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Air Monitor Usage

Document ID:
  • FO-WI-00104
Department Owner:
Safety & Health
Effective Date:
02/08/2021
Revision:
1

I. Purpose & Scope

To safely and effectively provide instruction on the inspection and proper use of air monitors.

II. Definitions

Standard PPE – High Viz Garment, Hard Hat, Z-87.1 Safety Glasses, Gloves, Pants, Work Boots

III. Process

NOTE: Work instruction does not supplement the manual. For specific instructions for the exact model please refer to the owner’s manual. 

A. Potential Hazards

  • Fire and/or Explosion Hazard
  • Burn Hazard

B. PPE

  • Standard PPE

C. Inspection

  1. Inspect for cracks and/or missing parts

D. Use

Activating/Deactivating the Detector

  1. Ensure the diffusion cover is attached prior to activating the detector to verify the pump is working correctly.
  2. To activate the detector press the circle button in a safe area that is free of hazardous gas. Attach any pump accessories to the detector prior to activating the detector.
  3. To deactivate the detector press and hold the circle button until the off countdown completes.
  4. When the detector is activated it performs several startup tests. Confirm the tests occur.

Bump Test

  1. Activate the detector.
  2. Attach the calibration hose to a 0.5 l/min regulator or demand flow regulator.
  3. Connect the hose quick connector to the pump quick connector on the pump inlet to apply gas.
  4. The detector should enter alarm. Verify the audile and visual alarms activate, and that the LCD readings match the span gas concentrations of the gas cylinder being used.
  5. Disconnect the calibration hose from the detector. The detector briefly remains in alarm until the sensors clear of the test gas.

Calibration (Field w/gas)

  1. Activate the detector.
  2. Ensure the sensor(s) to be calibrated is enabled in Fleet Manager II
  3. Verify the calibration gas being used matches the span concentration value(s) that are set for the detector.
  4. Press and hold the circle button while the detector performs the OFF countdown. Continue to hold the circle button as the detector briefly deactivates.
  5. The detector then reactivates and performs the calibration countdown. Continue to hold the circle button until the countdown is complete.
  6. Do not apply calibration gas until APPLY GAS displays, otherwise the auto zero function will fail.
  7. Auto Zero flashes while the detector automatically zeroes the combustible and toxic sensors, and calibrates the oxygen sensor.
  8. When auto zero is complete the detector beeps two times.
  9. When auto zero is complete, APPLY GAS and Auto Span display and a tank flashes.
  10. Connect the calibration hose to the regulator on the gas cylinder.
  11. Attach the hose quick connector to the pump quick connector to apply gas. After 50% of the gas is detected on all sensors (within 30 seconds) auto span continues to flash while the detector completes the span (approximately 2 minutes).
  12. If the sensors have successfully passed the span, the audible alarm beeps and continues with calibration.
  13. After calibration is complete and the detector returns to normal operation, verify the calibration using a gas cylinder other than the one used for calibration.
  14. The gas concentration should not exceed the sensor’s detection range. Confirm the LCD shows the expected concentration values.
  15. To ensure the readings are accurate, apply the verification gas for the same amount of time as was applied to the sensor when it was calibrated.

Calibration (In Office)

  1. Press and hold blue button until device beeps.
  2. Wait for prompt, then block inlet with your finger over the air intake nozzle and remove when prompted.
  3. Wait for system to complete system check.
  4. Turn on calibration equipment by pressing the far left button.
  5. Place air monitor in release tabs. Press each side until each side clicks.
  6. Slide the top tab down.
  7. Wait for lights to come on, then select Calibrate.
  8. If calibration passes place a calibration sticker on the monitor with correct dates.
  9. If calibration fails notify the safety representative.
  10. Record calibration date and status on the calibration log and on the white board.

E. Maintenance

  1. Charge detector after every work day, the detector must be deactivated to charge the battery.
  2. Calibrate the detector before each use.
  3. Bump test the detector daily.
  4. Clean the exterior with a soft damp cloth. Do not use solvents, soaps, or polishes.
  5. Do not immerse the detector in liquids.

IV. Reference Documents

Air Monitor Manuals

 

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