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6.5 Preventing Tubing from Moving During Pump Operation
Once you start the pump, you may need to adjust the Clamp Screw slightly, to
prevent the tube from creeping (moving) through the pump. Creeping tends to
occur on tubing of larger sizes and tubing made from low friction materials (for
example, Santoprene). Use the following procedure to eliminate creeping. Refer
to Figure 6-9.
Figure 6-9. Adjusting the Clamp Screw
1. Press the START/STOP key to stop the pump (motor).
2. Rotate the Clamp Screw a quarter turn clockwise, in order to increase the
pressure of the Clamp Plate on the tubing.
3. Press the START/STOP key again (to restart the pump). Observe the tubing. If
the tubing has not stopped creeping, go back to Step 1. Otherwise, continue
pumping.
6.6 Other Pumping Options
The pump motor is equipped with two features that allow limited remote control
and monitoring capability. These features are described in Sections 6.6.1 and
6.6.2. The features are independent. Either one or both may be used at any time.
6.6.1 Auxiliary Out (Remote Monitor)
The Auxiliary Out function allows you to remotely monitor whether the pump
motor is running or stopped. The Auxiliary Out terminals are located near the
bottom, on the back of the pump motor, next to the LANGUAGE button. Use the
schematic circuit (Figure 6-10) (Resistor, LED and 9Vdc supply must be user
supplied) to monitor the motor.
Clamp Screw
Operating the Pump Motor in the RUNNING Display Mode
6
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