator to be used Field Separator between parameters Space Comma Tab CR CR LF Choose the terminator s for each group
65. e transmitted during the time that the balance cycle is running Optica Operator s Manual 69 Chapter 5 Programming the 4x40 Optica 5 2 8 Automatic Cleaning and Balance Function cont 8 Power down and restart the Optica 4x40 display analyzer for the settings to take effect IMPORTANT For environments or a gas sample where the mirror accumulates contamination rapidly the use of an inline filter is recommended Lower flow rates will also reduce the accumulation of contaminants 5 2 9 Buzzer and Sounds Table 28 Buzzer and Sounds Option Setting Description Available Options Sets the length apparent loudness of Enter length of keyclick sound in msec Buzzer Timing keyclick sounds 150 msec maximum 5 2 10 General Settings Table 29 General Setting Options Setting Description Available Options Dew Point Offset Enter the offset value for the Dew Point Enter the value by which the Dew Point parameter parameter will be offset Dew Point Filter Enter the filter value for the Dew Point Enter the number of readings to be parameter averaged to create filtered Dew Point Temperature Offset Enter the offset value for the Enter the value by which the Temperature parameter Temperature parameter will be offset Temperature Filter Enter the filter value for the Temperature Enter the number of readings to be parameter averaged to create filtered Temp Pressure Offset Enter the offset value for the Pressure Enter the
66. eae 103 Buzzer dnd Sounds eee ed 70 Communication Parameters ooo oo 64 Configuration with Ethernet 114 Data Fields 24 pres pat PORE ed 67 D finition seise eo Sone de Sareea an leue reis 101 Display SeiSelico 562173222 eet aes 30 Factory Calibrati0MS o ooooooooo o qa General Settings la Eas 70 COBSTAUIDI es ed a dta os tu Ed 30 Pressure Inputs 43a vere Deuce eR Rx E Ya had 67 Programmable Functions o ooooo o 64 Programming s i o Gh tS A Coa matus 61 Serial Output Setup eme dace he En ne 65 Serial DUIDUIS sic rose tec ce Ve eae 65 Setting Time and Date 22d pois 71 Special Optio 1x0 za pad 4 71 User Default SettingS oo o 71 User Equations 2356 radios a 71 Optica Models Comparison ooooooo o 99 Outer Band Alarm a ED e 19 AA ance oid an s ub oa afe BE 3 Optica Operator s Manual Index P PACER Cycle ud bet esa PE Ie A y DG FAO as A dct 101 Parameter Definition oscoiorr drid 101 Particulate Contaminants ooooooo o 39 POffOHDAHCO bat die A TRA 87 Pressure o T P PEDI 40 Manually Entering vr ERES 32 MESAS elisa E EAM sd 32 A A ae ARES 32 NI 92 Pressure Input 4x40 CDEC As e setae east 67 VGA Optica Se AEE Ae A ae ee de hes 47 Process Pressure se co ee Rub ti 32 Definition tos sida as Sees Eu ERIS 101 Measuring siea os Sekt Pada cee S s eda 32 Programming 4x40 OPA AA A quoa 61 Network Based 1 00 44 04044 00 02
67. ecifications When ordered as a complete hygrometer system with a chilled mirror sensor and cable it is verified at a number of points against a dew point system that has been certified by the U S National Institute of Standards and Technology NIST A Certificate of Compliance is supplied with the unit to indicate traceability 7 4 Troubleshooting 7 4 1 The Display Doesn t Light Up Check the POWER switch on the rear panel Make sure it s ON Check the line cord Make sure both ends are plugged in and that it is plugged into a proper source of AC voltage Check the power supply Make sure it is connected and has the proper output voltage Am Udemm Check the fuse Make sure the proper fuse size is installed Make sure the fuse is not open 7 4 Service Appears on the STATUS Display Line The text Service displayed on the STATUS line means service is required The most frequent problem requiring service is that the mirror surface is contaminated and should be cleaned Clean and balance the sensor mirror refer to Minor Maintenance of Sensor Optics on page 77 Next run the instrument through a PACER cycle If at the end of the cycle the Service status appears again repeat the cleaning and balancing procedure or contact the factory 84 Optica Operator s Manual Chapter 7 Maintenance 7 4 5 Incorrect Dew Point Display If the dew frost point reads incorrectly first check the standard preventive maintenance items
68. ed Dew Point Filter Enter the value by which the Temperature Enter offset value for Temperature parameter in C Temperature parameter will be offset Offset Enter number of readings to be temperale Enter filter value for Temperature parameter averaged to create filtered Temperature Filter Enter value by which Pressure Pressure Ent ae ee teri nter offset value for Pressure parameter in psia parameter will be offset Offset Enter number of readings to be Pressure Enter filter value for Pressure parameter averaged to create filtered Pressure Filter 4 6 2 Special Table 15 Special Option Function _ The molecular weight of the gas being analyzed Mol Wt Gas Default value is molecular weight of dry air 28 9645 Enter a number Available Options 4 6 3 User Equation Table 16 User Equation Options Function Available Options 1 2 3 Enter an alphanumeric name Using the keypad enter the alphanumeric codes for the equation elements shown in Table 5 on page 45 Selection Select which equation to enter or edit Label Enter the test label for the selected equation Enter the user equation see User Equations on page 44 Equation 56 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 6 4 Communication Parameters Table 17 Communication Parameter Options Function Available Options All Data is sent continuously Query Data is sent when Mode
69. elp gt lt OpticaAPI gt GetAlarmData lt OpticaAPI gt lt OpticaA PI gt GetAlarmTypes lt OpticaAPI gt lt OpticaA PI gt GetAllIGraphingData lt OpticaA PI gt lt OpticaA PI gt GetAllLabels lt OpticaAPI gt lt OpticaA PI gt GetAnalogOutData lt OpticaAPI gt lt OpticaAPI gt GetAutoBalanceTypes lt OpticaA PI gt lt OpticaA PI gt GetChannelInfo lt OpticaA PI gt lt OpticaA PI gt GetCurrentData lt OpticaAPI gt lt OpticaA PI gt GetDataFields lt OpticaA PI gt lt OpticaA PI gt GetDataLogSettings lt OpticaAPI gt lt OpticaAPI gt GetHTPLabels lt OpticaA PI lt OpticaAPI gt GetHTPParam lt OpticaAPI gt lt OpticaAPI gt GetPressureData lt OpticaAPI gt lt OpticaA PI gt GetOpticaInfo lt OpticaAPI gt lt OpticaA PI gt GetSerialCommData lt OpticaAPI gt lt OpticaA PI gt GetSerialData lt OpticaAPI gt lt OpticaA PI gt GetSupportedBaudRate lt OpticaAPI gt lt OpticaA PI gt GetSupportedDataBits lt OpticaAPI gt lt OpticaA PI gt GetSupportedSerialDataFormat lt OpticaAPI gt lt OpticaA PI gt GetSupportedDataLogDataFormat lt OpticaAPI gt lt OpticaA PI gt GetUserDefinedEquations lt OpticaAPI gt lt OpticaA PI gt UpdateGraphingData lt OpticaA PI gt lt help gt Set functions are not accessible with GET lt help gt lt OpticaA PI gt SetAlarmData lt OpticaA PI gt lt OpticaAPI gt SetAlarmTypes lt OpticaAPI gt lt OpticaA PI gt SetAnalogOutData lt OpticaAPI gt 106 Optica Operator s Manual Appendix G Comm
70. enchtop The Optica benchtop dimensions are shown in Figure 5 below Two feet on the bottom of the case can be unfolded to raise up the front for easier viewing if desired inches mm add 75 for feet Figure 5 Optica Benchtop Dimensions Optica Operator s Manual 9 Chapter 2 Installation 2 2 2 Using the Rack Mounting Option There is an optional kit for mounting the benchtop unit in a standard 19 inch rack see Figure 6 below Figure 7 on page 11 and Figure 8 on page 12 The two brackets are attached to the front panel using four No 8 screws The Optica is mounted to the brackets using the eight mounting holes located just in front of and behind the unit s feet Figure 6 Optica Rack Mount Adapter 10 Optica Operator s Manual Chapter 2 Installation s1ejeuur u seuoui ui aye suoisueuuiq 26 9 ov SZ SL E 8 0 eve es el PRU 9621 LOZ ozs cz 969 pzz p E Wt Y seogdp 281 ESZI 8 Z 0 H3 221 oso see E ZE lb ELE co vl 999 ez 9 z8v o0 6L Front Panel Mount Adapter ica Rack Opt 7 igure F 11 ez i 900 osi 650 Optica Operator s Manual Chapter 2 Installation sia au 1uu seuoui ui Be suoisueuug SJON
71. ew Point With or Without a Pressure Sensor In Scenario 2 the dew point measurement requires both the sensor pressure and the process pressure to be known Sensor pressure can be entered as a default value or measured as above and the process pressure must be entered in the Process Pressure field Example using standard atmospheric conditions at 25 C P1 500 psia P2 14 7 psia As measured by the GEI chilled mirror dew point sensor Tdew2 40 C P2 e2 0 1283 mbar Per Dalton s Law of Partial Pressure el P2 P1 x e2 500 14 7 x 0 1283 4 36 mbar Using standard vapor pressure equations the actual pressurized dew point is calculated by the Optica to be Tdewl 4 022 C Optica Operator s Manual 35 Chapter 3 Operation 3 7 Status Line Indications The status line at the bottom of the display shows whether the unit is ready for normal operation or is still in its start up phase or needs service The following is a complete list of status indications Table 2 Status Indications E Meamimg Initializing The unit is initializing The unit is performing a PACER balance to clear Balance the mirror Acquiring The unit is acquiring stable mirror temperature The sensor optics require service cleaning or Service adjustment The unit is actively controlling the mirror Control Es temperature at a stable dew point Alarm 1 Alarm 1 has activated Alarm 2 Alarm 2 has activated Heat
72. ew point temperatures If a recirculating chiller is used it should have a capacity of at least 300 watts at the coolant temperature Switch the internal fan ON if air cooling is used leave it OFF for liquid cooling Install the gas sampling lines according to the instructions listed in the section Sampling Lines on page 21 Figure 21 Model 1311DR Sensor Optica Operator s Manual 25 Chapter 2 Installation 2 6 5 Model 1311XR Sensor The 1311XR is a stainless steel water cooled five stage sensor see Figure 22 below that can measure frost points as low as 80 C The sample gas flow rate should be between 1 and 5 f h The maximum permissible coolant temperature is 50 C the minimum is 10 C A minimum coolant flow rate of 0 1 gallons per minute must be maintained for most dew point measurements If the fourth stage power supply control is set below 65 C the minimum coolant flow rate is 0 25 gal min The coolant temperature affects the maximum dew frost point depression For frost points of 80 C coolant temperature should be below 20 C Figure 22 Model 1311XR Sensor 2 6 5a Electrical Connections All the electrical connectors on the Model 1311 XR dew frost point sensor are unique The cables supplied with the sensor can only interconnect the system in one way Connect the cables as follows 1 Plug the instrument into a 115 230 VAC power outlet 2 Connect the 37 pin round black connector on the back of the i
