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Peak Performer 1 RCP (910- Series) User Manual

1. Peaks quantified using the Variable method is denoted with a V in the last column of the data report Page 80 Peak Performer 1 Users Manual 7 7 Chromatographic Stabilization of the Analyzer When Injecting O2 Samples O2 samples present particular challenges for the RCP PP1 analyzer due to the extreme reactivity of 100 O2 with any possible carbon source even at relatively low temperatures via these basic reactions 2C O2 gt 2CO C Oo gt CO Potential carbon sources include residual carbon within stainless steel tubing and valve bodies polymeric valve components and column packing materials CO produced from these sources can be detected in the RCP and create a wide variety of symptoms e Unstable detector baseline e False positive peaks when measuring pure O2 samples e Difficult small peak quantification e Transient peaks in the chromatogram The chromatographic parameters for the RCP O2 analyzers are adjusted to minimize this reactivity undergoing an extensive set of proprietary processes for stabilizing the packing materials for O2 service Do not use commercially available columns intended for Inert gas sampling in an RCP O2 PP1 the detection limit of the analyzer will be severely compromised RCP PP1 False CO Peaks During O2 Conditioning 2000000 1800000 O2 Upset At the Start of O2 Conditioning 1600000 After 0 3 Hours of O2 Conditioning 1400000
2. Ww Baseline Print Exit Figure 39 Baseline Selected Page 49 Peak Performer 1 Users Manual BE Chrom Viewer 2003 12 224 1335 chm fl x File Viewer ATTEH 46 SPAH 180 4 F Open Saved BaseLine Print Exit 4 t Figure 40 Baseline Deselected The File menu offers the following commands j Funetion avert Opens a chromatogram file Use this command to open and load the chromatogram data for display Save the chromatogram data that is currently displayed BaseLine Enables display of compound name and integration baseline information Exit window cr Pre O 5 5 4 3 Viewer Menu on the Chrom Viewer Taskbar The Viewer menu selection returns the user to the original Viewer window See Figure 36 Page 50 Peak Performer 1 Users Manual 6 0 Communication Port Protocol and Formats There are two serial communications ports on the rear of the PP1 COM1 and COM2 are multifunctional serial ports 6 1 COM1 COM2 Port and Cable Wiring The cable connected from the PC to the PP1 should be a straight through wired 9 pin M F cable attached to the PC s COM port and the PP1 s COM port Figure 42 is the minimum cable configuration PC MALE PP 1 FEMALE 9 Pin Cable from PC to PP 1 Figure 41 COM Cable Wiring 6 2 Port 1 Protocol There are two COM1 output formats PeakView and Detector Proper selection of protocol is determined by the application in use on the host computer 6 2
3. After 0 7 Hours of O2 Conditioning 1200000 1000000 800000 Detector Signal Vout CO Peak 600000 400000 200000 Time seconds Figure 68 False CO Peaks Created by Free Carbon on the Column Materials The chromatograms overlaid in Figure 68 show one of the effects of 100 O2 on commercially available column packing materials A false CO peak has been created by carbon reactions at the head of the column set over repeated injections of O2 the false CO peak diminishes in amplitude as this source of free carbon is depleted Page 81 Peak Performer 1 Users Manual These chromatographic improvements occur as the free carbon on the internal surfaces of the analyzer system is consumed Many of the sources i e polymeric valve seals do not become carbon free over time however the available surface carbon can become greatly diminished with continuous exposure to O2 Free carbon may reside within the main body of materials in the system and diffusion forces may bring this carbon load to the surface again during idle analyzer times Consequently it is not unusual to see these instabilities reappear in a previously clean system after extended periods of inactivity The new free carbon can again be diminished by continuous exposure to O2 CAUTION Under certain circumstances the reduction of the analyzer surface carbon may be accelerated with above normal operating temperatures and continuous exposure to O2 As
4. As seen in Figure 61 it is much simpler to identify the peak maximum on the convolved baseline Convolution functions work best when the convolving peak filter width closely matches the expected chromatographic peak width Chromatographic peak width can vary significantly depending upon column selection detector characteristics sample loop size etc Consequently there are several different convolving Page 75 Peak Performer 1 Users Manual peak widths available in the PP1 s mathematics package FIt 1 is the narrowest filter width Fit 8 is the widest filter width NOTE Final determination of the optimum filter width is best performed by re processing chromatograms representing typical peaks 7 6 1 Peak Quantification Fixed Mode When the PkHgt variable is set to zero the Fixed Mode of detector baseline is enabled In this mode the normal detector baseline is calculated very simply Peak start time PkKCen LW Peak end time PkCen RW All other possible aspects of peak start and end time determination are disabled and the normal detector baseline is rigidly established only by the Peak Database parameters Figure 62 Baseline as Established in Fixed Mode Peaks quantified using this method are denoted with an F in the last column of the data report 7 6 2 Peak Quantification Forced Baseline Mode The Forced Baseline Mode is enabled when the maximum detector signal value at the
5. J Viewer 2013 12 U5 X File Start Stop Chrom View Event Info Upload Run Time Stream H2 oO N2 08 28 1 2898 1 0067 4 10193 3 08 36 1 2769 4 9905 0 10088 9 08 43 1 2999 6 9938 7 1006 1 08 51 1 2662 8 9965 7 10070 5 08 38 1 2019 1 10051 1 10225 8 09 06 1 275 9 2 0 0 09 13 1 0 0 0 0 2 0 09 21 1 0 0 0 0 0 0 09 28 1 433 7 1419 0 1422 6 09 36 1 493 9 1393 4 1403 7 Figure 35 Viewer screen showing concentration data There are eleven individual error conditions that can cause the Viewer Line to appear red Detector Communication Error Temperature Zone Out of Range Temperature Zone Disable Detector Zeroing Target Error Vlamp Low Voltage Out of Range RCP Analyzers Only FID Flame Temperature Out of Range FID Analyzers Only Event Program Load Error Stream Selector Program Error System Parameters Corrupted Parameter Change Update Needed Detector Power Off PDHID amp TCD only Page 46 Peak Performer 1 Users Manual 5 5 1 2 Viewer Line Details Window This window ts displayed by double clicking on any time stamp on the Viewer window The screen provides detailed analytical information about the run selected 12 Viewer Details 2013 12 05 08 5 am Print Name H2 02 N2 rea Te se 744 JC E Len wan ceo E8 ensued Ae 157103 Response racior 50 ee wah Anasi Varane NA Flame Temperature Run Type Stream 1 System Alarm Analysis Inde
6. p Figure 78 UV Lamp Adjustment UV Lamp dims after warming up and why it does this why UV lamps fail lensing affects of rotation driver failure symptoms with chromatograms Page 94 Peak Performer 1 Users Manual 9 6 RCP UV Lamp Replacement The mercury vapor lamp used in the photometer has a nominal life of 5 000 continuous hours Lamp replacement is indicated when excessive noise is observed on the high sensitivity ranges or low Vlamp is verified Other causes of low Vlamp include the following 1 Impurities in carrier gas 2 Contaminated column 3 Contaminated valves tubing etc One means of checking the noise source is by turning the detector heater off and evaluating the detector noise level after the unit has cooled If noise persists lamp replacement is recommended The procedure for lamp replacement is as follows Power the analyzer OFF Remove the analyzer top cover Unplug the lamp connector 2 pin white plastic Molex from the detector control board Unscrew the 2 thumb nuts securing the lamp enclosure cover on the detector s right hand side Remove the lamp enclosure cover Feed the connector and wire back through the opening in the lamp enclosure Loosen do not remove the 2 thumb nuts securing the lamp in the block Pull up on the old lamp wire to remove from the lamp block Insert the new lamp base fully into the block It should not require forcing There is no specific orien
7. A slave device performs the command specified in the packet when it receives a request packet with the slave address field matching its own address A response packet generated by the slave has the same value in the slave address field Function Field The function field of a Modbus request packet is one byte in length and tells the addressed Slave which function to perform Similarly the function field of a response packet tells the master what function the addressed slave has just performed Table 2 Modbus Functions Supported by the PP1 as Slave on page 5 lists the Modbus functions supported by the PP1 when acting as slave Data Field The data field of a Modbus request is variable length and depends on the function This field contains information required by the slave device to perform the command specified in a request packet or data being passed back by the slave device in a response packet Data in this field is contained in 16 bit registers Registers are transmitted in the order of high order byte first low order byte second Example e A 16 bit register contains the value 62BE Hex four ASCII characters High order byte 62 Hex two ASCII characters Low order byte BE Hex two ASCII characters This register is transmitted in the order 6 2 BE four ASCII characters Error Check Field LRC Checksum two ASCII characters Error Check Field In Modbus ASCII mode an 8 bit Longitudinal Redundancy Check LRC algorithm is used
8. After a 5 10 minute detector re equilibration period samples may be run Normal operating temperatures vary with specific application Consult the Final Test Data for special settings special reconditioning requirements etc for your application 3 3 Detector Conditioning CAUTION The maximum detector operating temperatures for the RCP is AN 295 C The RCP detector does not normally require conditioning treatment however it does require 18 to 24 hours at normal operating temperature to achieve optimum stable performance Normal detector operating temperature for the RCP is 265 C although operating temperatures vary with the specific application See Section 8 for details concerning the effects of operating parameters temperature and flow on RCP detector performance A Normal life of the scrubber is 24 months under continuous use Replace and of properly in accordance with local and federal regulations 3 4 Sample Analysis Verify that sample is flowing freely through loop exit flow from the rear SAMPLE OUT port should be 30 to 120 cc min Press the ESC or PAGE commands as needed to navigate to the RUN screen If multiple sample runs are desired press the SINGLE command to toggle to CYCLE repetitive analysis mode Press the RUN key to initiate analysis the P1 event program will be loaded automatically and executed Allow the analyzer to fully execute the event prog
9. Peak identification tag Expected peak retention time in seconds Typical time span measured from the start of the peak s baseline rise to the peak apex PkCen in seconds Typical time span measured from the peak s apex PkCen to the end of the peak s baseline decline in seconds Total tolerance window in seconds for assignment of a Name to a quantified chromatographic peak The tolerance window is centered upon the PkCen value Variable for establishing the cross over point in peak detection modes Chromatographic peaks higher than this parameter will be quantified using the Variable mode heights peaks with height less than or equal to PkHot will be quantified using the ForceB mode Convolution filter value expressing the overall peak shape Flt 2 is recommended for sharp narrow peaks such as H2 and FIt 8 is recommended for broad peaks Valco Instrument Company Inc www vici com Peak Performer 1 Users Manual Table of Contents 4 1 4 1 4 1 4 2 4 1 4 2 1 4 2 1 4 2 2 4 2 3 4 3 1 4 3 2 4 3 2 1 4 4 Page 4 Introduction Installation Considerations Unpacking Instructions General Considerations Electrical Connections Rack Mount Specifications Gas Supplies and Connections Carrier Gas Supply Carrier Gas Purity Carrier Gas Purity Requirements Carrier Gas Connections Actuator Gas Supply Sample Supply External Calibration Gas Supply Second Sample Ga
10. it is necessary to maintain pure gas flow to the detector This pure gas flow is provided by an additional branch on the internal carrier gas main line feeding other ports on the valve Ultra high purity flow control components can be bulky and expensive To diminish installed cost of flow control components Peak has chosen a different method based upon flow restrictors to create a flow divider A typical flow divider is shown in Figure 49 CARRIER GAS MAIN LINE FLOW ADJUSTMENT NEEDLE VALVE MAIN FLOW LIMITER 110 sccm 60 PSIG EXCESS FLOW VENT TO DETECTOR DETECTOR BALANCE RESTRICTOR Figure 49 Flow Divider Schematic The gas flow path to the detector is extremely clean and free of moving parts Gas passing from the main flow limiting restrictor can be split to follow both gas paths Studying the schematic it can be seen that the detector flow can be adjusted by changing the amount of gas that is allowed to exit via the excess flow vent as more gas exits the excess flow vent less gas is available to flow towards the detector The controlling needle valves for detector flow rate and column venting are co mounted in the chassis for convenience see Figure 60 The detector flow control needle valve is color coded red Differences in DETECTOR flow during normal and venting valve positions can be expressed as shifts in detector baseline Careful adjustment of the detector flow control needle valve will enable the ope
11. outlet lt 10ppt Expected Life Infinite Regenerable Page 13 Peak Performer 1 Users Manual 2 5 1 2 Gas Purity Requirements Nominal f Oem lt 100 ppt total contaminants 60 psig 100 sccm Carrier Argon Helium or Air Clean Dry Air lt 10 ppm actuator aA HO 70 psig Heated reactive metal getters can also be used for generating the specified carrier gas purification Cold metallic getters and absorption getters do not reliably remove all common critical bulk gas contaminants 2 5 1 3 Carrier Gas Connection The PP1 carrier gas connection utilizes a 1 16 female VICI bulkhead labeled CARRIER IN on the front or rear panel The PP1 RCP has an internal carrier gas pressure regulator for final gas carrier flow control 1 Connect carrier gas supply gas N2 Ar He or Air to the carrier bulkhead and set the source regulator to the setting shown in the final test data 2 The internal carrier regulator of the RCP PP1 are pre set at the factory using this external pressure 3 Verify detector flow with a flow meter attached to the mercury scrubber outlet at the rear panel is approximately 20 sccm 4 Verify the BYPASS OUT is flowing approximately 25 sccm Carrier flow exiting the internal combustor is split with a portion of the flow passing through a gas sampling valve another portion of the carrier flow passing through a restrictor tube terminating at the location of the detector inlet and
