Measurement Computing WLS-TEMP - Manual (Page 3)

3
Table of Contents
Preface
About this User’s Guide ....................................................................................................................... 5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the WLS-TEMP .................................................................................................................. 6
Overview: WLS-TEMP features ........................................................................................................................ 6
Remote wireless operation ................................................................................................................................................ 6
WLS-TEMP block diagram ................................................................................................................................ 7
Chapter 2
Installing the WLS-TEMP ...................................................................................................................... 8
What comes with your shipment? ....................................................................................................................... 8
Hardware .......................................................................................................................................................................... 8
Documentation .................................................................................................................................................................. 8
Unpacking........................................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Installing the hardware ....................................................................................................................................... 8
Configuring the hardware ................................................................................................................................... 9
Temperature sensors ......................................................................................................................................................... 9
Network parameters (remote operation) ..........................................................................................................................10
Connecting the external power supply for remote operation ............................................................................ 11
Calibrating the WLS-TEMP ............................................................................................................................. 11
Warm up time ................................................................................................................................................... 11
Chapter 3
Sensor Connections ........................................................................................................................... 12
Screw terminal pinout ....................................................................................................................................... 12
Sensor input .....................................................................................................................................................................12
Current excitation output .................................................................................................................................................13
Four-wire, two sensor common .......................................................................................................................................13
Two sensor common ........................................................................................................................................................13
CJC sensors ......................................................................................................................................................................13
Digital I/O ........................................................................................................................................................................13
Power output ....................................................................................................................................................................13
Ground .............................................................................................................................................................................13
Thermocouple connections ............................................................................................................................... 13
Wiring configuration ........................................................................................................................................................14
RTD and thermistor connections ...................................................................................................................... 14
Two-wire configuration ...................................................................................................................................................15
Three-wire configuration .................................................................................................................................................16
Four-wire configuration ...................................................................................................................................................16
Semiconductor sensor measurements ............................................................................................................... 17
Wiring configuration ........................................................................................................................................................17
Digital I/O connections ..................................................................................................................................... 17
Configuring the DIO channels to generate alarms ...........................................................................................................18
Chapter 4
Functional Details ............................................................................................................................... 19
Thermocouple measurements ........................................................................................................................... 19
Cold junction compensation (CJC) ..................................................................................................................................19
Data linearization .............................................................................................................................................................19