73. g range In AUTO mode the controller senses the current supplied by the Optica to the top two stages of the thermoelectric coolers The controller switches on the fourth stage power supply as required to maintain the mirror temperature at the dew frost point The AUTO setting is recommended for most applications If the frost point is known to be below 55 C the switch can be set to this position to Below 55 C provide slightly faster response than the AUTO setting However depression is limited at this setting If frost points approaching 80 C are to be measured use the AUTO setting 65 C to 10 C If the dew frost point is known to be between 65 C and 10 C the switch can be set to this position to reduce overshoot and settling time Above 25 C If the dew frost point is known to be above 25 C the switch can be set to this position to reduce overshoot and settling time Note The third stage power indicator may blink in any setting This is normal 2 65e Fourth Stage Power Supply Control Knob The control knob on the 1311 XR s fourth stage power supply sets the power consumption limit and the coolant requirement when measuring dew frost points using the AUTO or BELOW 55 C settings Set this knob to the lowest anticipated dew frost point If the control is set lower than necessary the system dissipates excess power and requires additional cooling to remove the extra heat generated If the setting is too high the
74. gramming qus uiua wx S pue ARS en 41 Programming Keys 0 iio a Bea RR 42 Query Mode ForMat oooooooooo o 57 Restoring Defaults nonan nananana ia 59 Serial Output Data oonan anaana 58 Setting Time and Date o ooooooooo o 59 Special Options ida date e e 56 Units of Measures eii taifas 44 User Equations sitiar hala da 44 56 VGA Definition 0 0 0 0 0000000000000 101 W Wall Mount Installation oros 14 Specifications cn 5 0 24 soa e Sed a 89 Wiring Input Power 24 sd oue x pL 16 Wiring Outputs 2 5 sod woe Phe a ds Bs 16 Warranty T TID TI DIT 121 Water Soluble Contaminants o o 39 Index Wiring Additional Voltage OutputS 18 Alarm Outputs o dd Peu UE 18 Analog Outputs 5 1545 ee VS EAM was ees 17 Model 1311XR Sensor o o ooooooooo o 26 OPUS A ace A 16 Serial OUEDUL d e A 20 AA Suede et ite ene d rua 15 Optica Operator s Manual 119 Index 120 Optica Operator s Manual Warranty Warranty Each instrument manufactured by GE Sensing is warranted to be free from defects in material and workmanship Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument at the sole discretion of GE Sensing Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Sensing determines that the equi
75. gt lt type gt 2 lt type gt lt LowerLimit gt 30 000000 lt LowerLimit gt lt UpperLimit gt 60 000000 lt UpperLimit gt lt AlarmType gt 2 lt AlarmType gt lt Enabled gt true lt Enabled gt lt UnitOffset gt 17 lt UnitOffset gt lt type gt 17 lt type gt lt LowerLimit gt 18 000000 lt LowerLimit gt lt UpperLimit gt 26 000000 lt UpperLimit gt lt retval gt GEIAPI_SUCCESS lt retval gt OpticaAPIReturn Optica Operator s Manual 107 Appendix G Communicating with the OPTICA Using Ethernet G 2 2 Retrieving the Alarm Settings cont The Optica supports two alarm set points The above response shows the settings for alarm 1 and alarm 2 in that order Note that the index is referenced from 0 not 1 Alarm 1 parameters are described below Alarm 1 Settings Alarm type 2 SetPoint InnerBand Outerband Control Service Pacer 2 here indicates Outerband Enabled True Alarm 1 is enabled Unit Offset 2 RH See the Optica manual or use the GetHTPLabels for the list of available units and the order Type 2 ignore this value LowerLimit 18 000000 the Lower limit is 18 RH UpperLimit 26 000000 The Upper limit is 26 RH G 2 3 Retrieving the Alarm Types This command enables the user to retrieve different alarm types that are supported by the Optica and the order in which they are referenced Command http 3 112 160 36 28005 OpticaAPI xml GetAlarmTypes Function Name GetA
76. he VGA Optica can be operated and programmed remotely over a network Networked operation is very similar to operation using the front panel For programming from a network see Chapter 6 A typical network screen is shown in Figure 25 below Tdew C 27 9 Twet F 39 9 Grains SCF 51 9 Display Figure 25 Typical Network Screen Optica Operator s Manual 31 Chapter 3 Operation 3 6 Process Pressure The Optica provides several ways of measuring or specifying sample gas pressure needed for pressurized humidity measurements You can actively measure the pressure at the dew point sensor or manually enter the pressure if it is known and stable or e sample off a high pressure gas sample for measurement at a lower pressure usually atmospheric and let the Optica calculate dew point at the process pressure For example a sensor with a maximum pressure rating of 300 psi cannot be subjected to a process pressure of 500 psi A sampling system can be arranged to allow the measurement to be made at atmospheric pressure The Optica can then calculate and display the dew point at the process pressure see Scenario 2 on page 34 3 6 1 Actively Measuring Process Pressure Use when the process pressure is within the specifications of the dew point sensor and can be measured directly In the Pressure Input menu set the Pressure Input to V or as appropriate for the pressure sensor Set the Process Pressur
77. ica Connector 25 Pin Device 9 Pin Device Pin Connection Pin Connection Pin Connection The baud rate format of the data number of stop bits number of data bits and parity can all be programmed using the menus 20 Optica Operator s Manual Chapter 2 Installation 2 5 Sensor Information GE Measurement amp Control produces a variety of sensors compatible with the Optica ranging from one to five stages of thermoelectric cooling A comparison chart listing specifications of each sensor is given in Appendix D The following sections provide information on installing the following GE dew point sensors e Model 1111H Single stage sensor Model 1211H Two stage sensor for high pressure and temp e Model D 2 Two stage sensor e Model SIM 12H Two stage heated sensor e Model 1311DR Four stage heated sensor e Model 1311XR Five stage water cooled sensor When selecting a location for installing a sensor consider the following criteria Locate the sensor as close as is practical to the source of the gas to be measured to keep the sampling lines as short as possible This minimizes the system response time and reduces the error rate at low frost points due to sample line outgassing Choose a sensor location that provides access to the dewpoint sample cavity cover to facilitate periodic mirror cleaning CAUTION Never place the sensor in a location where temperatures rise above the maximum rated tem
78. iia e 2 9 9492 89 Physical Wall Mount oooooooo o o 89 Status Line Indicati0DS ooooooooo 36 Supercooled Dew Points ooooooooo 39 System Components iiio ad had aa e ide 3 Plis cds beta o do S edd 3 T A O e DP Rd ee ER OE 84 118 Troubleshooting 2 40 ose e RR RE RES 84 Balance oiDisplay s cava feb exec RAS S 86 Service Required cusa A PA 84 Incorrect Dew Point Display 85 No Analog Output ooo ooooooooooo o 86 No Displays si tonta tas 84 No Serial Output cc eee caw da aeaaeae 86 U Units Retrieving with Ethernet 109 User Default Settings II bake eee ae 71 User Equations 4x40 Optica at Ladue A ores dad vus 71 NGA Optica td rs ieee LA 44 V Vapor Presslfteo3 ea ca pou gest Ra ee ee 92 MEeAastififig 5 iss xac eroe b Ber eR ae at 33 Optica Operator s Manual VGA Optica O ee mois 48 Analog OUtpuls 4 2224 224 Sore EE Rehd 46 Automatic Balance earlier software 103 Buzzer Sound as s aui ime td sence Tu ES NR 51 Communication Parameters oo oo o 57 Data Categories d ases ex E e en 41 Data Entry Pida ata 42 Data Fields coi ri 51 Data LOG 5 iss eens E tas E esrb a 53 Download Screen 54 General Options sap oe uere pios 56 Ment Tiros 2 58 acce Eoo dut a bd ana 46 Men Zas A mU oot 55 Network Menu pocas ser paid 22 Operation setos pesoni da ep ud laos reet od en 30 Pressure InDBE 2 023522 eS WEIMAR 47 Pro
79. iption Available Options Restore settings to factory defaults shown in Table 3 on page 37 Restore Defaults NO YES 5 2 15 Factory Calibrations Table 34 Factory Calibration Options Setting Description Available Options For factory use only Optica Operator s Manual 71 Chapter 5 Programming the 4x40 Optica no content intended for this page 72 Optica Operator s Manual Chapter 6 Network Based Programming Chapter 6 Network Based Programming 6 1 Introduction The VGA Optica can also be programmed remotely from a computer over a network using a browser program such as Internet Explorer It may be necessary to download and install the Sun Java Runtime Environment JRE obtained from the GE distribution CD or Sun s website If the Sun JRE is not installed on a machine that connects to Optica via Ethernet a web page will direct the user to Sun s website To set up the Optica s networking configuration see Chapter 4 for programming using the Optica s VGA programming method and follow the instructions listed in Network Menu on page 52 6 2 Programming Screens Detailed information on using the Optica Web interface is available via the Help buttons Programming is very similar to programming of the VGA unit described in Chapter 4 Programming the VGA Optica Of course you use the mouse to click directly on fields and control buttons instead of selecting items with the TAB key described in Chapter 4
80. it is likely that soluble material was present in sufficient quantity to cause a measurement error Optica Operator s Manual 39 Chapter 3 Operation 3 9 2d Gaseous Contaminants When a gaseous material that has a higher condensation temperature than that of water is present even in very low concentrations the unit will eventually control on that material rather than on water The system then displays the condensation temperature of the contaminant not of water Such material accumulates on the mirror only when chilled In the normal atmosphere gaseous contaminants do not have a detectable effect 3 9 2e Minimizing the Effects of Contaminants The following steps are suggested for maintaining optimum performance e Use the PACER feature to reduce the effect of contaminants on the unit s performance see The PACER Cycle on page 7 Reduce the gas flow rate to reduce the rate of accumulation of contaminants on the mirror e Clean the mirror according to the recommended optics cleaning procedure see Minor Maintenance of Sensor Optics on page 77 To determine the proper cleaning interval for a given set of conditions take a dew point reading before and after the cleaning Any appreciable shift indicates that under these conditions the mirror should be cleaned more often 3 9 3 Mirror Flooding If there is an abrupt transition from dry to moist conditions particularly when accompanied by a transition from cold to warm te
