MiniRAE 3000/ppbRAE 3000 Pocket Reference
36
Sampling Pump
When approaching the end of the specified lifetime of
the pump, it will consume higher amount of energy and
reduce its sample draw capability significantly. When
this occurs, it is necessary to replace or rebuild the
pump. When checking the pump flow, make sure that
the inlet connector is tight and the inlet tubing is in good
condition. Connect a flow meter to the gas inlet probe.
The flow rate should be above 450 cc/min when there is
no air leakage.
If the pump is not working properly, refer the instrument
to qualified service personnel for further testing and, if
necessary, pump repair or replacement.
