Watson-Marlow 620RA - Continuous Tube Loading

15 Continuous tube loading
l 620RA 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. The
use of any other tubing material in the pump would invalidate the declaration of conformity.
l Select the tube clamp set which is correct for the tubing size to be used.
l Disengage rollers.
l 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 thatthere is no twisting through its length.
l Locate the other end of the tubing into the upper port “U” clamp.
l Hold both endsof the tubing in one hand maintaining tension around the rollers. Engage rollers.
l Close the guard and push it against the track until the latch engages.
l Ensure that continuous tubing isnot loosely clamped at the pumphead ports.
l 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.
Continuous tube loading
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