12. 08302 manufactured by Inland International www inland products com 2 each USB to DBY RS232 Adapter SIIG Inc USB to Serial Adapter Model US2308 Part JU CB1S12 manufactured by SIIG Inc www siig com Comes with installation software 2 each DBY Extension Cable DB9M to DB9F wired straight through 10 feet long GQ Cables 10 Mouse Keyboard Extension DB9M to DB9F Part M05 103 es POON o000 oooo Figure 88 Multiple Analyzers Connected to a Single Computer For Using Viewer Software Installation of Multiple Analyzers via USB 1 Connect DB9M to DBYF extension cables to analyzers 2 Power up analyzers do not heat 3 Set Port 1 Protocol on the analyzers to Viewer Page 106 Peak Performer 1 Users Manual 4 Insert 4 port USB hub into computer USB port your computer should detect the connection and automatically install any required Windows drivers for USB hubs Connect the USB to DB9 adapters to the DB9 extension cables Insert first USB to DB9 adapter into 4 port USB hub your computer should detect the connection and launch the hardware installation program 7 Insert USB to DB9 adapter INSTALL CD in CD drive it will launch automatically if autoplay in enabled on your computer 8 Follow installation instructions that come with USB to DB9 adapter I confirm that it is okay to click the Continue anyway box 9 Your computer may prompt to install the USB to DBY adapter a
13. 1 2 GHz 20 GB 256 Mb RAM 1 USB port Windows XP or Windows Vista Windows 7 Windows 8 USB to DB9 RS232 Adapter Maker Gigaware Model 26 949 or equivalent DB9 Extension cable DB9M to DBYF wired straight through 10 feet Optional USB 4 port self powered Hub Inland 08302 or equivalent 5 2 Installing the Peak View Software 1 Place Peak View software CD ROM disk into CD ROM drive 2 If Autorun is enabled follow the installation screen prompts 3 If the CD ROM does not automatically launch select SETUP from CD ROM disk 4 The installation software will auto install the Viewer in a folder under the PC s main drive as the default The user has options from the installation process to create a new folder and install in a new location 5 3 Starting the Peak View Software 1 Double click the Peak View icon on the Desktop or 2 Select START button on the bottom Taskbar 3 Select PROGRAMS select PEAK VIEW and double click to launch move to Peak View 5 4 COM1 COM2 Port and Cable Wiring The cable connected from the PC to the PP1 should be a straight through wired 9 pin M F cable attached to the PC s COM port and the PP1 s COM port See Section 6 for details on communications protocols Page 42 Peak Performer 1 Users Manual 5 5 Viewer Software Window The Viewer window shown in Figure 33 shows the main Viewer screen with a RED DOT in the upper right corner This RED DOT s
14. 1 COM 1 Port Settings The RS 282 settings for COM 1 port are 38400 baud rate 8 bit data 1 stop bit and no parity These settings are fixed and are not user selectable 6 2 2 PeakView Output Columns Format in CSV files The PeakView software stores information in a common text format Comma Separated Variable CSV CSV files can be opened in common spreadsheet applications for further analysis The column format in the CSV files are A Data Time B Run Mode C Analysis Buffer Number and Stream Number D General Error Alarm E RCP Lamp Voltage or FID Flame Temperature F Compound Name G Retention Time H Left Point Offset Right Point Offset J Area K Response Factor L Processing Flag Page 51 Peak Performer 1 Users Manual Columns F to L are repeated for M to S T to Z and AA to AG for the next five compounds listed in the Calibration Data Base 6 2 3 Detector Output The detector output of the COM1 interface currently supports one command from a host computer system This command remotely starts a RUN The PP1 system processes the external start command only if the analyzer is in IDLE mode Not running asample Upon receipt of the external start command the PP1 performs the following functions Sets system run mode to SINGLE RUN mode Loads event program P1 Starts a Single Run Sends Detector Signal Data stream i e Vout reading to the COM1 port At the end of the run the PP
15. 100 1000 10000 Blended Concentration ppb Figure 23 Left and Right Peak Width as a Function of Concentration e Total peak width LW RW is primarily a function of sample loop unloading e Larger sample loops require a long time period to fully inject e The relative values of LW and RW are dictated by the skew factor of the peak e Peaks need about 25 30 data points minimum to be well measured at 5 data points per second this means total peak width should be greater than 6 seconds Therefore it is recommended to use a Substantial calibration peak concentration to facilitate easy LW and RW measuremenis 4 4 2 Analysis Screen Button Function ie Moves the cursor upwards J Moves the cursor downwards Edit Allows the user to enter new peak compound name or analysis parameters Page Advances the user to the next screen Page 35 Peak Performer 1 Users Manual Analysis Averaging When enabled the last four chromatograms are averaged data point by data point to create a composite chromatogram which is then quantified using normal techniques Analysis averaging does not average concentration data values From acold start it will take approximately 30 minutes to obtain the best averaged results 4 5 Event Program Editor Screen The Event Program Editor screen stores critical information regarding pre programmed instrument actions needed to perform an analysis Figure 24 Event Editor Screen
16. 8 Stop Bits 1 34 Click OK box to save these settings 35 Communications settings for that USB to DB9 adapter will be saved in the folder and will be used automatically every time you launch the Viewer software in that folder 36 Viewer should automatically connect to the other analyzer At this point you should have two PeakHost windows open connected to the different analyzers If you run the analyzers the chromatographic data for each analyzer will be automatically stored in the folder that matches where the Viewer exe file is stored Page 108
17. Old to New DC Power Supply Transfer the two cable assemblies from the old power supply to the new supply Install the new DC Power Supply by reversing the disassembly sequence After installation and power up it may be necessary to re adjust the contrast on the front panel display it may be too light or too dark Page 103 Peak Performer 1 Users Manual 9 13 Adjusting the 5 Volt DC Supply Adjust this potentiometer so that the volatge is between the RED and BLACK wires at 5 1 to 5 2 VDC J14 J3 AC DET AC CAP OVEN oh cam Please Note Adjustments may not be applicable for newer analyzers Please contact your local representative for details Figure 86 Adjusting the 5 Volt DC Supply Page 104 Peak Performer 1 Users Manual 9 14 Replacing the Lamp Driver Printed Circuit Board J Nig LOPOZI LOK wi E gt YO OZOO t AE x R lt Es ad 59 Aiddng samog ywoz Agi 2 yi hatin saat 48 122g 4 2 MHE PE zi ee gt SPRIVER a Figure 87 Location of the Lamp Driver PCB Page 105 Peak Performer 1 Users Manual 9 15 COM 1 Connections on Multiple Analyzers to a Single Computer Equipment 1 each Computer 1 2 GHz 20 Gb Hard drive 256 Mb RAM CD R drive with at least 1 USB port Dell Inspiron 8500 laptop or equivalent Operating System Windows XP Home Edition v2002 Service Pack 1 1 each USB Hub Inland 4 Port USB Hub Self powered Stock
18. SUPPLY QO Sa l a FLAY RESTRICTOR 30 60 scom ATMOSPHERIC PRESSURE Figure 7 Sample Supply Flow Schematic 2 5 3 1 External Calibration Gas Supply Certified calibration standards must be connected periodically to the PP1 for verification of analyzer response When using a mobile calibration gas source such as high pressure cylinder the plumbing arrangement shown in figure 7 is recommended The calibration source can be connected to the SAMPLE IN port on the analyzer front panel or alternatively make sure the front panel jumper between SAMPLE OUT and SAMPLE IN is installed and connect the calibration source to the rear panel SAMPLE IN port The SAMPLE OUT port must be unrestricted when using either method Page 15 Peak Performer 1 Users Manual 2 5 3 2 Second Sample Gas Supply Peak Labs offers an optional second sample inlet stream for most analyzers Connection to the SAMPLE 1 IN and SAMPLE 2 IN ports should replicate Figure 7 Sample lines are normally attached to the rear panel of the instrument Attach sample or span gas lines to the SAMPLE IN ports on the rear panel The SAMPLE OUT ports must be unrestricted 2 5 4 Calibration Gas Connection for Analyzers Equipped with the Optional Internal Span Gas Blender Peak Labs offers an optional internal span gas blender for most analyzers Connection to the SPAN GAS IN port should replicate Figure 8 Nominal inlet soan gas pressure is 50 psig and flow through the internal blender i
19. a general rule O2 conditioning temperatures are much lower than standard conditioning temperatures the high reactivity of pure O2 with polymers at elevated temperatures can easily destroy the valve seals and column packing materials If O2 is being sampled do not exceed 180 C for the RCP Column temperature zone and 295 C for the RCP Detector temperature zone With proper conditioning methodology the column can be scrubbed of free carbon and accurate results obtained RCP PP1 Stabilization to Pure O2 Samples 2500000 The First Pure O2 Sample After 2 Pure O2 Samples After 3 Pure O2 Samples After 4 Pure O2 Samples 2000000 1500000 1000000 Detector Signal Vout 500000 0 50 100 150 200 250 Time seconds Figure 69 A Sequence of Pure O2 Sample Chromatograms Showing Improvements With Additional Injections Page 82 Peak Performer 1 Users Manual Figure 70 overlays several O2 chromatograms over a period of 0 5 hour The overall O2 upset undergoes a significant shift as more O samples are taken e Decreasing magnitude of the O upset e Improved baseline stability at the CO peak retention time Each of these chromatographic changes will directly enhance the lower detection limit of the analyzer by making it easier to clearly define peak start end points and peak magnitude The chromatographic improvements illustrated in Figure 70 originate with the spontaneous reaction dynamics of mercuric o
20. analyzer Peak Labs recommends the installation of a high quality on line or double conversion type of uninterruptible power supply UPS Be sure to mount the analyzer in an area of adequate ventilation and make sure the cooling fan inlet is unobstructed The operating environment for the PP1 analyzer should be maintained between 15 C and 30 C 2 4 Rack Mount Specifications The PP1 is designed for mounting in a standard 19 instrument rack The analyzer occupies 4U 6 9 of panel height 26 in depth Rack retaining flanges provided with the Peak rack mount kit attach via the analyzer top cover to provide secure connection to the instrument rack rails Peak recommends use of high quality 26 full extension ball bearing slides for instrument mounting such as Jonathan QD375 26 or equivalent OPTIONAL SYRINGE ON PORT T a Figure 2 Rack Mount Front View with Dimensions Page 9 Peak Performer 1 Users Manual Co oo og oe Figure 4 Rack Mount Top View with Dimensions Page 10 Peak Performer 1 Users Manual 2 5 Gas Supplies and Connections All plumbing connections are 1 16 female VICI bulkhead fittings The Peak Performer 1 is shipped with tubing and fittings required to connect the analyzer to gas sources Replacement materials are available from Peak Laboratories or may purchased directly a Standard gas fittings are 1 16 VICI compression fittings VICI P N ZN1 amp ZF1
21. b Supply tubing is 1 16 O D x 0 03 I D cleaned and baked T300 stainless steel tubing Q O g g cu Figure 5 Rear View of PP1 Some Fittings May Not Be Present on Certain Models Oxygen Nitrogen V Argon Helium Hydrogen Samples PN2 ie i hat CDA W A Figure 6 RCP PP1 Gas Supply Schematic Page 11 Peak Performer 1 Users Manual 2 5 1 Carrier Gas Supply The instrument will accept a variety of carrier gases including Ne Ar He or Air CAUTION Oxygen is never a suitable carrier or actuator supply gas Oxygen is highly reactive and many pneumatic components contain greases and oils that combust spontaneously when exposed to oxygen Consult the test data shipped with the analyzer in CD format for carrier gas details specific for your analyzer Commonly the PP1 will utilize highly purified nitrogen as the carrier gas supply and nitrogen is considered the best multi purpose carrier gas However the best carrier to use approximates the sample matrix i e nitrogen carrier for analysis of impurities in nitrogen Matching the carrier gas to the sample will prevent upsets caused by the elution of high concentration sample balance peaks For optimum performance the carrier gas must match the balance gas of your analytical sample although other carrier gases can be used for specific applications with factory assistance PLEASE CONSULT THE TEST DATA ATTACHED TO YOUR A
22. is a simple and reliable system capable of following rapid trends in component concentration in laboratory field and process gas applications The Peak Performer 1 has a fully integrated stand alone microprocessor operating system Key functions of the operating systems include detector and temperature control data collection and analysis and operator data interface Temperature range 50 C gt 295 C 160 watts maximum Page 7 Peak Performer 1 Users Manual 2 0 Installation Considerations 2 1 2 2 2 3 Unpacking Instructions Remove the Peak Performer 1 from the packing material or traveling case taking care to not scar the exterior surfaces of the analyzer set the analyzer on a firm even surface and remove the protective plastic wrap Each analyzer ships with adequate supplies for installation Be certain to remove the installation accessories tubing power cord compression fittings etc from the packing materials Remove the sleeve containing the Certificate of Conformity and Installation CD from the analyzer top panel All shipping materials are reusable please recycle these materials appropriately General Considerations e Analyzer size is 20 L x 17 W x 7 H e Maximum operating environment for the PP1 analyzer is 30 C e Minimum operating environment for the PP1 analyzer is 15 C e Power consumption is 160 watts maximum e Fuse size is 2 5 ampere 250 VAC 5 x 20 mm SLO BLO e Fre
23. off carrier after cool down time and plug the CARRIER IN port on the rear of the analyzer Power off analyzer Cap the SAMPLE IN SAMPLE OUT and ACTUATOR IN ports Plug the BYPASS OUT port on the front panel Ensure that the front jumper tube is connected between SAMPLE IN and SAMPLE OUT Package the analyzer in a hard cover carrying case or comparable shipping container If cardboard packaging is used Peak recommends double boxing of the analyzer using at least 2 of resilient packing material between the inner and outer box walls Page 21 Peak Performer 1 Users Manual 4 0 Peak Performer Operator Interface SET UP MAIN SCREEN PAGE KEY TREND amp ANALOG OUTPUT SCREEN PAGE KEY CALIBRATION DATABASE SCREEN PAGE KEY ANALYSIS DATABASE C SCREEN PAGE KEY EVENT PROGRAM EDITOR U SCREEN PAGE KEY eC AAEE EA STREAM SELECTOR PROGRAM EDITOR t SCREEN PURCHASED OPTION ri PAGE KEY nn eee eee MONI DATA UPERRISAT CHROMATOGRAM MANUAL KEY DISPLAY KEY SCREEN pe SCREEN _ Sig tenr otras se ee ESE P ERTEN E ii F MANUAL CONTROL i DISPLAY CONTROL PAGE KEY SCREEN SCREEN ee E E EE TAER CAE T en EEE na Na rte Ree ne Se oe eee eee 2 SET UP MAIN SCREEN Figure 10 Software Menu Structure 4 1 Set up Screen The Set up screen is multi functional Different command buttons appear at the bottom line of the screen dep
24. outlet 8 4 Bed Lifespan With constant cell heating the effective life of the mercuric oxide bed is approximately two years High concentration samples gt 10 ppm combined with large sample volumes and high detector temperatures will deplete the reaction bed much faster than sub pom concentration level samples Serial dilutions gas blenders or small sample volumes can help to extend the life of the bed to its maximum potential Contamination of carrier gases with reactive compounds such as sulfides chlorides and aromatics will irreversibly impair reactivity and will necessitate bed replacement and possibly detector overhaul When using columns that permit the passage of such compounds care should be taken to bypass the detector as these compounds elude Page 88 Peak Performer 1 Users Manual 9 0 Analyzer and RCP Maintenance and Service Procedures Figure 75 Chassis Overview PEAK PERFORMER 1 RCP COMPONENT LAYOUT VALVE 1 10 port MCPU PCB LCD TOUCHSCREEN ASSEMBLY REGULATOR COLUMN OVEN and COVER RCP LAMP DRIVERPCB ASSEMBLY AND COVER MURCURY VAPOR SCRUBBER UV LAMP REAR PANEL PCB ASSEMBLY INCLUDES MAIN DC POWER SUPPLY 10 FLOW CONTROL NEEDLE VALVE ASSEMBLY 11 RCP DETECTOR ONDUN Page 89 Peak Performer 1 Users Manual 9 1 Peak Performer 1 System Block Diagram Detector Module e m o o i o a a E D l l TOCO E C R E E N Figure 76 PP1 Functional Block and Intercon
