DOD Technologies ChemLogic 4 User Manual Download Page 10

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DC-ITD-CL4andCL8MAN01.A

www.dodtec.com

NOV 2018

815-788-5200

CL4 & CL8 Manual

WARNING:

Electric Shock is possible, please use caution when accessing this zone.

WARNING:

Moving Parts and Hand Crushing possible. Please watch hand placement when working
near this zone.

2.1.2 ChemLogic 4 & 8 Danger Zones

Please be aware of the following danger zones on the ChemLogic 4 and 8 continuous gas detection
equipment. Each zone contains warning labels for operator safety. Label meanings/descriptions can be found
in the above table

This danger zone is in the service access point of the unit. Users
should be aware of hot surfaces and electrical shock.

This danger zone is located on the gate assembly. During
operation, operators could pinch fingers if not aware of hand
placement.

This danger zone is located on the right exterior of the unit. This
area warns of electrical shock areas within the service door of the
machine.

Summary of Contents for ChemLogic 4

Page 1: ...ChemLogic 4 8 Continuous Gas Monitor User Manual ...

Page 2: ...2 DC ITD CL4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual DOD Technologies INC 675 Industrial Drive Bldg A Cary IL 60013 Phone 815 788 5200 Fax 815 788 5300 ...

Page 3: ... sole responsibility that the product described as Equipment Name Continuous Gas Monitor Equipment Description Detection and measurement of toxic gases Model CL4 CL8 Serial number s _______________ Complies with the requirements of the following European Directives Machinery Directive 2006 42 EC Electromagnetic Compatibility Directive 2014 30 EU RoHS Directive 2011 65 EU Main standards considered ...

Page 4: ...AL 11 2 1 4 Output Wiring Knockouts 11 2 1 5 Touch Screen Display 11 2 1 6 Keyed Service Door Access 11 2 1 7 A C Power Switch 11 2 1 8 Flow Adjustment 11 2 1 9 ChemLogic Paper Tape 11 2 1 10 Maintenance door 11 2 1 11 Take up reel 12 2 1 12 Tubing Connections 12 2 2 Maintenance area 12 2 3 Internal Layout Service area 12 2 4 Password Security 13 2 5 USB Memory Stick 14 Chapter 3 Installation 15 3...

Page 5: ...tion 25 CL4 CL8 Menu Overview 25 5 1 Initialization 25 5 2 Setup Main Menu 26 5 2 1 Gas Alarm Settings Menu 27 5 2 2 Set Date Time 27 5 2 3 Load Tape 28 29 5 2 4 Flow Adjustment 29 5 2 5 Calibration Factors 30 5 2 6 Set Test Outputs 31 5 2 7 Factory Settings 32 5 2 8 Event History 32 5 3 Concentration Log 33 5 3 1 Concentration Configuration 33 5 4 Analysis Mode 34 5 5 1 Point Detail screen 35 5 5...

Page 6: ...le 4 Points per Module PN 2 500 011 48 B 3 8 Point Module PN 2 500 012 49 B 4 Optional Mechanical Relays 50 B 4 1 Optional Mechanical Relay Wiring 51 B 5 OPC Interface PN 2 500 501 53 Appendix C System Specifications 54 Appendix D System Event Messages 55 Appendix E Gas Specifications 57 Appendix F USB Memory Stick Data 59 F 1 Alarm Event files ZG CSV 59 F 2 TWA Data Logs TYYMMDD CSV 60 F 3 Concen...

Page 7: ...mation and storing it in memory The CL 4CL8 triggers relays for each individual point for two levels of gas concentrations These programmable limits are factory set at 1 TLV and 2 TLV for their respective gases Each point may be up to 300 feet 91 44 m from the CL4 CL8 location This allows operators to monitor gas concentrations in an area removed from the location where gas may actually be leaking...

Page 8: ...change results in a loss of reflected light across the ChemLogic tape This loss of reflected light is detected by the advanced optics system in the ChemLogic 4 8 The ChemLogic 4 8 will then report an appropriate gas concentration reading and or a gas alarm 1 6 Time Weighted Average TWA During analysis the CL4 CL8 stores the TWA information every 8 hours referred to as a cycle The system retains th...

Page 9: ...njury Please avoid or take caution when working near this zone WARNING Protective Earth Ground Terminal Intended for connection to external conductor for protection against electric shock in case of fault ATTENTION Please read operators manual for all instruction for this machine If manual is not in country s native language requested updated manual before use of equipment Output Wiring Knockouts ...

