9102S Users Guide 5B..
Contents
1. Commands sent to the instrument must end with an EOS character which is a carriage return CR ASCII 13 or linefeed character LF ASCII 10 Com mands can be sent with upper or lower case letters Data returned from the in strument end with a carriage return If the linefeed setting is on a linefeed is also sent after the carriage return Interface Commands The various commands for accessing the calibrator functions via the digital in terface are listed in this section see Table 3 These commands are used with the RS 232 serial interface The commands are terminated with a carriage re turn character CR ASCII 13 The interface makes no distinction between up per and lower case letters hence either may be used Commands may be abbreviated to the minimum number of letters which determines a unique com mand A command may be used to either set a parameter or display a parameter depending on whether or not a value is sent with the command following a character For example s returns the current set point and s 120 0 sets the set point to 120 0 degrees In the following list of commands characters or data within brackets and J are optional for the command A slash denotes alternate characters or data Numeric data denoted by may be entered in decimal or exponential notation Characters are shown in lower case although upper case may be used Spaces may be added within command str2. The table below lists optional inserts carrying case and battery packs by model number Table 2 Accessories Model Description 3102 0 Blank Insert 3102 1 Mg 1 6 mm Insert 3102 2 3 2 mm Insert 3102 8 54 4 0 mm Insert 3102 3 4 4 8 mm Insert 3102 4 6 4 mm Insert 3102 5 54 7 9 mm Insert 3102 6 34 9 5 mm Insert 3102 7 Xe 11 1 mm Insert 19 9102S Dry well Calibrator User s Guide Model Description 9308 Rugged Carrying Case 9320 115 230 VAC Battery Pack Call your local Hart Scientific representative for current pricing 20 6 General Operation Setting the Temperature 6 1 6 2 General Operation Setting the Temperature Section 7 2 explains in detail how to set the temperature set point on the cali brator using the front panel keys The procedure is summarized here 1 Press SET twice to access the set point value 2 Press or W to change the set point value 3 Press SET to program in the new set point 4 Press and hold EXIT to return to the temperature display When the set point temperature is changed the controller switches the well heater on or off to raise or lower the temperature The displayed well tempera ture gradually changes until it reaches the set point temperature The well may require 5 to 10 minutes to reach the set point depending on the span Another 5 to 10 minutes is required to stabilize within 0 05 C of the set poin
3. 13 9102S Dry well Calibrator User s Guide 4 4 ture set point The front panel LED display will indicate the actual dry well temperature DC Power Operation This instrument is equipped with a DC power option The DC option requires a power source that delivers 12 VDC at 3 amps WARNING A fire may occur if a short circuit occurs along the input cord and no protective devices are on the DC input source For short cir cuit protection using a battery a fuse is required at the battery terminals The DC power socket is located on the rear panel of the instrument near the AC power jack The instrument accepts a 7 32 inch diameter two conductor DC power plug such as Switchcraft PN 760 Observe the correct polarity as shown in Figure 1 The outside conductor is positive and the inside is negative The AC power switch on the rear panel does not switch the DC power oo Figure 1 12 V DC Power Source Polarity The optional Model 9320 115 230 VAC Battery Pack available from Hart Sci entific can be used as a portable power source The battery pack includes a 17 amp hr 12V sealed lead acid battery a DC power cord that plugs into the in strument s DC input a carrying bag and a battery charger The 9320 115 230 VAC Battery Pack can be used with either 115 VAC or 230 VAC and takes 6 hours to charge a fully discharged battery To recharge the battery pack disconnect the battery s plug from the instrument and plug it into t
4. Hart Scientific 9 91025 Dry Well Calibrator User s Guide Rev 5B0701 Fluke Corporation Hart Scientific Division 799 E Utah Valley Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail support hartscientific com www hartscientific com Subject to change without notice Copyright O 2005 Printed in USA Rev 5B0701 Table of Contents 1 Before You Start 1 1 Symbols Used ee we coo som ee RS 1 1 2 Safety Information 2 1 2 1 WARNINGS 40 o3 iaci Bae a ee ee AVE eee opu a 2 1 2 2 CAUTIONS 4X anene a el a doc od 4 1 3 Authorized Service 5 2 Introduction 9 3 Specifications and Environmental Conditions 11 3 1 Specifications 2 2445 4 ee reis RR 11 3 2 Environmental Conditions 11 3 3 Warranty sc vo By ear ee hi UM SA uh Xo x Uy Ee oe 12 4 Quick Start 2 2 2929 ee Si essere xs B 4 1 Unpacking su css aes Gad SLE OR oe ee eR po MS ER 13 4 2 Set p s bipes dob des segs eue ceive 4 13 4 3 AC Power Operation ees 13 44 DC Power Operation s o RR RR 14 4 5 Setting the Temperature 2 2 ee 15 5 Parts and Controls 17 5 1 R ar Panel o o RR REOR T E URS 17 5 2 Front PANEL s ni eg ev dl eie AU as
5. The LED front panel shows the current well temperature The temperature may be set using the control buttons to any desired temperature within the instru ment s range Multiple fault protection devices insure user and instrument safety and protection This dry well calibrator was designed for portability low cost and ease of op eration Through proper use and maintenance the instrument will provide con tinued accurate calibration of temperature sensors and devices The user should be familiar with the safety guidelines and operating procedures of the calibrator as described in the instruction manual 3 Specifications and Environmental Conditions Specifications 3 1 3 2 Specifications and Environmental Conditions Specifications Range 10 C to 122 C 14 F to 252 F at an ambient of 23 C Accuracy 0 25 C Stability 0 05 C Resolution 0 1 C or F Well to Well Uniformity 0 2 C with sensors of similar size at equal depths within wells Heating Times ambient to 100 C 10 minutes Stabilization 7 minutes Cooling Times ambient to 0 C 10 minutes Well Depth 4 inches 102 mm Removable Inserts refer to Section 5 3 Accessories Power 94 234 VAC 10 50 60 Hz 50 W or 12 VDC Size 4 Hx6 Wx6 9 D 100 mm x 152 mm x 175 mm Weight 4 lb 1 8 Kg Safety Conforms to EN61010 1 Conforms to CAN CSA C22 2 No 1010 1 UL3111 and ANSI ISA S82 01 Fault Protection
6. With a digital interface the instrument may be connected to a computer or other equipment This allows the user to set the set point temperature monitor the temperature and access any of the other controller functions all using re mote communications equipment Communications commands are summarized in Table 3 on page 37 RS 232 Connection The three conductor jack for the serial port is located on the back of the instru ment One serial cable is included Additional or longer cables of three meters or less can be constructed by following the wiring diagram shown in Figure 5 Note The TxD line on one side connects to the RxD line on the other and vice versa To reduce the possibility of electrical interference the serial cable should be shielded with low resistance between the connector and the shield and should not be much longer than is necessary The protocol for serial com munications is 8 data bits 1 stop bit and no parity Use no flow control Set the linefeed to ON all carriage returns are followed by a linefeed LF ASCII 10 and the duplex to HALF disabling echo Y GND GND RxD 10 10 Mb Figure 5 Serial Cable Wiring 35 9102S Dry well Calibrator User s Guide 36 8 2 The serial port can be used to transmit measurements to a computer or printer or to change settings of the instrument from a computer A full list of com mands follows in Section 8 2
