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Gasclam Ion Science Ltd
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Software
Bump Test
You can check the performance of the sensors by running a bump test on your GasClam. During a bump test a known
concentration of gas is pumped through the GasClam and the value measured is displayed. If the measured
concentration is within the tolerance of the sensor the bump test is passed and indicated by a tick, if it is outside this
range the bump test is failed and indicated by a cross. The values are informative only (i.e., nothing is saved on the
GasClam settings) and used to decide if a calibration is required.
The bump test menu is entered by clicking the „Bump Test‟ button on the main screen. To check the performance of the
relevant sensor(s) tick the box next to the sensor name, then enter the concentration of the test gas in the „Enter Values‟
column . If you want to test atmospheric gas the „Enter values for Air‟ button can be used to set the concentrations.
Before starting the test connect the gas line to the inlet barb. The test is then started by clicking the „Start‟ button.
The whole bump test cycle will take approximately two minutes after which the measured concentration is displayed in
the „Values‟ column and the result of the test is indicated by a cross or tick. If a cross occurs call your service centre and
they will advise on action. The sensors must be checked at atmospheric pressure, as the calibration gas bottle will be
pressurised it is important that the excess pressure is vented. This is achieved by attaching a T-piece between the gas
bottle and inlet, see diagram below.
Tick box
Enter
concentration of
Gas here
Measured
value
Result
Gas
GasClam Inlet
Excess Pressure