3
INTRODUCTION AND GENERAL DESCRIPTION
The MASTERFLEX
®
L/S
®
COMPACT Pump Drives are designed as an inex-
pensive variable speed drive which accepts MASTERFLEX
®
L/S
®
STANDARD,
QUICK LOAD
®
and EASY-LOAD
®
Pump Heads. These 200 rpm drives ac-
commodate one Pump Head and one tube at controlled speed as low as
30 rpm. All units operate from an External Power Supply. The 115V AC and
230V AC models are supplied with an External Power Supply which provides
a DC output for connection to the Pump Drive.
Figure1. MASTERFLEX
®
L/S
®
Compact Pump Drive
The single-turn adjustable Speed Control, Figure 2, provides variable flow
operation. The green POWER On indicator lights whenever the pump is oper-
ating. The Power On/Direction Switch turns power on when either clockwise
or counterclockwise pump rotor direction is selected. The MAX Button is used
for priming and purging and operates the pump at maximum speed while
depressed.
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