Watson-Marlow 621CC - Manual (Page 22)

22 620RE, 620RE4 and 620R Continuous tube
loading
 620R continuous tubing pumpheads are factory set to accept Watson-Marlow 600
series 3.2mm wall tubing. Pumping performance will be adversely affected if Watson-
Marlow tubing is not used.

Select the tube clamp set which is correct for the tubing size to be used.
 Disengage rollers

Locate one end of the tubing into the lower port "U" clamp and hold in position.

Wrap the tubing tightly around the retracted rollers, making sure that there is no
twisting through its length.
 Locate the other end of the tubing into the upper port "U" clamp.

Hold both ends of the tubing in one hand maintaining tension around the rollers.

Engage rollers

Close the guard and push it against the track until the latch engages

Ensure that continuous tubing is not loosely clamped at the pumphead ports.

Ensure that when the pump is re-started all of the rollers have re-engaged. A roller
which has not re-engaged will "click" continuously. No damage will occur if this
happens but the roller should be re-engaged manually using the 5mm Allen key.
Please refer to the Troubleshooting section.
Continuous tube loading
Page 22 of 46 Watson-Marlow Bredel E-Manuals
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