7. Flashes for one second and then the RO setting is displayed 399 999 New RO setting To accept new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new RO setting ALPHA This probe parameter refers to the average sensitivity of the probe between 0 and 100 C The value of this parameter is set at the factory for best instrument accuracy ALPHA Flashes for one second and then the ALPHA setting is EAE 38530 Current ALPHA setting O 38600 New ALPHA setting To accept new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new ALPHA setting DELTA This probe parameter characterizes the curvature of the resistance temperature relationship of the sensor The value of this parameter is set at the factory for best instrument accuracy DELER j Flashes for one second and then the DELTA setting is m bM diplodd 33 9102S Dry well Calibrator User s Guide 34 O To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new DELTA setting 8 Digital Communication Interface RS 232 Connection 8 1 Digital Communication Interface This instrument is capable of communicating with and being controlled by other equipment through the digital serial interface
8. Sensor burnout protection over temperature cutout and electrical fuses Fuse Rating 250 V 3 A FF very fast acting NO USER SERVICEABLE PARTS Environmental Conditions Although the instrument has been designed for optimum durability and trou ble free operation it must be handled with care The instrument should not be operated in an excessively dusty or dirty environment Maintenance and clean ing recommendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions e temperature range 5 50 C 41 122 F e ambient relative humidity 15 50 e pressure 75kPa 106kPa e mains voltage within 10 of nominal e vibrations in the calibration environment should be minimized 11 9102S Dry well Calibrator User s Guide 3 3 e altitudes less than 2000 meters e indoor use only Warranty Fluke Corporation Hart Scientific Division Hart warrants this product to be free from defects in material and workmanship under normal use and service for a period as stated in our current product catalog from the date of shipment This warranty extends only to the original purchaser and shall not apply to any product which in Hart s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or handling Software is warranted to operate in accordance with its programmed instruc tions on appropriate Hart products It is not warrante
9. more information e Before using any cleaning or decontamination method except those rec ommended by Hart users should check with an Authorized Service Cen ter see Section 1 3 to be sure that the proposed method will not damage the equipment e Ifthe instrument is used in a manner not in accordance with the equip ment design the operation of the dry well may be impaired or safety haz ards may arise 45 Solutions 12 Troubleshooting Troubleshooting Problems Possible Causes and 12 12 1 Troubleshooting This section contains information on troubleshooting CE Comments and a wiring diagram Troubleshooting Problems Possible Causes and Solutions In the event that the instrument appears to function abnormally this section may help to find and solve the problem Several possible problem conditions are described along with likely causes and solutions If a problem arises please read this section carefully and attempt to understand and solve the problem If the problem cannot otherwise be solved contact an Authorized Service Center see Section 1 3 for assistance Be sure to have the model number serial num ber voltage and problem description available Problem Possible Causes and Solutions Incorrect tempera Incorrect RO ALPHA and DELTA parameters Find the value for RO ALPHA and ture reading DELTA on the Report of Calibration Reprogram the parameters into the instrument see Section 7 12 Cali
10. 125 C 122 to 257 F Serial Interface Menu Read serial sample setting sa mple sa sa 99999 sa 1 Set serial sampling setting to n seconds sa mple n sa 0 0 to 10 000 Set serial duplex mode du plex f ull h alf FULL or HALF Set serial duplex mode to full du plex f ull du f Set serial duplex mode to half du plex h alf du h Set serial linefeed mode Iffeed on of f ON or OFF Set serial linefeed mode to on If eed on If on Set serial linefeed mode to off If eed of f If of 37 9102S Dry well Calibrator User s Guide Controller Communications Commands continued Command Command Returned Acceptable Command Description Format Example Returned Example Values Calibration Menu Read RO calibration parameter r 0 r r0 999 999 r0 100 7 Set RO calibration parameter to n r 0 n r 100 7 95 0 to 105 0 Read ALPHA calibration parameter al pha al al 9 99999999 al 0 003865 Set ALPHA calibration parameter ton al pha n al 0 003865 0 002 to 0 006 Read DELTA calibration parameter delta de de 1 50 Set DELTA calibration parameter de Ita n de 1 37 de 9 99999 0 0 3 0 Miscellaneous Other Commands Read firmware version number ver sion ver ver 9999x 9 99 ver 91028 1 10 Read structure of all commands h elp h list of commands Read ALL operating parameters all all list of parameters Read set point sr sr 999 999 ohms 100 123 ohms Legend Note Optional command data Returns either info
11. RO and ALPHA a T deta 8 a dena R a rzero R alpha 34 Rd delta is the new value of DELTA computed above Program the new values for DELTA delta RO rzero and ALPHA alpha into the dry well using the following steps 1 Press SET and EXIT at the same time Press SET until PAR is displayed and then press until CL is displayed 2 Press SET five times to enter the menu 3 Press SET and or W until the correct numerical setting is dis played Press SET to accept the new value 10 Calibration Procedure Calibration Procedure 10 2 3 4 Repeat step 3 for ALPHA and DELTA 5 Press EXIT to show the displayed temperature Accuracy and Repeatability Check the accuracy of the dry well at various points over the calibration range If dry well does not pass specification at all set points repeat the Calibration Procedure 43 11 Maintenance 11 Maintenance e This instrument has been designed with the utmost care Ease of operation and simplicity of maintenance have been a central theme in the product development Therefore with proper care the instrument should require very little maintenance Avoid operating the instrument in an oily wet dirty or dusty environment e If the outside of the instrument becomes soiled it may be wiped clean with a damp cloth and mild detergent Do not use harsh chemica
12. Setting the Temperature Section 7 2 explains in detail how to set the temperature set point on the cali brator using the front panel keys The procedure is summarized here 1 Press SET twice to access the set point value 2 Press or W arrow to change the set point value 3 Press SET to program in the new set point 4 Press and hold EXIT to return to the temperature display When the set point temperature is changed the controller switches the well heater on or off to raise or lower the temperature The displayed well tempera ture gradually changes until it reaches the set point temperature The well may require 5 to 10 minutes to reach the set point depending on the span Another 5 to 10 minutes is required to stabilize within 0 1 C of the set point Ultimate stability may take 15 to 20 minutes more of stabilization time 15 5 Parts and Controls Rear Panel 5 Parts and Controls The user should become familiar with the dry well calibrator and its parts See Figures 2and 3 5 1 Rear Panel Power Cord The removable power cord Figure 2 attaches to the back side of the instrument It plugs into a standard 115 VAC optional 230 VAC grounded socket POWER 94 234 V 50 60 Hz 12V3 3A Figure 2 Back Panel 17 9102S Dry well Calibrator User s Guide 5 2 DC Power Jack The calibrator can be used with a DC power source The DC input jack requires 12V and 3 3 am
