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INTRODUCTION
This Power Controller is intended to be used in a variety of experimental,
process laboratory and engineering applications involving the controlled
delivery of significant amounts of AC (Alternating Current) power to heating mantles, heating tapes, various controllable light sources, AC induction
and “Universal” motors. When properly used and applied, this controller will
perform dependably for thousands of hours.
GENERAL
All solid-state circuitry means reliable, trouble-free operation—no wearprone relays or heat-generating power resistors. Handsome, compact
design and easy to operate. Rubber feet permits use as a portable controller. Range of control is 2 to 98% of input voltage. Its output is protected
through a circuit breaker. The unit is motor-rated and designed to comply
with UL Standard For Safety 244A for Solid-State Controls for Appliances.
APPLICATION DATA
Precise voltage and power control permits use of fixed speed AC induction
motors in variable speed applications. This controller meets rigid standards
for regulating power to all kinds of laboratory and industrial devices, this
includes universal motors up to 1/2 hp.
The unit is also ideal for controlling immersion heaters and high intensity
lamps (up to 1265 watts), plus flexible electric heating tapes. The new heat
sink design provides optimum heat dissipation.
The separate voltage and ON/OFF controls prevent the output voltage setting from being affected when the unit is turned ON and OFF. This is an
advantage in applications requiring a fixed startup voltage.
CAUTION: This controller is not intended to be used with Fluorescent
lighting or with other electrical arc discharge devices.
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INSTALLATION
Plug the grounded power cord into a 115V AC outlet.
Plug in the cord from the controlled device at the standard 15 ampere
receptacle.
The controller is furnished with mounting hardware and a TEMPLATE for
easy, permanent wall or counter mounting.
OPERATION
The output voltage control dial is graduated from 0 to 100 for reference
purposes. Where high precision isn’t essential, the dial graduations are
close to percentage values for voltage output. When used in precision
motor speed control applications, read the speed with a tachometer as you
adjust the controller.
Here’s the simple operating procedure:
• Press the POWER SWITCH to the ON position. The built-in pilot light
will denote the ON status.
• Adjust the output voltage control dial to the desired level.
FAIL-SAFE OPERATION
An overload condition will automatically shut down the controller.
Note: The pilot light will remain on when the circuit breaker trips.
• Correct the problem, then press the circuit breaker button (located on
the left side) to restore operation.
MAINTENANCE/SERVICE
The rugged enclosure is resistant to standard cleaners and solvents.
WARNING: There are no user serviceable parts in this solid-state
controller. If repairs are required, contact your dealer.