25. second time do not cancel it is best to let the computer re install the software again 10 Create a new Desktop folder for each analyzer that you will connect with a USB to DB9 adapter Be sure to give the folders a name that relates to the analyzer that you will connect to that adapter 11 Copy the Viewer exe files into each new folder Open one of the new folders and select the Viewer exe file 12 Double click to launch a Viewer window 13 Go to Windows Device Manager Settings gt Control Panel gt System gt Hardware gt Device Manager to see what the port assignments on your computer are 14 In the Device Manager click on Ports to expand heading so you can see what COM port number your computer gave to the USB to DB9 adapter 15 Note which COM port number is now assigned to the new USB to Serial RS232 Port adapter it s COM4 on most computers 16 Go back to the Viewer window 17 Under File on toolbar select Port Settings 18 Enter COM number assigned to first USB to DB9 adapter probably COM4 check that Baud Rate 38400 Data Bits 8 Stop Bits 1 19 Click OK box to save these settings 20 Communications settings for that USB to DB9 adapter will be saved in the folder and will be used automatically every time you launch the Viewer software in that folder 21 Leave the first Viewer window open 22 Insert second USB to DB9 adapter into USB hub your computer should detect the connection a
26. to compute the checksum byte The checksum field enables the receiving device to determine if a packet is corrupted with transmission errors The sending device calculates the checksum 8 bit value based on every byte in the packet using the LRC algorithm The calculated value is inserted in the error check field The receiving device performs the same calculation without the error check field on the entire packet it receives The resulting value is compared to the error check field Transmission errors are indicated when the calculated checksum does not equal the checksum stored in the incoming packet The receiving device ignores a bad packet To calculate the LRC 1 Add up all the data bytes in the message before converting to ASCII and without the initial colon and final CR LF 2 Throw away any bits that carry over 8 bits 3 Make the result negative by twos complement to get the LRC byte 4 Convert from the 8 bit hex value to two ASCII characters Page 55 Peak Performer 1 Users Manual 6 4 3 Packet Communications The PP1 analyzer only supports two Modbus functions Read Holding Registers and Preset Single Register Function codes 03 06 respectively Modbus Function ModBus Description Function Description Read Holding Registers ae the current value in one or more holding registers from the 08 Preset Single Register Write a specific values into a single holding register to the PP1 Table 1 Modbus Functions Suppo
27. 0 psig Verify that sample is flowing freely through loop exit flow from the rear SAMPLE OUT port should be 20 to 120 cc min Verify BYPASS OUT flow gt 20 cc minute Verify the analyzer is connected to the correct line voltage supply Energize the main power switch located to the right of the power cable see Figure 1 After energizing the instrument will display the MAIN screen in the IDLE state Set date and time 11 12 13 Press command three times to position the cursor in the middle 1 3 of the screen Press the HEAT command once to activate heater zones Allow the 4 6 hours for the analyzer to thoroughly stabilize the heated zones Page 17 Peak Performer 1 Users Manual 14 After temperature stabilization 15 Verify that the RCP Vlamp reading is greater than 1000 mV and less than 2450 mV 16 If the analyzer has been stored or idle without carrier gas flow for more than a few days consider column conditioning as described in Section 3 2 17 Press the PAGE command 4 times to reach the RUN SCREEN 18 If automatic sample cycles are desired press the SINGLE command once to change the setting to CYCLE 19 To initiate sampling press the RUN command once The P1 event program will be automatically loaded and run NOTE To display concentration data only press the upper right corner of the RUN screen once this will hide the chromatogram and display data in larg
28. 00000 1000000 100000 10000 1000 100 1000 10000 Blended Concentration ppb Figure 73 Typical Area Response Curve for Hydrogen Showing Linear Range CO Area Response asa Function of Concentration SN 068 100000000 10000000 1000000 100000 10000 1 10 100 10000 Blended Concentration ppb Figure 74 Typical Area Response Curve for Carbon Monoxide Showing Linear Range Page 87 Peak Performer 1 Users Manual The CO oxidation reaction proceeds more completely at all normal detector temperatures and therefore exhibits more uniform response to temperature changes At detector operating temperatures above 220 C however there are other competitive reactions that tend to slightly reduce bed response from its maximum The nominal detector operating temperature of 265 C has been selected on a basis of compromise of several of these factors 8 3 Flow Rate Effects Carrier gas flow rate through the bed can affect both the Hgv concentration in the cell as well as the degree of oxidation gas reaction completion by affecting the residence time of the compound within the HgO bed In the case of H2 the analyzer response is roughly inversely proportional to carrier flow rate It should be noted that detector noise and drift increase as detector flow rate decreases and latent cell mercury vapor concentration increases Nominal detector flow is 20 sccm at the mercury vapor scrubber
29. 1 sends an End Of Data string to identify the end of the data stream e Sets analyzer to IDLE mode and waits for the next start command 6 2 3 1 External Start Command String The External Start Command string format transmitted by host computer must consist of three ASCII characters Below are four forms of the same command Form 1 Start Of Text S End Of Text Form 2 STX S EXT Form 3 ABS C Form 4 02 53 03 6 2 3 2 Detector Signal Data String The PP1 Detector Signal Data string format is an integer number followed by a carriage return CR and line feed LF An example 104345 104763 104832 The End Of Data string format consists of three ASCII characters The following are four forms of the same command Form 1 Start Of Text E End Of Text Form 2 STX E EXT Form 3 AB EAG Form 4 02 45 03 Page 52 Peak Performer 1 Users Manual An example 104345 104763 104832 Last sample sent to Host ABE C End Of Data command to Host from PP 1 6 3 Port 2 Protocol There are two COM2 protocol formats PLC programmable logic controller and MODBUS protocols There are three modes of operation AUTO POLL and MODBUS PLC protocol can operate in 2 modes AUTO or POLL The MODBUS Protocol mode is predefined and not user changeable Proper selection of protocol is determined by the application in use on the host computer 6 3 1 COM 2 Settings The RS 232 settings for COM 2 port are 9600 baud
30. 4 Peak Development on the Analytical Column Soon After Injection Figure 45 Peak Development Midway on the Analytical Column Figure 46 Peak Development Midway on the Analytical Column Page 65 Peak Performer 1 Users Manual Analytes of interest can be allowed to continue on to the detector as long as desired In some cases the resulting chromatogram can become quite long in duration In other circumstances it is not necessary to quantify all possible peaks and the remaining balance of the sample is back flushed to vent or detector K w S m i k f O OL Le Le el Ta ie ae an or Regis ee nOn aa ae satnarsetse BOOP nCh nO HCl Cb ncn hon aback m Figure 47 Peak Development on the Analytical Column After Backflush Figure 48 The Completed Chromatogram 7 4 Flow Venting and Balancing Several problems can arise in the development of the chromatogram e Presence of compounds that may be damaging to the detector e Disproportionate peak sizes e Length of analysis Several models of Peak analyzers are equipped with one or two valve plumbing arrangements to handle these situations Often a second valve is used to perform cutting actions at particular times during the chromatogram redirecting the column effluent towards a safe flow controlled vent outlet Page 66 Peak Performer 1 Users Manual During the cutting action
31. 4 5 1 Event Program Commands The instrument actions can be pre programmed to create an analysis method or Event Program The analyzer stores up to 4 distinct Event Programs V1 7 CW Moves V1 to the Inject position V1 CCW Moves V1 to Load position V2 CW Moves V2 to the In line position V2 CCW Moves V2 to the Vent position ZERO Invokes the detector ZERO command END Ends the Event Program and prepares the analyzer for the next run P ON Not currently in use P OFF Not currently in use Page 36 Peak Performer 1 Users Manual 4 5 2 Event Editor Screen Button Function Moves the cursor upwards Le Moves the cursor downwards Load 1 Allows the user to load the event program 1 Toggle Allows the user to scroll through event program choices Page Advances the user to the next screen 4 6 Stream Selector Program Editor Screen Purchase Option Peak offers a dual sample stream option for most analyzers The selection and timing of sample streams can be pre programmed on this screen NOTE This screen will only appear when the STREAM method of analysis is selected on the RUN screen FTT EPOC ES Stream Selector Program Editor Marual Select Edit Figure 25 Stream Selector Sequence Screen 4 6 1 Stream Selector Commands The selection of sample streams and appropriate Event Program can be run in a pre programmed sequence stream Establishes which sample stream to be utilize
32. Allows the user to energize each heater zone or change heater setpoint temperatures Energizes all the heater zones Advances the user to the next screen Peak Performer 1 Users Manual 4 1 3 Set up Screen Middle Section Normal The middle section of the Setup screen is concerns temperature zone and detector function 4 1 3 1 Page 25 Figure 13 Screen Commands After Warm up Set up Screen Middle Section Button Functions Normal Zero Allows the initialize the detector electronics and establish a consistent baseline signal ee Moves the cursor upwards IE Moves the cursor downwards Edit Allows the user to energize de energize each heater zone or change heater setpoint temperatures Page Advances the user to the next screen Peak Performer 1 Users Manual 4 1 4 Set up Screen Lower Section The lower portion of the Setup screen is reserved for error messages and non volatile memory updates 4 1 4 1 Error Messages on the Set up Screen Lower Section All error conditions are enunciated by a RED color on front panel LED and a shift in the ERROR FLAG parameter transmitted through the COM1 and COM2 output ports see Section 6 1 for additional details Green when alarm is cleared Figure 14 Set up Screen Displaying an Error Message There are eleven individual error conditions that can cause the status LED on the front panel to glow red e Detector Communication Error e Tempera
33. GHD COMMON GHD COMMON GND ANALOG 6 COMMON GND DETECTOR OUT COMMON GND REMOTE START REMOTE START FLAME SW FLAME SW GENERAL ALARM SW GENERAL ALARM Si GENERAL ALARM AND FLAME SWITCH RATED AT 0 5 A 1200 VAC PORER SOURCE Figure 20 Analog Output Wiring Schematic Page 31 Peak Performer 1 Users Manual Channels 1 7 output voltage can be tested manually by pressing the MANSET key to senda temporary signal for diagnostics 4 3 Calibration Database Screen The Calibration Database screen stores critical information regarding calibration Span gas concentrations and instrument response and provides tools to easily update the response factors Figure 21 Calibration Database Screen 4 3 1 Calibration Screen Button Function Update Allows the analyzer to calculate new RF factor tk T Moves the cursor upwards 0453 J Moves the cursor downwards Edit Allows the user to change concentration data or response factor Page Advances the user to the next screen 4 3 2 Calibration The Peak Performer 1 chromatograph determines concentration peak area to quantify the amount of contaminants in the sample gas The direct instrument response in units of uV sec is reported simultaneously as an overlay on the RUN CHROMATOGRAM SCREEN and in the AREA column on the CALIBRATION DATABASE SCREEN As the concentration peak area is determined the analyzer applies the pre programm
34. NALYZER IF UNCERTAINTY OF CARRIER GAS SELECTION EXISTS 2 5 1 1 Carrier Gas Purity Chromatographic instrument detection limit is directly related to carrier gas purity Improved carrier gas purity enables improved sensitivity Typical 99 999 Carrier Gas Specifications Pre Purification High Pressure Cylinder or Liquid Dewar Gas Type No Ar He alternative Page 12 Peak Performer 1 Users Manual Zero Air Gas Specifications Pre Purification High Pressure Cylinder or Zero Air Generator Gas Type 79 N gt 2 21 O2 THC Concentration lt 10 ppm CO Concentration lt 10 ppm CO2 Concentration lt 1000 ppm H2 H2O Concentration lt 100 ppm Synthetic air sources suitable for use as Zero Air include Zero and Breathing Quality grades CAUTION Compressed room air is not recommended unless refined by regenerative drying and combustion purification Consequently the analyzer s minimum detectable quantity MDQ would be quite high gt 10 ppm unless the carrier gas is purified A catalytic combustor is included as an integral component of the carrier gas flow path of the RCP equipped PP1 Hydrogen and Carbon Monoxide carrier gas impurities are reduced to less than 10 ppt by this combustor Internal Metallic Catalytic Combustor Specifications Maximum Flowrate gt 300 cc min lt 5 L min Gases Purified No Ar He or Air alternative CO Concentration outlet lt 10 ppt H2 Concentration
35. Peak Performer 1 Users Manual Peak Performer 1 RCP 910 Series User Manual LABORATORIES Peak Laboratories LLC www peaklaboratories com 650 691 1267 Version 5 0 1 14 14 Page 1 Peak Performer 1 Users Manual Forward This manual is a reference guide for the operation of the Peak Performer 1 series of gas analyzers The Peak Performer 1 should only be operated by trained personnel familiar with the safe operating procedures of the analyzer The following cautions should always be considered High voltages are required for proper detector operation and are present when the unit is energized High operating temperatures are required for proper detector and chromatographic operation Hot surfaces may be present when the unit is energized RCP equipped instruments utilize an intense ultraviolet light source Proper eye protection to block 254 nm radiation is required whenever the UV lamp cover is removed Illustrations and photographs contained herein are for example only Actual configurations may vary depending on specific application and installed options Improper installation operation or service of the analyzer can cause permanent damage to the instrument The analyzer is designed to be operated with all covers installed connected to a properly grounded 3 conductor AC line source RCP equipped instruments utilize small amounts of mercury Hg based compounds and small amounts of mercury may be present