Page 10: ...gic 4 and 8 continuous gas detection equipment Each zone contains warning labels for operator safety Label meanings descriptions can be found in the above table A This danger zone is in the service access point of the unit Users should be aware of hot surfaces and electrical shock B This danger zone is located on the gate assembly During operation operators could pinch fingers if not aware of hand...

Page 11: ...ccess The door uses a key lock to restrict internal access See section 2 3 for detailed information on the service area 2 1 7 A C Power Switch A C power is connected on the right side panel with a standard cable The on off power switch is located adjacent to the power cable connection 2 1 8 Flow Adjustment Flow adjustments for all 4 8 points are located on the front panel Refer to section 5 2 d re...

Page 12: ... side of the CL4 CL8 See section 3 3 for information on connecting the sample and exhaust tubing See also Appendix C for essential information on transport times for gas from sampling point to the CL4 CL8 2 2 Maintenance area The maintenance area allows easy access for changing ChemLogic tape in the CL4 CL8 Figure 2 2 shows the internal layout with the access panel open See section 3 5 for tape in...

Page 13: ...y Access to many of the features is controlled through password protection which is entered through the screen displayed in figure 2 4 Figure 2 4 DANGER Turn off the unit and disconnect unplug A C power to the unit before opening the Service Door Inside w Service Door open Back of Service Door OPTIONAL 4 20ma output Output Connection Block USB Memory Stick Access Pump Power Supply ...

Page 14: ...e If you forget or lose your password please contact DOD Technologies INC See Chapter 7 for contact information 2 5 USB Memory Stick The CL4 CL8 uses a USB Memory Stick to store historical information including concentration logging event history configuration information and TWA data The use of higher speed USB Memory Stick 2x etc may not be compatible with the CL4 CL8 USB Memory Sticks may be pu...

Page 15: ... Two individuals should lift the unit into its desired location while the third person secures the device into a mounted position If the device must be manually handled follow the following steps each time 1 Size up the Load Check if the weight of the object is listed on it If not push pull gently kick or rock the object to be moved before you attempt to move it get a feel for its weight size and ...

Page 16: ... not the toes Use the correct grip Have a firm grip by using the palms and the base of the fingers Don t just use your fingertips as this can cause strain on the hands wrists and forearms Lift Smoothly Grip the load firmly and hold it close to your body Keep the heaviest side closest to your body Brace tighten your stomach muscles Remember to breathe out when you lift However remember that bracing...

Page 17: ...17 DC ITD CL4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual 3 2 Mounting Figure 3 1 Front ...

Page 18: ...18 DC ITD CL4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual Figure 3 2 Figure 3 4 Top Right Side ...

Page 19: ...section 6 2 to open the service door Remove the four 4 mounting screws shown in figure 3 5 to detach the manifold Remove the 4 lock nuts holding the cover plate over the unused manifold opening Remove the cover plate Align the manifold inside the CL4 CL8 with the holes in the new position Replace the screws holding the manifold in place and tighten accordingly Replace the cover plate over the unus...

Page 20: ...optional 4 to 20 ma modules See Appendix B for a listing of output module connections 3 6 1 Standard Output Relay Module Wiring The standard output module requires an external 24V supply connected to V1 and V2 see Appendix B Outputs 0 15 are powered through V1 while outputs 16 31 are powered through V2 Each output can handle up to 0 2 Amps with a total maximum current of 1 6Amps to each group of 1...

Page 21: ...hile inserting the wire into the round shaped hole 4 While holding the wire in place remove the screwdriver which closes the clamp onto the wire 5 IMPORTANT Be sure the wire is inserted completely into the hole Failure to do so could result in system failure electrical shock 6 To remove a wire re insert the screwdriver in the hole as described in step 1 and gently pull the wire out while the sprin...

Page 22: ... 6 3 Optional 8 Point Relay Module Item 2 500 012 See Appendix B for a complete list of terminal connections on the optional output block IMPORTANT Verify that all I O unit terminal screws are securely tightened even if they are not used DANGER Before doing any wiring modifications be sure that power to the CL4 CL8 is disconnected IMPORTANT Verify that all I O unit terminal screws are securely tig...

