ppbRAE 3000 User’s Guide
103
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.
Cleaning The Instrument
Occasional cleaning with a soft cloth is recommended. Do not use
detergents or chemicals.
Visually inspect the contacts at the base of the instrument, on the
battery, and on the charging cradle to make sure they are clean. If
they are not, wipe them with a soft, dry cloth. Never use solvents or
cleaners.
Ordering Replacement Parts
If you need replacement parts, contact your local RAE Systems
distributor. A list is available online:
http://www.raesystems.com
In the U.S., you can order sensors, replacement batteries, and other
accessories online at:
http://istore.raesystems.com/
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