13. controller such as this the heater output power is proportional to the well temperature over a limited range of temperatures around the set point This range of temperature is called the proportional band At the bot tom of the proportional band the heater output is 100 At the top of the pro portional band the heater output is 0 Thus as the temperature rises the heater power is reduced which consequently tends to lower the temperature back down In this way the temperature is maintained at a constant level The temperature stability of the well and response time depend on the width of the proportional band If the band is too wide the well temperature deviates ex cessively from the set point due to varying external conditions This is because the power output changes very little with temperature and the controller cannot respond very well to changing conditions or noise in the system If the propor tional band is too narrow the temperature may swing back and forth because the controller overreacts to temperature variations For best control stability the proportional band must be set for the optimum width The proportional band width is set at the factory as printed on the Report of Calibration The proportional band width may be altered by the user if desired to optimize the control characteristics for a particular application The proportional band width is easily adjusted from the front panel The width may be set to discrete values
14. display reading are to the right of each button or display value Well Temperature The digital LED display on the front panel allows direct viewing of the actual well temperature This temperature value is normally shown on the display The units C or F of the temperature value are displayed at the right For example 100 0 C Well temperature in degrees Celsius The temperature display function may be accessed from any other function by holding and releasing the EXIT button Temperature Set point The temperature set point can be set to any value within the range and with res olution as given in the specifications Be careful not to exceed the safe upper temperature limit of any device inserted into the well Setting the temperature involves selecting the set point memory and adjusting the set point value Programmable Set points The controller stores 8 set point temperatures in memory The set points can be quickly recalled to conveniently set the calibrator to a previously programmed temperature set point To set the temperature first select the set point memory This function is ac cessed from the temperature display function by pressing SET The number of the set point memory currently being used is shown at the left on the display followed by the current set point value 23 9102S Dry well Calibrator User s Guide Display Temperature y Select Setpoint I SET EXI
15. in degrees C or F depending on the selected units The proportional band adjustment is accessed within the secondary menu Press SET and EXIT to enter the secondary menu and show the heater power Then press SET to access the proportional band ser Access heater power in secondary menu 7 Controller Operation Controller Configuration 7 8 7 9 7 10 SEL Flashes SEC for secondary menu and then displays the M E heater power 12 0P Heater power in percent SET Access proportional band Prop Flashes Pr oP and then displays the setting 4 1 Proportional band setting O 10 0 New proportional band setting To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new proportional band setting Controller Configuration The controller has a number of configuration and operating options and calibra tion parameters which are programmable via the front panel These are ac cessed from the secondary menu after the proportional band function by pressing SET Pressing SET again enters the first of three sets of configu ration parameters Operating parameters serial interface parameters and cali bration parameters The menus are selected using the up and down arrows and then pressing SET Operating Parameters The operating parameters menu is indicated by PAr i Operating parameters menu ped The operating parame
16. op eration DO NOT use fluids to clean out the well 1 Before You Start Authorized Service Centers 1 3 Never introduce any foreign material into the probe hole of the insert Fluids etc can leak into the instrument causing damage DO NOT change the values of the calibration constants from the factory set values The correct setting of these parameters is important to the safety and proper operation of the calibrator DO NOT drop the probe sheath in to the well This type of action can cause a shock to the sensor and affect the calibration The instrument and any thermometer probes used with it are sensitive in struments that can be easily damaged Always handle these devices with care DO NOT allow them to be dropped struck stressed or overheated The Factory Reset Sequence see Section 12 1 Troubleshooting should be performed only by authorized personnel if no other action is successful in correcting a malfunction You must have a copy of the most recent Re port of Calibration to restore the calibration parameters DO NOT operate this instrument in an excessively wet oily dusty or dirty environment Always keep the well and inserts clean and clear of foreign material The dry well is a precision instrument Although it has been designed for optimum durability and trouble free operation it must be handled with care Always carry the instrument in an upright position to prevent the probe sleeves from falling out
17. temperature 400 C and higher dry wells Note Probes and inserts may be hot and should only be inserted and removed from the instrument when the instrument is set at temperatures less than 50 C Use extreme care when removing hot inserts DO NOT turn off the instrument at temperatures higher than 100 C This could create a hazardous situation Select a set point less than 100 C and allow the instrument to cool before turning it off The high temperatures present in dry wells designed for operation at 300 C and higher may result in fires and severe burns if safety precau tions are not observed A fire may occur if a short circuit occurs along the input cord and no pro tective devices are on the DC input source For short circuit protection us ing a battery a fuse is required at the battery terminals 9102S Dry well Calibrator User s Guide ELECTRICAL SHOCK DO NOT operate this instrument without a properly grounded properly polarized power cord Electric shock may result DO NOT connect this instrument to a non grounded non polarized out let Ensure the earth ground to the outlet is properly connected Electrical shock may result if the outlet is not installed correctly Always replace the power cord with an approved cord of the correct rat ing and type HIGH VOLTAGE is used in the operation of this equipment SEVERE INJURY or DEATH may result if personnel fail to observe safety precau tions Before working inside
18. the equipment turn power off and discon nect power cord If supplied with user accessible fuses always replace the fuse with one of the same rating voltage and type BATTERY PACK To avoid the risk of electric shock or fire do not use the charger outdoors or in a dusty dirty or wet environment If the cord case or plug of the charger is damaged in any way discon tinue its use immediately and have it replaced Never disassemble the charger The battery may contain chemicals that are hazardous To avoid the risk of exposure to dangerous substances or explosion immediately discon tinue use of the battery if it leaks or becomes damaged Never allow the battery to be shorted heated punctured dropped or crushed Store the battery where it will not come into contact with metal or fluids that might short circuit the battery and where it will be safe from exces sive temperatures When no longer usable the battery must be recycled The battery may be returned to the seller for recycling Do not dispose of the battery in a land fill Never dispose of the battery in fire as there is danger of explosion which may cause injury or property damage 1 2 2 A CAUTIONS Always operate this instrument at room temperature between 41 F and 122 F 5 C to 50 C Allow sufficient air circulation by leaving at least 6 inches 15 cm of clearance around the instrument Component lifetime can be shortened by continuous high temperature
