What Does My Manufacturer Recommend?
Below are a sample of just a few manufacturers currently in the Australian market. This represents the message from all manufacturers. Check your specific manufacturer in relation to your unit.
"As stated in BW Technologies multi-gas detector manuals, to verify that your detector is responding to gas, BW recommends bump testing the sensors before each day’s use. The bump test exposes the detector to a gas concentration that exceeds the alarm set-points to confirm the sensor’s ability to respond. Manually verify that the audible and visual alarms are activated. Calibrate if the readings are not within the specified limits. Taking less than a minute, a functional (bump) test is easy to perform and will ensure that the gas detector is responding and the gas path is not blocked."
"Perform a bump test and calibration check every single day before anyone uses the DRPGM that day (and according to manufacturer’s instructions)". More info
"Regular equipment testing can save lives. Calibration evaluates the response of gas detectors against standards and adjusts the devices to optimise accuracy. It normally involves zero point and span point tests and adjustments at fixed intervals. Bump tests check that gas detectors are functioning as they should. These should be performed before every use – and if they indicate a fail, the instrument must be submitted for calibration prior to use" More Info
"While it is strongly recommended by manufacturers, from the 1st November 2010, EN60079-29 part 1 has been harmonised under the ATEX directive 94/9/EC. Therefore to comply with the ATEX directive, portable apparatus sensing flammable gases should have a functional check with gas before each day of use." More Info