81. k AC Power Input Gland Figure 12 Wall Mount Wiring Entrance Locations Serial Port Temperature Sensor Optional Ethernet LAN Connector Gland for Dew Point Sensor I O Wiring i Gland for AC Power DEW POINT m IN OUT AC LINE Wiring 90 250 VAC 47 63 Hz 4 ASB 250V TYPET Figure 13 Wall Mount Bottom Panel viewed from under the unit Optica Operator s Manual 15 Chapter 2 Installation 2 3 2a Input Power Power wiring enters the case through a gland fitting at the lower right of the unit and connects to a screw terminal block mounted on the right side of the case Wiring of this terminal block is shown in Figure 14 below The voltage and frequency rating and tolerances as well as fusing data are listed on the bottom of the unit Figure 14 Wall Mount AC Power Wiring 2 4 Output Wiring The benchtop outputs are connected to removable terminal blocks on the rear panel Figure 9 on page 13 shows the location of the benchtop terminal blocks and Figure 15 below shows the Slot A connections The Wall Mount Optica input output terminal blocks are located inside the front door as shown in Figure 12 on page 15 Cabling is brought in through the gland on the bottom of the unit and wired to the terminal blocks shown in Figure 15 below Note Output programming is described in Chapters 4 5 and 6 ALARM 1 ALARM 2 OUT A OUT B PRESSURE Benchtop Unit Wall Mount Unit Figure
82. lance Interval min 720 Type Auto v Status Disabled y Track Hald Hold y Figure 30 Menu 1 Menu 1 allows programming of the following items 4 5 1 Analog Outputs Parameter Humidity y ints Fac e GrphMax 60 0000 Grphmin 40 0000 GrphColor Green y Decimals fi Buzzer Sound 15 Network Data Log For more information on using the analog outputs see Analog Outputs on page 17 Output Parameter Units Upper Limit Lower Limit 46 Table 6 Analog Output Options Choose which output channel is being programmed Choose which parameter will be output on the selected channel Choose the units for this parameter Set the parameter value that will produce full scale output Set the parameter value that will produce zero output Function Available Options A and or B Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen Enter a number Enter a number Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 5 2 Pressure Input For more information on using these items see Process Pressure on page 32 Table 7 Pressure Input Options Function Available Options Choose which pressure input channel is in use or V in 0 5 in 4 20 or Use input disable this input Default Gate Choose the units for the pressure input See Table 4 on page 44 for parameter chosen Upper Limit Set the pressu
83. larmTypes Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIReturn Function GetAlarmTypes gt lt NumAlarmTypes gt 6 lt NumA larmTypes gt lt AlarmType gt SetPoint lt AlarmType gt lt AlarmType gt Inner Band lt AlarmType gt lt AlarmType gt Outer Band lt AlarmType gt lt AlarmType gt Control lt AlarmType gt lt AlarmType gt Service lt AlarmType gt lt AlarmType gt Pacer lt AlarmType gt lt retval gt GEIAPI_SUCCESS lt retval gt lt OpticaA PIReturn gt This Response indicates that 6 alarm types are supported They are listed in order with the reference being 0 108 Optica Operator s Manual Appendix G Communicating with the OPTICA Using Ethernet G 2 4 Retrieving Supported Units This command enables the user to retrieve different units that are supported by the Optica and the order in which they are referenced Command http 3 112 160 36 28005 OpticaAPI xml GetAllLabels Function Name GetAlarmTypes Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone lt OpticaAPIReturn Function GetAllLabels gt lt channel gt 0 lt channel gt lt sLabels gt Tdew C lt sLabels gt lt sLabels gt Tdew F lt sLabels gt lt sLabels gt RH lt sLabels gt lt sLabels gt Twet C lt sLabels gt lt sLabels gt Twet F lt sLabels gt lt sLabels gt ppmv lt sLabels gt lt sLabels gt ppmw lt sLabels gt lt sLabels gt Grains Ib l
84. llations as the temperature stabilizes 3 9 26 Particulate Contaminants Particulate matter that is insoluble in water may accumulate on the mirror surface but does not affect the instrument accuracy until the mirror reflectance is reduced substantially In many cases particulates improve instrument response by providing condensation sites 3 9 2c Water Soluble Contaminants Contaminants which readily dissolve in water such as naturally occurring salts are detrimental to accurate vapor concentration measurement by any condensation method These materials readily go into solution with the water condensate on the mirror surface and then reduce the vapor pressure in accordance with Raoult s Law As the concentration increases with time the saturation vapor pressure of the liquid solution decreases The unit responds to this lower vapor pressure by elevating the mirror temperature in order to maintain a vapor pressure that is in equilibrium with the partial pressure of atmospheric water vapor The displayed dew point therefore drifts upward above the true dew point Because the measurement error increases gradually it often goes undetected To determine whether dissolved contaminants are affecting dew point measurement perform the following steps 1 Note the indicated dew point 2 Clean the mirror 3 Balance the detector by initiating a PACER cycle 4 Measure the dew point again If the new reading is lower than the first reading
85. lt fAllData gt 0 000000 lt fAllData gt lt fAllData gt 0 000000 lt fAllData gt lt iBarGraphMin gt 0 lt iBarGraphMin gt lt iBarGraphMax gt 10 lt iBarGraphMax gt lt iBarGraph Value gt 6 lt iBarGraph Value gt lt bHeatState gt false lt bHeatState gt lt bCoolState gt false lt bCoolState gt lt bPacerState gt false lt bPacerState gt lt sStatus gt Control Alarm1 lt sStatus gt lt retval gt GEIAPI_SUCCESS lt retval gt lt OpticaAPIReturn gt bHeatState bCoolState and bPacerState indicate whether the unit is in MaxHeat MaxCool or Pacer respectively Optica Operator s Manual 113 Appendix G Communicating with the OPTICA Using Ethernet G 2 8 4X40 Optica Configuration Using an RS 232 communication link the user can set the network settings To see the set of supported commands type Help lt gt 1 SSetIPAddress lt IP ADDRESS gt lt gt i e SetIPAddress 3 112 60 36 2 SSetIPSource lt STATIC gt lt gt Assuming STATIC IP 3 SaveNetworkSettings lt gt 4 GetNetworkSettings lt gt Displays the current network settings It takes time to execute the SaveNetworkSettings command Wait until the display updates to determine when to reset the unit In order for the settings to take effect power to the unit must be cycled 114 Optica Operator s Manual A Accessory Specifications oooooo o 90 Alarm Outputs Inner Band Alarm iia Eel E hee es 19 Outer Band Alanis 74 oevemRe ii 19 Se
86. meter However some gas constituents such as sulfur dioxide SO2 may react with the copper and eventually pit the surface or form a copper sulfate coating The reflective surface may be gradually abraded by sharp dirt particles in the gas being measured The mirror surface may be accidentally scratched or gouged during use or cleaning If the sensor mirror has reacted with a corrosive material in the gas sample such as an acid or sulfur compound it should be replaced with a solid platinum mirror to remove any possibility of copper corrosion In extreme cases a solid platinum mirror can make possible a successful application of chilled mirror technology For example measurements in tobacco factories and malting houses have drastically improved after this change since both locations have sample gas constituents that attack copper 82 Optica Operator s Manual Chapter 7 Maintenance 7 2 1 Replacing the Sensor Mirror Required equipment torque driver set to 20 30 inch ounces of torque GE type TW 1 is recommended The kit supplied by the factory contains the replacement mirror a container of white thermal compound for proper heat transfer and in some models a mylar washer that is to be placed under the mirror 1 2 3 4 5 Deactivate the sensor cooler using one of the following actions Turn the sensor power off or e Place the sensor switch to heat or e Disconnect the sensor cable Turn off the sample g
87. mperature and pressure than the D2 sensor The Model 1211H can be used as a benchtop sensor mounted to a heat sink Features include a field replaceable mirror optics and cooler assembly See the Chilled Mirror Sensor Comparison Chart in Appendix D 2 6 4 Model 1311DR Sensor The 1311DR is a stainless steel liquid cooled four stage sensor suitable for measuring dew points between 75 C and 25 C Mount the 1311DR sensor so that the air inlet and exhaust openings are free from obstruction see Figure 21 below If the sensor is liquid cooled vertical wall mounting is recommended observing the UP arrow on the case This ensures that condensation forming on cold portions of the 1311DR will drain from the enclosure At room temperatures 25 C with air cooling dew points from 65 C to 25 C can be measured When operating it without liquid cooling switch on the built in fan For lower frost point measurements a chilled water coolant loop can be used for cooling Make sure the fan switch is off when using liquid cooling Sample flow rates from 0 5 to 5 standard cubic feet per hour 0 25 to 2 5 liters per minute should be used CAUTION _ If it can be avoided do not operate the sensor continuously at or near full depression Doing so may decrease the life of the thermoelectric heat pump Liquid cooling is required for measuring frost points below 65 C at 25 C ambient and may be used to create faster response at higher d
88. mperatures the mirror may accumulate an overload of moisture It then may take several minutes before the sensor dries out and valid readings can be obtained The drying process can be accelerated by heating the sensor 3 9 4 Sample Line Maintenance Contaminated sample lines slow the unit s response time and can cause erroneous readings usually on the high side Clean the sample lines as often as necessary To determine the required cleaning frequency take dew point readings before and after cleaning the lines sensor cavity and mirror If the two readings differ appreciably the sampling lines should be cleaned more often To reduce the rate of contamination reduce flow and or install a filter upstream 3 9 5 Pressure Effects If the pressure of the gas is increased or reduced from atmospheric pressure but the mixing ratio moisture content stays constant the dew point is correspondingly increased or decreased The Optica displays the dew frost point at the pressure to which the sensor chamber is exposed The sensor location and hookup arrangement can influence the pressure When the pressure at the sensor is different from the process pressure the Optica can perform a conversion from the measured pressure to the desired process pressure see Process Pressure on page 32 for details Alternatively the dew point change due to pressure change can be calculated by using Dalton s Law and the Smithsonian Tables or a proper nomograph Appendi
