SKC 224-52 AirChek 52 - Manual (Page 13)

11
When the desired fl ow is set, turn off the pump by pressing
the on/off button. Disconnect the calibrator.
Replace the sorbent tube used for setting the fl ow with a new
unexposed sorbent tube for sample collection.
Place the appropriate size tube cover over the tube (Figure 2,
#5), and screw it into place on the low fl ow holder.
Sampling - Low Flow
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 and the pump to the
worker’s belt.
Press the on/off button to clear the elapsed time display
and to start sampling. Record the start time. The LCD will
automatically track elapsed pump run time.
At the end of the sampling period, press the on/off button and
record stop time.
To return to high fl ow, remove the CPC and low fl ow holder.
For possible displays during sampling, see page 8.
Clip holder to worker
and pump to belt.
3
2
cont’d