EGM-5 Operation Manual V. 1.04 123 support@ppsystems.com
Sampling Pump
The sampling pump used in the EGM-5 is a rotary vane style pump. It is secured in place by a simple
mounting clip and is electrically connected to the PCB at location J13 (4-pin header). It operates from 1.0
– 5.0 VDC, which is generated by the EGM-5 controller board. It is capable of delivering flow rates up to
500 cc/min flow. History has shown that this type of pump is rugged and durable and should last for many
years. If replacement is necessary, please contact PP Systems.
Miniature Rotary Sampling Pump
Infrared Source
The infrared source should last for many years without replacement. The obvious sign of failure is that it
is not flashing when the system is powered. It is preferable to return the instrument to PP Systems for full
factory recalibration after changing a failed source lamp. However, if that is not possible, a few checks
can be made to ensure that the analyzer is working properly after changing a source lamp in the field.
Please contact PP Systems for more information.
Hydrophobic Filter
There are two internal hydrophobic filter located inside the EGM-5 enclosure. They are both secured in
place by black Viton tubing. Neither should require frequent replacement unless you are working in
extremely high humidity conditions. If you are regularly seeing “low flow” messages, or if you are unable
to achieve flow rates greater than 50 cc/min, then the “In-line” hydrophobic filter should be replaced.
Simply remove the filter from the tubing and replace it with a new one.
Battery
The internal, rechargeable Li-Ion battery pack should last for many years. When fully charged it should
allow continuous operation of the instrument up to 16 hours. We recommend that you always fully
recharge the battery after use. If the instrument is stored for longer periods, ensure that the battery is fully
charged prior to storage.
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