89. n GetNetworkSettings lt gt Displays the network settings r n SaveNetworkSettings lt gt Write Network settings to the registry r n DeleteNetworkSettings lt gt Deletes registry entries removes FDF amp CRC File r n SaveAllSettings lt gt Write all settings to non volatile memory r n Optica Operator s Manual 105 Appendix G Communicating with the OPTICA Using Ethernet G 2 Computer Communication The Optica communicates over port 28005 The general format for accessing the Optica is lt IP address gt 28005 Command The command set of the Optica is broken into two categories Those used to set parameters and those used to retrieve parameters from the Optica Commands that are used to retrieve information from the Optica are preceded with the prefix Get and those that are used to set parameters at the Optica are preceded with the prefix Set Only the commands that enable the user to retrieve information from the Optica are detailed in this document The examples below assume that a web browser is being used G 2 1 Determining the Available Commands The available commands can be determined by entering the line below in the address line of the browser This command returns a list of API commands supported by the Optica http 3 112 160 36 28005 OpticaAPI xml lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIInfo gt lt help gt OpticaAPI xml FunctionName channel lt h
90. n Note Ifthe mirror is severely scratch or pitted you may not be able to balance it It may be replaced in the field as discussed on page 82 For industrial applications GE recommends the solid platinum mirror 3 Optica Web Applet Microsoft Internet Explorer provided by GE Infrastructure Balance Tdew C 73 07 ca 4 Indicator RH 100 00 Tmp C 2247 kPa 101 0 Status Indicator Help Figure 44 Balance and Status Indicator on Optica Display Optica Operator s Manual 77 Chapter 7 Maintenance 7 1 2 Procedure for Cleaning and Balancing the Sensor Mirror When necessary use the procedure below to clean and balance the sensor mirror To clean the mirror you will require the MSK Kit which includes essential supplies Cotton swabs Screwdriver or hex driver for some sensors Cleaning solution From the Optica analyzer press the soft key next to the HEAT button or from the Optica Java applet running on your PC move your mouse pointer over the HEAT button and click The button will turn red as shown in Figure 7 1 on the previous page Allow the dew point temperature mirror temperature to attain the maximum value To clean the mirror a b c d e Remove the cap or open the cover of the chilled mirror sensor Put one drop of cleaning solution on a cotton swab Gently rub the cotton swab on the mirror in a circular motion spiral outwards to clea
91. n the mirror Use a dry swab to dry and buff the mirror The mirror should be bright and shiny Discard the used swabs IMPORTANT fthe contamination is severe then solvents such as alcohol acetone or hexane may be used followed by a rinse of the cleaning solution then distilled water Be sure to dry and buff the mirror with a dry swab 4 Observe the balance indicator It should have only one bar segment illuminated Figure 45 below shows the possible variations for the indicator while the mirror is heated 78 a underbalanced b balanced c overbalanced Figure 45 Coarse Adjust Balance Indicator While Mirror is Heated Optica Operator s Manual Chapter 7 Maintenance 7 1 2 Procedure for Cleaning and Balancing the Sensor Mirror cont 5 If more than one bar segment or no bars are illuminated use the screw or hex driver to adjust the optical bias screw shown in Figure 46 below on the sensor until only one bar is illuminated You are performing a coarse balance adjustment Sensor Balance adjustment screw Model 1111H Model 1311H Figure 46 Balance Adjustment Screw Locations IMPORTANT This adjustment is made while the cap or cover is on the 1111H 4 D2 sensors For the 1211H SIM 12H 1311 DR amp 1311 XR the adjustment is made with the cap removed In these cases the adjustment should not be made in sunlight bright incandescent or infrared light It might be useful to shade the
92. neral Settings xc ooo ven OR eM IDE DEVON Pea ay 3 70 5 2 User Equations seti RERR EE inti te E LER RN ee Ne IE eI ate GRO 7 5 2 12 Set Time and Date ie eS e eter eee RR ed espere n erstens ahead Sion eee ha 7 S23 Specials coe o cet test Ere b ET P CO I edo va on ale plate euites n vacio s 7 5 2 14 User Default Sein gs 0 iet A AS EE PU c du e UE 7 5 2 15 Factory Calibrations Li A VERON PADRE HER RN E id 7 Chapter 6 Network Based Programming Gel Introduction eee eee pn x nee pde quee Dauid Dodo ee dre ende dt te poetis aie ia 73 6 2 Programming SCreens ia et sere eau aspe eg idR AR Gon pibe ele phe Pd e e i Pp D D 73 vi Optica Operator s Manual Contents Chapter 7 Maintenance 7 1 7 2 7 3 7 4 A l A 2 A 3 AA A S A 6 B 1 B 2 B 3 C 1 D 1 D 2 Minor Maintenance of Sensor Optics nunana annaas eee etn een eee n ene ees 77 7 1 1 Cleaning and Balancing the Sensor Mirror 0 2 0 0 0 cece cece e 77 7 1 2 Procedure for Cleaning and Balancing the Sensor Mirror 0 00 eese 78 Field Replacement of Sensor Mirrors 0 00 eee ete e ene e nen ees 82 TZ Replacing the Sensor Matron ici A gag tea Rw MEME EA whe ae Bw CE gr cod d 83 Testand Calibration oss to dat one Aa ed e sa ds tea lil Ae 84 Troubleshootitig us osse wade ew REN aides eal oda E ORE pds ideale bos 84 7 4 1 The Display Doesn t Light UP seeren enian e aa eee re 84 7 4 2 Service Appears on the STATUS Display Line
93. nication Mode All Baud rate 9600 Parity none Data bits 8 Stop bits 1 Parameters Flow control none Humidity Units Tdew C Format DP Separator CR LF Terminator CR LF Interval 1 second Time Stamp Enabled Show Status Enabled Temperature Units Tmp C Format DP Separator CR LF Terminator CR LF Interval 1 second Time Stamp Enabled Show Status Enabled Pressure Units psia Format DP Separator CR LF Terminator CR LF Interval 1 second Time Stamp Enabled Show Status Enabled Humidity Units Tdew C Humidity Units RH Temperature Units Tmp C Serial Outputs Selected Outputs Status Disabled Interval 1 second Separator comma Terminator CR LF Data L A ps Parameters humidity Units Tdew C Optica Operator s Manual 37 Chapter 3 Operation 3 8 Sensor Balancing During normal operation the sensor mirror surface may become partially obscured with salts or other contaminants from the sample gas The balance indicator displayed on the screen shows whether the system is operating near the center of its normal range or has been forced away from the center by mirror contamination In general it is recommended to start with an AUTO balance cycle provided relatively clean gases are being used If the Service status indicator is displayed after an AUTO cycle the mirror is likely still dirty and may require use ofa PACER cycle described in detail on pag
94. ns e abenchtop model with an optional rack mount adapter available e awall mount unit housed in a NEMA 4 enclosure suitable for industrial environments See Chapter 2 Installation for details on how to mount the Optica 1 2 1 Front Panel The Optica s front panel is shown in Figure 1 below The panel includes a display an alphanumeric keypad for data entry ENTER and TAB keys and four softkeys to the right of the display screen Two display options are available a high resolution full color liquid crystal display LCD with data graphing and on screen programming capability referred to as the VGA unit See Figure 1 below e a4 line by 40 character alphanumeric display referred to as the 4x40 unit VGA Display Softkeys Alphanumeric keypad Power On Off switch Figure 1 Optica Benchtop Version with VGA Display 2 Optica Operator s Manual Chapter 1 Features and Capabilities 1 2 2 Input Output Capability Available inputs and outputs include the following e 4 wire Resistance Temperature Detector RTD input e 4 20 mA and 0 5 VDC Pressure Sensor inputs two simultaneous analog outputs each with 4 20 mA and 0 5 VDC capability two independent alarm relays Form C 5 Amp serial communications port Ethernet 10BaseT on VGA Optica only The Optica uses the GE Measurement amp Control patented Programmable Automatic Contaminant Error Reduction PACER system for automated
95. nstrument to the 19 pin military style connector on the back ofthe 1311 XR sensor 3 Connect the 17 pin military style connector on the back ofthe 1311 XR sensor to the 24 pin round connector on the back of the heat pump controller module 4 Connect the 9 pin round connector on the back of the heat pump controller module to the 8 pin rectangular connector on the back of the fourth stage heat pump power supply 5 Plug the heat pump power supply into a 115 230 VAC outlet 2 65b Coolant Connect the two 3 8 inch brass compression fittings on the back of the 1311 XR sensor to the coolant lines Do not run the instrument without sufficient coolant flow Suitable coolants include water glycol and other noncorrosive liquids The coolant can be recirculated liquid or tap water that is cooled or chilled If a recirculating chiller is used it should have a capacity of at least 600 watts at the coolant temperature 2 65c Sample Gas Fittings The 1311 XR sensor has 1 4 inch stainless steel compression fittings for sample gas inlet and outlet at the back of the sensor chassis 26 Optica Operator s Manual Chapter 2 Installation 2 6 5d Heat Pump Controller Settings The 1311XR s heat pump controller module has the following settings Table 1 Model 1311XR Heat Pump Controller Settings Setting When set to AUTO the system operates fully automatically controlling the heat pump in response to any dew frost point within its operatin
96. number Enter a number Enabled Disabled Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen Set Point Inner Band Outer Band Control Service PACER Enter a number Enter a number The Upper and Lower limits set the alarm thresholds Alarm types are listed below see details on page 18 SetPoint Alarm activates when parameter exceeds upper limit deactivates when parameter is less than lower limit Inner Band Alarm activates when parameter is between upper and lower limits Outer band Alarm activates when parameter is outside upper and lower limits Control Alarm activates when the Optica is actively controlling mirror temperature e Service Alarm activates when the Service indicator is activated e PACER Alarm activates when the PACER balance is active 66 Optica Operator s Manual Chapter 5 Programming the 4x40 Optica 5 2 6 Data Fields Setting Line 1 Parameter Line 1 Units Line 1 Decimals Line 2 Parameter Line 2 Units Line 2 Decimals Line 3 Parameter Line 3 Units Line 3 Decimals 5 2 7 Pressure Input Setting Analog Input Input Units Input Upper Input Lower Input Default Process Pressure Default Set whether the process pressure is active enabled see page 32 Process Pressure Optica Operator s Manual Table 25 Data Field Options Description Available Options Choose which parameter will be Humidi
