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CMS-4 IN-HELMET CARBON MONOXIDE MONITOR

Page 23



www.clemcoindustries.com



Manual No. 29872

7.0

TROUBLESHOOTING

The troubleshooting table describes error messages,
symptoms, probable causes, and recommended action
for problems encountered with the CMS-4.

NOTE:  If  the  monitor  does  not  display  menu  items  that
are noted within these instructions, repeat the process. If
after  repeating  the  process  the  monitor  still  does  not
display  the  correct  menu  item,  return  the  monitor  to
factory settings, per Section 4.4.

Symptoms

Probable Causes

Recommended Action

The LCD is blank.

The monitor may have been turned
off.

1. To turn on the

monitor

, press and briefly hold

POWER/MODE.

The battery was inserted
backwards.

1. Reinstall the battery in the correct orientation.

Battery may need to be replaced.

1. Check battery ICON

for remaining battery life.

The battery cover may not be
completely closed.

1. Be sure the battery cover is completely closed and

that the screw is tight.

2. If the difficulties continue, contact the Clemco distributor

the monitor was purchased through for further instruction.

The LCD shows an
abnormally high reading,
but other gas detection
instruments do not.

Charcoal filter may need to be
replaced.

1. Replace the charcoal filter.

The CMS-4 may need to be
recalibrated.

1. Recalibrate the

monitor.

2. If the difficulties continue, replace the sensor and

calibrate.

The sensor may need
replacement.

1. Recalibrate the monitor.
2. If the difficulties continue, replace the sensor and

calibrate.

Calibration fails.

The calibration gas values may not
match the cylinder gas
concentration.

1. Make sure test gas and gas value are 25 ppm.

Refer to Sections 5.6 and 5.7

2. Make sure the CMS-4 has been properly set up

for calibration.

3. If the fail condition continues, replace the

sensor.

4. If difficulties continue, contact the Clemco

distributor the monitor was purchased through for
further instruction.

The sample gas is not reaching the
sensor because of a bad
connection.

1. Check all calibration tubing for leaks or for any bad

connections.

The calibration cylinder may be out
of gas or is outdated.

1. Verify that the calibration cylinder contains an

adequate supply of fresh test sample.

The sensor may need replacement.

1. If the fail condition continues, replace the sensor.
2. If difficulties continue, contact the Clemco distributor the

monitor was purchased through for further instruction.

Heart symbol at the top of
the screen becomes
steadily on or disappears.

A microprocessor error has
occurred.

1. Contact the Clemco distributor the monitor was

purchased through for further instruction.

Monitor does not display
menu items as noted
within the instructions.

Factory settings accidentally
changed.

1. Return to factory default settings per Section 4.4.

Содержание CMS-4

Страница 1: ...om DATE OF ISSUE 07 2019 REVISION Do not use this equipment before READING this MANUAL and UNDERSTANDING its contents These WARNINGS are included for the health and safety of the operator and those in the immediate vicinity Failure to read and understand these warnings can result in injury or death Electronic files include a preface containing the same important information as in the orange cover ...

Страница 2: ...ast equipment is only one component of an abrasive blasting job Other products such as air compressors air filters and receivers abrasives scaffolding hydraulic work platforms or booms equipment for lighting painting ventilating dehumidifying parts handling or specialized respirators or other equipment even if offered by Clemco may have been manufactured or supplied by others The information Clemc...

Страница 3: ... other non breathable gas Never modify or change respirator air line connections without first testing the content of the line for safe breathing air Failure to test the line may result in death to the respirator user Breathing air quality must be at least Grade D as defined by the Compressed Gas Association specification G 7 1 per OSHA Regulation 29 CFR 1910 134 When compressed air is the breathi...

Страница 4: ...terval clean all filters screens and alarm systems If spring loaded abrasive valves are used always cage spring before disassembly WARRANTY The following is in lieu of all warranties express implied or statutory and in no event shall seller or its agents successors nominees or assignees or either be liable for special or consequential damage arising out of a breach of warranty This warranty does n...

Страница 5: ...ens valves for tightness leaks and wear Always ground the machine to eliminate hazard of static shock Install a blast machine screen to keep out foreign objects Use a blast machine cover if left outdoors overnight Never exceed the maximum working pressure of the vessel 7 AIR LINE FILTER moisture separator installed as close as possible to the blast machine inlet and sized to match the size of the ...

Страница 6: ...ol to avoid possible injury or death NOTICE Notice indicates information that is considered important but not hazard related if not avoided could result in property damage CAUTION Caution indicates a hazardous situation that if not avoided could result in minor or moderate injury WARNING Warning indicates a hazardous situation that if not avoided could result in death or serious injury DANGER Dang...