Page 23: ... is always in the normally high state When latched outputs are selected section 5 2 f any fault or alarm that occurs will remain until the fault reset button is touched If non latching outputs are selected the output will reset automatically if and when the condition that caused the fault alarm goes away NOTE A message is added to the event log each time the fault reset button is touched 4 5 Conce...

Page 24: ...ded to retain historical and performance information including events alarms and gas concentrations USB Memory Sticks are available from DOD technologies see Appendix A and at most retail electronic stores See section 6 4 for information on inserting and replacing a USB Memory Stick See also Appendix F for information on the data stored on the USB Memory Stick 4 8 Setup Complete Enter analysis ...

Page 25: ...s h Events History i Fault Reset j Start Analysis III Concentration Log sec 5 3 IV Analysis 5 buttons 8 points w detail sec 5 4 a Setup b Concentration Log c Event History d Silence e Fault Reset f Point Detail 1 8 V USB Memory Log sec 5 5 VI Time weight average sec 5 6 Legend User Screens No Password Required Administrative Screens Administrator Password Required Service Screens Service Password ...

Page 26: ...rom the analysis screen section 5 5 Figure 5 4 below shows the setup screen and explains the various buttons Figure 5 4 View Reset tape usage counter Section 5 2 c Set system Date Time section 5 2 b Touch to reset all active faults alarms Touch to Start Analysis Section 5 5 Touch to display version and configuration information Service password required Flow adjustment section 5 2 d Gas selection ...

Page 27: ...ection menu from which you may either select a new gas or touch the Cancel button Touching any of the alarm level numeric displays will bring up the keypad to change the alarm level The valid alarm levels are listed in Appendix X for each gas An invalid alarm level entry will bring up an error message The toggle switch to the right of each point allows the individual points to be disabled when not...

Page 28: ... LOAD TAPE button on the setup screen brings up the screen shown in figure 5 7 Figure 5 7 IMPORTANT After entering the new date time you must touch the Apply Changes button to update the system date time Touch to reset tape counter after installation Enable Disable Tape Days remaining counter fault Open Close gate as needed to install tape To exit screen you must press this button to verify optics...

Page 29: ...the tape is installed and aligned correctly by using the OPEN CLOSE GATE button as needed Once you have verified that the tape is installed correctly you can touch the YES button to recalibrate the optics for the new tape or press NO to return to the setup menu 5 2 4 Flow Adjustment Touching the ADJUST FLOW button on the setup screen brings up the screen shown in figure 5 9 along with advancing th...

Page 30: ...p screen brings up the screen shown in figure 5 10 This screen requires administrator password access Contact DOD see chapter 7 for information on the use of Calibration Factors Figure 5 10 NOTE There may be a slight delay between the time the knob is turned and the updated reading is reflected on the screen Adjust the knob slowly and wait a few seconds to verify that the level is accurate Adjust ...

Page 31: ... the user to test relays and analog outputs Two other features on this screen 1 Require a password to exit analysis If enabled the level 1 password must be used for anyone to exit the analysis screen When disabled a simple Are you sure window appears 2 Idle Timeout Set from 1 60 minutes to trigger a fault when the machine is left in idle Setting this to 0 minutes disables the fault Figure 5 11 NOT...

Page 32: ... figure 5 11 Figure 5 12 The event history is display with the most recent event alarm at the top using the color coding listed in table 5 1 Table 5 1 Green Normal operation messages Yellow Fault messages Blue Informational display messages non critical Orange Critical Service messages Red Gas alarm messages Touch the BACK button to return to the setup menu Touch inside this message area and then ...

Page 33: ...the screen allow scrolling through the most recently logged readings Touch the configuration button to set the logging parameters 5 3 1 Concentration Configuration Figures 5 12 b shows the concentration configuration screen Four levels of logging area available depending on your needs 1 Alarm Level 2 Logging on when any channel is above alarm level 2 2 Alarm Level 1 Logging on when any channel is ...

Page 34: ...of 2 seconds to a maximum of 10 minutes 600 seconds 5 4 Analysis Mode Figures 5 13 shows the main analysis screen which is entered either automatically during power on or by touching the START ANALYSIS button on the setup screen Figure 5 14 shows the main analysis screen with a detailed view of the information on point 3 Figure 5 13 Figure 5 14 ...

Page 35: ...ysis mode Alarm levels may be changed by touching the numeric display area for the appropriate alarm Similarly the comments related to this point may be edited by touching anywhere in the box displayed for comments 5 5 USB Memory Stick log Figures 5 16 shows the CF Log which is displayed by touching the CF Files button on the concentration log Section 5 3 This screen allows the user to browse ever...