97. o acquire a dew or frost layer on the mirror the depression capability of a sensor must extend below its measurement range The minimum required differential between depression range and measurement range is 5 C 9 F at nominal dew frost points and increases to 10 C to 12 C 18 F to 22 F at very low frost points Measurement range is normally specified at 25 C 77 F ambient temperature in air at atmospheric pressure For sensor body temperatures other than 25 C 77 F measurement range can be estimated by first estimating depression capability and then decreasing this range according to the minimum required differential For most gases other than air the effect on measurement range is negligible However gases such as hydrogen or helium which are more thermally conductive than air will result in a decrease of several degrees in the measurement range Measurement range will decrease as gas pressure is increased because the increased density and therefore increased thermal conductivity of the gas results in an increased heat load For air or nitrogen each 50 psi 3 bar increase above atmospheric pressure will result in a loss of approximately 2 C 4 F of depression capability Conversely operating under vacuum may result in a small increase Other factors influencing sensor selection include temperature and pressure ratings and whether anticipated dew points will be higher than ambient temperature 98 Optica Operator s Manual
98. or can manually heat or cool the sensor or initiate a PACER balance cycle Optica Operator s Manual 29 Chapter 3 Operation 3 3 Operating the VGA Optica The parameters chosen during programming are displayed numerically in the top half of the screen and graphically at the bottom see Figure 23 below To program the unit see Chapter 4 A balance indicator is shown as a vertical bar on the right side of the screen It shows the state of the feedback control loop controlling the mirror temperature When the system reaches steady state the Control status indicator is displayed the balance indicator should be near the center of its range If the balance indicator is near the top or bottom of its range the dew point sensor may need to have its optics signal level adjusted see Minor Maintenance of Sensor Optics on page 77 Tdew C 11 5 RH 7 7 Tmp C 23 8 60 0100 M00 04 Figure 23 Typical VGA Display Screen 3 4 Operating the 4x40 Optica The parameters chosen during programming are displayed numerically on the top three lines of the display For programming see Chapter 5 A typical 4x40 display screen is shown below The system status is shown in the lower left and the balance indicator is shown in the lower right Tdew C 8 47996 RH 10 3 Tmp C 25 355 Control Figure 24 Typical 4x40 Display Screen 30 Optica Operator s Manual Chapter 3 Operation 3 5 Network Operation T
99. or many conventional applications Note The unit is shipped pre programmed to meet typical requirements The factory default settings are listed in Table 3 on page 37 Complete programming instructions are given in Chapters 4 5 and 6 Maintenance Manually testing the unit s cooling capacity cleaning the mirror and other operations that might be required on a regular basis or when a problem is suspected depending on the application Details are given in Chapter 7 Maintenance 3 2 Normal Operation Normal operation of the Optica is very simple To turn the unit on check that the main power switch on the rear of the benchtop unit is set to ON then press the right hand side of the power switch located at the lower left corner on the front of the unit The Optica begins its power up sequence which lasts about a minute The unit s software version is displayed on the initial screen The status line displays Initializing Next the Optica performs a PACER balance The PACER balance typically requires five to fifteen minutes depending on the sensor chosen and the humidity of the sample gas during the balance cycle The status line displays Balance Acquiring Once the balance cycle is completed and the unit reaches steady state Control is displayed in the status bar at the bottom of the screen The sensor can be controlled using the softkeys to the right of the display shown on the screen in Figure 23 on page 30 The operat
100. ored in a file named with the file s creation time and date If logging is in progress at midnight a new file is automatically started at that time To view or output the logged data select the Download control button and press ENTER The Optica will display the Download screen described below 4 5 80 Download Screen The Download Screen is accessed by pressing Download on the Datalog screen It contains the following elements e alist of any saved files containing logged data upper left e an area for displaying logged data center e View button displays the contents of the selected file name e OK button return to the previous screen e Download button send the selected file to the serial port e HELP button display help system e Up arrow button scroll the displayed data upwards e Down arrow button scroll the displayed data downwards View OK Download Help 5l Date Time Tdew C Tmp C psia 2003 03 08 00 01 33 NAN NAN 14 700 2003 03 08 00 01 35 NAN NAN 14 700 q 2003 03 08 00 02 04 NAN NAN 14 700 2003 03 08 00 02 10 NAN NAN 14 700 2003 03 08 00 02 16 NAN NAN 14 700 2003 03 08 00 02 22 NAN NAN 14 700 Sd Y 2003 03 08 00 03 07 NAN NAN 14 700 2003 03 08 00 03 14 NAN NAN 14 700 2003 03 08 00 03 21 NAN NAN 14 700 Figure 33 Download Screen 54 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 6 Menu 2 Menu 2 is shown
101. perature for the device See Appendix D for complete sensor specifications 2 5 1 Sampling Lines Keep the length of sample tubing between the source and the sensor short for quick response and highest accuracy All sampling line compression fittings provided with the sensor are for 4 inch diameter tubing unless otherwise specified at the time of order The material used for the inlet lines can have an important effect on the validity of the readings Do not use rubber hose or plastic tubing such as PVC or Tygon because of their hygroscopic nature When measuring frost points below 30 C sample gas leaving the sensor outlet should be vented through an additional line three to six feet long since backflow of ambient moisture into the sensor can take place even under positive pressure Use stainless steel tubing and fittings and ensure that all plumbing is completely free from leaks At dew frost points above 20 C tubing material is not as critical Copper PTFE polypropylene aluminum or brass tubing and fittings may be used The sampling system should allow for periodic cleaning It may be helpful to install a tee and closing valve on the inlet side to permit the sensor to be shut off while the sampling lines are flushed At very low humidities even a trace amount of contamination can alter measured frost point so cleanliness is particularly important Optica Operator s Manual 21 Chapter 2 Installation 2 5 2 Ensu
102. play indicates correctly check the analog output scaling For the VGA unit see Analog Outputs on page 46 For the 4x40 unit see Function 1 Analog Outputs on page 64 7 4 6 No Serial Output Check the serial port programming for proper settings For the VGA unit see instructions on page 58 For the 4x40 unit see instructions on page 65 86 Optica Operator s Manual Appendix A Specifications Appendix A Specifications A 1 Performance A 1 1 Accuracy complete system at 25 C 77 F A 1 1a Dew Frost Point 0 2 C 0 36 F A 1 16 Temperature optional 0 15 C 40 27 F A 1 1c Pressure optional A 1 1d 0 5 of full scale A 1 1e Relative Humidity optional Governed by accuracy of dew point and temperature sensors A 1 1f Other Humidity Parameters optional Governed by accuracy of dew point temperature and pressure sensors Sensitivity gt 0 05 C 0 09 F Repeatability 0 05 C 0 09 F Hysteresis Negligible A 1 2 Measurement Ranges A 1 2a Chilled Mirror Sensors available 1111H 1211H D 2 SIM 12H 1311DR 1311XR A 1 2b Range 80 C to 85 C 112 F to 185 F dew frost point depending on sensor used A 1 2c Temperature Sensor optional T 100E 100 C to 100 C 148 F to 212 F A 1 2d Pressure Sensors optional PT 30A 0 30 psia 0 to 2 bar PT 300A 0 to 300 psia 0 to 21 bar User supplied 4 20mA or 0 5 volt signal Recommended
103. pment was defective the warranty period is one year from delivery for electronic or mechanical failures one year from delivery for sensor shelf life If GE Sensing determines that the equipment was damaged by misuse improper installation the use of unauthorized replacement parts or operating conditions outside the guidelines specified by GE Sensing the repairs are not covered under this warranty The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory express or implied including warranties or merchantability and fitness for a particular purpose and warranties arising from course of dealing or usage or trade Return Policy If a GE Sensing instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Sensing giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory service GE Sensing will issue a RETURN AUTHORIZATION NUMBER RAN and shipping instructions for the return of the instrument to a service center will be provided 2 If GE Sensing instructs you to send your instrument to a service center it must be shipped prepaid to the authorized repair station indicated in the shipping instructions 3 Upon receipt GE Sensing will evaluate the instrument to determine the cause of the malfunction Then one of the following course