19. 0 600 1200 2400 default 4800 or 9600 BAUD Use the up or down arrows to change the BAUD rate value 4800 b New BAUD rate OO Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu 7 Controller Operation Serial Interface Parameters 7 11 2 7 11 3 7 11 4 Sample Period The sample period is the next parameter in the serial interface parameter menu The sample period is the time period in seconds between temperature measure ments transmitted from the serial interface If the sample rate is set to 5 the in strument transmits the current measurement over the serial interface approximately every five seconds The automatic sampling is disabled with a sample period of 0 The sample period is indicated by SPEr Flashes for one second and then the serial sample period ice c x nina ds displayed Current sample period seconds Mattessuesadasessassunerseaceuaseees 60 New sample period Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Duplex Mode The next parameter is the duplex mode The duplex mode may be set to full du plex or half duplex With full duplex any commands received by the calibrator via the serial interface are immediately echoed or transmitted back to the device of origin With half duplex the commands are executed but not echoed The du plex mode para
20. 18 5 3 4 sum kaa be C e or ges bs 19 6 General Operation 21 6 1 Setting the Temperature 2 2 21 6 2 Changing Display 21 7 Controller Operation 23 7 1 Well Temperature 22cm o y ys 23 7 2 Temperature Setpoint o 23 7 2 1 Programmable SetspolltS 5 sono a aoe we Place Hw 23 7 2 2 Setpoint Valle danita a a aa RRA RUE RA 25 7 2 3 Temper ture Scale Units cios di wk ae e ey Seca ee 25 7 3 CAM da E En 26 7 3 1 Scan Control A eA ware Se ae ees EEE ea Se 26 7 3 2 Y COE 26 7 4 Set point Resistance o o ee 27 7 5 secondary Menu ee Roe B 9 A 27 7 6 HeatemRoOwer sc us ve A ed a a 27 77 Proportional Band 28 7 8 Controller Configuration s s s es s s o e raspis 29 7 9 Operating Parameters o s caor 22 bo eric x 29 T0 High Limit e 222 9 EXP UR TU oy ox v 29 7 11 Serial Interface Parameters 30 7 11 1 BAUD Bole Lux sae eS A eS 30 7 11 2 Sample Period aer epe SACRE Ee Ro ROS 31 7 11 3 Duplex Mode 25 c a I Gv oS dl ee us 31 7 11 4 IEnri c Pcr 31 7 12 Calibration Parameters 32 7 12 1 BR Vu cp ed s EU la eo ae ee BRAD REG A 32 112 2 AEPHA SA AAA RS A A AA 33 123 DELTA p sia sopan ap
21. Controller problem The error messages signify the following problems with the controller Err 1 a RAM error Er r 2 aNVRAM error Err 3 a Structure error Ecc 4 an ADC setup error Err 5 an ADC ready error Er r 6 a defective control sensor Err 1 a heater error Initialize the system by performing the Factory Reset Sequence describe above Temperature can not be set above a certain point Incorrect High Limit parameter The High Limit parameter may be set below 125 C Check this value as described in Section 7 9 Operating Parameters Display is reading incorrectly The instrument was turned off at high temperatures and reenergized too quickly Turn the instrument off until the display is completely off and then reenergize Display flickers when the instru ment is turned off This is normal operation and is more prevalent at high temperatures due to Seebeck Coefficient of the thermoelectric cooling devices Some time is required to fully dis charge the switching power supply and to complete the power off cycle The instrument does not reach temperature The specifications for the instrument include an ambient temperature of 23 C If the ambient temperature is above 23 C the instrument may not be able to reach the lowest specified temperature Check the ambient temperature if the instrument does not reach maximum temperature CE Comments EMC Directive Hart Scientific s equipment has been tested to m
22. T Adjust Setpoint I SET EXIT Y y Units C F SET EXIT Scan On Off SET EXIT Scan Rate E nd SE SET DOWN Secondary Functions SET Display Power Set Point Resistance SEI EXIT Set Proportional Ban l EXIT I SET EXIT Y Configuration Menu Lom Operating Parameters Menu HL SEI EXIT UP DOWN EXIT UP Serial Interface Figure 4 Controller Operation Flow Chart 24 Menu Adjust BAUD Rate SEI EXIT Sample Adj Sample SET EXIT Adj Duplex Mode SEL EXIT Linefeed Adjust Linefeed SET EXIT o DOWN Qu ua se g s 5 Select RO Adjust RO t p SET EXIT Select ALPHA DO NOT CHANGE THESE VALUES 8 8 Adjust ALPHA SET EXIT Select DELTA Adjust DELTA 1 SET EXIT Menu Legend Press SET to step through the menu and store the parameter value Press EXIT briefly to skip a parameter without storing the paramet
23. The convenient handle strap allows for one hand carrying If a mains supply power fluctuation occurs immediately turn off the in strument Power bumps from brown outs could damage the instrument Wait until the power has stabilized before re energizing the instrument The prop stand was not designed to be used as a handle for carrying the instrument To avoid damage do not force the prop stand beyond the in cline positions of the instrument Allow for probe expansion inside the well as the block heats Most probes have handle temperature limits Be sure that the probe handle temperature limit is not exceeded in the air above the instrument Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product Fluke Corporation Hart Scientific Division 799 E Utah Valley Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 9102S Dry well Calibrator User s Guide Telefax 1 801 763 1010 E mail support hartscientific com Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone 31 402 675300 Telefax 31 402 675321 E mail ServiceDesk fluke nl Fluke Int l Corporation Service Center Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang District Beijing 100004 PRC CHINA Phone 86 10 6 512 3436 Telefax 86 10 6 512 3437 E mail xingye han fluke com cn Flu
24. aaa a AA 33 8 Digital Communication Interface 35 8 1 RS 232 Connection rs a aE 35 8 2 Interface Commands xicos 99 EG 36 9 Test Probe Calibration ee 39 9 1 Calibrating a Single Probe o 39 9 2 Dry well 15 39 9 2 1 Stabilization and 39 10 Calibration Procedure 41 10 1 Calibration Points s s 45 5 0 Ress Ode we 41 10 2 Calibration Procedure ee 41 10 2 1 Compute DELTA ii aoe eR Soe a a AR 41 10 2 2 Compute RO and ALPHA aaa 42 10 2 3 Accuracy and Repeatability o se cce ee 43 11 Mamiena ee nectar OR 45 12 Troubleshooting tt twn 47 12 1 Troubleshooting Problems Possible Causes and Solutions 47 122 CEComments 2 48 12 2 1 EMC Direcuye ua a a Ra PERE 48 12 2 2 Low Voltage Directive Safety lii Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 12 DC Power Source 14 Back Panels nidad RG oe Saar ae sex 17 Front Panel 4 2 6o e moo m eo Rm eee eee oo 18 Controller Operation Flow 24 serial Cable WIEME 4 GR aE eS Sw 35 Tables Tablel Internat
25. bration Parameters Allow the instrument to stabilize and ver ify the accuracy of the temperature reading Controller locked up The controller may have locked up due to a power surge or other aberration Initialize the system by performing the Factory Reset Sequence Factory Reset Sequence Hold the SET and EXIT buttons down at the same time while powering up the instrument The instrument displays shows init the model number and the firmware version Each of the controller parameters and calibration constants must be reprogrammed The values can be found on the Report of Cali bration see Section 7 12 Calibration Parameters The instrument Incorrect scan and scan rate settings The scan and scan rate settings may be heats or cools too set to unwanted values Check the Scan and Scan Rate settings The scan may be quickly or too off if the unit seems to be responding too quickly The scan may be on with the slowly Scan Rate set low if unit seems to be responding too slowly Improper line voltage Verify that the voltage reading in the bottom of the unit matches the source voltage Unstable display Wait Allow the instrument to stabilize for a few minutes Proportional band may be incorrect Refer to the proportional band on the Report of Calibration 47 9102S Dry well Calibrator User s Guide 48 12 2 12 2 1 12 2 2 Problem Possible Causes and Solutions The display shows an error code
