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3M W-2808/37027 Скачать руководство пользователя страница 17

16

With span gas flowing
through the monitor after
approximately one-minute
display reads one (1) to the
far left

Span potentiometer may be
turned clockwise all the way

The sensor has lost sensitivity

Adjust the zero potentiometer
counterclockwise to 199 and
then turn down to value of
span gas

Replace the sensor 

When calibrating the CO
monitor you cannot move
display off zero '00' with 
zero potentiometer

Monitor may have been
adjusted ‘00’ using the 
span potentiometer 

Turn the span potentiometer
screw several full revolutions
clockwise until the display
reads the value of the span
gas then start the calibration
procedure over again

Display goes below 0 (i.e.
display indicates a –02,
-1, SC)

Zero misadjust

Sensor has internal failure 

Circuit malfunction

Recalibrate the monitor

Replace the sensor 

Repair is needed

Problem Potential 

Cause

Corrective 

Action

Monitor display 
numbers wander and 
alarm periodically

Monitor is powered by the
110-120 volt AC adapter and
walkie-talkies are being used
near the monitor 

Large voltage spikes are
present in the AC circuit

Ambient temperatures exceed
110º F (43º C)

Do not use walkie-talkies 
in the area 

Isolate by using dedicated line

Decrease ambient temperature

38-9018-0147-2_CarbMonMan  6/12/03  10:52 AM  Page 16

Содержание W-2808/37027

Страница 1: ...3Carbon Monoxide Monitor and Retrofit Carbon Monoxide Monitor Kit W 2808 37027 User Instructions Keep these instructions for reference 38 9018 0147 2_CarbMonMan 6 12 03 10 52 AM Page 3 ...

Страница 2: ...bon Monoxide Monitor 7 3MTM Retrofit Carbon Monoxide Monitor Kit W 2808 37027 7 3MTM Accessories and Parts 7 ASSEMBLY 8 SET UP PROCEDURES AND PERFORMANCE CHECK 10 Monitor Calibration Frequency 10 OPERATING INSTRUCTIONS 11 Normal Operation 11 Calibration 12 REPLACEMENT PART INSTRUCTIONS 13 Batteries 13 3MTM Carbon Monoxide Sensor 529 05 22 13 TROUBLESHOOTING 15 IMPORTANT NOTICE 17 Warranty 17 Remed...

Страница 3: ...requirements of the specification for Grade D breathing air as described in the Compressed Gas Association Commodity Specification G 7 1 1997 in the United States In Canada refer to CSA standard Z180 1 for the quality of the compressed breathing air Failure to do so may result in sickness or death Use of equipment described in these User Instructions must be in accordance with applicable health an...

Страница 4: ...fied intrinsically safe for Class I Div I Groups A B C and D Hazardous Locations when utilizing two 9 volt alkaline batteries to power the monitor The components of the monitor are assembled into a black powder coated aluminum housing 6 H x 4 W x 2 D overall A hose barb with plastic sample tube attached for introducing the sample gas extends from the bottom Available at the front face are the OFF ...

Страница 5: ... of the side panel It provides a continuous tone during high CO alarm a pulsing tone during certain malfunction conditions Alarm Light Red ALARM light blinks faintly during normal operation and is on steadily during the high CO alarm condition Low Battery Light Yellow LOW BATTERY light comes on when battery voltage falls to where the instrument will not function properly about 7 volts DC Batteries...

Страница 6: ...re aligned toward the rear of the right side panel There are two battery compartment drawers near the top They contain the two 9 volt alkaline batteries connected in parallel which power the instrument Auxiliary Power Jack A 2 5 mm pin jack is located near the bottom for operating the instrument from the AC adapter The AC adapter will power the instrument as long as power is supplied to it The out...

Страница 7: ...Sources 120 volt AC 7 5 volt DC adapter Operating Temperature Range 0 110º F 17 43º C ambient temperature The impedance of any connected load device at the REM ALARM Remote Alarm jack must be greater or equal to 12 ohms when operating from internal batteries or AC adapter Failure to do so may damage the carbon monoxide monitor and result in sickness or death The intrinsic safety of the carbon mono...

Страница 8: ...n active fused 1 amp 115 volt 50 60 Hz outlet Note To prevent unnecessary electrical interference the outlet should be on a dedicated circuit free of any intermittent heavy electrical loads such as pumps compressors or heaters 2 Plug adapter cord connector into socket on the lower right hand side of the monitor 3 Adapter will power the instrument as long as the 115 volt AC source remains active 4 ...

