Answer :
Final answer:
A bump test is a quick field test that checks if a gas detection instrument responds correctly to a known calibration gas. It serves to confirm the instrument's functionality before use in hazardous environments. This is different from a full calibration, which adjusts the instrument for accuracy over a wider range of measurements.
Explanation:
Understanding Bump Tests
A quick field test, in which an instrument is exposed to a known calibration gas and the sensors show a response or alarm, is called a bump test. This process is crucial in ensuring that gas detection instruments are functioning properly before they are used in potentially hazardous environments.
Bump tests involve exposing the sensor to a gas concentration that is typically lower than the minimum detection level of the instrument. The aim is to verify that the sensor can recognize and respond to the presence of the gas. If the sensor responds appropriately, it indicates that the instrument is likely in good working order.
Importance of Bump Tests
These tests are particularly important in safety-critical applications, such as in industries that handle toxic gases, where early detection can save lives. They are a less comprehensive procedure than full calibrations, which involve adjusting the instrument for accuracy across the entire detection range.
- Factory Calibration: This is performed during manufacturing and establishes baseline accuracy.
- Full Calibration: A detailed process that adjusts the entire performance of the instrument.
- Bump Test: A quick check to confirm the sensor's operational readiness.
- Sensor Test: Similar to a bump test but may involve different methods of verification.
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