26. cale units currently selected Press the up or down arrow to change the units 25 9102S Dry well Calibrator User s Guide 26 7 3 7 3 1 7 3 2 New units selected Press SET to accept the new units or EXIT to cancel Note The temperature scale units may also be changed by pressing SET and A when the temperature is displayed Scan The scan rate can be set and enabled so that when the set point is changed the dry well heats or cools at a specified rate degrees per minute until it reaches the new set point With the scan disabled the dry well heats or cools at the maximum possible rate Scan Control The scan is controlled with the scan on off function that appears in the main menu after the temperature scale units 5c Sc flashes for one second and then the current scan setting E OFF Scan function off Scan function on Press SET to accept the present setting and continue Press EXIT to cancel Accept scan setting Scan Rate The scan rate can be set from 0 1 to 99 9 C min The maximum scan rate how ever is actually limited by the natural heating or cooling rate of the instrument This rate is often less than 100 C min especially when cooling The scan rate function appears in the main menu after the scan control function The scan rate units are in degrees Celsius per minute regardless of the selected units Sr Sr flashes for one second and t
27. d to be error free Hart s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is determined upon examination by Hart to be defective If Hart determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal condi tions or operation or handling Hart will repair the product and bill the pur chaser for the reasonable cost of repair To exercise this warranty the purchaser must forward the product after calling or writing a Hart Scientific Authorized Service Center see Section 1 3 The Service Center assumes NO risk for in transit damage THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLU SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EX PRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE HART SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE 4 Quick Start Unpacking 4 1 4 2 4 3 Quick Start Unpacking Unpack the dry well carefully and inspect it for any damage that may have oc curred during shipment If there is shipping damage notify the carrier immediately Verify that the following components are present e 9102S Dry well e Power Cord e User s Guide with Report of Calibration e RS 232 Cable e 9930 Interface it Sof
28. e made at the desired temperatures with the desired test probes to establish these times 40 10 Calibration Procedure Calibration Points 10 10 1 10 2 10 2 1 Calibration Procedure Sometimes the user may want to calibrate the dry well to improve the tempera ture set point accuracy Calibration is done by adjusting the controller probe calibration constants RO ALPHA and DELTA so that the temperature of the dry well as measured with a standard thermometer agrees more closely with the set point The thermometer used must be able to measure the well temperature with higher accuracy than the desired accuracy of the dry well By using a good thermometer and following this procedure the dry well can be calibrated to an accuracy of better than 0 25 C over its full range Calibration Points In calibrating the dry well RO ALPHA and DELTA are adjusted to minimize the set point error at each of three different dry well temperatures Any three reasonably separated temperatures may be used for the calibration Improved results can be obtained for shorter ranges when using temperatures that are just within the most useful operating range of the dry well The farther apart the calibration temperatures the greater the calibrated temperature range However the calibration error is also greater over the range For instance if 10 C to 100 C is chosen as the calibration range the calibrator may achieve an accu racy of 0 25
29. e accessed within the secondary menu The secondary menu is accessed by pressing SET and EXIT simulta neously and then releasing The first function in the secondary menu is the heater power display See Figure 4 Heater Power The temperature controller controls the temperature of the well by pulsing the heater on and off The total power being applied to the heater is determined by the duty cycle or the ratio of heater on time to the pulse cycle time By knowing the amount of heating the user can tell if the calibrator is heating up to the set point cooling down or controlling at a constant temperature Monitoring the percent heater power allows the user to know the stability of the well tem perature With good control stability the percent heating power should not fluc tuate more than 5 within one minute 27 9102S Dry well Calibrator User s Guide 28 7 7 The heater power display is accessed in the secondary menu Press SET and EXIT simultaneously and release The heater power is displayed as a percent age of full power 100 0 Well temperature ev Access heater power in secondary menu SEC Flashes SEC for secondary menu and then displays the heater p wer 12 0P Heater power in percent To exit out of the secondary menu press EXIT To continue on to the propor tional band setting function press SET Proportional Band In a proportional
30. eet the European Electromag netic Compatibility Directive EMC Directive 89 336 EEC The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Hart Scientific equipment has been designed to meet the IEC 1010 1 EN 61010 1 and the IEC 1010 2 010 EN 61010 2 010 standards
31. el are the well openings where probes may be inserted into the well The block is designed to accept temperature sensors up to 1 2 12 7 mm in diameter The wells can be made to accept probes of smaller than 1 2 12 7 mm diameter by using optional in serts Probes should fit snugly into the wells for best results Controller Display The digital display is an important part of the temperature controller because it not only displays set and actual temperatures but also indi cates various calibrator functions settings and constants The display shows temperatures in units according to the selected scale C or F Controller Keypad The four button keypad allows easy setting of the set point temperature The control buttons SET V A and EXIT are used to set the calibrator temperature set point access and set other operating parame ters and access and set calibration parameters Setting the control temperature is done directly in degrees of the current scale It can be set to one tenth of a degree Celsius or Fahrenheit The functions of the buttons are as follows SET Used to display the next parameter in the menu and to store parameters to the displayed value W down arrow Used to decrement the displayed value of parameters A up arrow Used to increment the displayed value EXIT Used to exit a function and to skip to the next function Any changes made to the displayed value are ignored Accessories
32. er value Hold EXIT 2 seconds to exit the menu and display the temperature 7 Controller Operation Temperature Set point 7 2 2 7 2 3 100 0 C Well temperature in degrees Celsius SET Access set point memory 100 Set point memory 1 location 100 C currently used pL 4 50 New set point memory 4 location 50 C Press SET to accept the new selection and access the set point value Press EXIT to continue and to ignore any changes Accept selected set point memory Set point Value The set point value may be adjusted after selecting the set point memory and pressing SET 5f Set point 4 value in C If the set point value does not need to be changed press and hold EXIT to re sume displaying the well temperature To change the set point value press SET and then press the up or down arrow 50 New set point value a When the desired set point value is reached press SET to accept the new value and access the temperature scale units selection If EXIT is pressed any changes made to the set point are ignored Accept new set point value Temperature Scale Units The temperature scale units of the controller maybe set by the user to degrees Celsius C or Fahrenheit F The units are used in displaying the well tem perature set point proportional band and high limit Press SET after adjusting the set point value to change display units Un S
