PC3000 Complete Installation guide iss 12 - Elektro-Trading

PC3000 Installation Guide
Chapter 9
4 CHANNEL ANALOGUE INPUT
MODULE
Contents
Version compatibility...................................................... 9-1
Safety instructions .......................................................... 9-1
Caution live sensors....................................................... 9-1
Cleaning ....................................................................... 9-1
Description.................................................................... 9-1
Module identification ..................................................... 9-2
Connections .................................................................. 9-3
Thermocouple and millivolt level inputs ..................... 9-4
Resistance thermometer ............................................ 9-4
Process level voltage inputs ....................................... 9-5
Current inputs .......................................................... 9-5
Zirconia probe input ................................................. 9-6
Frequency inputs ...................................................... 9-6
Filter earth connections and signal screens ................ 9-6
Upscale break/RT current source .................................... 9-7
Range selection ............................................................. 9-8
Location ........................................................................ 9-9
Specification .................................................................. 9-9
DIAGNOSTICS ............................................................ 9-10
Status indication .......................................................... 9-10
MAINTENANCE/CALIBRATION .................................... 9-10
General ...................................................................... 9-11
Calibration overview .................................................... 9-11
General calibration scheme .................................... 9-12
Step-by-step calibration guide ................................. 9-13
Millivolt level inputs ................................................ 9-13
Calibration of the cold junction sensor .................... 9-15
Calibration of the high level inputs .......................... 9-16
Calibration of resistance inputs ............................... 9-18
Calibration dates on the Analogue In function block 9-21
Other parameters associated with calibration .......... 9-22
Cont i