104. r s Manual 63 Chapter 5 Programming the 4x40 Optica 5 2 Programmable Functions 5 2 1 Analog Outputs Setting Output A Parameter Output A Units Output A Upper Output A Lower Output B Parameter Output B Units Output B Upper Output B Lower Table 20 Analog Output Options Description Choose which parameter will be output on analog channel A Choose the units for scaling this parameter Set the parameter value that will produce full scale output Set the parameter value that will produce zero output Choose which parameter will be output on analog channel A Choose the units for scaling this parameter Set the parameter value that will produce full scale output Set the parameter value that will produce zero output 5 2 2 Communication Parameters Setting Serial Mode Baud Parity Number of Data Bits Number of Stop Bits Serial Flow Control 64 Available Options Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen Enter a number Enter a number Humidity Temperature Pressure or User Equation See Table 4 on page 44 for the parameter chosen Enter a number Enter a number Table 21 Communication Parameter Options Description Set whether data is transmitted continuously or on demand Set the baud rate to be compatible with the receiving device Set the parity as required by the receiving device Set th
105. r AOR tien ER AMA REP 90 a a ah o noc sed itachi ai 90 AS PTOA ia A A A he Gabe itis Gaye Release Aim Gaga E AS 90 European Compliance reei ette drid a ity Yasin ai eie ee bti ees 90 Introduction usen esee mere eer me dc LEM aar e eee i NO 9 Vapor Pressure a siege perse RC NER EE ES 92 Humidity 3 eoe A No ee ert cc cute wad tete tod 92 Wiring to Personal Computers simane See he A e ede DA tod e RR RR ae a 95 Introduction sorag e hr rs n tret e ale P Rp V SER o per e bone reti 97 Depression semua PI M 97 Optica Operator s Manual vii Contents D 3 D 4 Fl F 2 Gl G2 viii Measurement Rania A he A ne RC RN ed e DDR os RE DR In Lg 98 Comparing Optica Models ossa esed m ARIES pe ER ed dod e ask ew SNAG dab s 99 Programming Automatic Balance fora VGA Optica 00 ccc ee 103 Programming Automatic Balance for a 4x40 Optica 0 0 ect eee 103 Direct Communication T anie a e a ni eem e e hr 105 Computer Communication 0 eee rrr 106 G2 1 Determining the Available CommMandS ooooooooororr een 106 G2 2 Retrieving the Alarm SettidgS o ooooooorrrrr eee as 107 G2 3 Retrieving the Alarm Types o ooooooooorrr eh as 108 G2 4 Retrieving Supported Units risien e e i a n a ee 109 G 2 5 Retrieving Labels and Functions nunana ccc rearea 110 G 2 6 Retrieving Analog Output Information 0 0 0 0 000 ccc teen e ene nen 112 G2 7 Retrieving the Measured and Calculated Values 0 0 ect es 112
106. re that corresponds to full scale input Enter a number Set the pressure that corresponds to zero volts or Lower Limit 4 mA input Enter a number Pressure value to be used if the measured input is disabled Process Enter a process pressure when it is different from the pressure at the dew point sensor see page 32 Default Enter a number Status Set whether the process pressure is active enabled Enable Disable Pressure Enter the process pressure if this feature is enabled Enter a number Optica Operator s Manual 47 Chapter 4 Programming the VGA Optica 4 5 3 Alarms For more information on using the alarms see Alarm Outputs on page 18 Table 8 Alarm Options Function Available Options Alarm Choose which alarm relay is being programmed 1 and or 2 Status Set whether or not the alarm is enabled Enabled or Disabled Humidity Temperature Pressure F E Parameter Set the parameter that can activate this alarm or User Equation See Table 4 on page 44 en Units Set the units for this parameter for parameter chosen E 7 SetPoint Inner Band Outer Band Type Set the type of condition that will activate the alarm Control Service PACER Upper The upper side of the alarm band Enter a number Lower The lower side of the alarm band Enter a number These fields are ignored if the alarm is set to Control Service or PACER The Upper and Lower limits set the alarm thresholds as desc
107. reLabels gt Tmp R lt sTemperatureLabels gt lt iPressureLabels gt 9 lt iPressureLabels gt lt sPressureLabels gt psia lt sPressureLabels gt lt sPressureLabels gt mbar lt sPressureLabels gt lt sPressureLabels gt bar lt sPressureLabels gt lt sPressureLabels gt Pa lt sPressureLabels gt lt sPressureLabels gt kPa lt sPressureLabels gt lt sPressureLabels gt mmHg lt sPressureLabels gt lt sPressureLabels gt inHg lt sPressureLabels gt lt sPressureLabels gt kg cm2 lt sPressureLabels gt lt sPressureLabels gt DyneCm2 lt sPressureLabels gt lt iUserLabels gt 3 lt iUserLabels gt lt sUserLabels gt 110 Optica Operator s Manual Appendix G Communicating with the OPTICA Using Ethernet G 2 5 Retrieving Labels and Functions cont lt sUserLabels gt UserEquation2 lt sUserLabels gt lt sUserLabels gt UserEquation3 lt sUserLabels gt lt iLabels gt 33 lt iLabels gt lt sLabels gt Tdew C lt sLabels gt lt sLabels gt Tdew F lt sLabels gt lt sLabels gt RH lt sLabels gt lt sLabels gt Twet C lt sLabels gt lt sLabels gt Twet F lt sLabels gt lt sLabels gt ppmv lt sLabels gt lt sLabels gt ppmw lt sLabels gt lt sLabels gt Grains Ib lt sLabels gt lt sLabels gt Grains SCF lt sLabels gt lt sLabels gt g kg lt sLabels gt lt sLabels gt g m3 lt sLabels gt lt sLabels gt Ib Mft3 lt sLabels gt lt sLabels gt Kj Kg 0 lt sLabels gt lt sLabels gt Kj Kg 32 lt sLabels gt lt
108. red Note Manual cleaning provides the most thorough cleaning 4 After manual cleaning initiate the Automatic Cleaning Balancing cycle This can be done by powering the analyzer off then on again if the front panel softkey is disabled 5 To program a specific time of day at which to initiate the Automatic Cleaning and Balancing a Highlight either Auto D or Pacer D b In the Set Time section input the time of day that you would like to initiate the balance cycle in a 24 hour format for example 13 30 will be 1 30 PM Note In this mode the front panel Pacer initiation function is disabled Powering down and restarting the unit will have no effect on the time programmed however the PACER will run on startup as is the normal function 6 To program an elapsed time to initialize the Automatic Cleaning and Balancing Highlight either AUTO or Pacer b In the set time section input the elapsed time in minutes For example 720 would enable the balance cycle to run every 12 hours Note Ifthe unit is powered down and restarted or the Automatic Balance is initiated from the font or using a LAN the elapsed time will reset Note Show Status should read Enabled 7 Select either Track or Hold for the analog outputs 4 20mA 0 5VDC Note IfTrack is selected the actual temperature of the mirror will be transmitted If Hold is selected the last prevailing dew point measured before the balance cycle was initiated will b
109. retrieve settings for the two analog outputs Command http 3 112 160 36 28005 OpticaAPI xml GetAnalogOutData 0 Function Name GetAnalogOutData Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIReturn Function GetAnalogOutData gt lt channel gt 0 lt channel gt lt UnitOffset gt 0 lt UnitOffset gt lt LowerLimit gt 40 000000 lt LowerLimit gt lt UpperLimit gt 60 000000 lt UpperLimit gt lt UnitOffset gt 17 lt UnitOffset gt lt LowerLimit gt 0 000000 lt LowerLimit gt lt UpperLimit gt 100 000000 lt UpperLimit gt lt retval gt GEIAPI_SUCCESS lt retval gt lt OpticaAPIReturn gt UnitOffset is an index to the list of labels In this case 0 refers to Tdew C G 2 7 Retrieving the Measured and Calculated Values This command enables the user to retrieve measured and calculated values for all supported units The status information is also returned Command http 3 112 160 36 28005 OpticaAPI xml GetCurrentData 0 Function Name GetCurrentData Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIReturn Function GetCurrentData gt lt channel gt 0 lt channel gt lt channelName gt Note Number is the number of data values returned This number is the same as iLabels of GetHTPLabels and those labels coincide with these values lt iNumber gt 33 lt iNumber gt lt fAllData gt 4 892536 lt fAllData gt
110. ribed below for each alarm type see details on page 18 SetPoint alarm activates when parameter exceeds upper limit and deactivates when parameter is less than lower limit Inner Band alarm activates when parameter is between upper and lower limits e Outer band alarm activates when parameter is outside upper and lower limits Control alarm activates when Optica is actively controlling mirror temperature Service alarm activates when Service indicator is activated e PACER alarm activates when PACER balance is active 48 Optica Operator s Manual Chapter 4 Programming the VGA Optica 4 5 4 Automatic Cleaning and Balance Function Note For Optica Analyzers with earlier versions of software see Appendix F Optica Analyzers with version 1 4 1a software have been upgraded to include the ability to program the PACER self cleaning and rebalancing cycle to run once per day at a preset time This is referred to as a Clock Time Interval When the unit is programmed in this manner the front panel PACER softkey is disabled The Elapsed Time Interval initiates the PACER at a preset time after the last PACER was run The automatic balance cycle will always run upon power up of the analyzers To program the Automatic Cleaning amp Balance Function on the Optica VGA monitor 1 Make sure the internal clock of the Optica has the correct time a From the main screen enter Menu then More then Set Time and Date
111. ring Heat Transfer Be sure the sensor has an adequate heat sink when operating in hot environments The sensor must never be allowed to reach a temperature above its rated limit It is not sufficient merely to ensure that the sensor is in an environment whose temperature is below the rated limit a means must be supplied to remove heat from the sensor When the Model 1111H or D 2 sensors are used at ambient temperatures of 20 to 24 C full rated depression can be achieved by mounting the sensor on a smooth thermally conductive surface such as metal which tends to remain at the ambient temperature If possible do not operate the sensor continuously at or near full depression Doing so may decrease the anticipated life of the thermoelectric heat pump 2 5 3 High Dew Point Measurements 2 5 3a Using Heated Sensors When measuring dew points at or above the ambient temperature the sensor must be heated to a temperature of at least 5 to 10 C above the highest anticipated dew point but not higher than the sensor temperature rating Some sensors can be mounted on a liquid heat exchanger or a temperature controlled electric hot plate or installed in a heated enclosure GE recommends closed loop active control of the elevated sensor body temperature The sensor base should be coated with zinc oxide filled silicone thermal grease and securely anchored to the heat sink with suitable fasteners Allow Y hour for the sensor to reach thermal equilibri
