User Manual
RP-6 Pump for the GX-94  • 10
Allow the pump unit to sample for 90 seconds for a full 
response on the GX-94.
If an optional hose and probe are used instead of the rubber 
sample nipple, hold the pump unit in one hand while 
holding the probe in the area to be sampled. To sample from 
a well or other similar sample area, the hose and probe may 
be lowered into the sample area. Allow the pump unit to 
sample for 90 seconds for a full response on the GX-94.
NOTE: Although the RP-6 pump does have a hydrophobic 
filter built in, the optional probe does not have a 
hydrophobic filter. It has a dust filter only.
8. Monitor the GX-94 display for the gas readings and take 
appropriate action if gas alarms occur.
9. When sampling is complete, go to a fresh air ar ea and turn off 
the pump unit.
10.Remove the sample adapter from the GX-94.
11.Remove the GX-94 from your belt or clothing.
12.Turn off the GX-94.
13.For convenience, you may leave the pump unit and the 
sample adapter connected to the hose for storage of the RP-6.
Low Flow Alarm
When pump unit experiences a low flow condition, the Low 
Flow LED starts flashing and the pump stops operating. Check 
the rubber sample nipple and filters to make sure they are clear. 
If a hose and probe are used, check them for kinks or 
obstructions. To reset the low flow condition, turn the pump 
unit off and restart it. If the low flow condition persists, the 
pump may need servicing.










