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Gas Detector Bump Test & Calibration Log

Daily bump test register & full calibration record: O2, LEL, CO, H2S

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PAGE 1 OF 2

Instrument Details

Daily Bump Test Log

Expose each sensor to test gas before use. Mark P = Pass (sensor responds and alarm activates) or F = Fail. Remove from service immediately if any sensor fails.

# Date Time Tested By O2 % LEL % CO ppm H2S ppm Other / Reading Pass / Fail
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Gas Detector Calibration Log: Full Calibration Record (Page 2 of 2)
Instrument ID
Serial #
Date

Full Calibration Record - As-Found / As-Left Readings

Apply calibration gas to each sensor. Record the as-found reading (before adjustment), adjust if needed, then record the as-left reading. Acceptance: reading within ±5% of target (or per manufacturer spec).

Sensor Target Gas / Conc. As-Found Reading Deviation As-Found Pass/Fail As-Left Reading As-Left Pass/Fail Adjustment / Notes
O2 (Oxygen)
LEL (Combustible)
CO (Carbon Monoxide)
H2S (Hydrogen Sulphide)
Other:
Calibration Gas Details
Calibration Event Details
Calibration Result
PASS: all sensors within tolerance, instrument returned to service FAIL: sensor(s) out of tolerance, quarantine instrument

Declaration

I confirm that this gas detector has been calibrated using certified calibration gas in accordance with the manufacturer's instructions. As-found and as-left readings have been accurately recorded. Any instrument that failed calibration has been quarantined and labelled. The next calibration due date has been recorded and a calibration label affixed to the instrument.

Calibrating Technician Sign-off
Signature
Print name
Date