Страница 9: ...reducing bushing to connect the bottom of the flow meter to an available port just prior to the compressed hose connections on the filter and regulator panel If you are installing the flow meter on the 3M compressed air filter and regulator panel W 2806 07006 you will need to remove the plug from the CO sampling port located above the quick disconnect outlets on the panel Note If your panel is wal...

Страница 10: ...6 lock washer 4 4 8 x 1 2 self tapping screw 4 5 Mounting bracket 1 6 2 foot sample tube 1 7 Tube lock collar 1 8 Flow meter 1 9 90º st elbow 1 10 2 1 2 pipe nipple 1 11 3 8 x 1 8 reducing bushing 1 12 W 2808 37027 3MTM Retrofit CO Monitor Kit includes items 1 11 13 W 2806 07006 3MTM Compressed Air Filter and Regulator Panel Sold Separately CARBON MONOXIDE SPAN TEST ON OFF ZERO Fig 3 38 9018 0147 ...

Страница 11: ...le and introduce a known sample of 50 to 150 ppm CO to the sample inlet tube see User Instructions for the 3MTM Calibration Kit 529 04 48 or 529 04 49 The sample flow should be between 0 5 and 1 5 scfh 6 Verify that the display readings rise upscale and the alarm light and buzzer operate see Calibration and Adjustment section of this User Instruction 7 Remove the CO sample 8 Reconnect the sample t...

Страница 12: ...t will go off the buzzer will sound a steady tone and the REM ALARM jack will be energized When the CO concentration drops below the alarm setting the indicators will automatically return to normal Your employer must provide breathing air that meets at least the requirements of the specification for Grade D breathing air as described in the Compressed Gas Association Commodity Specification G 7 1 ...

Страница 13: ... 02 or to 02 monitor does not display 01 or 01 Try to set the potentiometer midway between the two extremes Remove the zero air sample Span Adjustment Introduce a known sample of 50 to 150 ppm CO to the sample tube see User Instructions for the 3MTM Calibration Kit 529 04 48 or 529 04 49 The sample flow should be between 0 5 to 1 5 scfh Verify that the green NORMAL light is off the red ALARM light...

Страница 14: ... will be greatly reduced 3MTM Carbon Monoxide Sensor 529 05 22 To replace sensor Fig 4 Remove the two knurled thumbscrews at bottom Pull the bottom plate off the housing as far as the wiring will allow Remove the 2 screws holding the wire connectors circuit board sensor cell in flow block An o ring is located under the sensor at the bottom of the flow block cavity DO NOT LOSE Pull the wire connect...

Страница 15: ... Tighten screws lightly to assure good seal with o ring Do not overtighten screws or damage to circuit board sensor may occur Replace the bottom plate and secure it with thumbscrews Make sure the inlet sample swivel elbow is firmly tightened Allow at least one hour for stabilization then calibrate as in Calibration and Adjustment section of this User Instruction Fig 4 Circuit board sensor to flow ...

Страница 16: ...on indication will continue until the battery is completely dead CO monitor display will not move from zero 00 when the sensor is exposed to a known sample of CO SPAN adjustment may be set to zero Span gas cylinder empty The sensor has lost sensitivity Circuit malfunction Recalibrate the monitor Replace the cylinder Replace the sensor Repair is needed The CO monitor cannot be calibrated The span g...

Страница 17: ...ns clockwise until the display reads the value of the span gas then start the calibration procedure over again Display goes below 0 i e display indicates a 02 1 SC Zero misadjust Sensor has internal failure Circuit malfunction Recalibrate the monitor Replace the sensor Repair is needed Problem Potential Cause Corrective Action Monitor display numbers wander and alarm periodically Monitor is powere...

Страница 18: ...respectively 3M shall not be liable for loss of use of any of its products or incidental or consequential costs expenses or damages incurred by the purchaser or any other user THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS IMPLIED OR STATUTORY INCLUDING WARRANTY OF MERCHANTABILITY Remedy Should the Carbon Monoxide Monitor or the Carbon Monoxide Sensor fail in no...

Страница 19: ...ision 3M Canada Company P O Box 5757 London Ontario N6A 4T1 FOR MORE INFORMATION In United States contact Internet www 3M com occsafety Technical Assistance 1 800 243 4630 For other 3M products 1 800 3M HELPS or 1 651 737 6501 In Canada contact Internet www 3M com CA occsafety Technical Assistance 1 800 267 4414 For other 3M products 1 800 364 3577 38 9018 0147 2_CarbMonMan 6 12 03 10 52 AM Page 2...

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