Watlow PM LEGACY™ Limit Controller • 6 • Chapter 1 Overview
Chapter 1: Overview
1
Introduction
The Watlow® LEGACY™ SERIES panel mount controller is an industry leading PID controller that al-
lows optimal performance utilizing simple control and menu functionality without complex features. It
is ideally suited for basic applications and usage levels.
The LEGACY™ includes one universal input and an option for up to two outputs and is available in
1/32, and 1/16 DIN panel mount packages. It can be ordered as a PID process controller or as a ded-
icated over and under-temperature limit controller. A single PM controller can carry out several func-
tions at the same time, for instance (but not limited to), PID control, checking for a limit condition,
monitoring for several different alarm situations, etc... To ensure that the application requirements are
being met, it is important to first give thought to each external process and then configuring the con-
troller’s internal functions to properly accommodate the application requirements.
Available PM LEGACY™ Limit Literature and Resources
Document Title and Part Number Description
Contact Watlow Directly: For technical assistance contact Watlow at:
www.watlow.com Or call at: 1-800-WATLOW2 Or
(1-800-928-5692) Or email at: wintechsupport@watlow.com
PM6 LEGACY™ Express Limit Con-
troller Quick Start Guide Document
No. 10-41692,
Part No. 2126-4403
A Quick Start Guide to help you get your controller set up is
available for download at https://www.watlow.com/resourc-
es-and-support/Technical-Library/. Many other documents
are available in Watlow’s Technical library.
PM LEGACY™ Series Panel Mount
Controller Specification Sheet
This Specifications Sheet describes the PM LEGACY™ Se-
ries hardware options, features, benefit ts and techni-
cal specifications. Available at: https://www.watlow.com/re-
sources-and-support/Technical-Library/. Many other helpful
documents are available in Watlow’s Technical library.
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