SKC 224-44XR Universal Pump - Manual (Page 8)

6
Deactivating the Regulator
To ensure the pump is set for high fl ow,
remove the cap screw (Figure 1, #11)
covering the regulator valve and turn
the exposed screw clockwise until it
stops. (Do not overtighten.)
Replace the cap screw. The pump is
now set for high fl ow.
Setting or Verifying Flow Rate
Ensure pump has run for fi ve minutes before proceeding with calibration.
Before use, allow pump
to equilibrate after
moving it from one
temperature extreme to
another.
Using 1/4-inch Tygon ®
tubing, connect the sampling
medium to the pump intake
(Figure 1, #6).
Connect a calibrator to
the intake of the sampling
medium.
Remove the tamper-resistant cover. Start the pump using the on/off
switch (Figure 1, #1), and set the fl ow rate using the fl ow adjustment
screw (Figure 1, #4).
When the fl ow rate is set, turn off the pump and disconnect the
calibrator.
Replace the sampling medium used for calibration with an unexposed
medium for sample collection.
Calibration train with fi lter cassette
2
3
Flow
adjustment
screw
On/Off
switch
Tubing
Calibrator
Sampling
medium
For high fl ow,
turn valve screw
clockwise.