SKC 224-PCXR8 Universal Pump - Manual (Page 16)

14
Sampling
Before use, allow pump to equilibrate after
moving it from one temperature extreme to
another.
Protect sample pump from weather when in
use outdoors.
Use of any device other than the approved
battery pack to power the pump voids the UL
Listing for intrinsic safety and any warranty.
For personal sampling, clip the low fl ow
holder to the worker in the breathing zone.
While the LCD displays HOLD, start
sampling by pressing Start/Hold. If a time delay has been
programmed, DELAYED START will fl ash on the LCD and
the amount of time remaining until sampling starts will appear.
SAMPLE RUNNING will display when the delay sequence has
ended. The LCD will automatically track sampling period time
elapsed.
At the end of the sampling period, press Start/Hold and record
the stop time.
To return to high fl ow, remove the low fl ow holder and
deactivate the regulator (see page 6).
For user options during sampling, see page 9.
Clip holder to worker
and pump to belt.
5
Set the Pump Period for less time than the Sample Period to initiate
intermittent sampling. The pump will automatically cycle “on” and
“off” at one-minute intervals adjusting the fi nal “on” or “off” time
to as many minutes as needed to reach the total programmed time.
If intermittent sampling is not desired, set the Sample Period to
equal the Pump Period.
Pressing Mode will scroll through the program sequence.
For intermittent sampling, the elapsed time maximum is 9999 minutes
(6.8 days), at which time the sample pump will shut down.
4
(cont’d)