L/S Precision Variable-Speed Drives Operating Manual
3-1
Masterflex
Inserting Tubing
Section 3
Operation
WARNINGS: Tubing breakage may result in fluid being sprayed
from pump. Use appropriate measures to protect operator and
equipment.
Turn Pump System off before removing or installing tubing.
Fingers or loose clothing could be caught in the pump
mechanism.
CAUTION: To avoid electrical shock, the power cord protective
grounding conductor must be connected to ground. Not for oper-
ation in wet locations as defined by EN61010-1.
If the product is not used in a manner specified in the
instructions, the protection provided by the equipment
may be impaired.
Tubing should be inspected periodically for tears, cracks, cut marks,
abrasions, inability to hold pressure, bubbles in the flow stream and
reduction or loss of flow.
Tubing life may be extended by periodically moving the worn tubing
inside the occlusion bed of the pump to the outside of the occlusion bed
to the suction side of the pump. This will avoid excessive tubing wear at
any specific point.
Always move the worn tubing to the suction side of the pump.
CAUTION: When changing flow direction, allow the pump to
come to a complete stop before starting again. Failure to do so
could cause permanent damage to the motor.
1. Make sure the speed is set to the minimum setting.
2. Turn the power switch ON. Increase the speed to start the pump
action. The higher the rpm setting, the faster the speed of the pump.
3. The L/S Precision Variable-Speed Drives are self-priming. To begin
pumping, select a flow direction with the flow direction button, insert
the intake and output tubing into a reservoir, and turn the unit ON.
Prime the tubing for at least 5 minutes. If accurate flow control is
important, allow the pump to prime for approximately 20 minutes for
more stable flow conditions.
Tubing Inspection
and Replacement
Pump Controls