112. s of action will then be taken Ifthe damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned e f GE Sensing determines that the damage is not covered under the terms of the warranty or if the warranty has expired an estimate for the cost of the repairs at standard rates will be provided Upon receipt of the owner s approval to proceed the instrument will be repaired and returned Optica Operator s Manual 121 Warranty no content intended for this page 122 Optica Operator s Manual Customer Support Centers U S A The Boston Center 1100 Technology Park Drive Billerica MA 01821 U S A Tel 800 833 9438 toll free 978 437 1000 E mail sensing ge com Ireland Sensing House Shannon Free Zone East Shannon County Clare Ireland Tel 353 0 61 470291 E mail gesensingsnnservices ge com An ISO 9001 2000 Certified Company www ge mcs com about_us quality html www ge mcs com 2012 General Electric Company All rights reserved Technical content subject to change without notice A40238752 Rev E
113. self cleaning and optics rebalancing Detailed specifications for the Optica are given in Appendix A 1 3 TheSystem 1 3 1 System Components A complete Optica system consists of the following items e Electronic monitor Temperature sensor optional Dew point sensor Pressure sensor optional e Interconnecting sensor cable Maintenance kit e AC line cord e User s Manual Certification that the unit is traceable to the National Institute of Standards and Technology Certificate of Conformance 1 3 2 System Planning The Optica can be used for a wide variety of measurement applications including the measurement of dew points of gasses that are at pressures that exceed the measurement range of GE s sensors In this situation be sure to check the section Process Pressure on page 32 for installation planning 1 4 Sensors The Optica can be configured with a chilled mirror dew point sensor The specific sensor is chosen according to the expected dew point range and the environment in which the dew point is to be determined In addition the Optica can be configured with a temperature and or pressure sensor GE provides the following sensors for various applications Optica Operator s Manual 3 Chapter 1 Features and Capabilities 1 4 1 Dew Point Sensors Model 1111H Single stage sensor Model 1211H Two stage sensor high pressure and temperature e Model D 2 Two stage sensor e Model SIM 12H Two st
114. system may not be able to reach the true dew frost point To allow the 1311 XR sensor to act as a turnkey system whereby it will cover its entire range automatically set the switch to AUTO and the power supply control knob to the 80 C position 2 6 5f Heat Pump Controller Error Indicators The heat pump controller module has two overheat indicators connected to thermal shutdown switches If either indicator comes on check for and correct any problems before continuing operation Check the cable connections coolant flow and coolant temperature 2 65g Purging the Sensor CAUTION The 1311XR must be purged after each use either with the sample gas after measuring it or with another dry gas source Otherwise condensation inside the sensor housing may cause corrosion and eventual failure of the thermoelectric coolers For extremely dry gas measurements the 1311 XR sensor enclosure must be purged with a gas having a frost point lower than 20 C For intermediate temperatures any gas having a frost point at least as low as the sample gas can be used The sample gas outflow from the sensor can be used for this purpose if it is suitable non explosive non lethal etc Introduce the purge gas to the enclosure via the purge fitting on the rear of the sensor The simplest method for purging is to run the sample gas outflow through the U tube supplied with the sensor Optica Operator s Manual 27 Chapter 2 Installation 2 6 6 Mo
115. t sLabels gt lt sLabels gt Grains SCF lt sLabels gt lt sLabels gt g kg lt sLabels gt lt sLabels gt g m3 lt sLabels gt lt sLabels gt Ib Mft3 lt sLabels gt lt sLabels gt Kj Kg 0 lt sLabels gt lt sLabels gt Kj Kg 32 lt sLabels gt lt sLabels gt Btu Ib 0 lt sLabels gt lt sLabels gt Btu lb 32 lt sLabels gt lt sLabels gt pw mbar lt sLabels gt lt sLabels gt Tmp C lt sLabels gt lt sLabels gt Tmp F lt sLabels gt lt sLabels gt Tmp K lt sLabels gt lt sLabels gt Tmp R lt sLabels gt lt sLabels gt psia lt sLabels gt lt sLabels gt mbar lt sLabels gt lt sLabels gt bar lt sLabels gt lt sLabels gt Pa lt sLabels gt lt sLabels gt kPa lt sLabels gt lt sLabels gt mmHg lt sLabels gt lt sLabels gt inHg lt sLabels gt lt sLabels gt KgCm2 lt sLabels gt lt sLabels gt DyneCm2 lt sLabels gt lt sLabels gt lt sLabels gt UserEquation2 lt sLabels gt lt sLabels gt UserEquation3 lt sLabels gt lt retval gt GEIAPI_SUCCESS lt retval gt lt OpticaAPIReturn gt Optica Operator s Manual yes gt 109 Appendix G Communicating with the OPTICA Using Ethernet G 2 5 Retrieving Labels and Functions This command enables the user to retrieve different units that are supported by the Optica and the order in which they are referenced It also indicates which labels are humidity labels temperature labels and pressure labels Command http 3 112 160 36 28005 Optic
116. t Point Alarm s aonana dance Y a 18 WS SLM Lua eeu S cesi E DU MALAM E C 18 Alarms 4x40 Optica ox ead va Rr RU CEDERE 66 Retrieving Settings with Ethernet 107 Retrieving Types with Ethernet 108 VGA Opina oud vet uS i 48 Analog Outputs 4x40 Optica o ee a ad sia 64 Retrieving Information with Ethernet 112 Troubleshooting vetu AS p idu 86 VGA Optica 05 a iQ ad Ae Vea EN ud ed 46 BG RE DEEST ET IRR ID EI PU KE 17 Automatic Balance 4x40 Optica earlier software 103 VGA Optica earlier software 103 Automatic Cleaning and Balancing 4x40 Opt us cens herr EA DPI 68 69 70 VGA OPC a Leslie RI Uia 49 B Balancing a Sensor es ee x 38 Balancing Automatic 4x40 Optica oi aucntadesd bade oes 68 69 70 4x40 Optica earlier software 103 NGA ODD edu Res Rue uer A edes 49 VGA Optica earlier software 103 Benchtop Specifications Sa es Sta Root dret 89 Wiring Input Power oo ooooooooo o 13 Wiring Outputs 5 soo wore e pr 2k Beas 16 Witing Sensors coc e vay Rx RR ER 13 C Calibration sere iugis S aded ae sai 84 Chilled Mirror Sensor Comparison Chart di va ee RE eed 99 Chilled Mirror Sensors 5i voe e 6 cade aa 97 Optica Operator s Manual Index Cleaning Sensor Mirror ooooooo mo 77 Cleaning Automatic 4x40 Optica A Bat TAS 68 69 70 NGA Optica tater ta FI ac e See es 49 Communication Parameters 4
117. tional Pressure sensor 09 Flowmeter Figure 26 Measurement Scenario 1 3 6 4a Measuring Vapor Pressure Without a Pressure Sensor To measure vapor pressure without a pressure sensor make the following entries in the Pressure Input menu section for this example Input Use Default Units psia Default 100 Process Status Disabled 3 6 4b Measuring Vapor Pressure With a Pressure Sensor To measure vapor pressure with a 4 20 mA 0 30 psia pressure sensor connect the sensor to the Optica s terminal block and make the following entries in the Pressure Input menu nput In 4 20 Units psia Upper 30 00 Lower 0 00 Process Status Disabled Optica Operator s Manual 33 Chapter 3 Operation 3 6 5 Measuring Dew Point In this scenario dew point can be measured without knowledge of gas pressure Connect the equipment as shown above with or without a pressure sensor and follow the normal operating procedures 3 6 6 Scenario 2 Measurement Requiring the Process Pressure Feature Process pressure is 500 psi above the measurement range of a typical GE chilled mirror sensor A flow meter is installed upstream of the sensor cavity to expand the gas to be within the measurable range of the dew point sensor Since we wish to measure the dew point of the process gas and dew point is pressure dependent an accurate dew point measurement at the process pressure requires accommodating for the expansion to the
118. ty Temperature Pressure or User output on Line 1 Set the units for the selected See Table 4 on page 44 for the parameter chosen parameter Enter the number of decimal places for displayed data Enter a number 0 6 Choose which parameter will be Humidity Temperature Pressure or User output on Line 2 Set the units for the selected See Table 4 on page 44 for the parameter chosen parameter Enter the number of decimal places for displayed doto Enter a number 0 6 Choose which parameter will be Humidity Temperature Pressure or User output on Line 3 Set the units for the selected See Table 4 on page 44 for the parameter chosen parameter Enter the number of decimal places for displayeddata Enter a number 0 6 Table 26 Pressure Input Options Description Available Options Choose which pressure input channel is in use or disable this input 4 20 104 0 5 Volt User Default Choose the units for pressure units See Table 4 on page 44 for units Set the pressure that corresponds to Enter a number full scale input Set the pressure that corresponds to zero volts or 4 mA input Enter a number Pressure value to be used if a EN Enter a number measured input is disabled Enabled Disabled Enter the process pressure if this feature is enabled Enabled Disabled 67 Chapter 5 Programming the 4x40 Optica 5 2 8 Automatic Cleaning and Balance Function Note For Optica Analyzers
119. u rennen AO da ette i pv V 7 Chapter 2 Installation Introduction a A O A ISRPRG REND A ERS ve 9 Benchtop Installation ooooooooooro enn e er rh 9 2 2 1 Mounting the Benchtop eser sete t orte tar exse oe eR e o Ee Bit TPRRR e Dueh bt Pasto 9 2 2 2 Using the Rack Mounting Opti0M ooooooooocoorrr eee hh rs 10 2 2 3 Wiring the Benchtop om centeno gae eese d e LR S Sard epe Re eec E 13 Wall Mount Installation e eR REIR VERE A Cu ELS ERR NR OEY 14 2 3 1 Mounting the Wall Mount ooo oooooooo ea 14 2 3 2 Wiring the Wall Mount eoe eet a ea 15 Output WINE zz voce ti Eod pre Se ek ROO piam ii Bari ile vacitosmi en 16 2 41 Analog Outputs d eret AA ei e ee EP mes Budokan pa eU ek vac Vi 17 2 4 2 Alarm OPUS datu o EUREN COR RO CEU aa ow oid ahs aia p e a RE LBS 18 2 4 3 Serial Outputs A nEE ES 20 Sensor Information 6o p evene VUE REV NEA E UEM EUER AS E Seis 21 2 5 1 Sampling Lines lere eem ehm edere ee be geared scm Hd Rege pene PE Reed RU eh ce 21 2 5 2 Ensuring Heat OS ope MEN NEO RUE IH T EE ERU uS 22 2 5 3 High Dew Point Measurements o 22 Sensor Installation iui A A AE Deni A Rd eed Et indi Ss 24 2 61 Model LH Sensor uev RICE as Bae edu eae d 24 2 6 2 Model D 2 Sensor dem Mew aia ted aree Cedar ede MAR eb Gt dece et ace bat ode M de e 24 2 6 3 Model 12 1 TEE Sensor ied nere debent de eter e etre rebar S ERR Ede det eati 25 2 64 Model 13 LDR Sersot x noe Er ORE RR I Be Rte DE CR m E peat 25 2 6 5 Mode
