What is the purpose of bump testing a gas detector?

The purpose of bump testing a gas detector primarily revolves around checking the operation of installed sensors to ensure that they are functioning correctly. During a bump test, a small concentration of a test gas is introduced to the detector, which should trigger an alarm if the sensors are working as intended. This procedure helps to confirm that the sensors are responsive and that they can detect the presence of gases at the specified levels.

While verifying the accuracy of readings is crucial for ensuring safety in mining operations, that is typically achieved through more comprehensive calibration processes rather than a simple bump test. Rechargeable sensors might require different maintenance practices, and measuring gas concentration is more aligned with the regular operational use of gas detectors rather than the specific purpose of bump testing. Hence, focusing on verifying the sensor's operation is the key aspect of a bump test.