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Watlow Series 945, 1/4 DIN Microprocessor-BasedAuto-tuning Control User Manual

Page 2

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Starting Out

How to Use the Manual

2

WATLOW Series 945 User's Manual

Contents

Notes

Informational notes alert you to important details. When
you see a note icon, look for an explanation in the margin.

or

Safety Information

Boldface safety information protects both you and your
equipment. Please be attentive to them. Here are
explanations:

The WARNING symbol in the wide text column alerts you
to a "WARNING," a safety hazard which could affect you
and the equipment. A full explanation is in the narrow
column on the outside of the page.

The CAUTION symbol in the wide text column alerts you to
a "CAUTION," a safety or functional hazard which could
affect your equipment or its performance. A full explana-
tion is in the narrow column on the outside of the page.

Technical Assistance

If you encounter a problem with your Watlow control,
review all of your configuration information to verify that
your selections are consistent with your application...
Inputs, Outputs, Alarms, Limits, etc. If the problem persists
after checking the above, you can get technical assistance
by dialing:

1-507-454-5300

An Application Engineer will discuss your problem with you.
Please have the following information available:
• Complete model number

• Serial Number

• All configuration information

• User's Manual

The model and serial numbers can be found on the outside
of the case.

Your Feedback

Your comments or suggestions on this manual are wel-
come, please send them to: Technical Writer, Watlow
Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN
55987-5580, or phone 507/454-5300. The Watlow Series
945 User's Manual and integral software are copyrighted
by Watlow Winona, Inc., © 1989, with all rights reserved.
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Page

Item

Chapter 1

3

Starting Out With The Watlow Series 945

3

General Description

Chapter 2

4

How To Install And Wire The Series 945

4

Installation Procedure

4

Dimensional Information

5

Wiring the Series 945

5

Sensor Installation Guidelines

6

Input Wiring

7

Output 1 Wiring

8

Output 2 Wiring

9

Alarm Wiring

10 Retransmit Wiring
11 System Wiring Examples

Chapter 3
12 How To Use The Keys And Displays
12 Series 945 Keys and Displays

Chapter 4
13 How To Setup The Series 945
13 How to Set the DIP Switch
13 Entering Setup Menu
14 Setup Parameters
17 Setup Menu Table
18 Operation Parameters
20 Operation Menu Table

Chapter 5
21 How To Tune And Operate
21 Auto-tuning
22 Manual Tuning
23 Manual and Automatic Operation
24 Changing the Position of an Alarms Jumper
25 Using Alarms
26 Error Code Messages
27 Error Code Actions

28 Appendix 1
28 Noise Sources
28 Decreasing Noise Sensitivity
29 Eliminating Noise
30 Checking For Ground Loops
30 Noise Suppression Devices Available…
31 Line Filtering Configurations For Controls

32 Appendix 2
32 Entering the Calibration Menu
33 Restoring Factory Calibration
35 Calibration Procedures
39 Glossary
41 Index

42 Specifications
43 Model Number Information
43 Returns
43 Warranty

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