Precision Digital PD138 User Manual

Page 3

PD138 Minimux

II Temp & Process Scanner

Instruction Manual

Table of Contents

INTRODUCTION ........................................................................... 5

ORDERING INFORMATION ........................................................ 6

SPECIFICATIONS ........................................................................ 7

SETUP AND PROGRAMMING OVERVIEW ................................ 8

SAFETY INFORMATION .............................................................. 9

INSTALLATION ............................................................................ 9

Unpacking ........................................................................................... 9

Panel Mounting ................................................................................. 10

CONNECTIONS OVERVIEW ..................................................... 11

SIGNAL CONNECTIONS ........................................................... 11

Three-Wire RTD Inputs ..................................................................... 12

Thermocouple Inputs ........................................................................ 12

4-20 mA Inputs ................................................................................. 13

Voltage Inputs ................................................................................... 14

MULTIPLE PD138 CONNECTIONS .......................................... 15

ALARM-IN CONNECTIONS ....................................................... 17

ALARM RELAY CONNECTIONS .............................................. 18

Connections ...................................................................................... 18

EXTERNAL SIL, ACK, & STOP/GO CONNECTIONS ............... 19

PROGRAMMING OVERVIEW .................................................... 19

Front Panel Pushbuttons and Status LED Indicators ........................ 20

Programming Dwell Time ................................................................. 21

Programming Dwell Time for Multiple PD138 System ...................... 22

Returning to Four-Second Default Dwell Time ................................. 22

PROGRAMMING ALARM SEQUENCES .................................. 22

Stop or Continuous Scanning On Alarm ........................................... 22

Selecting Alarm Sequence ............................................................... 23

Relay Fail-Safe ................................................................................. 23

OPERATION ............................................................................... 24

Scan, Stop Scan & Quick-Scroll ....................................................... 24

Stop Scan ......................................................................................... 24

Quick-Scroll ...................................................................................... 24

Multiple Units .................................................................................... 25

Built-In Horn ................................................................................. 25

Alarm Relay ................................................................................. 25

SILENCE, STOP/GO & ACK Buttons .......................................... 25

External SILENCE, STOP/GO & ACK Terminals ......................... 25

Alarms .............................................................................................. 26

First-Out Alarms (F2A) ...................................................................... 26