33. esults A CAUTION Never allow foreign material into the wells of the block Fluids and other materials can damage the instrument causing binding and dam age to your probe Dry well Characteristics There is a temperature gradient vertically in the test well The heater has been applied to the block in such a way as to compensate for nominal heat losses out of the top of the dry well However actual heat losses vary with design of the thermometer probes inserted into the calibrator and the temperature For best results insert probe to full depth of well Stabilization and Accuracy The stabilization time of the instrument depends on the conditions and temper atures involved Typically the test well stabilizes to 0 05 C within 7 minutes of reaching the set point temperature as indicated by the display Ultimate sta bility is achieved 10 to 20 minutes after reaching the set temperature Depending on the magnitude of the disturbance and the required accuracy in serting a cold probe into a warm well will require another stabilization period For example inserting a 0 25 inch diameter room temperature probe into a sleeve at 120 C takes 7 minutes to be within 0 05 C of its settled point and might take 15 minutes to achieve maximum stability Speeding up the calibration process can be accomplished by knowing how soon to make the measurement It is recommended that typical measurements be 39 9102S Dry well Calibrator User s Guid
34. for 4 hours or more DO NOT use this instrument for any application other than calibration work The instrument was designed for temperature calibration Any other use of the instrument may cause unknown hazards to the user Completely unattended operation is not recommended Overhead clearance is required DO NOT place the instrument under a cabinet or other structure Always leave enough clearance to allow for safe and easy insertion and removal of probes Tf the instrument is used in a manner not in accordance with the equip ment design the operation of the dry well may be impaired or safety haz ards may arise This instrument is intended for indoor use only BURN HAZARDS DO NOT turn the instrument upside down with the inserts in place the inserts will fall out DO NOT operate near flammable materials Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution DO NOT touch the well access surface of the instrument The block vent may be very hot due to the fan blowing across the heater block of the dry well The temperature of the well access is the same as the actual display tem perature e g if the instrument is set to 375 C and the display reads 375 C the well is at 375 C For top loading dry wells the top sheet metal of the dry well may exhibit extreme temperatures for areas close to the well access The air over the well can reach temperatures greater that 200 C for high
35. he mating connector from the battery charger Attach the charger s AC plug into an AC supply of the proper voltage normally 100 to 125 VAC 50 60 Hz optionally 200 to 230 VAC 50 60 Hz The charger stops charging automatically when the battery is charged Certain precautions must be observed with the battery and charger These de vices can present safety concerns if misused or damaged 4 Quick Start Setting the Temperature 4 5 A WARNINGS e To avoid the risk of electric shock or fire do not use the charger outdoors or in a dusty dirty or wet environment e Ifthe cord case or plug of the charger is damaged in any way discon tinue its use immediately and have it replaced Never disassemble the charger e The battery may contain chemicals that are hazardous To avoid the risk of exposure to dangerous substances or explosion immediately discon tinue use of the battery if it leaks or becomes damaged Never allow the battery to be shorted heated punctured dropped or squashed e Store the battery where it will not come into contact with metal or fluids that might short circuit the battery and where it will be safe from exces sive temperatures e When no longer usable the battery must be recycled The battery may be returned to the seller for recycling Do not dispose of the battery in a land fill e Never dispose of the battery in fire as there is danger of explosion which may cause injury or property damage
36. hen the current scan rate setting is displayed 0 1 Scan rate in C min Press the up or down arrow to change the scan rate 7 Controller Operation Set point Resistance 7 4 7 5 7 6 New scan rate Press SET to accept the new scan rate and continue Press EXIT to cancel SET Accept scan rate Set point Resistance The set point resistance is the resistance the instrument is trying to make the control sensor achieve and is calculated in the firmware using the set point tem perature This value is not directly adjustable but is recalculated when the set point temperature is changed The set point resistance is used to perform a calibration adjustment using the Callendar Van Dusen R versus T curve fit see Section 10 Calibration Procedure The instrument must be at temperature and stable prior to taking the set point resistance reading The set point resistance can be displayed by pressing the SET and W simultaneously The set point resistance is displayed as follows SrES flashes for two seconds and then the whole number of the current set point resistance setting is displayed 88 Whole number portion of the set point resistance flashes for two seconds and then the fraction portion of the current set point resistance setting is displayed Fraction portion of the current set point resistance setting The set point resistance is 99 222 Secondary Menu Functions which are used less often ar
37. ings and will simply be ignored Backspace BS ASCII 8 may be used to erase the previous character A termi nating carriage return CR ASCII 13 is implied with all commands 8 Digital Communication Interface Interface Commands Table 3 Controller Communications Commands Command Command Returned Acceptable Command Description Format Example Returned Example Values Display Temperature Read current set point s etpoint S set 999 99 C or F set 75 00 C Set current set point to n s etpoint n s 100 10 to 122 C tlemperature n t 100 14 to 252 F Read temperature t emperature t t 999 9 C or F t 55 6 C Read temperature units u nits u u X u C Set temperature units u nits c f CorF Set temperature units to Celsius u nits c u C Set temperature units to u nits f u f Fahrenheit Read scan mode sc an SC Sc ON or OFF sc ON Set scan mode sc an on off sc on ON or OFF Read scan rate sr ate sr srat 99 9 C or srat 12 4 C min F min Set scan rate sr ate n sr 1 1 0 1 to 99 9 C 0 2 to 179 8 F Secondary Menu Read proportional band setting pr op band pr pb 999 99999 pb 15 9 Set proportional band to n pr op band n pr 8 83 0 1 to 30 C 0 2 to 54 F Read heater power po wer po po 999 9 po 6 5 duty cycle Configuration Menu Operating Parameters Menu Read High Limit hi imit hl hl 9999 hl 125 Set High Limit hl imit zn hl 100 50 to
