RKI Instruments GX-82 - Manual (Page 19)

Model GX-82 Instruction Manual Accessories • 15
4. With the vinyl case on the GX-82, slide the adapter into place over the sensor cover.
5. Start-up the GX-82 and verify operation as described in “Start-up” on page 5.
CAUTION: Do not place the probe tip in liquid or other materials that could be drawn into the
sample-draw aspirator or the GX-82.
6. Place the probe tip in the location you want to monitor, then squeeze the aspirator
bulb several times at a moderate pace. Observe the display for changes in the
readings.
Sample-Draw Pump
WARNING: When the sample-draw pump is attached, the pump must be turned on for
the GX-82 to detect the target gases. The GX-82 may respond slower to
changes in the ambient air with the sample-draw pump attached.
Use the sample-draw aspirator accessory only when sample-drawing
measurements are necessary. Always remove the sample-draw pump before
you resume diffusion monitoring.
The sample-draw pump allows you to continuously draw and monitor a remote area. The
sample-draw pump includes:
• hose
• probe
• pump (powered by two AA-size batteries)
NOTE: The sample-draw pump’s batteries have a life span of approximately 10 hours of
normal operation. The low flow alarm sounds when the batteries are too low to
operate the pump. Always replace the batteries in a non-hazardous environment.
To attach and use the sample-draw pump:
1. Place the GX-82 in a non-hazardous area.
2. Verify that the GX-82 is turned off.
3. Assemble the pump, probe, and hose.
4. Remove the GX-82’s sensor cover, then slide the pump into place.
5. Verify that the rubber sensor chamber is in place and the pump housing is firmly
seated and secured by the clips.
6. Start-up the GX-82, turn on the pump, and verify operation as described in “Start-up”
on page 5.
CAUTION: Do not place the probe tip in liquid or other materials that could be drawn into the
sample-draw pump or the GX-82.
7. Place the probe tip in the location you want to monitor. Observe the display for
changes in the readings. If the pump’s sample system is blocked, the low flow alarm
sounds.