Page 36: ... highlighted Touch DISP to display contents of selected folder or file Delete selected item Arrow keys to scroll through list of items Use these keys to navigate when viewing a file TWA information for current analysis cycle Use the arrow keys to scroll through the previous 5 analysis cycles Details of selected analysis cycle Start End Date Time actual analysis time and cycle number sequencial Pea...

Page 37: ...seconds elapsed since the cycle started The CL4 CL8 retains the most recent 5 analysis cycles up to 40 hours in addition to the current cycle in memory The previous cycles are accessed by touching the View History button which brings up the screen shown in the lower right of figure 5 17 Use the up and down arrows to review the previous 5 cycles in this screen ...

Page 38: ...or Access To open the door 1 Insert the key provided into the slot and rotate counter clockwise to unlock the unit 2 Turn the latch counterclockwise to unlatch the door 3 Open the door for service as required When service is complete be sure to close the service door and secure the keyed latch to the closed position Verify that the service door cannot be pulled open secure the door using the key t...

Page 39: ...ection as shown G Feed the tape as shown with the arrows in figure 6 1 1 From the bottom reel 2 Around the bottom tape guide 3 Through the opening between the optic blocks 4 Between the rubber roller and the capstan 5 Around the top of the upper tape guide 6 Fold the end of the tape and insert into the slot in the empty tape reel Be sure the tape is wound clockwise around the take up reel Figure 6...

Page 40: ...48 GeH4 Germane 6 Months 780248 H2SE Hydrogen Selenide 6 Months 780248 PH3 Phosphine 6 Months 780248 SiH4 Silane 6 Months 780248 TBA Tertiary Butyl Arsine 6 Months 780248 H2S Hydrogen Sulfide 6 Months 780248 HCL Hydrogen Chloride 1 Month membrane 60009 Housing 60010 membrane OR 2 800 013 HF Hydrogen Fluoride 1 Month membrane 60009 Housing 60010 membrane OR 2 800 013 BF3 Boron Trifluoride 1 Month m...

Page 41: ...e adjusted whenever a new ChemLogic tape or particulate filter is installed See section 5 2 4 6 6 USB Memory Stick replacement It is highly recommended to keep a USB Memory Stick inserted in the unit at all times The lower right corner of the analysis screen will show when a card is properly inserted see section 5 4 To insert or replace a USB Memory Stick follow these steps below 1 Locate USB slot...

Page 42: ...k and how to access it on a personal computer 6 7 Apply grease periodically The cam attached to the gate motor should be greased every 6 months to prevent wear Apply a small amount of number 2 type petroleum or synthetic grease such as McMaster Carr 1378K27 to the rounded portion of the cam See Figure 6 4 Top of gate mechanism Bottom of gate mechanism Figure 6 4 Grease may be applied either from t...

Page 43: ...ermanent discontinuation Please contact DOD Technologies for the safe return of your equipment All discontinued units will be accepted back by DOD Technologies so proper recycling may take place For information on how to return the unit contact us using the below information Phone Support M F 8 30am 5pm Central Time Zone 815 788 5200 Service Center 675 Industrial Drive Bldg A Cary IL 60013 Visit o...

Page 44: ...44 DC ITD CL4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual Appendix A Accessories Cassettes ...

Page 45: ...45 DC ITD CL4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual ...

Page 46: ...2 13 Point 8 Alarm Level 1 14 Point 8 Alarm Level 2 15 Critical Fault 16 Watchdog 17 Power On 18 Analysis Mode 19 General Fault 20 Gas Alarm Level 1 21 Gas Alarm Level 2 22 Critical Fault 23 General Fault 24 Gas Alarm Level 1 25 Gas Alarm Level 2 26 Blue Light 27 Audible Alarm 28 Green Light 29 Orange Light 30 Red Light 31 Can be Energized De Energized Output Relay Connector 0 1 Output 2 3 4 5 6 7...

