www.skcltd.com
007-01-013 Issue B
Page 5
Operating the Pump
1. Insert the mains lead into the IEC mains inlet at the rear of the pump and plug the lead into a suitable mains
outlet socket. Both UK 3 pin and Euro 2 pin mains leads are supplied with the 228-9620 model, select the
correct lead for your location.
2. Turn the flow adjuster fully counter-clockwise to ensure that it is fully open. Switch on the mains supply.
Switch on the pump using the on/off switch at the rear of the pump. Allow the pump to run for five to ten
minutes to stabilise before commencing any flow calibration. Switch the pump off using the on/off switch
at the rear of the pump.
3. Connect the sample train to the pump inlet hosetail. Switch on the pump using the on/off switch. Adjust
the flow rate if required using the flow adjuster. Turn the flow adjuster clockwise to reduce the flow rate and
anti-clockwise to increase the flow rate. Allow the pump to run for five minutes for the flow rate to stabilise
before taking any calibration readings.
4. The back pressure gauge gives a reading of the vacuum generated by the pump due to the restriction
to flow of the sample train. This is important for indicating correct operation of the SKC Biosampler - the
Biosampler achieves sonic flow at a suction of 15in Hg (refer to the Biosampler instructions for further
details).