38. ional Electrical Symbols s 1 Table 2 ACCESSOTIES vs ra e a a a hes 19 Table 3 Controller Communications Commands 37 Table 3 Controller Communications Commands continued 38 1 Before You Start Symbols Used 1 1 Before You Start Symbols Used Table 1 lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual Table1 International Electrical Symbols Symbol Description A AC Alternating Current U AC DC Battery Complies with European Union directives Mm MA DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Manual Important Information Off On OPPOUPH 9102S Dry well Calibrator User s Guide Symbol Description Canadian Standards Association Us OVERVOLTAGE Installation CATEGORY II Pollution Degree 2 per IEC1010 1 re CATI fers to the level of Impulse Withstand Voltage protection provided Equipment of OVERVOLTAGE CATEGORY II is energy consuming equipment to be supplied from the fixed installation Examples include household office and laboratory appliances C TIC Australian EMC mark Y The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC mark mum 1 2 Safety Information Use this instrument only as specified in this manual Otherwise the protection provided by the instrument may be im
39. ke South East Asia Pte Ltd Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace 03 16 The Comtech Lobby D 118502 SINGAPORE Phone 65 6799 5588 Telefax 65 6799 5588 E mail antngOsinga fluke com When contacting these Service Centers for support please have the following information available 1 Before You Start Authorized Service Centers Model Number Serial Number Voltage Complete description of the problem 2 Introduction Introduction The Hart Scientific 9102S Mid Range Field Calibrator is a small portable in strument designed for quick on site checks and calibration of thermocouple and RTD temperature probes This instrument is small enough to use in the field and accurate enough to use in the lab Calibrations may be done over a range of 10 C to 122 C 14 F to 252 F Temperature display and setpoint resolution are 0 1 degrees The instrument features e controlled temperature block with two calibration insert sleeves Rapid heating and cooling Prop stand e Handle strap e RS 232 interface capability e 12 Volt DC battery option Built in programmable features include e Temperature scan rate control e Eight set point memory e Adjustable readout in C or F The temperature is accurately controlled by Hart s digital controller The con troller uses a precision platinum RTD as a sensor and controls the well temper ature with transistor driven thermoelectric devices
40. ls on the surface which may damage the paint e tis important to keep the well of the calibrator clean and clear of any for eign matter Do not use fluid to clean out the well e Use a commercially available plastic or felt brush of appropriate diameter for a tight fit without any fluid to clean the well Complete the cleaning process by using cotton swabs and air to remove any debris e Inserts should be cleaned periodically For cold dry wells operating below 0 C you should always clean the inserts after operating the unit at or be low 0 Use emery cloth or other similar material to clean the outside of the inserts Ensure that the inserts are wiped clean of any debris loosened in the buffing process Periodic cleaning of the outside of the inserts en sures easy insertion and removal of the inserts from the well e The dry well calibrator should be handled with care Avoid knocking or dropping the calibrator e Do not drop the probe stems into the well This type of action can cause a shock to the sensor e hazardous material is spilt on or inside the equipment the user is re sponsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material e If the mains supply cord becomes damaged replace it with a cord with the appropriate gauge wire for the current of the instrument If there are any questions call an Authorized Service Center see Section 1 3 for
41. meter is indicated by dUPL Flashes for one second and then the serial duplex mode FULL Current duplex mode setting HALF New duplex mode setting Press SET to accept the new setting or EXIT to abort operation and skip to the next parameter in the menu Linefeed The final parameter in the serial interface menu is the linefeed mode This pa rameter enables on or disables off transmission of a linefeed character LF ASCII 10 after transmission of any carriage return The linefeed parameter is indicated by 31 9102S Dry well Calibrator User s Guide 32 7 12 7 12 1 LF Flashes for one second and then the serial linefeed setting NUS is displayed n Current linefeed setting OFF New linefeed setting Press SET to accept the new setting or EXIT to abort the operation and skip to the next parameter in the menu Calibration Parameters The operator of the instrument controller has access to a number of the calibra tion constants RO ALPHA and DELTA These values are set at the factory and must not be altered The correct values are important to the accuracy and proper and safe operation of the instrument Access to these parameters is available to the user so that in the event that the controller memory fails the user may restore these values to the factory settings The user should have a list of these constants and their settings with the in
42. over the range 10 C to 100 C Choosing a range of 50 to 100 C may allow the calibrator to have a better accuracy of maybe 0 2 C over the range 75 C to 105 C but outside that range the accuracy may be only 0 25 Calibration Procedure 1 Choose three set points to use in the calibration of the RO ALPHA and DELTA parameters These set points are generally 2 C 50 C and 100 C but other set points may be used if desired or necessary 2 Set the dry well to the lowest set point When the dry well reaches the set point and the display is stable wait 15 minutes or so and then take a reading from the thermometer Sample the set point resistance by holding down SET and pressing the W Write these values down as T and R respectively 3 Repeat step 2 for the other two set points recording them as T and R and T5 and R respectively 4 Using the recorded data calculate new values for the RO ALPHA and DELTA Compute DELTA A T T B T T 2 1 41 9102S Dry well Calibrator User s Guide 42 10 2 2 T 3 Measured temperature using thermometer Value of set point resistance from the instrument display Press SET and W at the same time where T and R are the measured temperature and set point resistance at 2 0 C T and R are the measured temperature and set point resistance at 50 0 C T and are the measured temperature and set point resistance at 100 0 C Compute
43. paired Refer to the safety information in the Warnings and Cautions sections below The following definitions apply to the terms Warning and Caution e Warning identifies conditions and actions that may pose hazards to the user e Caution identifies conditions and actions that may damage the instru ment being used 1 2 1 A WARNINGS To avoid personal injury follow these guidelines GENERAL DO NOT use this instrument in environments other than those listed in the User s Guide Inspect the instrument for damage before each use DO NOT use the in strument if it appears damaged or operates abnormally Follow all safety guidelines listed in the user s manual Calibration Equipment should only be used by Trained Personnel If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Before initial use or after transport or after storage in humid or semi hu mid environments or anytime the dry well has not been energized for more than 10 days the instrument needs to be energized for a dry out period of 2 hours before it can be assumed to meet all of the safety re quirements of the IEC 1010 1 If the product is wet or has been in a wet environment take necessary measures to remove moisture prior to apply 1 Before You Start Safety Information ing power such as storage in a low humidity temperature chamber operat ing at 50 degree centigrade