Страница 7: ...ion of Operation WARNING The CMS 4 detects carbon monoxide which can be life threatening When using the CMS 4 follow the instructions maintenance calibration schedule and warnings in this manual to assure proper and safe operation of the monitor and to minimize the risk of personal injury Carbon monoxide poisoning can result in death or serious injury 1 5 1 The CMS 4 respirator mounted carbon mono...

Страница 8: ...ochemical cell that consists of two precious metal electrodes in a dilute acid electrolyte A gas permeable membrane covers the sensor face and allows gas to diffuse into the electrolyte The gas reacts in the sensor and produces a current proportional to the concentration of the target gas The current is amplified by the CMS 4 s circuitry converted to a measurement of gas concentration and displaye...

Страница 9: ...ress and hold AIR b Immediately press POWER MODE and then release both buttons NOTE Each screen displays for 20 seconds If you do not press a button within 20 seconds the CMS 4 automatically returns to Measuring Mode Button Function POWER MODE Turns the monitor ON and OFF Activates Display Mode Enters instruction into CMS 4 s microprocessor Resets alarm after an alarm condition Also Turns the LCD ...

Страница 10: ...RATION 2 1 Installation This section explains the initial installation of the CMS 4 to the inside of the respirator 2 1 1 Prepare Mounting Clip 2 1 1 1 Adhere Velcro loop to CMS 4 mounting clip Trim the Velcro loop strip to 3 4 x 1 Remove the backing and adhere it to the bottom of the monitors mounting clip as shown in Figure 4 2 1 2 Installing Monitor in Apollo 20 Respirator Refer to Section 2 1 ...

Страница 11: ... the monitor when doffing the respirator at the end of the shift and to do any service or calibration including turning the monitor on and off Do this to make sure the monitor is fully functional before placing it inside the helmet WARNING Remove the monitor at the end of the shift turn it off and store it in a clean environment At the beginning of each shift turn on the monitor and make sure it i...

Страница 12: ...air environment This is an environment free of toxic or combustible gases and of normal oxygen content 20 9 2 4 2 Turn on the monitor by pressing and holding the POWER MODE button until the alarm beeps 2 4 3 The monitor goes though the warm up sequence as noted in Paragraph 2 2 2 2 4 4 After the warm up sequence the monitor goes into Measuring Mode normal operating mode it beeps and the LCD displa...

Страница 13: ...d to removing the respirator as soon as it is safe to do so 3 4 1 2 Reset the alarm by pressing and releasing the POWER MODE button once after the CO reading falls below the low alarm point 3 4 2 Responding to an Over Range Alarm An over range alarm could indicate CO gas is above the detection limit of 1000 ppm The CO concentration reading is replaced by blinking brackets ΠΠΠΠ WARNING An over rang...

Страница 14: ...the LCD Alarm LEDs flash once per second Backlight turns on Alternating high low tone chirps about twice per second Vibrator pulses once per second Over Range An over range condition indicates an extreme CO concentration Gas reading is replaced with a flashing ΠΠΠΠ Gas name and units flash OVER appears at the bottom of the LCD Alarm LEDs flash twice per second Backlight turns on Alternating high l...

Страница 15: ...ntinue into Measuring Mode if the instrument must be used temporarily Figure 11 3 5 Alarm Setpoints 3 5 1 There are six alarm points The alarm points and their factory settings are summarized below There are no adjustments of alarm setpoints F S Full Scale Is triggered when CO concentrations go over the scale maximum of 1000 ppm WARNING Is triggered when CO concentrations reach 10 ppm which is the...

Страница 16: ...he monitor is in Measuring Mode can result in death from carbon monoxide poisoning 4 2 1 Entering User Mode Begin with the monitor OFF 4 2 1 1 Press and hold the AIR button then press and hold the POWER MODE button Release both buttons as soon as the monitor beeps 4 2 2 Tips for Using User Mode To scroll from one menu item to the next press AIR and release it as soon as the alarm beeps To reverse ...

Страница 17: ...he Date and Time Refer to Section 2 3 THIRTEEN PASS W When set to ON password required to enter User Mode Factory setting is OFF Do not adjust FOURTEEN ROM SUM Shows firmware version and firmware checksum Refer to Section 4 2 7 to display firmware FIFTEEN START Enters Measuring Mode from User Mode Press and release POWER MODE Figure 14 4 3 DISPLAY MODE Display mode is used to view and change setti...

Страница 18: ...actory settings that should not be adjusted If operator accidentally enters an unfamiliar menu DO NOT PUSH BUTTONS THAT COULD CHANGE THE MONITORS FUNCTION Refer to Section 4 4 to return to factory settings SEQUENTIAL LIST OF DISPLAY MODE MENU ITEMS Number of times POWER MODE beeps is pressed and released to reach menu item Display Mode Menu Items Description Sections In Which Adjustments Are Found...

