1-2
MASTERFLEX
®
L/S Compact Variable-Speed Pumps Operating Manual
Masterflex
Section 1
Introduction
The rear panel, Figure 1-3, contains a DC power input jack for
connection of primary power and a 4-terminal barrier strip for connection
of remote start/stop and for a DC backup supply. Remote Start/Stop:
Terminals 3 and 4 on the rear panel terminal strip, (Figure 1-3) are used
for remote start/stop operation. Pump direction and speed are not
remotely controllable. In non-remote operation, these terminals are
connected together by a shorting bar. For remote control by switch
closure, remove the shorting bar and connect the two terminals of an
isolated remote control switch or relay to terminals 3 and 4. A closure of
the remote switch contacts will turn the pump system on. Opening the
contact will turn the pump system off.
General Description
(continued)
Figure 1-2.
Pump System—Front Panel
Power On
Indicator
MAX: Press and hold to
prime or purge pump
Speed control: provides
variable flow adjustment
Power On/
direction switch
Figure 1-3.
Pump Drive — Rear Panel
DC Power Input,
2.5 mm Coaxial Receptacle
Shorting Bar
Remote
Start/Stop
Input
Remote
DC
Input
