L/S Precision Variable-Speed Drives Operating Manual 2-1Masterflex
Section 2 Installation and Setup
• The drive should be mounted on a flat horizontal surface. Up to a
maximum of one (1) Pump Head can be used for 100 rpm and 600
rpm drives equipped with OHS (open head sensor).
• Multi-Channel operation will accommodate only one (1) Pump Head
with OHS (open head sensor), all other Pump Heads must be Non-
OHS.
WARNING: Pump Heads NOT equipped with OHS (open head
sensor) will not actuate the OHS feature. If Non-OHS
Pump Heads
are used, the shorting plug must be installed and locked into the
OHS socket on the front of the drive for drive to operate.
• The ambient air temperature should not exceed 104° F (40° C) and
adequate air flow should be provided for.
• The drives are provided with a grounded plug. If used in a GFCI
protected circuit, nuisance tripping may occur.
• Tubing should be clean and routed so that bend radii are at a
minimum four (4) times the tube diameter and as short as possible.
WARNING: Turn drive off before removing or installing tubing.
Fingers or loose clothing could get caught in drive mechanism.
• Use a tube size of appropriate diameter for the flow rate and
viscosity required.
• For tubing selection and compatibility, see Tubing Selection Guide
within this flash drive or on the web.
• For Pump Head information, see OHS (open head sensor) Pump Head
datasheets within this flash drive or on the web.
• Before cleaning or conducting maintenance on unit remove power
from the drive.
DANGER: High voltages exist and are accessible. Use extreme
caution when servicing internal components.
Before Starting Drive
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