Страница 19: ...e last 15 minutes There are no changes or resets on the STEL menu Figure 18 4 3 7 Displaying the TWA Screen 4 3 7 1 The TWA Screen displays the time weighted average TWA reading The TWA reading is the average reading over the last 8 hours If 8 hours have not elapsed since the last time the TWA reading was cleared the average is still calculated over 8 hours The missing readings are assigned a valu...

Страница 20: ...in Maintenance Mode returns all parameters to their factory settings 4 4 3 1 Enter Maintenance Mode per Section 4 4 2 4 4 3 2 Press and release AIR 16 times and scroll to M DEF 4 4 3 3 Press and release POWER MODE The screen will alternate between M DEF YES MODE and NO AIR 4 4 3 4 Press and release POWER MODE to perform a default operation 4 4 3 5 The monitor will ask if you are sure you want to p...

Страница 21: ...ection 5 7 the CMS 4 is ready for monitoring 5 2 2 Fresh Air Adjustment with Impurity Free 0 ppm CO Test Gas The following is required to set the fresh air baseline with impurity free test gas Impurity free test gas Stock No 11132 Calibration connector with 0 5 LPM fixed flow slide valve tubing and calibration cup 5 2 2 1 Make sure the monitor is off 5 2 2 2 Prepare the calibration connector regul...

Страница 22: ... Figure 21 5 3 5 Screw the calibration connector with slide valve onto the test gas cylinder NOTE Test gas can be 25 ppm CO used to calibrate the monitor or it can be impurity free air used to set fresh air baseline when using impurity free air per Section 5 2 2 5 4 Connect Calibration Cup to Monitor Figure 22 5 4 1 Prepare the calibration connector with slide valve for calibration per Section 5 3...

Страница 23: ...ollowing are required to bump test the CMS 4 Test gas with 25 ppm concentration of CO Stock No 25573 Calibration connector with 0 5 LPM fixed flow slide valve tubing and calibration cup Stock No 29767 assembled as noted in Section 5 3 5 6 1 Make sure the fresh air baseline was set per Section 5 2 5 6 2 Prepare the calibration connector regulator valve and 25 ppm CO test gas per Section 5 3 Make su...

Страница 24: ...d as noted in Section 5 3 5 7 1 Make sure the fresh air baseline was set per Section 5 2 5 7 2 Prepare the calibration connector regulator valve and 25 ppm CO test gas per Section 5 3 Make sure the slide valve is closed 5 7 3 With the monitor OFF press and hold AIR and POWER MODE Release both buttons when the monitor beeps BUMP is displayed on the LCD The monitor is now in User Mode 5 7 4 Press an...

Страница 25: ...operation and accurate readings of the monitor Maintenance should be performed by personnel properly trained for this work Improper service could result in malfunction and loss of life NOTE There are no serviceable parts within the CMS 4 case Do not remove the four screws holding the upper and lower case together or try to separate the case 6 1 Replacing the Lithium Battery Figures 27 and 28 The b...

Страница 26: ...own in Figure 29 Before removing the sensor note the orientation of the old sensor alignment points as shown in Figure 30 The new sensor will insert with the same orientation Figure 29 NOTICE Do not force the sensor into the socket when correctly oriented the sensor easily fits into the socket Forcing it could damage the sensor or the socket 6 2 6 Carefully insert the replacement sensor Make sure ...

Страница 27: ...filter It should be seated and recessed in the sensor gasket and should not overlap the edge of the sensor gasket 6 3 9 Clip the sensor retainer over the filters and sensor gasket and tighten its screw 6 4 Replacing the Hydrophobic Filter Figure 32 NOTE Replace the hydrophobic filter in a clean nonhazardous environment Replace the charcoal filter when replacing the hydrophobic filter 6 4 1 Make su...

Страница 28: ... be recalibrated 1 Recalibrate the monitor 2 If the difficulties continue replace the sensor and calibrate The sensor may need replacement 1 Recalibrate the monitor 2 If the difficulties continue replace the sensor and calibrate Calibration fails The calibration gas values may not match the cylinder gas concentration 1 Make sure test gas and gas value are 25 ppm Refer to Sections 5 6 and 5 7 2 Mak...

Страница 29: ... CLEMCO Figure 33 8 2 Monitor Replacement Parts Figure 34 NOTE There are no serviceable parts within the CMS 4 case Do not remove the four screws holding the upper and lower case together or try to separate the case Item Description Stock No 1 Sensor CMS 4 29768 2 Retainer sensor 29769 3 Retainer battery 29770 4 Gasket sensor 29771 5 Gasket battery retainer 29772 6 Filter hydrophobic each 29868 7 ...

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