36. STER device and the Modbus SLAVE The MASTER initiates and controls all information transfer on the communications channel A SLAVE device never initiates a communications sequence All communications activity occurs in the form of PACKETS A packet is a serial string of 7 bit ASCII bytes All PACKETS transmitted by the MASTER are REQUESTS All PACKETS transmitted by a SLAVE device are RESPONSES At most one SLAVE can respond to a single request from a MASTER The PP1 does not support broadcast request packets The PP1 shall only support the ASCII mode Modbus protocol The PP1 is only a SLAVE device The PP1 does not conform to all stated requirements according to the MODBUS Application Protocol Specification v1 1b3 and MODBUS over Serial Line Specification and Implementation Guide V1 02 6 4 1 Mode of Transmission The PP1 only supports the ASCII mode Modbus protocol The PP1 analyzer requires the serial communications channel to be configured to 9600 bps 7 data bits even parity and one stop bit Page 54 Peak Performer 1 Users Manual 6 4 2 Modbus Packet Structure Every Modbus packet consists of four fields e Slave Address Field e Function Field e Data Field e Error Check Field LRC Checksum Slave Address Field The slave address field of a Modbus packet is one byte two ASCII characters in length and uniquely identifies the slave device involved in the transaction Valid addresses will be ina range between 1 and 247
37. T Sample loops are very easy to customize 1 Determine the desired loop volume Analytical range is directly proportional to sample loop size 2 Select tubing tube internal diameter to use In general use the largest ID tube possible to avoid flow restrictions Guidelines 0 040 ID for 3 8 cc to 2 cc loops 0 030 ID for 3 16 cc to 1 2 cc loops 0 020 ID for 50 uL to 1 4 cc loops Note the shortest practical length of tubing for a sample loop is about 8 inches Note Do not use tubing less than 0 016 ID as it acts like a flow restrictor instead of a sample loop 3 The correct length for the loop tubing is calculated as follows Internal volume V in cc s 3 142 x ID 2 in inches x L in inches x 16 38 4 re arranging L in inches 0 777 x V in cc s ID 2 in inches an example for a 1 cc loop L inches 0 777 x 1cc 0 040 2 49 inches tube length 4 Measure to length cut and install VICI fittings 5 Blow the tube out with compressed air to remove any particles Page 99 Peak Performer 1 Users Manual 9 11 Testing the Heater Resistance HOLD MINMAX RANGE 177 AUS AAS Ae Tee Figure 81 Heater Resistance for 200 240 VAC AC Service Page 100 Peak Performer 1 Users Manual 9 12 Main DC Power Supply Replacement Purpose Replace upgrade Phihong PSA4531 DC Supply with Power One BLP55 3000 DC Power Supply Procedure Power off analyzer if gas umbilical tubing
38. a third portion passing through a restrictor tube terminating at the location of the BYPASS OUT port Under normal operating conditions these ports are capped During column reconditioning the plug may be removed and the SAMPLE IN switched to the bypass flow In this manner column reconditioning may be performed without requiring a shutdown of the sample gas flow avoiding the lengthy re equilibration period Page 14 Peak Performer 1 Users Manual 2 5 2 Actuator Supply The actuator supply is normally independent of the carrier gas inlet Actuator supply is normally attached to the rear panel of the instrument Attach the air or inert gas actuator supply to ACTUATOR IN port on the rear panel Preset the source to 60 80 psig Nominal f Clean Dry Air lt 10 ppm If a combined carrier actuator inlet is requested connect a source of 60 80 psig of air or inlet gas to the CARRIER IN port 2 5 3 Sample Supply Sample lines are normally attached to the rear panel of the instrument Attach sample or span gas lines to the SAMPLE IN port on the rear panel The SAMPLE OUT port must be unrestricted Sample gas must be supplied to the analyzer at low pressure 0 3 to 1 0 psig and moderate flow 30 to 120 ml min The analyzer does not have any sample gas pressure flow regulation equipment Please contact the factory for sample handling instructions if these input conditions are not available SAMPLE GAS
39. ates to non volatile memory Moves the cursor upwards J Moves the cursor downwards Page Advances the user to the next screen Pressing the ACCEPT button alters the screen appearance Figure 17 Parameter Change Prompt Page 28 Save Esc Peak Performer 1 Users Manual Allows the user to make changes to permanent non volatile memory Aborts updates to non volatile memory 4 2 Analog Interface Trend and Recorder Output Screen The compound or Channel information for the ANALOG INTERFACE screen is automatically populated using the information from the ANALYSIS DATABASE screen Analog signals generated from this information appear on the rear panel s green DIN terminal blocks See Figure 19 12 8S oO Analod Interface Rande ManSet Page Figure 18 Analog Interface Screen 4 2 1 Analog Interface Screen Button Function Page 29 Range tK Moves the cursor upwards KIJ Moves the cursor downwards Allows the user to select the full scale concentration range associated with the maximum 1 00 VDC signal for each compound The ranges are manually set from 0 gt 999999 ppb e g 0 1000 ppb readings in the analyzer 0 1 00 VDC output scale At the end of each run the analog signal is updated and holds until the next run is completed As an accessory Peak can provide standard commercial VDC gt mA converters as needed In lieu of a s
40. boratories for additional details specific to your application In general applications samples are introduced into the instrument through the SAMPLE IN connection A controlled portion of the sample gas is injected via the pneumatically actuated gas sampling valve into the carrier flow path The injected sample passes onto analytical column s inside the isothermal column oven see figure 43 and moves over first Stripper column where the separation of the components begins Analytes of interest are allowed to continue onto the second Analytical column and the remaining balance of the sample is back flushed to the vent The analytes of interest are further separated on the second column and continue to the detector inlet f COLUMN 2 Hf COLUMN 1 f Wh si MS13x i 165 UNI tS CARRIER IN REAR PANEL TO DETECTOR mn A COMBUSTOR FPR1 INTERNAL EXTERNAL DETECTOR BYPASS R3 AUX1 IN REAR PANEL FPR2 TO PILOT VALVE VANFOLD C4 f 8B w amp SAM ne BYPASS OUT FRONT PANEL LOOP R2 VALVE 1 O SAMPLE OUT REAR PANEL SAMPLE IN FRONT PANEL INTERNAL EXTERNAL SAMPLE IN REAR PANEL SAMPLE OUT FRONT PANEL INTERNAL EXTERNAL Figure 43 Typical RCP plumbing diagram Immediately after injection the entire contents of the sample loop are moved to the head of the column s and component separation begins Page 64 Peak Performer 1 Users Manual Figure 4
41. calculated peak maximum signal is less than the PkHgt parameter value but is greater than zero The time associated with the peak maximum signal is always calculated first for Forced Baseline and Variable modes by using the convolution filter to find the maximum detector signal point Page 76 Peak Performer 1 Users Manual The time associated with the peak maximum signal must be within the time regime of interest PkCen 12 PkWin for any peak quantification to occur In Forced Baseline Mode the normal detector baseline is calculated based upon the peak maximum signal time value rather than the PkCen value Peak start time Peak signal maximum time value LW Peak end time Peak signal maximum time value RW E E 3 ax co ou Figure 63 Baseline as Established in Forced Baseline Mode Peaks quantified using this method is denoted with a B in the last column of the data report 7 6 3 Peak Quantification Variable Mode If the peak maximum signal value exceeds the PkHgt value the Variable Mode is enabled for determination of peak start and end points The time associated with the peak maximum signal is always calculated first for Forced Baseline and Variable modes by using the convolution filter to find the maximum detector signal point Page 77 Peak Performer 1 Users Manual z Oo Oo 2 2 N N Figure 64 Initial parameters for Baseline Determi
42. configure the PP1 to run continuously until the Idle key is pressed ReRun Toggle Starting a run in the ReRun mode shall recompute the area and concentration based on the parameters in the analysis data base Stream Toggle Starting a run in the Stream mode will configure the PP1 to initiate the Stream Selector Sequence until the Idle key is pressed Page Advances the user to the next screen 4 7 2 Continuous Monitoring Analysis Continuous monitoring is intended for on line analysis or other applications which ReRun analysis is not required Use the PAGE key to scroll to reach the Run screen Toggle the Single Cycle ReRun key until Cycle appears see Figure 28 Press Run to initiate a repetitive analytical cycle By pressing the RUN key event program 1 P1 is automatically loaded and the system will begin to collect data in repetitive mode see Figure 28 To halt the cycle pressing the IDLE will cause the analysis run to cease immediately Toggle between the Single Cycle Rerun or optional Stream to select the next mode of analysis 4 7 3 Manual Screen Sub Screen of the Run Screen The Manual sub screen allows the operator to invoke all the event program commands on demand Figure 29 Run Manual screen Page 40 Peak Performer 1 Users Manual 4 7 3 1 Manual Screen Button Functions Zero Pressing this key will electronically zero the detector V1 Toggles Valve 1 between CW and CCW pos
43. d for analysis Event Prog Establishes which Event Program to be utilized for the sample stream Cycles Establishes the number of repeat analysis Page 37 Peak Performer 1 Users Manual 4 6 2 Stream Selector Program Editor Screen Button Function 1 2 Moves the cursor upwards ae Moves the cursor downwards Edit Allows the user to chose event program and of repetitions Page Advances the user to the next screen 4 7 Run Chromatogram Screen The Run Chromatogram screen is provides the real time display and data processing of sample analysis The screen displays the running chromatogram peak markers and concentration data The information displayed on this screen is useful for evaluating instrument health event program validity and analytical stability 4 oS eee Figure 26 Run Chromatogram screen in the Idle state and the mode displayed upon initial power up Page 38 Peak Performer 1 Users Manual Figure 28 Run screen in Idle mode at end of run 4 7 1 Run Screen Button Functions Page 39 Run Idle Manual Disp Single Loads a standard event program and runs an analysis in the mode selected Stops the analysis immediately Opens the Manual Run Screen Opens the Display Screen Toggle Starting a run in the Single mode will command the PP1 to run one time and return to the idle mode Peak Performer 1 Users Manual Cycle Toggle Starting a run in the Cycle mode shall
44. e air flow for adequate ventilation to the rear of the unit is required e Communication between the PP1 and your PC is via 9 pin straight through cable connection to COM 1 and COM 2 e Analog outputs are available from the DIN screw terminal strip on the rear panel e The PP1 RCP contains an extremely light sensitive detector do not place the analyzer in a location where bright light sunlight can enter the rear air vent slots Electrical Connections Verify the correct operating voltage as marked on the rear of the analyzer at the main power switch Attach a standard power cable to the rear of the instrument see Figure 1 and connect to an appropriately grounded outlet Power Cord End PP1 Power Entry Module Figure 1 AC Power Connection Details Page 8 Peak Performer 1 Users Manual The PP1 has been CE certified to be immune to AC frequency and voltage variances of 10 of the nominal AC operating voltage Refer to the final test report and or markings on the rear of analyzers to verify the proper operating voltage for each unit For best stability power to the analyzer should originate from an electrical circuit free of large inductive or other current loads Be sure to mount the analyzer in an area of adequate ventilation and make sure the cooling fan inlet is unobstructed There are no battery back ups or reserve power supplies built into the PP1 therefore any disruption of the AC supply will result in restarting of the
45. e text format To reveal the chromatogram again press the upper right corner of the RUN screen again 20 To halt sampling press the IDLE command once 3 2 Column Conditioning CAUTION Be sure to put the RCP detector on standby flow before conditioning columns Conditions warranting column reconditioning are a Start up after storage shipment b Reduced detector response c Unstable baseline d Merging of peaks Normal column operating temperatures are 90 to 130 C The maximum PP1 RCP column operating temperatures 195 C CAUTION Never energize heaters of the instrument unless carrier gas flowing CAUTION Do not exceed 210 C of column oven temperature Temperatures in excess of 210 C can destroy column material 1 Connect the front jumper tube between SAMPLE IN and BYPASS OUT 2 Use the fT and keys to navigate and alter the SET value for the Column heater zone to 180 to 200 C 3 After 8 to 12 hours of stable conditioning temperature the column temperature may be restored to the original factory setting Page 18 Peak Performer 1 Users Manual 4 After normal operating temperature is achieved the front jumper tube may be reconnected between SAMPLE IN and SAMPLE OUT 5 The detector inlet may be switched back to the column outlet after normal operating temperature is achieved After a 5 10 minute detector re equilibration period samples may be run 6
46. ed response factor as an inverse proportional factor to generate the reported concentration value PEAK CONCENTRATION PEAK AREA RESPONSE RESPONSE FACTOR Page 32 Peak Performer 1 Users Manual 4 3 2 1 Establishing New Instrument Response Factors Connect a known calibration standard gas span gas to the analyzer at the SAMPLE IN port on the front panel If soan gas connection is made at the rear panel SAMPLE IN port ensure that the front jumper is connected between SAMPLE OUT and SAMPLE IN on the front panel Verify that sample is flowing freely through loop exit flow from the SAMPLE OUT should be 30 to 120 cc min Press the ESC or PAGE keys as needed to navigate to the RUN screen Press the SINGLE CYCLE RERUN key to toggle to SINGLE mode Press the RUN key to initiate analysis the P1 event program will be loaded automatically and executed Allow the analyzer to fully execute the event program Current concentration data will be displayed as an overlay on the RUN screen as peaks are identified and quantified Press the PAGE key as needed to toggle to the CALIBRATION DATA BASE screen ow tt Place the at the first compound of interest and press the EDIT key use the up down left and right arrow keys to enter the span gas concentration in the CONC field Be certain to use the right arrow key to fully exit the CONC field or all updates will be lost With the before the compound name press the UPDATE key The a
47. endent upon the section containing the asterick cursor 1 The upper section 3 lines contains commands related to analyzer set up 2 The middle section 5 lines contains commands related to temperatures zones and detector parameters 3 The lower section is reserved for error messages and non volatile memory updates Page 22 Peak Performer 1 Users Manual 4 1 1 Set up Screen Upper Section Figure 11 Set up or Main Screen Upper Section 4 1 1 1 Set up Screen Upper Section Button Functions ier Moves the cursor upwards is Moves the cursor downwards Edit Allows the user to change the Date Time or Protocols Page Advances the user to the next screen Page 23 Peak Performer 1 Users Manual 4 1 2 Set up Screen Middle Section Power up The middle section of the Setup screen is concerns temperature zone and detector function Figure 12 Screen Commands Upon Power up NOTE The heater zones are not energized automatically upon power up and the detector electronics are not fully initialized until the ZERO command is invoked 4 1 2 1 Set up Screen Middle Section Button Functions Power up lf both heater zones are de energized the following command buttons are available Zero Edit Heat Page Page 24 Allows the initialize the detector electronics and establish a consistent baseline signal Moves the cursor upwards Moves the cursor downwards
