Skc 224-PCXR8 Universal Pump User Manual download pdf (Page 19)

Turn the ﬂ ow adjust screw (Figure 3, #2) for the appropriate port

of the low ﬂ ow holder until the desired ﬂ ow rate is achieved.

Turn clockwise to decrease the ﬂ ow.

Do not adjust the ﬂ ow on the pump. Adjust the ﬂ ow only by

using the ﬂ ow adjust screw on the low ﬂ ow holder.

Do not exceed 500 ml/min ﬂ ow rate per tube.

When the desired ﬂ ow is set on the

initial tube, place the pump in Hold

by pressing Flow and Battery Check.

Remove the calibrator from the tube

and connect to the exposed end of

the next sorbent tube. Press Flow and

Battery Check and repeat the ﬂ ow

adjustment process until all tubes are

ﬂ ow calibrated. Changing the ﬂ ow on

one tube will not affect the ﬂ ow rate through the remaining tubes.

Do not exceed 500 ml/min ﬂ ow rate per tube.

For tri and quad models, ﬁ rst rotate each anti-tamper cover

(Figures 3 and 4) to expose the ﬂ ow adjust screws, then

adjust the appropriate screw until the calibrator indicates the

desired ﬂ ow.

When the ﬂ ow rate is set for each tube, press Flow and Battery

Check to place the pump in Hold and disconnect the calibrator.

Replace the sampling media used for calibration with unexposed

media for sample collection. Use a protective tube cover to

prevent tube breakage.

If sampling with fewer tubes than number of ports, insert unopened

sorbent tubes in the empty ports to seal them.

(cont’d)

Screw

Figure 4

Cut-away of Tri/Quad Low

Flow Holder

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Skc 224-PCXR8 Universal Pump User Manual Page 19