Masterflex L/S 07528-40 - Page 5

Masterflex L/S Precision Variable-Speed Drives Operating Manual v
Preface
1. Read instructions before operating the unit.
2. Observe safety precautions at all times, especially when pumping
dangerous liquids.
3. If the pump runs unusually noisy or if bunching of the tubing in the
pump can be observed, make sure the tubing is clamped down tightly
and/or replace it with a new piece of tubing.
4. The L/S Precision Variable-Speed Drives must be well-grounded at all
times.
5. The L/S Precision Variable-Speed Drives are equipped with a current-
limiting circuit that will shut the motor down if any of the following
conditions exist:
a. Tubing that is too hard is loaded in the pump.
b. Incorrect tubing size or wall thickness is loaded in the pump.
c. Tubing is improperly loaded into the Pump Head.
6. The unit is fused and grounded to protect the operator in the event of
short circuits that could be caused by liquid entering the case.
CAUTION: Replace the fuse only with one of the same type and
rating. The fuse rating and type are stated on the
rear panel.
7. The L/S Precision Variable-Speed Drives should not be used in
outdoor or hazardous locations.
8. The L/S Precision Variable-Speed Drives Equipped with OHS
(Open Head Sensor) must use OHS equipped Pump Head.
If Non-OHS equipped Pump Head is used, the shorting plug must be
installed in OHS socket and locked for the drive to operate properly.
Safety