48. ent concentration data will be displayed as an overlay on the RUN screen as peaks are identified and quantified Press the PAGE key as needed to toggle to the CALIBRATION DATA BASE screen Place the at the first compound of interest and press the EDIT key use the up down left and right arrow keys to enter the span gas concentration in the CONC field Be certain to use the right arrow key to fully exit the CONC field or all updates will be lost With the before the compound name press the UPDATE key The analyzer will recalculate the appropriate response factor for the compound based upon the span gas concentration and analyzer area response using the following formula RESPONSE FACTOR AREA RESPONSE SPAN GAS CONCENTRATION NOTE The LED on the analyzer s front panel will change from green to red to remind the user that the current calibration information is stored in volatile temporary memory only and will need to be saved to permanent memory at a later time Repeat the sequence for each of the compounds shown on the CALIBRATION DATA BASE screen Page 20 Peak Performer 1 Users Manual Repeat analysis of the span gas sample and verify that the analyzer reports data values within normal calibration tolerances i e 5 3 6 Q3 CON O1 A Shutdown and Transport Allow the temperature zones to cool below 50 C approximately 2 hours Allow carrier to flow during cool down time Shut
49. eters that should be verified occasionally e Actuator Gas Type e Port 1 Protocol Setting e Port 2 Protocol Setting e Calibration Database Screen Parameters all e Analog Interface Screen Parameters all e Analysis Database Screen Parameters all e Event Program Editor Screen Parameters for all active Event Programs Page 91 Peak Performer 1 Users Manual 9 3 Verifying Valve Integrity Carrier Blank Zero Gas In addition to periodic calibration checks the integrity of the rotary valve seal must be tested Determination of valve seal quality is performed by analyzing known purified gas as a sample 1 Connect the front panel SAMPLE IN port to the front panel BYPASS OUT port This will begin flow of purified gas through the sample loop 2 Wait 10 minutes to purge the analyzer completely of any residual gas samples 3 Initiate a standard sampling run in CYCLE mode 4 Collect 5 sample runs with Peak Viewer 5 Average the concentration data of the 5 runs for each peak of interest 6 Average readings higher than 1 ppb for any compound indicates a loss of valve seal integrity and possibly suggests valve head replacement 9 4 Mercury Vapor Scrubber Replacement After use the mercury vapor scrubber contains trace amounts of mercury Hg and activated charcoal While the quantity of mercury contained in the scrubber is significantly less than that contained in a single fluorescent lamp lt 50 micrograms Disposal of
50. fects of Temperature and Flow on Analytical Columns Peak Identification and Quantification Peak Quantification Fixed Mode Peak Quantification Forced Baseline Mode Peak Quantification Variable Mode Chromatographic Stabilization of the Analyzer Injecting O2 Reducing Compound Photometer RCP 910 Series Reducing Compound Detection Temperature Effects Within The RCP Reaction Bed Flow Rate Effects Bed Lifespan Analyzer and Maintenance and Service Procedures Peak Performer 1 System Block Diagram Monitor Regulator Pressures Verifying Valve Integrity Mercury Vapor Scrubber Replacement Adjusting RCP Vlamp UV Lamp Value RCP UV Lamp Replacement RCP Bed and Window Retaining Nuts Changing the Mercuric Oxide Bed Adjusting the Display Contrast Altering the Analytical Range of the Instrument Testing the Heater Resistance Main DC Power Supply Replacement Adjusting the 5 Volt DC Supply Replacing the Lamp Driver Printed Circuit Board COM 1 Connections on Multiple Analyzers to Signal Computer Peak Performer 1 Users Manual AN K PEAK PERFORMER 1 1 0 Introduction The Peak Laboratories Peak Performer 1 PP1 gas analyzer is a trace level gas analysis system capable of detecting part per trillion ppt concentrations of reducing gases and hydrocarbon gases in a variety of sample matrices Due to the specific nature of the detection method analysis times are rapid and chromatographic complexity is minimized The result
51. ignifies that there is a connection problem with the PC and the PP1 Verifying the following can solve this connection problem e Communication Settings e Connection of 9 pin cable between PC and PP1 e RS 232 cable plugged into the PP1 s COM 1 port e PP1 is powered off After the connection problem has found and corrected the RED DOT should be CLICKED to verify if communication between the PC and PP1can be properly established on PeakView Ver File Start Stop Chrom View Event Info Upload Run Time Stream z Figure 31 Viewer main window showing Communications Error The Viewer window shown in Figure 34 shows the viewer screen without the RED DOT This signifies the communication connection between the PC and the PP1 is function correctly Page 43 Peak Performer 1 Users Manual gy PeakView Ver 5 08 File Start Stop Chrom View Event Info Upload Run Time Stream Figure 32 Viewer main window showing no Communications Error 5 5 1 File Menu on the Viewer Taskbar My PeakView Ver 5 08 Start Stop Chrom View Event Info Upload Open Port Settings i Print Exit Figure 33 File Menu on the taskbar Page 44 Peak Performer 1 Users Manual The File menu contains the following commands Opens a CSV file that was created by the Viewer software Use this command to open a CSV file to view the concentration data Opens serial communication settings window for setting RS 232 Port Set
52. in the detector bed and scrubber after use Proper safety protection to block mercury ingestion is required when handling these components In event of fire Class A B or C fire extinguishers can be used The Peak Performer 1 must have standard electrical power and applicable gas Supply pressures as noted on the test documentation for proper operation Permanent damage and voiding of the warranty may result from improper Operators should not attempt to repair the instrument except under directed to do so by factory trained service technicians Permanent damage and voiding of the warranty may result of improper operation Normal life of the mercury scrubber is 24 months under continuous use Replace and dispose of properly in accordance with local and federal regulations Page 2 Peak Performer 1 Users Manual Glossary and Terms RCP HgO Hg Scrubber Molecular Sieve Unibeads HSD Molecular Sieve Unibeads Gas Purity Span Gas Response Factor Name PkCen LW RW PkWin PkHgt Fit VICI Page 3 Reducing Compound Photometer Mercuric Oxide Mercury vapor trap Zeolite column packing material Silica column packing material HayeSep D column packing material Zeolite column packing material Silica column packing material Amount of undesired elements in a gas supply Gas supply with known certified amounts of specific compounds Proportionality factor between area count units and concentration units
53. ing Nuts Tightening of the detector retaining nuts is recommended when the sample cell temperature has been cycled repeatedly The two window retaining nuts are located at either end of the optical cell and are recessed within the cell insulating supports The nut wrench provided for this procedure has fingers which extend into the recessed nuts and engage the slotted head Move the wrench slightly vertically and rotationally until tt seats ina slot nuts are slotted every 60 Use only slight wrench pressure in tightening clockwise The nut retaining the reaction bed can be similarly tightened with the opposite end of the wrench or screwdriver inserted into one of the slots Page 96 Peak Performer 1 Users Manual 9 8 Changing the Mercuric Oxide Bed This procedure is only used for pre treated Peak Laboratories mercuric oxide beds The mercuric oxide bed has a nominal life of 2 years Bed replacement is indicated when a 50 decrease in instrument response for any detectable compound is indicated Power the analyzer OFF Allow the detector to cool below 100 C Remove the analyzer top cover Measure detector flow at the mercury scrubber outlet Note the flow rate for future reference Neatly remove or push back any insulation from around the bed inlet area to create a clear opening around the bed retaining nut Gently vacuum any insulation dust away from the head of the bed retaining nut Use a flat blade screwdriver or s
54. irst task in quantifying peaks is establishment of the normal stable detector signal baseline This is accomplished by determining the signal departure and return points for the peak event The parameters used when defining detector baseline signal and peaks are Figure 59 Typical PP1 Peak Analysis Database Page 73 Peak Performer 1 Users Manual PkWin Figure 60 Illustration of Chromatographic Peak Parameters Name The peak identification tag expressed as 5 alohanumeric characters A Z 0 9 PkCen The normally expected peak retention time in seconds used for assigning the appropriate Name LW The typical time span measured from the start of the peak s baseline rise to the peak apex PkCen in seconds Minimum value is 3 maximum is 35 RW The typical time span measured from the peak s apex PkCen to the end of the peak s baseline decline in seconds Minimum value is 3 maximum is 35 PkWin Total tolerance window in seconds for assignment of a Name to a quantified chromatographic peak The tolerance window is centered upon the PkCen value NOTE The peak top detection algorithm processes only the data within this window PkHgt A variable for establishing the cross over point in peak detection modes Chromatographic peaks higher than this parameter will be quantified using the Variable mode heights peaks with height less than or equal to P
55. is 3 maximum is 35 PkWin Total tolerance window in seconds for assignment of a Name to a quantified chromatographic peak The tolerance window is centered upon the PkCen value PkHgt A variable for establishing the cross over point in peak detection modes Chromatographic peaks higher than this parameter will be quantified using the Variable mode heights peaks with height less than or equal to PkHgt will be quantified using the ForceB mode Fit The convolution filter value expressing the overall peak shape Flt 2 is recommended for sharp narrow peaks such as H2 and Flt 8 is recommended for broad peaks such as CO As a general rule LW and RW values do not change significantly with peak concentration so calibration peak size is not critical in determining proper LW and RW values Page 34 Peak Performer 1 Users Manual H2 Peak Left and Right Widths as a Function of Concentration A Left Width Right Width nds Left Width seco Right Width seco 1 10 100 1000 10000 Blended Concentration ppb CO Peak Left and Right Widths asa Function of Concentration nds Right Width seco Left Width seconds 1 10
56. is used it is not necessary to cool down the analyzer Maintain normal gas supplies Disconnect AC power cord Remove top cover Locate the main DC power supply in the right rear portion of the chassis see Figure 1 A A I it SY Figure 82a Main DC Power Supply Location Remove the 4 each 6 32 screws that hold down the plastic protective shield to expose the DC power supply i oan cen Tie 1238024809 Figure 82b Main DC Power Page 101 Peak Performer 1 Users Manual RCP m B Figure 83 Main DC Power Supply with Shield Removed Unscrew the 4 each 4 standoffs that retain the DC power supply to the rear panel circuit board Disconnect only the two cable assemblies that attach the DC power supply to the rear panel circuit board it is recommended to disconnect the cables at the circuit board connector end Remove the DC power supply by sliding it under the overlaid cable assemblies do not remove the other cable assemblies see Figure 87 INTERCONNECT 484 001 Rev PEAK LABORATORIES REAR PANEL INTERC a amp Ge x Figure 84 Main DC Power Supply Fully Removed Page 102 Peak Performer 1 Users Manual Lay the old DC power supply on the workbench aside the new Power one DC power supply Orient such that the 6 pin and 2 pin connectors are aligned see Figure 83 Old Versions of DC Power Supplies Figure 85 Correct Alignment and Cable Transfer from
57. itions V2 Toggles Valve 2 between CW and CCW positions Esc Exits from the Manual sub screen to the Run screen 4 7 4 Display Screen Sub Screen of the Run Screen The Display sub screen allows the operator to adjust the horizontal scale vertical scale and baseline offset of the chromatogram These functions mimic those of a standard chart recorder Figure 30 Run Display screen 4 7 4 1 Display Screen Button Functions VOff Scrolls the screen up maximum Voff 11 without changing the scale VOff Scrolls the screen down minimum Voff 0 without changing the scale Atin Toggles the attenuation vertical scaling max Attn 11 up Attn Toggles the attenuation vertical scaling min Attn 1 down Span Toggles the window view horizontal scaling in seconds Esc Exits from the Display sub screen to the Run screen Page 41 Peak Performer 1 Users Manual 5 0 Peak View Software The Peak View software has two main capabilities Primary functions concern acquisition and archiving of compound concentration and acquisition and collection of the chromatogram data The software also provides the ability to display and print the data from a remote computer platform Peak View software is written specifically for the Peak Laboratories Peak Performer 1 PP1 gas analyzer covering communications port protocols and data formats and is not intended for use with other manufacturer s analyzers 5 1 System Requirements
58. kHgt will be quantified using the ForceB mode Fit The convolution filter value expressing the overall peak shape Fit 2 is recommended for sharp narrow peaks such as H2 and Flt 8 is recommended for broad peaks such as CO For good peak quantification it is important to consistently determine when the peak begins the positive increase in detector signal when the signal maximum occurs and when the peak ends the return to stable detector signal PkCen LW and RW are used to establish starting and ending points for mathematical analysis of the baseline Page 74 Peak Performer 1 Users Manual All modes of peak are calculation require locating the peak top usually the point of maximum peak signal In cases where the detector signal is strong locating the peak maximum value is Straightforward Often the concentration regime of interest is the opposite case where it is desirable to detect and extract the smallest possible peak signal Under these circumstances it is advantageous to utilize signal processing techniques that magnify signal differences Mathematical convolution is one such method Convolution rolls two waveforms together as the product of data matrices with the resulting new waveform having exaggerated characteristics Detector Baseline Cross Multiplied by the Convolution Filter Yields the Resultant Baseline Figure 61 Convolution to Enhance Signal Characteristics