Page 47: ...1 4 to 20 ma 1 I1 I 1 AG1 AG 1 FG FG Point 2 4 to 20 ma 1 I2 I 1 AG2 AG 1 FG FG Point 3 4 to 20 ma 2 I3 I 2 AG1 AG 2 FG FG Point 4 4 to 20 ma 2 I4 I 2 AG2 AG 2 FG FG Point 5 4 to 20 ma 3 I1 I 3 AG1 AG 3 FG FG Point 6 4 to 20 ma 3 I2 I 3 AG2 AG 3 FG FG Point 7 4 to 20 ma 4 I3 I 4 AG1 AG 4 FG FG Point 8 4 to 20 ma 4 I4 I 4 AG2 AG 4 FG FG Module Address Module 1 6 Module 2 8 Module 3 10 Module 4 12 I...

Page 48: ...g Description Module Connection Symbol Point 1 4 to 20 ma 1 I1 I 1 AG1 AG 1 FG FG Point 2 4 to 20 ma 1 I2 I 1 AG2 AG 1 FG FG Point 3 4 to 20 ma 1 I3 I 1 AG3 AG 1 FG FG Point 4 4 to 20 ma 1 I4 I 1 AG4 AG 1 FG FG Point 5 4 to 20 ma 2 I1 I 2 AG1 AG 2 FG FG Point 6 4 to 20 ma 2 I2 I 2 AG2 AG 2 FG FG Point 7 4 to 20 ma 2 I3 I 2 AG3 AG 2 FG FG Point 8 4 to 20 ma 2 I4 I 2 AG4 AG 2 FG FG Module Address Mo...

Page 49: ...anual B 3 8 Point Module PN 2 500 012 TR SLD 24V V COM TR 0V V 0 1 2 3 4 5 6 7 Labeled connector on each 8 Point Relay Module See drawing below Module Address 8 Point Relay Module 7 IMPORTANT Use only connections above shown in grey Other connections are pre wired in the CL8 ...

Page 50: ...vel 2 5 Point 4 Alarm Level 1 6 Point 4 Alarm Level 2 7 Point 5 Alarm Level 1 8 Point 5 Alarm Level 2 9 Point 6 Alarm Level 1 10 Point 6 Alarm Level 2 11 Point 7 Alarm Level 1 12 Point 7 Alarm Level 2 13 Point 8 Alarm Level 1 14 Point 8 Alarm Level 2 15 Critical Fault Fault 16 SPARE UNUSED 17 Power On 18 Analysis Mode Out of Analysis 19 General Fault Maintenance 20 Gas Alarm Level 1 21 Gas Alarm L...

Page 51: ... is a typical wiring diagram to connect a Form C Relay to any of the sinking outputs described in Appendix Section B 1 Note You must connect 24V to both V1 V2 AND connect 24V to both V1 V2 on the connector as shown below 0 1 Output 2 3 4 5 6 7 8 9 10 11 12 13 14 15 V1 V1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 V2 V2 ...

Page 52: ...4andCL8MAN01 A www dodtec com NOV 2018 815 788 5200 CL4 CL8 Manual 24 V 24 V N O COMM ON N C COIL Form C Relay A1 A2 DOD Customer 24V Sinking Output Module See Section B 1 Attach to desired output 0 31 on connector ...

Page 53: ...200 CL4 CL8 Manual B 5 OPC Interface PN 2 500 501 Use the RJ 45 connector pictured below to connect the CL4 CL8 to the I P network when the optional OPC Interface OPC I F is specified The connector is located on the inside of the machine next to the top DIN rail ...

Page 54: ... 5 16 ID Polypropylene 25 ft max length Sample Lines 8 1 4 OD x 3 16 ID Teflon FEP 300 ft max length Power A C Power 100 120 VAC 50 60 HZ 220 240 VAC 50 60 HZ Standard Output Relays Rated Output Voltage DC 24V Rated Output Voltage Range DC 20 4V 28 8V Maximum Load Voltage 0 2A Connection 1 6A maximum pts 0 15 pts 16 Output Protection None Transport Transport Times Approx 36 Seconds at 250 ft 18 se...

Page 55: ...rror Check Wiring or Optic 1 30011 Optic 2 Communication Error Check Wiring or Optic 2 30012 High Background Tape Advance Fault Check replace tape 30013 LED Failure Optic 1 Possible Tape alignment problem 30014 Warning Default values restored Reconfigure Calibrate 30015 Pump Timeout Error Pump failure or system problem 30016 Tape Advance Problem Service required 30017 Optic 1 LED Failure Service r...

