SKC 210-2000 AirChek 2000 - Manual (Page 28)

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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 13).
Protect sample pump from weather when in use outdoors.
Before use, allow pump to equilibrate after moving it from one
temperature extreme to another.
Use of any device other than the approved battery pack to power the
pump voids the UL Listing for intrinsic safety and any warranty.
2. To begin sampling, press [] to run the pump. Record the start time.
3. Sample for the time specifi ed in the method used.
4. To stop sampling, press [] 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  butt on to scroll
through it or on a PC using DataTrac 2000 Soft 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 any 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 left corner of the pump display. To delete this program,
see page 15 or 16.
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.
Sampling