120. um after adjusting the temperature of the heat sink The GE SIM 12H high temperature sensor is designed for high temperature applications It measures dew points above ambient temperature without condensation problems 2 5 30 Sample Lines for High Dew Point Measurements Sampling lines carrying gas to the sensor must be heated and insulated when the dew point of the gas is above the sample line s ambient temperature The simplest way to achieve this is to use heater tape either thermostatically controlled or continuously operating and sized to provide the required temperature rise At high temperatures use stainless steel tubing with adequate insulation to avoid hot and cold sections in the line and to avoid water absorption desorption cycling as the heater is thermostatically controlled Heated sampling lines HSL are available from GE Measurement amp Control 22 Optica Operator s Manual Chapter 2 Installation 2 5 3c Filter Requirements If the gas to be monitored is free from particulates and hydrocarbon liquids or vapor filtering is not necessary However most sample gas streams contain some particulates and using a filter reduces the need for frequent mirror cleaning On the other hand filtering tends to slow the system s response particularly at low frost points The series 912 filters manufactured by Balston Company or equivalent are effective for most applications For particulates and liquid hydrocarbons use
121. unicating with the OPTICA Using Ethernet G 2 1 Determining the Available Commands lt OpticaAPI gt SetAutoBalanceTypes lt OpticaAPI gt lt OpticaA PI gt SetChannelInfo lt OpticaAPI gt lt OpticaA PI gt SetCoolState lt OpticaA PI gt lt OpticaA PI gt SetCurrentData lt OpticaAPI gt lt OpticaAPI gt SetDataFields lt OpticaAPI gt lt OpticaAPI gt SetDataLogSettings lt OpticaAPI gt lt OpticaAPI gt SetHeatState lt OpticaA PI gt lt OpticaA PI gt SetHT PLabels lt OpticaAPI gt lt OpticaAPI gt SetHT PParam lt OpticaA PI gt lt OpticaAPI gt SetPacerOn lt OpticaAPI gt lt OpticaAPI gt SetPressureData lt OpticaAPI gt lt OpticaAPI gt SetOpticaInfo lt OpticaAPI gt lt OpticaAPI gt SetSerialCommData lt OpticaAPI gt lt OpticaA PI gt SetSerialData lt OpticaAPI gt lt OpticaA PI gt SetSupported BaudRate lt OpticaAPI gt lt OpticaA PI gt SetSupportedDataBits lt OpticaAPI gt lt OpticaAPI gt SetSupportedSerialDataFormat lt OpticaA PI lt OpticaA PI gt SetUserDefinedEquations lt OpticaAPI gt lt OpticaAPIInfo gt G 2 2 Retrieving the Alarm Settings Command http 3 112 160 36 28005 OpticaA PLxml GetA larmData 0 Function Name GetAlarmData Channel 0 Response lt xml version 1 0 encoding UTF 8 standalone yes gt lt OpticaAPIReturn Function GetAlarmData gt lt channel gt 0 lt channel gt lt AlarmType gt 2 lt AlarmType gt lt Enabled gt true lt Enabled gt lt UnitOffset gt 2 lt UnitOffset
122. uration vapor pressure with respect to water is a function of temperature only and is given by the following Ews 6 1121EXP _17 5021_ 240 97 T Saturation vapor pressure with respect to ice requires a minor adjustment of the constants as given by the following Eig 6 1115EXP 224521 272 55 T In addition to yielding saturation vapor pressure as a function of ambient temperature the above equations also yield ambient vapor pressure as a function of dew frost point The total pressure of a gas mixture is equal to the sum of the partial pressure each gas would exert were it to occupy the same total volume according to Dalton s law B 3 Humidity Relative Humidity is defined as the ratio of the water vapor pressure e to the saturation vapor pressure eg at the prevailing ambient or dry bulb temperature Ta RH 100 F 100 E WS A Absolute humidity is expressed as water vapor density water vapor mass per unit volume of dry air according to the following G 216 7E Tp M3 T 273 16 Water vapor content expressed as parts per million by volume is given by the following 6 E Tp PPM 10 P E Tp Expressing water vapor content as parts per million by weight or mixing ratio requires multiplication of the above by the ratio of the molecular weight of water to that of air as given by the following 6 E See Figure 50 on page 93 for a graphical humidity conversion chart 92 Optica Operator s
123. value by which the Pressure parameter parameter will be offset Pressure Filter Enter the filter value for the Pressure Enter the number of readings to be parameter averaged to create filtered Pressure Lockout Set whether or not the Heat Cool and OFF ON PACER functions can be activated by the softkeys on the front panel 70 Optica Operator s Manual Chapter 5 Programming the 4x40 Optica 5 2 11 User Equations See User Equations on page 44 for programming information Table 30 User Equation Options Setting Description Available Options Select Equation Choose an equation to enter or edit 1 2 0r3 Enter or edit the label identifying Edit Label 1 equation 1 Alphanumeric Enter or edit equation 1 using the Edit Equation 1 equation elements shown in Table 5 on See Table 5 on page 45 page 45 The equation number shown is the one chosen in Select Equation 5 2 12 Set Time and Date Table 31 Set Time and Date Options Setting Description Available Options Set Time Sets the time Enter digits one at a time pressing TAB Set Date Sets the date to move to the next digit 5 2 13 Special Table 32 Special Options Setting Description Available Options The molecular weight of the gas being Gas Mole Weight analyzed The default value is the Enter a number molecular weight of air 28 9645 5 2 14 User Default Settings Table 33 User Default Setting Options Setting Descr
124. vetet rete ce ete e ee D e ed e a E a oder th eR Rie ae tage 53 Men 2 iur coetum Ret eu PR NUR ION AI N o e dele eae etd de ee leone t ELI t elite my eet eoe Vd 55 A General 3 ceti tegUERIS EXER Ran pony etes tele tides else m vac Saves 56 4 6 2 Special wis a ds eM EA Cru LOT RR Ae DAL eta en t a icy I 56 4 6 3 User EQUINA v ee aed E EN E HUI EYE See iMd ee ewe 56 4 6 4 Communication Parameters 0 0 eee 57 4 6 5 Serial Output Data haa s 58 46 0 Set Time EDS te ea ee A epi ep en E Re a DEP e EU Eus 59 4 6 7 Restore Default Ente ata epu ep E en p RV OEC ST Ep E URS 59 Saving Configuration Files o o o o ooooooooorr eee mrs 60 Optica Operator s Manual V Contents Chapter 5 Programming the 4x40 Optica 5 0 1 Introduction Lec A A A A E Re RH S E e T 61 5 1 Programming Technique zs ieee EE E EROR e eM e ER A E ee CR 62 5 2 Programmiable F nctions 2 iod et eee dece ete id Pad Dara eden e dare qe E 64 5 2 Amalog Outputs tas AS 64 5 2 2 Communication Parameters iio orum ERR VUE e dir o bU v bend 64 5 2 3 Senial Output Units us ds a d ac eet va oA eR 65 5 2 4 Senial Output Setup esce ds cce c dd dao las 65 AN A RAN 66 5 2 6 Data Fields i etri HURTS er ADU eate queat n id dt al a 67 5 2 Pressure Input oe epe o ep m pes tete etate ft tabs Dau be Que oett d 67 5 2 8 Automatic Cleaning and Balance Function 0 0 0c cece e n ene eens 68 5 2 9 Buzzer and UA re asa He ae t LR eR deis 70 5 2 T0 Ge
125. with earlier versions of software see Appendix F Optica Analyzers with version 1 4 1a software have been upgraded to include the ability to program the PACER self cleaning and rebalancing cycle to run once per day at a preset time This is referred to as a Clock Time Interval When the unit is programmed in this manner the front panel PACER softkey is disabled The Elapsed Time Interval initiates the PACER at a preset time after the last PACER was run The automatic balance cycle will always run upon power up of the analyzers To program the Automatic Cleaning amp Balance Function on the Optica 4X40 monitor 1 Make sure the internal clock of the Optica has the correct time From the main screen Press the ENTER key b Press the DOWN soft key until Set Time and Date is displayed c Press the gt gt gt gt soft key d Press the gt gt gt gt soft key e Highlight the Date and Time fields using the tab key Use the keypad and softkeys to set the correct time 2 Set the Time Programmed Balance Cycle a Press the ENTER key to access the Main menu b Press the DOWN soft key until Auto Balance is shown c Press the gt gt gt gt soft key d Press the gt gt gt gt to set the interval Use the soft keys and the key pad e Press the ENTER key when done f Press the DOWN soft key to select the pacer type g Press the gt gt gt gt to enter selection mode h Press the DOWN soft key until the desired pacer type is displ
126. x C contains basic data for these calculations 40 Optica Operator s Manual Chapter 4 Programming the VGA Optica Chapter 4 Programming the VGA Optica 4 1 Introduction The Optica is programmed at the factory to display and output the data required for many applications see Table 3 on page 37 In these cases no further programming is required By programming the Optica the following categories of data can be customized for your application the front panel display up to six parameters displayed numerically and on the VGA screen a graphical display pressure input analog outputs serial output built in alarms datalogging miscellaneous functions A built in help system is included to answer questions you may have while operating the unit Select the HELP button and press ENTER to access it 4 2 Programming Fundamentals Programming is accomplished using two main menu screens and several secondary screens Each screen displays data fields and control buttons Use the TAB key to step through the fields on each screen through both the data fields and the control buttons e When a data field is selected you can change the value of the field as described on page 42 e When a control button is selected pressing ENTER performs the button s function The MORE control button accesses the next programming menu The OK control button returns to the previous level The HELP button accesses the unit
127. x40 Optica osos t xe vA vna 64 Setting with Ethernet Joco Raw 105 Computer Communication with Ethernet 106 Configuration Files Saving 60 Contamination Gaseous ContaminadtS ooooooo o oo 40 Minimizing the Effects o o oooooo 40 Mirror Cleanliness oooooooo o oo 39 Particulate Matter o ooooooo o oo 39 Water Soluble Contaminants 39 Coolant Model 1311XR Sensor 0 00 00 ee ee 26 D Data Fields 4x40 Optica s o acta whee Seba are Ree AS 67 VGA Opticas sieo La eda tra feed eed 51 Date of Publication lt lt 1 Default Settings coca eras ween 37 Definitions o oooooooooooooooooooo 101 Depression Capability o 97 101 Dew Point High Measurements torta 22 Sampling Lines s d sad Ree E RR RES 22 Supercooled ERN 39 Direct Communication with Ethernet 105 Display Balance Displayed cocida 86 Incorrect Dew PoilMt ooooooo o oo 85 Troubleshooting o an nunana naana 84 VOA a a cate etn dica 101 Document Number o ooooooooooo 1 E Electronics Enclosure Benchtopuu os dico te x Nds 2 Wall Mount sees RII 2 115 Index Enclosure Benchtop Installations 9 2 4 its ah 9 Benchtop Wiring 42st redada 13 Rack Mount Installation 10 Ethernet 4x40 Optica Configuration 114 A Pt wae heeds

Optica Operator`s Manual - GE Measurement & Control

Contents

Download Pdf Manuals

Related Search

Related Contents

Optica Operator`s Manual - GE Measurement &amp; Control

Contents

Download Pdf Manuals

Related Search

Related Contents

Optica Operator`s Manual - GE Measurement & Control