59. l bars BE Chrom iewer 2003 12 22 1335 chm a x File Viewer Open oe of A ff v BaseLine Print Exit co Figure 38 Chromatogram Viewer Window Page 48 Peak Performer 1 Users Manual NOTE Viewer window scaling does not match the analyzer s display scaling A higher degree of resolution is available in the Viewer window For instance Viewer ATTN 8 approximately is equivalent to analyzer display ATTN 1 5 5 4 1 Chromatogram Files Chromatograms are archived on the host computer as text files suffixed chm The text files can be imported into most common laboratory analysis soreadsheet and word processor programs as needed Data points in the chromatogram file are time sequenced at 0 2 seconds per data point The filename of the chromatogram file is generated by time of day on the host computer and the file is stored in a folder that corresponds to the date of collection A corresponding Viewer data file is created and or updated at the time the chromatogram file is created As an example the fourth chromatogram shown in Figure 36 would be archived on the host computer as follows Main directory C Viewer Sub directory 2013 12 05 YYYY MM DD of archive creation Viewer filename 2013 12 05 csv Filename 0851 chm 5 5 4 2 File Menu on the Chrom Viewer Taskbar Ee Chrom iewer 2003 12 22 1335 chm E x File viewer ATTEH 46 SPAH 180 gt 4 F Open Saves
60. lid holding register an exception response is generated The exception response follows the standard packet format The high order bit of the function code in an exception response is set to 1 The data field of an exception response contains the exception error code The table below describes the exception codes supported by the PP1 and the possible causes Return Function Function Description pT An invalid command is contained in the function field of the request packet The request packet The PP1 only supports Modbus functions 03 and 06 The address referenced in the data field is an invalid address for the specified function This can also indicate that the registers requested are not within the valid register range of the PP1 The value referenced in the data field is not allowed for the referenced register The LRC checksum is invalid Table 2 Exception Codes supported by the PP1 Exception Response Packet Slave Modbus pet ete tspotet ete PP1 Modbus Registers Map The PP1 Modbus holding register map defines a set of parameters which are treated as holding registers having addresses 4XXXX According to the Modbus protocol in response to a request for register 4XXXX of a particular slave device the Modbus master reads register XXXX 1from the slave For example Modbus register 40054 corresponds to holding register 53 There are two classes of Modbus registers within the PP1 Modbus Output Registers and External C
61. ling mercuric oxide bed CAUTION Detector insulation dust is non hazardous but can be an airway irritant Use vacuum to remove insulation dust CAUTION Used mercuric oxide beds contain small quantities of mercury lt 50 micrograms Disposal of mercuric oxide beds should be made in accordance with local or federal regulation Consult with local and federal authorities for proper disposal instructions Page 97 Peak Performer 1 Users Manual 9 9 Adjusting the LCD Contrast 1 t NAN dit D A ATA jf _ FF I ome yi na E f P Jl y z 4 jj 8 kiiit p 4 Eh E gt l iit L ETIIIICIViTititcy i a e Te Ca mili m EEEN R y x ri AA S P S Te eTe s s ee 553 n amp al Ve cca ri TS Axr pe n pliiis i 21 ie PTE te e meneame 4 ce gt e We f T araa pai O gt A T r pr seectecast t CeCeryeeus a r eorrsercen F patoi e a Ajdust this potentiometer to change display instensity and contrast Fic ra 7Qa Y Viaw af tha MCOPII Qhawrina tha CN Cantract Patantiometer Adjust this potentiometer to change display instensity and contrast Figure 79b View of the MCPU Showing the LCD Contrast Potentiometer MCPU adjustments for software versions 4 and above Page 98 Peak Performer 1 Users Manual 9 10 ALTERING THE ANALYTICAL RANGE OF THE INSTRUMEN
62. n response to the request packet Modbus Register 40013 4E38 Hex 20024 Modbus Register 40014 2A60 Hex 10848 Function 06 Preset Single Register Preset a value into a single holding register Place specific values into a single holding registers in the PP1 There is only one holding register that can be written to the PP1 See PP1 register map below Preset Single Register Packet Example In the next example the PP1 s Modbus slave address is 143 and the master requests to write the value of 3 to Modbus register 40004 In accordance with the Modbus protocol register 40004 is numbered as address 3 when requested Slave Address 143 8F Hex Modbus Function 06 06 Hex Starting Register 3 0003 Hex Preset Data 3 0002 Hex Request Packet non shaded background denotes the DATA field of the packet LRC Slave Modbus ah Register Response Packet LRC Slave Modbus Starting Register pete potest fofo sfofofo e fete As you can see from the response packet above the response is the echo of the requested packet 6 4 4 Modbus Data Format The PP1 is capable of exporting all holding registers into the Modbus protocol The PP1 data available in a contiguous set of Modbus holding registers The PP1 output registers are located in the Modbus register map from 40001 to 40099 The actual location is defined in table 3 below The actual location is defined in table 3 below Page 57 Peak Performer 1 Use
63. n the MAIN SCREEN is A set to DETECTOR See Section 6 2 Page 30 Peak Performer 1 Users Manual 4 2 3 Analog Interface Wiring There are 10 total terminal connectors from the top the connectors ID s are Terminals 1 6 Impurity Trends All channels are mapped to the calibration database All channels are 0 1 VDC All channels signals are updated at the end of run and held All channels are manually scalable on the ANALOG INTERFACE SCREEN e g 0 gt 1000 0 to 1000 ppb 0 1 VDC scale Maximum scale is 999 999 Optional converters to provide other current voltage outputs are available Please contact your local Peak representative for additional information Terminal 7 Analog recorder raw signal 0 1 VDC range Terminal 8 Remote Start Input The remote start input is activated by shorting the terminal 8 to COMMON GND for at least 100ms The remote start input must then return the to an open state unshorted Terminal 9 FID Flame Switch Relay The FID Flame and General Alarm switch relays are SPST N O and rated for 0 5 amps 200VDC 10VA Terminal 10 General Alarm Relay The FID Flame and General Alarm switch relays are SPST N O and rated 0 5 amps 200VDC 10VA NOTE The Analog recorder signal is only active when the COM 1 setting is set to Viewer 0 104 LT 0 1 0 VDC OUTP ME PRN D 1 0 VEG OUTPUT pase i qaam j b es f yr COMMOH GHO COMMON
64. nalyzer will recalculate the appropriate response factor for the compound based upon the span gas concentration and analyzer area response using the following formula RESPONSE FACTOR AREA RESPONSE SPAN GAS CONCENTRATION NOTE The LED on the analyzer s front panel will change from green to red to remind the user that the current calibration information is stored in volatile temporary memory only and will need to be saved to permanent memory at a later time Repeat the sequence for each of the compounds shown on the CALIBRATION DATA BASE screen Repeat analysis of the span gas sample and verify that the analyzer reports data values within normal calibration tolerances i e 5 4 4 Analysis Database Screen The Analysis Database screen stores critical information regarding peak identification and quantification parameters Page 33 Peak Performer 1 Users Manual Figure 22 Analysis Database 4 4 1 Analysis Database Parameters Name The peak identification tag expressed as 5 alphanumeric characters A Z 0 9 PkCen The normally expected peak retention time in seconds used for assigning the appropriate Name LW The typical time span measured from the start of the peak s baseline rise to the peak apex PkCen in seconds Minimum value is 3 maximum is 35 RW The typical time span measured from the peak s apex PkCen to the end of the peak s baseline decline in seconds Minimum value
65. nation Initially the mathematics package makes a trial evaluation of peak area using a fixed percentage of the LW and RW values as initial baseline points illustrated as the hypothetical baseline between points 2 3 of LW and 2 3 of RW in Figure 64 The hypothetical calculation of the peak start time is labeled LW in Figure 65 Peak Maximum s S re aed N N PEAK START Figure 65 Progression of Peak Start Time Calculation After calculating the hypothetical peak area based upon the L and R values the mathematics package makes another peak area calculation using a slightly earlier time value The peak areas of the two calculations are compared and if the peak area increases by more than 0 5 the mathematics package repeats the process The net effect is illustrated in Figure 65 where multiple hypothetical peak start points were evaluated The final value is represented by point 5 when the change in peak area became less than 0 5 Page 78 Peak Performer 1 Users Manual The trial evaluation of peak area continues for the peak ending point again using a fixed percentage of the LW and RW values as initial baseline points again illustrated as the hypothetical baseline between points L and R in Figure 66 The first hypothetical calculation of the peak end time is labeled 1 in Figure 66 After calculating the hypothetical peak area the mathematics package makes another
66. nd launch the hardware installation program 23 Insert USB to DBY adapter INSTALL CD in CD drive it will launch automatically if autoplay in enabled on your computer 24 Follow installation instructions that come with USB to DB9 adapter I confirm that it is okay to click the Continue anyway box 25 Your computer may prompt to install the USB to DB9 adapter a second time do not cancel it is best to let the computer re install the software again 26 Open the second new folder and select the Viewer exe file in that folder 27 Double click to launch Viewer exe you might get a COM port error message window simply click OK and proceed 28 Go to Windows Device Manager gt Settings gt Control Panel gt System gt Hardware gt Device Manager to see what the additional port assignment on your computer is 29 In the Device Manager click on Ports to expand heading so you can see what COM port number your computer gave to the second USB to DB9 adapter it will be displayed directly under the note for the first USB to DB9 adapter 30 Note which COM port number is now assigned to the second USB to Serial RS232 Port adapter it s COM5 on most computers 31 Go back to the Viewer window Page 107 Peak Performer 1 Users Manual 32 Under File on toolbar select Port Settings 33 Enter COM number assigned to second USB to DB9 adapter probably COM5 check that Baud Rate 38400 Data Bits
67. nect Diagram Page 90 Peak Performer 1 Users Manual 9 2 Monitor Regulator Pressures Carrier supply settings should not vary Carrier and Actuator Air settings may shift when supply cylinders run low due to regulator creep and should be checked periodically to maintain consistent gas flows and peak retention times Varying carrier pressures can cause peaks to shift out of set retention times and not be flagged properly Critical operating parameters are listed on the top page of the Final Test Data shipped with the analyzer Peak Labs recommends the user create a logbook of critical parameters on a routine basis as an aid to troubleshooting Suggested parameters for frequent logging are e Analyzer S N e Date and Time e Carrier Gas Type e Carrier Gas Supply Pressure e Carrier Gas Flow at Hg Scrubber Outlet V1 CW e Carrier Gas Flow at Hg Scrubber Outlet V1 CCW e Carrier Gas Flow at Front Panel Bypass Out Port e Carrier Gas Flow at NV1 Outlet V1 CCW e Carrier Gas Flow at NV2 Outlet V1 CCW e Actuator Gas Supply Pressure e Sample Gas Type e Sample Gas Flow at Rear Panel Sample Out Port e Column Setpoint and Measured Temperature e Detector Setpoint and Measured Temperature e RCP Vout Signal after zeroing e RCP Vlamp Reading e Rfactor for compounds 1 2 3 amp 4 from Calibration Database screen e PkCen for compounds 1 2 3 amp 4 from Analysis Database screen Other critical param
68. olean registers are packed into a single Modbus register The boolean outputs are corresponds to one bit in the single output register of the module The relationship is left to right the first inout register corresponds to the left most bit in the 16 bit output register etc Example Packed Boolean Format Six Boolean registers are linked to a single Modbus register which is configured for Packed Boolean output format If the first three are valued False and the remaining three are valued True the output register value is Register 0001110000000000 Bin 1C00 Hex If the first input register became True the output register value changes to Register 1001110000000000 Bin 9C00 Hex Page 58 Peak Performer 1 Users Manual 8CharString Format The 8CharString or eight character string register format is four 16 bit Modbus Holding Registers that hold a total of eight ASCII characters 6 4 5 Broadcast Packets The purpose of a broadcast request packet is to allow all slave devices to receive the same request command from the master A broadcast request packet is the same as a normal request packet except the slave address field is set to zero 0 All Modbus slave devices receive and execute a broadcast request command but no device will resoond The PP1 does not support broadcast request packets Exception Responses lf a Modbus master device sends an invalid command to a PP1 or attempts to read an inva
69. on is provided to enable the users to install the Peak Performer 1 into a RS 485 network This system diagram consists of the PP1 RS 232 to RS 485 converter and master host controller TX alana T Pe COM2 RS232toRS485 RX Gna PP1 Taai an F i T Master Controller LEFI COM2 RS232 to RS485 PP 1 Converter Ad Power Supply Figure 42 System configuration diagram with basic connections 6 6 1 RS232 to RS485 Converters There are numerous manufacturers of RS232 to RS485 converters and the selection of the converter must be determined by the system engineer designer to meet unique requirements Page 61 7 0 Peak Performer 1 Users Manual Chromatographic Principles As an analytical system the PP1 RCP performs five primary functions 7 1 Sample injection Component separation Component analysis Integrated microprocessor system control with operator and data interface Sample Injection A standard air actuated VICI injection valve is used to inject samples Standard RCP analysis methods use stainless steel 1 cc sample loops An on column injection adapter is available from Peak Labs if smaller sample volumes are required using standard micro volume or Luer type syringes 7 2 Carrier Gas Purification Chromatographic instrument detection limit is directly related to carrier gas purity Improved carrier gas purity enables improved sensitivity Typical 99 999 Carrier Gas Specifications Pre Purifica
70. ontrol Registers See Table 3 below Page 59 Peak Performer 1 Users Manual PP1 Modbus Holding Registers Map 40014 40039 Spare ooo o oo Ud 40048 40049 S are o o ooo o o Soo oo 40058 40059 __ Spare ooo oo oo ooo o o 40068 40069 __ Spare o o oS ooo ooo oo Spare o ooo ooo g Spare 40088 40089 Spare SS o oo o o 40098 40099 Spare SSS d o d o Table 3 Modbus Holding Registers Supported by the PP1 Page 60 Peak Performer 1 Users Manual 6 5 Trend Analog Outputs There are seven independent analog outputs on the back of the PP1 The first six are tied to the Six impurities as trend outputs and the last channel is a simple recorder output These trend outputs are provided via 0 1 0 VDC screw terminals Each impurity can be independent scaled by entering the desired range e g 0 gt 1000 Oto 1000 ppb 0 1 VDC scale At the end of each run the analog trend signal is updated and holds until the end of the next run is completed As an accessory Peak can provide standard commercial VDC gt gt mA converters as needed 6 6 Setting up a RS485 Network The RS 485 specification supports two wire half duplex communications only one unit may transmit at a time but allows up to 32 users on a party line network NOTE The RS 422 specification supports four wire full duplex communications two units may transmit at a time and also allows up to 32 users on a party line network The following informati
