Casella CEL Software for the Tuff sampling pumps - Manual (Page 12)

K.USE WITH LOW FLOW ADAPTOR (Fig 14)
This enables the instrument to be used with sorbent tubes at flows down to 5 ml/min.
1. Connect the inlet of a pump to a flow meter such as the Defender or Dry flow meter
and calibrate the flow rate to 1.5 l/min.
2. Stop the pump and disconnect the flowmeter.
3. Starting from the TUFF inlet, connect the following: constant pressure regulator, low
flow adaptor, sorbent tube holder and a flow meter such as the Dry Flow or Dry Cal
shown in Figure 14.
4. Break both ends off a sorbent tube and put it in the holder with the arrow pointing
towards the pump.
5. Start the pump and adjust the flow to the required rate using the screw on the side of
the low flow adaptor.
6. Perform the measurements using a fresh sorbent tube.
Figure 14 Use with Low Flow Adapter
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Casella CEL Limited 12