13
GILAIR-3 & GILAIR-5 AIR SAMPLING PUMPS
REF 360-0040-01 (F)
• Field Calibration/Flow Verification
Field calibration (flow rate verification) must be per-
formed before sampling and when setting the flow
rate.
• See Figure 2.2
For Basic models skip to Step 4. Pump should be off.
1)
Use a small Phillips screwdriver to loosen the side
anti-tamper plate screw
2)
Rotate the side cover plate 180
°
.
3)
Use a pointed instrument such as a ball-point pen
or paper clip bent 90
°
to press the MODE/HOLD
button twice. CAL should appear on the display.
CAL allows you to run the pump without actually
collecting run data. 3A = Clock model. 3B = Pro-
gram model.
4)
Use a small Phillips screwdriver to loosen the
front anti-tamper plate screw.
5)
Rotate the front cover plate 180
°
.
6)
Move On/Off switch to the On position.
7)
Make sure the Gilibrator 2 is on and working.
8)
Set the pump flow rate by turning the flow adjust
screw. (Clockwise for increased flow and coun-
terclockwise for decreased flow. Use built-in rota-
meter only as a flow indicator. Use the Gilibrator
2 for actual calibration measurements.
9)
When desired flow rate has been reached, turn off
pump and Gilibrator 2. The pump is now ready
for sampling.
