Starting Out
4
Getting Started, Chapter 1
QPAC User's Manual
Starting Out
Figure 1 -
The QPAC-01
SCR Power Control
General Description
The QPAC Power Controls are a family of solid state controls used for electric
heating applications. A solid state power control provides output power that is
proportional to the input command signal from a temperature control. This
proportional output power helps to produce a closely controlled heater tem-
perature, which saves energy and prolongs heater life by holding heater
elements at a nearly constant temperature.
The QPAC has a modular construction with plug-in features for flexibility. The
three modules of the QPAC are the Power Base, Transformer, and Control
Chapter 1
Starting Out With The QPAC,
Modular SCR Power Control
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