71. ounds eluting from the column pass directly into a heated bed of mercuric oxide HgO Within this bed the following general reaction occurs X HgO solid gt XO Hg vapor where X is any appropriate reducing gas The liberated mercury vapor is quantitatively determined utilizing an ultraviolet 254nm absorption photometer located immediately downstream of the bed Page 84 Peak Performer 1 Users Manual Fused Silica Window i seals ends of cell Gas HgO Gas Outlet 254nm Reaction Inlet Optical Bed i i Bandpass I Filter E JLo o Hef lf tA Ua LAY 7 Z Fn E ZZZ ZZ f eN T E Z7 lt i Ue Silicon UV Lamp Fhotodiode TEN amp Amplifier eate sampling Cell Figure 70 Standard RCP Section The relative ease of measuring mercury vapor at low concentrations lends the technique its inherent sensitivity For carbon monoxide and hydrogen the equilibrium reactions are as follows CO HgO solid gt CQO2 Hg vapor H2 HgO solid gt H2O Hg vapor The hydrogen reaction undergoes approximately 15 conversion to mercury vapor in relation to carbon monoxide As a result the H2 sensitivity is roughly five times lower than carbon monoxide In contrast sensitivity to double and triple bonded hydrocarbons such as acetylene or ethylene is higher in relation to carbon monoxide C2H2 5 HgO solid gt H2O 2CQO2 5Hg vapor No
72. peak area calculation using a slightly later time value The peak areas of the two calculations are compared and if the peak area increases by more than 0 5 the mathematics package repeats the process The net effect is illustrated in Figure 65 where multiple hypothetical peak start points were evaluated The final value is represented by point 6 when the change in peak area became less than 0 5 Peak Maximum S So ise ise N N PEAK START PEAK END Figure 66 Progression of Peak End Time Calculation Using the newly established peak start and end times the mathematics package determines the normal detector baseline as illustrated in Figure 67 The signal contribution due to the peak passing through the detector can then be quantified by area calculation using time slices and signal differentials above the newly established baseline Page 79 Peak Performer 1 Users Manual E E a w D ou PEAK START PEAK END Figure 67 Peak Area Calculation The formula for peak area calculation can be expressed as Peak Area 12 x Hgt Hgte x t1 2 x Hgte Hgts x t2 2 x Hgts Hgta x ts where H gt the signal differential between the instantaneous baseline level and the peak signal value tx the time difference between data points Using a constant value for tx the peak area calculation simplifies to Peak Area tx xX Hgt Hgte Hgts Hgt
73. pecial retaining nut wrench to engage the nut slots and loosen the nut by 1 2 turn counterclockwise Do not fully remove the nut Lift the used bed to remove it from the detector Disconnect the 1 16 bed inlet tube from the used bed 0 Gently vacuum the bottom of the detector s bed inlet fitting to remove and shreds of graphite ferrule that may have fallen into the inlet fitting 11 If damage to the graphite ferrule is suspected fully remove the retaining nut and gently dig out the old ferrule Vacuum thoroughly and install a new ferrule and the nut onto the new bed before installation Examine for any graphite flakes prior to installation 12 Connect the new bed to the 1 16 bed inlet tube 13 Seat the new bed through the retaining nut gently through the graphite ferrule 14 Press the bed fully into the bottom of the detector s inlet fitting and tighten the nut to moderate resistance 15 Verify detector flow at the mercury scrubber outlet Re tighten the bed retaining nut if flow rate is lt 90 of the value noted in step 4 16 Power the analyzer ON 17 Energize the heater zones and allow several hours for stabilization 18 Re tighten the bed retaining nut 1 8 turn clockwise 19 Re install any bed insulation material into the detector s bed access opening 20 Re install the top cover 21 Allow bed stabilization for at least 12 hours FDS n ND m i CAUTION Use safety glasses and gloves when hand
74. pecific concentration range the RANGE button for the recorder function toggles through 4 choices of raw signal attenuation X1 X2 X4 X8 X16 X64 This function is similar to the RANGE switch on a chart recorder Peak Performer 1 Users Manual Manset Temporarily over rides the signal output with a known output voltage for test purposes Four MANSET options are available 0 00 VDC 0 25 VDC 0 5 VDC and 1VDC There is not any zero offset or full voltage scale adjustment within the PP1 if this function is a requirement Peak Labs recommends the use of standard commercial voltage converters attached externally to the analyzer Page Advances the user to the next screen 4 2 2 Analog Interface Connections All analog interface connections are made via the rear panel DIN connector To make a proper connection strip all wires back approx 3 8 unscrew the terminal locking screw fully insert the wire and tighten A common error is insufficient length of bare wire creating the condition where the terminal contacts only the wire insulation ANALOG 1 ANALOG 2 ANALOG 3 ANALOG4 ANALOG 5 ANALOG 6 RECORDER REMOTE START FID FLAME GEN ALARM Figure 19 Analog Output Connections 000000000 0000000000 COMMON GND COMMON GND COMMON GND COMMON GND COMMON GND COMMON GND COMMON GND COMMON GND FID FLAME GEN ALARM NOTE The analog outputs are locked if the Port 1 Protocol o
75. ram Current concentration data will be displayed as an overlay on the RUN screen as peaks are identified and quantified Page 19 Peak Performer 1 Users Manual 3 5 Calibration The Peak Performer 1 chromatograph determines concentration peak area to quantify the amount of contaminants in the sample gas The direct instrument response in units of uV sec is reported simultaneously as an overlay on the RUN CHROMATOGRAM SCREEN and in the AREA column on the CALIBRATION DATABASE SCREEN As the concentration peak area is determined the analyzer applies the pre programmed response factor as an inverse proportional factor to generate the reported concentration value PEAK CONCENTRATION PEAK AREA RESPONSE RESPONSE FACTOR 3 5 1 Establishing New Instrument Response Factors Connect a known calibration standard gas span gas to the analyzer at the SAMPLE IN port on the front panel If soan gas connection is made at the rear panel SAMPLE IN port ensure that the front jumper is connected between SAMPLE OUT and SAMPLE IN on the front panel Verify that sample is flowing freely through loop exit flow from the SAMPLE OUT should be 30 to 120 cc min Press the ESC or PAGE keys as needed to navigate to the RUN screen Press the SINGLE CYCLE RERUN key to toggle to SINGLE mode Press the RUN key to initiate analysis the P1 event program will be loaded automatically and executed Allow the analyzer to fully execute the event program Curr
76. rate 8 bit data 1 stop bit and no parity for AUTO and POLL modes The RS 232 settings for COM 2 port in MODBUS mode are 9600 baud rate 7 bit data 1 stop bit and even parity for Three modes of transmission are available AUTO or POLL or MODBUS e In AUTO mode the current PLC data string is transmitted at the end of analytical cycle without any request from the host computer e In POLL mode the PP1 will transmit the latest PLC data string only when prompted by the host computer This mode is recommended for use in a RS 485 network but can also be used for RS 232 connections e In MODBUS mode the PP1 will transmit the latest PLC data string only when prompted by the host computer See MODBUS uses manual for operational details Selecting the POLL mode on the MAIN SCREEN configures the PP1 to wait for a request before transmitting The master controller of the RS 485 network must first request data from the PP1 in order for receive the COM2 port output data The protocol to request data from the PP1 consists of 1 A start of transmission character 2 Followed by the unit serial number 3 An end of transmission character or STX character 02 hex SSSS ETX character 03 hex The requesting command format follows lt STX gt SSSS lt ETX gt where SSS serial number of unit is used as the RS 485 ID Page 53 Peak Performer 1 Users Manual 6 3 2 COM 2 Port PLC Output Format The COM 2 port output format consists of unit
77. rator to minimize baseline drift and create a smooth chromatogram orrseT 6 Alten gy SPAN o ppg 2 at Cons Foi Figure 50 Properly Flow Balanced Baseline Page 67 Peak Performer 1 Users Manual oreset a caren Ta span o certs Paty z Soo me l a BE c eal noe LET co T Th E yy ct s Figure 51 High FID flow from NV1 note rise after the V1 CCW command gt t wt N N i E sus Mas co UP Figure 52 Low FID flow from NV1 note drop after the V1 CCW commana Differences in COLUMN flow during normal and venting valve positions will be expressed as shifts in peak retention time compared to a chromatogram without any venting action Page 68 Peak Performer 1 Users Manual wll 20 40 60 80 100 120 140 160 180 200 220 240 Figure 53 Peak Shifting as a Result of Improper Vent Needle Valve Flow Comparison of retention times for un vented versus vented chromatograms will reveal improper adjustment of the vent flow control needle valve Careful adjustment of the vent needle valve will enable the operator to minimize peak retention drift and create a consistent chromatogram 7 5 Effects of Temperature and Flow on Analytical Columns The normal chromatogram can be affected by changes in column flow and temperature Be aware that changes of operating paramete
78. rmal life of the scrubber is 24 months under continuous use Replace and dispose of properly in accordance with local and federal regulations 8 2 Temperature Effects within the RCP Reaction Bed At a given carrier gas flow rate the concentration of mercury vapor entering the photometer cell is dependent upon two processes Page 85 Peak Performer 1 Users Manual 1 Thermal dissociation of mercuric oxide to free mercury vapor 2 Oxidation of reducing gases on the HgO bed These reactions proceed 2HgO gt 2Hgw O2 and X HgO gt Hgw XO The rate of each of these reactions is temperature dependent and not all compound reactions proceed to complete oxidation The thermal dissociation rate to Hgv roughly doubles for every 10 C increase in HgO detector temperature For the oxidation reaction of H2 gas the reaction does not proceed fully at temperatures below the sublimation point of HgO 315 C although higher detector temperatures do increase H2 sensitivity Relative Area Response vs Bed Temperature 0 8 0 9 0 6 0 4 H2 Response of 265 C value 0 2 90 115 140 165 190 215 240 265 290 Bed Temperature C 0 8 0 7 0 6 0 5 CO Response of 265 C value Page 86 Figure 71 RCP Temperature Response for H2 and CO Peak Performer 1 Users Manual H2 Area Response asa Function of Concentration SN 068 100
79. rs Manual Six Data Formats Used in the PP1 Analyzer UINT16 16 bit unsigned integer 0 to 65 535 INT 16 16 bit signed integer 32 768 to 32 767 UINT32 32 bit unsigned integer 0 to 4 294 967 295 INT32 32 bit signed integer 2 147 483 648 to 2 147 483 647 Boolean Packed Boolean Format 8CharString 8 character string format 16 bit Integer Format Unsigned and signed 16 bit integer formats are the simplest formats Each PP1address corresponds to one Modbus Holding Register If the format is unsigned the value range for the output registers is 0 to 65535 If the format is signed the value range is 32767 to 32767 32 bit Integer Format To accommodate values that can reach beyond the 16 bit range the Modbus Slave provides 32 bit integer format as an output option In signed and unsigned 32 bit integer formats each PP1 address corresponds to two 16 bit Modbus Holding Registers A 32 bit register represented in 32 bit integer format is passed via communications as two 16 bit registers High Order Register value 65536 Low Order Register value modulus 65536 Example Unsigned 32 bit Value 12345678 is passed in unsigned 32 bit integer format 12345678 OOBC614E Hex High Order OOBCHex Low Order 614EHex Example Signed 32 bit Value 12345678 is passed in signed 32 bit integer format 12345678 FF439EB2 Hex High Order FF43 Hex Low Order 9EB2 Hex Packed Boolean Format Bo
80. rs from final test conditions can require parametric adjustments i e peak detection parameters response factors valve timing within the analyzer Page 69 Peak Performer 1 Users Manual Name Conc Area R Time R Factor A Type H2 4203 4341021 48 8 3191 V co 347 5 4616126 106 8 13283 V 16 5 Uni 15 81 MS13X PEAK Column Temperature 105 C Carrier Flow 20 5 mlimin N2 eo ATTEN is San Ha Cons Poly Figure 54 Standard chromatogram The normal PP1 chromatogram Figure 54 is affected by changes in column temperature as illustrated in comparison with the chromatogram of Figure 55 In the circumstance of column temperature change an increase of 30C has shifted the late eluting peak carbon monoxide forward Early eluting peaks such as hydrogen are not significantly affected by changes in column temperature as interaction with column packing is minimal Page 70 Peak Performer 1 Users Manual Name Conc Area R Time R Factor A Type H2 413 5 1319343 49 2 3191 V co 343 2 4558519 90 2 13283 V 16 5 Uni 15 81 MS13X FEAK Column Temperature 135 C Carrier Flow 20 5 mi min N2 OFFSET 7 Atte az SPAN mo 4 eld aea hl 302 Ponk Tene 10 8 Loiteet 17 511 Hit Figure 55 Effect of 30C Increase in Column Temperature Column flow rate changes can directly affect peak retention times as peaks are pushed down the column faster or slower Comparison of Figure 56 with Figure 54
81. rted by the PP1 as a Slave Function 03 Read Holding Registers To read PP1 parameter values a Master must send the PP1 a Read Holding Registers request packet The Read Holding Registers request packet specifies a starting address and the number of 16 bit registers to read The Modbus registers are numbered from 40001 to 49999 This Modbus numbering corresponds to an address map of 0 to 9998 The PP1 responds with a packet containing the values of the registers in the range defined in the request See PP1 address map table to verify address range and content Read Holding Registers Packet Example The next example the PP1 s Modbus slave address is 92 and the master requests to read two parameters from the PP1 These two parameters are requested from Modbus registers 40013 and 40014 In accordance with the Modbus protocol holding register 40013 is numbered as address 12 when requested Slave Address 92 5C Hex Modbus Function 03 03 Hex Starting Register 12 000C Hex Num of Register 02 0002 Hex LRC Checksum 109 93 Hex 39 33 ASCII Request Packet non shaded background denotes the DATA field of the packet Starting Register Num of Registers 40013 2 SS pstefots ofofotc ofofojet sta Page 56 Peak Performer 1 Users Manual Response Packet Slave Modbus Byte Register 1 Register2 check Address Function Count Address 12 Address 13 The Master device receives the above data packet i
82. s Supply Calibration Gas Connection for Internal Soan Gas Blender Span Gas Supply Optional for Internal Blender Units Only Standard Start up Procedure Quick Start Sequence Column Conditioning Detector Conditioning Sample Analysis Calibration Establishing New Instrument Response Factors Shutdown and Transport Peak Performer 1 Operator Interface Set up Screen Set up Screen Upper Section Set up Screen Upper Section Button Functions Set up Screen Middle Section Power up Set up Screen Middle Section Button Functions Power up Set up Screen Middle Section Normal Set up Screen Middle Section Button Functions Normal Set up Screen Lower Section Error Messages on the Set up Screen Lower Section Clearing Error Messages on the Set up Screen Set up Screen Lower Section Button Functions Analog Interface Trend and Recorder Output Screen Analog Interface Screen Button Function Analog Interface Connections Analog Interface Wiring Calibration Database Screen Calibration Screen Button Functions Calibration Establishing New instrument Response Factors Analysis Database Screen 4 4 1 4 4 2 4 5 4 5 1 4 5 2 4 6 1 4 6 2 4 7 1 4 7 2 4 7 3 4 7 3 1 4 7 4 4 7 4 1 Peak Performer 1 Users Manual Analysis Screen Parameters Analysis Screen Button Function Event Program Editor Screen Event Program Commands Event Editor Screen Button Function Stream Selector Sequence Editor Screen Stream Selector Commands S
