CONTENTS

1

INTRODUCTION

2

2

PREPARATION

3

 

2.1

Checking the Code Number

3

3

MECHANICAL INSTALLATION

4

 

3.1

Siting

4

 

3.2

Mounting

5

4

ELECTRICAL INSTALLATION

6

 

4.1

Access to Terminals

6

 

4.2

Setting the Input Selector Links ...

6

 

4.3

Setting the Isolated Output Link ...

6

4.4Cable Glands and

 

Conduit Fixings

8

 

4.4.1

Cable Glands

 

 

 

(IEC – 20mm)

8

 

4.4.2

Conduit Adaptors

 

 

 

(N. American – 0.5in)

8

 

4.4.3

Cable Glands

 

 

 

(N. American – 0.5in)

9

4.5

Connections Summary

10

4.6

Input Connections

12

 

4.6.1

Thermocouple

 

 

 

(THC) Inputs

12

 

4.6.2

3-lead Resistance

 

 

 

Thermometer (RTD)

 

 

 

Inputs

12

 

4.6.3

2-lead Resistance

 

 

 

Thermometer (RTD)

 

 

 

Inputs

12

 

4.6.4 Links for Unused Inputs ..

12

4.7

Output Connections

14

4.8

Relay Connections

14

4.9

Motorized Valve Connections ....

14

4.10

Logic Input Connections

15

4.11

Power Supply Selection and

 

 

AC Connections

16

5 INSTALLATION RECORD

17

1

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Omega CN3440 manual Contents