3. Pump
3.1. Pump Test
When you change the gas tube or reconnect to the detector, test the sampling system by blocking the
end of the tube. When the flow is blocked, the device will alarm every second. If no alarm activates this
indicates a leak in the system or a failure of the pump.
3.2 Filter Replacement
The gas inlet is protected by the particulate filter and membrane filter. When the filter is blocked, the
sampling system will be unable to work and the warning alarm will be activated sounding every second.
Visually inspect the filter to ensure the filter is free of debris or obstructions. Discolouration of the filter is
the best indicator that the filter needs replacing. If the filter needs to be replaced, loosen the two screws
and replace with new filters. After replacing with new filter, reassemble the screws and continue to use it.
3.3 Regulator
The detector has an internal pump drawing the gas, so when performing a calibration or bump test, a
demand flow regulator should be used on the gas cylinder.
4. Display
4.1. Measuring Mode
To Next Page
Loading...
