SKC AirChek2000, Operating Instructions Manual

Page: 27 / 36

24
Sampling (1000 to 3250 ml/min Constant Flow)
1. Following calibration, replace representative sampling medium with a
new unexposed medium. Ensure run time data has been reset (see page 12) .
Protect sample pump from weather when in use outdoors.
For multiple-tube sampling, seal unused holder ports with unopened
tubes.
2. To begin sampling, press [
ST
] to run the pump. Record the start time.
3. Sample for the time speci fi ed in the method used.
4. To stop sampling, press [
ST
] to place the pump in HOLD. Record the
stop time.
5. When sampling is complete, pump data is retained in memory for
recovery. Data can be viewed on the LCD by using the
Ò
bu tt on to scroll
through it or on a PC using DataTrac 2000 So ft ware.
When using impingers, place an in-line trap between the pump
and the impinger to protect the pump from harmful liquids or
vapors. Failure to use the impinger trap voids the pump warranty.
If a delayed start or DataTrac 2000 schedule has been programmed
into the pump, it may remain in pump memory. PROG will display
in the upper le
ft corner of the pump display. To delete this program,
see page 14 or 15.
To ensure sample integrity, ensure tubing seals tightly onto the
pump inlet
fi lter cover. Use care when removing tubing to prevent
cracking or breakage of the inlet fi lter cover.
Low Flow Sampling (5 to 500 ml/min Constant Pressure)
Low fl ow sampling requires a Constant Pressure Controller (CPC) and
adjustable fl ow tube holder available as accessories or in the Low Flow
Adapter Kit, Cat. No. 210-500.
When sampling with the CPC accessory and multiple tubes, the
volume displayed on the pump is no longer representative of the
volume of
fl ow through the tubes due to the air bypass function of
the CPC.
1. Following calibration (see page 23) , replace the representative tube(s) with
a new unexposed tube(s).
Protect sample pump from weather when in use outdoors.
2. Press [
ST
] to RUN the pump. Sample for the time speci fi ed in the
method used.
3. To stop sampling, press [
ST
] to place the pump in HOLD.
Sampling