44. ps See Figure 1 and the inset of Figure 2 for pinout Power Switch The power switch is located on the back panel of the instru ment The switch is either on or off The on position is for normal operation The off position disconnects power to the entire unit Fan The instrument utilizes a variable speed fan Under certain circum stances the fan may turn off The fan shuts off at 100 C and above Slots at the top and around the corners of the instrument are provided for airflow The area around the calibrator must be kept clear to allow for adequate ventilation The air is directed from the front to the back Allow 6 inches of open space around the calibrator to allow adequate ventilation RS 232 The RS 232 serial port provides a means for connecting the instru ment to a computer or a printer using the included serial cable WARNING Always leave enough clearance in front of the calibrator to allow for safe and easy installation and removal of probes Front Panel 9102S Hart Scientific Figure 3 Front Panel Strap A strap is provided to aid the user in carrying the instrument in one hand Slide your hand into position and secure using the Velcro for a tight fit Be careful when carrying the instrument while using the strap as inserts can fall out of the wells when tipped forward Inspect the strap periodically for wear 5 Parts and Controls Accessories 5 3 Well Block Located on the middle of the front pan
45. rmation n Numeric data supplied by user 9 Numeric data returned to user x Character data returned to user When DUPLEX is set to FULL and a command is sent to READ the command is returned fol lowed by a carriage return and linefeed Then the value is returned as indicated in the RE TURNED column 38 9 Test Probe Calibration Calibrating a Single Probe 9 1 9 2 9 2 1 Test Probe Calibration For optimum accuracy and stability allow the calibrator to warm up for 10 minutes after power up and then allow adequate stabilization time after reach ing the set point temperature After completing operation of the calibrator al low the well to cool by setting the temperature to 25 C for one half hour before switching the power off Calibrating a Single Probe Insert the probe to be calibrated into the well of the instrument The probe should fit snugly into the calibrator probe sleeve yet should not be so tight that 1t cannot be easily removed Avoid any dirt or grit that may cause the probe to jam into the sleeve Best results are obtained with the probe inserted to the full depth of the well Once the probe is inserted into the well allow adequate stabi lization time to allow the test probe temperature to settle as described above Once the probe has settled to the temperature of the well it may be compared to the calibrator display temperature The display temperature should be stable to within 0 05 C degree for best r
46. strument manual A CAUTION DO NOT change the values of the instrument calibration con stants from the factory set values The correct setting of these parameters is important to the safety proper operation and performance of the in strument The calibration parameters menu is indicated by CAL Calibration parameters menu Press SET five times to enter the menu The calibration parameters menu contains the parameters Hard Cutout RO ALPHA and DELTA which charac terize the resistance temperature relationship of the platinum control sensor These parameters may be adjusted to improve the accuracy of the calibrator The calibration parameters are accessed by pressing SET after the name of the parameter is displayed The value of the parameter may be changed using the up or down arrow After the desired value is reached press SET to set the parameter to the new value Pressing EXIT causes the parameter to be skipped ignoring any changes that may have been made RO This probe parameter refers to the resistance of the control probe at 0 C The value of this parameter is set at the factory for best instrument accuracy The 7 Controller Operation Calibration Parameters 7 12 2 7 12 3 value ranges from 95 to 105 For values greater than 100 000 the display does not show the hundreds placement For values less than 100 000 the display shows the entire value The RO parameter is indicated by ro
47. t Ultimate stability may take 15 to 20 minutes more of stabilization time Changing Display Units This instrument can display temperature in Celsius or Fahrenheit The tempera ture units are shipped from the factory set to Celsius There are two ways to change to Fahrenheit or back to Celsius 1 Press the SET and A simultaneously The temperature display changes units or 1 Press the SET key three times from the temperature display to show 2 Press the A or W key to change units 3 Press SET to save the setting or EXIT to continue without changing the setting 21 7 Controller Operation Well Temperature 7 1 7 2 7 2 1 Controller Operation This chapter discusses in detail how to operate the dry well temperature con troller using the front control panel Using the front panel key switches and LED display the user may monitor the well temperature set the temperature set point in degrees C or F monitor the heater output power adjust the control ler proportional band and program the calibration parameters operating pa rameters and serial interface configuration Operation of the functions and parameters are shown in the flowchart in Figure 4 on page 24 This chart may be copied for reference In the following discussion a button with the word SET or EXIT inside a A or W indicates the panel button while the dotted box indicates the display reading Explanations of the button or
48. ters menu contains the High Limit parameter High Limit The High Limit parameter adjusts the upper set point temperature The factory default and maximum are set to 125 C 257 F The minimum setting is 50 C 122 F For safety a user can adjust the High Limit down so the maximum temperature set point is restricted 29 9102S Dry well Calibrator User s Guide 30 7 11 7 11 1 HL Flashes HL and then displays the setting 125 i Flashes the current value and then displays the value for 125 i Current High Limit setting Al 100 New High Limit setting To accept the new setting press SET Press EXIT to continue without stor ing the new value SET Accept the new High Limit setting Serial Interface Parameters The serial RS 232 interface parameters menu is indicated by SErL i Serial RS 232 interface parameters menu Press SET to enter the menu The serial interface parameters menu contains parameters which determine the operation of the serial interface The parame ters in the menu are BAUD rate sample period duplex mode and linefeed BAUD Rate The BAUD rate is the first parameter in the menu The BAUD rate setting de termines the serial communications transmission rate The BAUD rate parameter is indicated by bRUd Flashes bRUd for one second and then displays the setting O AO e400b Current BAUD rate The BAUD rate of the serial communications may be programmed to 30
49. tware e 3102 3 Insert 3 16 e 3102 4 Insert 1 4 e Insert Removal Tool Set up Place the calibrator on a flat surface with at least 6 inches of free space around the instrument Always leave enough clearance in front of the instrument to al low for safe and easy insertion and removal of probes The prop stand may be swung down to raise the front of the instrument from a horizontal position Plug the power cord into a grounded mains outlet Observe that the nominal voltage corresponds to that indicated on the calibrator Turn on the power to the calibrator by toggling the power switch on The fan should begin quietly blowing air through the instrument and the controller dis play should illuminate after 3 seconds After a brief self test the controller should begin normal operation If the unit fails to operate check the power connection The display should show the well temperature and the well heater will bring the temperature of the well to the set point temperature After using the calibrator allow the well to cool by setting the temperature to 25 C and waiting 1 2 hour before turning the instrument off AC Power Operation Plug the dry well power cord into a mains outlet of the proper voltage fre quency and current capability Refer to Section 3 1 Specifications for the power details Turn the dry well on using the switch on the rear panel The dry well will turn on and begin to heat to the previously programmed tempera
Download Pdf Manuals
Related Search