83. s preset within the analyzer External restrictors are not required It is important to measure the pressure applied to the SPAN GAS IN port as closely to the analyzer rear panel as possible 2 5 4 1 Span Gas Supply Optional For internal span gas blender units only Peak Labs offers an optional internal span gas blender for most analyzers Connection to the SPAN GAS IN port should replicate Figure 8 It is important to measure the pressure applied to the SPAN GAS IN port as closely to the analyzer rear panel as possible Nominal inlet soan gas pressure is 50 psig and flow is restricted inside the analyzer External restrictors are not required for these units SPAN GAS FEED SUPPLY SPAN GAS FEED SUPPLY FO mel TO PP1 SPAN GAS INLET Poke Figure 8 Span Gas Supply Flow Schematic Page 16 Peak Performer 1 Users Manual 3 0 Standard Start up Procedure Peak Labs recommends that the user read the entire operating manual prior to using the Quick Start sequence CAUTION Do not begin detector heating without carrier gas flow Damage to 3 1 g1 oa the detector may result Quick Start Sequence Confirm that all gas connections and supplies are properly made Remove the top cover of the instrument Disconnect the bed inlet tube from the column outlet and connect to the standby outlet l Figure 9 RCP Detector Showing Column Outlet and Standby Fittings Pressurize the carrier gas supply line to 60 to 10
84. serial number date and time stamp error alarm stream number followed by impurity data This data format is transmitted at the end of every run automatically if the COM 2 mode is set to Auto This format uses a general protocol envelope This envelope consists of a start of transmission character followed by data and end of transmission character The start of transmission indicator is a STX character 02 hex and the end of transmission indicator is a ETX character 03 hex The fields within each record are defined as follows lt STX gt SSS YYYY MM DD HH MM SS E X N AREA CONC N AREA CONG N AREA CONC lt ETX gt SSS Serial Number of Unit This is also used as the RS 485 unit ID YYYY MM DD Date 2013 12 05 HH MM SS Time 12 23 44 12 hours 23 minutes 44 seconds E General Error Alarm 0 No Error 1 Error e X Stream Number e N Name of Impurity x6 e AREA Are of Impurity x6 e CONC Concentration of Impurity x6 NOTE The least significant decimal of the concentration resolution represents 0 1 ppb CONC reading of 1 represents a 0 1 ppb concentration level 6 4 Modbus Protocol and Register Map for Peak Laboratories Devices This section describes the Modbus protocol for Peak Laboratories PP1 analyzer It is assumed that the reader is familiar with the Modbus protocol and serial communications in general The following rules define the protocol for information transfer between a Modbus MA
85. shows the decreased peak retention times Name Conc Area R Time R Factor A Type H2 136 8 436425 32 4 3191 V co 201 5 2675877 T 13283 Y 16 5 Uni 1S 81 MS13X A XAK Column Temperature 105 C Carrier Flow 41 2 mlimin N2 a ATTEN in SPAH He cons y 4 Cr ee ie EEJ He Figure 56 Effect of 2X Increase in Column Flow Rate Page 71 Peak Performer 1 Users Manual 7 6 Peak Identification and Quantification A typical chromatographic peak is generated by the detector s electronic signal as a function of time Vout 2000000 Vout 45000 Time hie Figure 57 Typical Chromatographic Detector Signal Showing a Peak Chromatographic peaks in the PP1 are measured by establishment of the normal stable detector signal then determining the added electronic signal that was created by the peak passing through the detector Since the analyzer is monitoring the detector electronic signal over time the added signal is measured in real units such as volt sec By virtue of a conversion factor called the Response Factor the volt sec signal can be directly related to concentration units Page 72 Peak Performer 1 Users Manual PEAK START PEAK END Figure 58 Illustration of Measurement of Chromatographic Peak Area Note The PP1 analyzer supports only area based concentration determinations Determinations based upon peak height are not currently available The f
86. tation required 10 Feed the new lamp s connector and wire back through the opening in the lamp enclosure 11 Plug the lamp connector 2 pin white plastic Molex into the detector control board Note that the connector is keyed and will insert easily in only one orientation 12 Power the analyzer ON Allow 10 minutes for the lamp to partially stabilize 13 Note the Viamp voltage on the main screen 14 Adjust the Viamp value to gt 1800 mV by rotating the lamp within the lamp block DO NOT LIFT THE UV LAMP FROM THE BLOCK 15 Tighten the 2 thumb nuts securing the lamp in the block 16 Re install lamp enclosure cover 17 Re install the 2 thumb nuts securing the lamp enclosure cover 18 Install the analyzer top cover 19 Energize the heater zones and allow several hours for stabilization before use ae ae hea OO Or p CAUTION Safety glasses are required Never look at an energized UV lamp without safety glasses UV radiation can contribute to the formation of cataracts of the human eye CAUTION Do not handle the clear quartz portion of the new lamp with bare fingers CAUTION UV lamps are uncoated fluorescent lamps and as such contain small quantities of mercury Hg Disposal of UV lamps should be made in accordance with local or federal regulation Consult with local and federal authorities for proper disposal instructions Page 95 Peak Performer 1 Users Manual 9 7 RCP Bed and Window Retain
87. tings configurations between the Host PC and the PP1 As shown in figure 34 g NOTE Port number is controlled by host computer and cannot exceed Port 16 O Prit Prints all concentration data of selected CSV file O Ei Exit Viewer application 5 5 1 1 Communication Setting Window The Communication Settings window is shown in figure 34 This screen displays the serial communication settings used by the PC to communicate to the PP1 The baud rate data bits and stop bits settings should match all of the settings in figure 16 baud rate 38400 data bit 8 stop bit 1 The COM port number must match the COM port designated by the PC s terminal The COM Port number is determined by which COM port the serial cable is plugged into on the PC not the PP1 Clicking the OK button will configure the COM port to the correct options and save the settings in a file on the computer Com Port 6 Cancel Baud Rate f 9600 f 19700 ff 38400 Data Bits Stop Bits 7 ff 8 w f 2 Figure 34 Viewer Software Communications Setting screen Page 45 Peak Performer 1 Users Manual Once the CSV file is opened the Viewer window automatically updates and shows concentration data Figure 34 is an example with consecutive runs The third run of concentration data at 08 43 is displayed in RED to denote that there was a general error in the PP1 during this run The error was cleared before the end of the next run at 08 51
88. tion High Pressure Cylinder or Liquid Dewar Gas Type No Ar He alternative Air Carrier Gas Specifications Pre Purification High Pressure Cylinder or Zero Air Generator Gas Type 79 N gt 2 21 O2 Page 62 Peak Performer 1 Users Manual THC Concentration lt 10 ppm CO Concentration lt 10 ppm CO Concentration lt 1000 ppm H2 H2O Concentration lt 100 ppm Synthetic air sources suitable for use as FID Air include Zero and Breathing Quality grades CAUTION Compressed room air is not recommended unless refined by regenerative drying and combustion purification Consequently the analyzer s minimum detectable quantity MDQ would be quite high gt 10 ppm unless the carrier gas is purified A catalytic combustor is included as an integral component of the carrier gas flow path of the RCP equipped PP1 Hydrogen and Carbon Monoxide carrier gas impurities are reduced to less than 10 ppt by this combustor Internal Metallic Catalytic Combustor Specifications Maximum Flow rate gt 300 cc min lt 5 L min Gases Purified No Ar He or Air alternative H2 Concentration outlet lt 10ppt Expected Life Infinite Regenerable Page 63 Peak Performer 1 Users Manual 7 3 Component Separation Component separation is normally performed by isothermal packed analytical columns Column materials vary by application and are noted in the Test report documentation Contact Peak La
89. tream Selector Program Editor Screen Button Function Run Chromatogram Screen Run Screen Button Functions Continuous Monitoring Analysis Manual Screen Sub Screen of Run Screen Manual Screen Button Functions Display Screen Sub screen of Run Screen Display Screen Button Functions Viewer Software System Requirements Installing the Viewer Software Starting the Viewer Software COM1 COM2 Port and Cable Wiring Viewer Software Window File Menu on the Viewer Taskbar Communication Setting Window Viewer Line Details Window Start Menu on the Viewer Taskbar Stop Menu on the Viewer Taskbar Chrom View Window and Chromatogram Viewer Window Chromatogram Files File Menu on the Chrom Viewer Taskbar Viewer Menu on the Chrom Viewer Taskbar Communication Port Protocols and Data Formats COM1 COM2 Port and Cable Wiring Port 1 Protocol COM 1 Port Settings Peak View Output Detector Output External Start Command String Detector Signal Data String Port 2 Protocol COM 2 Settings COM 2 Port PLC Output Format Modbus Protocol and Register Map for Peak Devices Mode of Transmission Modbus Packet Structure Packet Communications Modbus Data Format Broadcast Packets Trend Analog Outputs Setting up a RS485 Network RS232 to RS485 Converters Page 6 Peak Performer 1 Users Manual Chromatographic Principles Sample Injection Carrier Gas Purification Component Separation Flow Balancing Venting Back flushing Ef
90. ture Zone Out of Range e Temperature Zone Disabled e Detector Zeroing Target Error e Vlamp Low Voltage Out of Range RCP analyzers Only e FID Flame Temperature Out of Range FID Analyzers Only e Event Program Load Error e Stream Selector Program Error Page 26 Peak Performer 1 Users Manual e System Parameters Corrupted e Parameter Change Update Needed e Detector Power Disabled For PDHID amp TCD Analyzers Only 4 1 4 2 Clearing Error Messages and on the Set up Screen Lower Section Figure 15 Typical RCP Vlamp Error Message All error messages except PARAMETER UPDATE can be cleared at any time by pressing the ACCEPT button However if the error condition continues to exist the error message may re appear Accept Allows the user to acknowledge and clear error messages 13 Moves the cursor upwards ie Moves the cursor downwards Page Advances the user to the next screen 4 1 4 2 1 Set up Screen Lower Section Button Functions The PARAMETER CHANGE UPDATE NEEDED error message can only be cleared when the analyzer is not performing an analysis i e is in IDLE mode The parameter update action forces a complete re write of permanent memory and is irreversible Peak Labs recommends reviewing all parameter screens before performing a parameter update Page 27 Peak Performer 1 Users Manual Figure 16 Parameter Change Error Message Accept Allows the user to initiate permanent upd
91. used scrubbers should be made in accordance with local or federal regulation Consult with local and federal authorities for proper disposal instructions The Hg scrubber has a conservative nominal life of 5 000 continuous hours Scrubber replacement is recommended each six months of the analyzer use Power the analyzer OFF Allow the detector to cool to below 100 C Remove the analyzer top cover Snap the used scrubber out of the black plastic retainer clips Holding the end cap of the scrubber to ensure that it remains intact slide the clear plastic detector outlet tubing off the end of the used scrubber 6 Install the new scrubber into the clear plastic detector outlet tubing 7 Snap the new scrubber into the black retaining clips 8 Install the analyzer top cover 9 hank a ee Power ON the analyzer 0 Energize the heater zones and allow several hours for stabilization before use CAUTION Safety gloves are recommended to handle mercury scrubbers Never open the mercury scrubber CAUTION Disposal of used scrubbers should be made in accordance with local or federal regulation Consult with local and federal authorities for proper disposal instructions Page 92 Peak Performer 1 Users Manual 9 5 Adjusting RCP Viamp UV Lamp Value v ye a 4 P 4 UV Lamp Housing and a Se a NS Figure 77 Location of the UV Lamp Protective cover removed Page 93 Peak Performer 1 Users Manual
92. x Figure 36 Viewer Detail screen showing raw analysis data The information on the screen is linked to run 08 43 displayed in figure 35 5 5 2 Start Menu on the Viewer Taskbar File Start Stop Chrom View Event Info Upload Single Run Cycle Run Stream Run Figure 37 Start menu on the taskbar Page 47 Peak Performer 1 Users Manual The Start menu contains the following commands ee Single Run Single Run selection commands the PP1 to start a Single Run Cycle Run Cycle Run option commands the PP1 to start a continuous Cycle Run stream Run selection commands the PP1 to start a Stream Selection Run This operation only function if the Stream Selection option is installed 5 5 3 Stop Command on the Viewer Taskbar The Stop Command selection instantly sends a command the PP1 to terminate the current run immediately 5 5 4 The Chrom View Menu and Chromatograph Viewer Window The Chrom View menu selection opens the Chromatograph Viewer window Two methods can open the Chrom Viewer window 1 The first method is to select the Chrom View menu selection from the Viewer taskbar and then select a chm file to display 2 The second method of opening the Chrom Viewer is double clicking one of the concentration values displayed in the Viewer window Using either method after the chromatogram data is loaded the display can be adjusted by the Offset Attenuation and Span scrol
93. xide and oxygen HgO solid heat gt Hg vapor O2 This reaction creates a continual low level background of Hg vapor within the detector The reaction can be driven backwards if the O2 presence is high recreating non reactive HgO The sensitivity of the HgO bed to this back reaction decrease with exposure to O2 therefore the O2 upset in the chromatogram tends to diminish with repeated injections of O2 samples To achieve maximum analyzer performance when measuring O2 samples Peak Labs recommends continuous O2 sample cycling to minimize surface carbon reactions Page 83 Peak Performer 1 Users Manual 8 0 Reducing Compound Photometer RCP CAUTION Do not begin detector heating without carrier gas flow Damage to the detector may result Le CAUTION Never energize heaters of the instrument unless carrier gas flowing Be sure to put the RCP detector on standby flow before conditioning columns CAUTION The maximum detector operating temperatures for the RCP is 295 C The RCP detector does not normally require conditioning treatment however it does require 18 to 24 hours at normal operating temperature to achieve optimum stable performance Normal detector operating temperature for the RCP is 265 C although operating temperatures vary with the specific application The table below illustrates some typical compounds and detection capabilities of the RCP 8 1 Reducing Compound Detection Comp

Peak Performer 1 RCP (910- Series) User Manual

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