Page 56: ...ature fluctuation O2 60018 K Factor all pts 1 000 60019 K Factor some pts 1 000 60020 Reference fluctuation point X 60028 Power UP Time 60029 PT X Disabled 60030 Tape Counter Reset 60031 Simulation Mode 60032 Simulation Enabled Point 1 70000 DIAGNOSTIC STATUS OK 70001 8 Hour no conc all points 70002 Analysis Start Time 70003 Last analysis no Conc found ...

Page 57: ... 120 Mineral Acids HBR HBR 0 20 ppm 0 2 20 3 6 1 400 012 60 Day Hydrides AsH3 AsH3 0 500 ppb 4 7 500 50 100 1 300 010 60 Day Hydrides B2H6 B2H6 0 1000 ppb 31 5 1000 100 200 1 300 010 60 Day Hydrides PH3 PH3 0 1500 ppb 8 4 1500 300 600 1 300 010 60 Day Hydrides SiH4 SiH4 0 50 ppm 0 7 50 5 10 1 300 010 60 Day Hydrides H2S H2S 0 25 ppm 0 1 25 10 20 1 300 010 60 Day Mineral Acids HCL HCL 0 15 ppm 0 2 ...

Page 58: ... 1 600 010 NO2 NO2 NO2 0 100 ppm 0 3 100 3 6 1 600 511 Oxidizers CL2 CL2 0 3200 ppb 50 1 3200 500 1000 1 550 010 Oxidizers NO2 NO2 0 30 ppm 1 3 30 3 6 1 550 010 Oxidizers F2 F2 0 3200 ppb 105 6 3200 1000 2000 1 550 010 Pyrolyzer M A C5F8 C5F8 0 15 ppm 0 5 15 2 4 1 400 014 Pyrolyzer M A NF3 NF3 0 15 ppm 0 5 15 2 4 1 400 014 Velcorin DMDC DMDC 0 200 ppb 8 8 200 40 80 1 200 030 ...

Page 59: ...er the files to your personal computer The files are best viewed with programs that convert CSV format to rows and columns Microsoft Excel OpenOffice etc but could be viewed with any standard text editor Figure B 1 below shows the folders and files found on the USB Memory Stick depending on the configuration or your CL4 CL8 and the use of the USB Memory Stick Figure B 1 F 1 Alarm Event files ZG CS...

Page 60: ...mation is stored on the USB Memory Stick in the TWA folder A new file is started each day named with the year month and day for easy retrieval Below is a sample of one cycle stored in a file DOD Technologies INC http www dodtec com Analysis Cycle 4 Start Date Time 4 11 2007 22 58 End Date Time 4 12 2007 6 58 Analysis Time 8 00 Point 1 2 3 4 5 6 7 8 Gas AsH3 AsH3 AsH3 AsH3 AsH3 AsH3 AsH3 AsH3 Avg C...

Page 61: ... 0 0 1 2 0 0 0 0 0 07 03 10 12 19 44 AM 0 0 1 6 0 0 0 0 0 07 03 10 12 19 46 AM 0 0 1 6 0 0 0 0 0 07 03 10 12 19 48 AM 0 0 2 0 0 0 0 0 F 4 Config File A configuration file is created on the USB Memory Stick each time the ChemLogic 4 8 is powered on The config file stores basic information about the machine including version information serial number customer name if entered etc All of the informati...

Page 62: ...e to hazardous chemicals under normal use Material Safety Data Sheets MSDS are not required ChemLogic cassettes are non toxic and require no special precautions for protection However contact with skin may cause the cassette to react change color and no longer be useful in your gas monitoring system We therefore recommend that rubber gloves be worn at all times while handling including removal and...

Page 63: ...ic cleaning will be enough to clear an optics fault and return the DAC to normal operating levels H 1 Basic Optics Cleaning 1 Exit analysis mode and go to the load tape screen 2 Open the gate and remove the tape 3 Remove the optic block covers and the four screws holding in the optic blocks Figure 1 Figure 1 Figure 2 4 Pull block towards you until the pins holding the block in are loose Figure 2 5...

Page 64: ...ow you are done Go to Main Menu and clear the original faults and re enter analysis 12 If the DAV values are not lower than 140 follow the advanced cleaning instructions below H 2 Advanced Optics Cleaning 1 Repeat above steps 1 5 2 Using a cotton swab and alcohol you may have to trim the cotton swab to fit clean each channel that has a DAC above 140 Figure 6 Figure 6 3 Repeat above steps 7 11 4 If...

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