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REF F-PRO-1725 (G)
LFS-113 LOW FLOW AIR SAMPLING PUMP
2.2 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 Constant Flow
• See Figure 2.3 for Multi-Flow
1) Insert the hex key [1] into the hex head screw on
the pump.
2) Turn the key counterclockwise [2] to change the
mode.
3) Continue turn the key until the mode indicator
shows black for constant flow [Fig. 2.2, #3] or
white for multi-flow [Fig. 2.3, #3].
4) Turn the key clockwise [4] to lock your selection
into place.
5) Turn on the pump using a pointed instrument
such as ball point pen [5].
6) Make sure the Gilibrator 2 is on and working.
7) Set the pump flow rate as follows:
Constant Flow: Use a slotted screwdriver to
make flow adjustments on the pump itself
[Fig. 2.2, #6].
Multi-Flow: Use a slotted screwdriver to make in-
dividual flow adjustments on the sampling device
[Fig. 2.3, #6].
8) When desired flow rate has been reached, turn off
pump and Gilibrator 2. The pump is now ready
for sampling.
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