Table Of Contents - Honeywell 2MLF-RD4A User Manual

1. INTRODUCTION .......................................................................... 17
1.1 Introduction to Resistance Temperature Detector .................................... 17
1.2 Features ......................................................................................................... 17
1.3 Terminology ................................................................................................... 19
Analog value - A .................................................................................................................. 19
Digital value - D .................................................................................................................... 19
Platinum resistance temperature detector (RTD) ................................................................. 20
2. SPECIFICATIONS ........................................................................ 21
2.1 Performance specifications ......................................................................... 21
2.2 Part names and functions ............................................................................ 23
2.3 RTD input module characteristics ............................................................... 25
Temperature conversion ...................................................................................................... 25
Conversion speed ................................................................................................................ 26
Accuracy .............................................................................................................................. 26
Temperature display ............................................................................................................ 27
Scaling function .................................................................................................................... 28
Disconnection detecting function .......................................................................................... 29
Sensor connection ............................................................................................................... 30
2.4 RTD module functions .................................................................................. 34
Averaging function ............................................................................................................... 34
Filtering function ................................................................................................................... 36
Alarm function ...................................................................................................................... 37
Maximum/minimum display function .................................................................................... 40
3. INSTALLATION AND WIRING .................................................... 41
3.1 Installation ..................................................................................................... 41
Installation environment ....................................................................................................... 41
Handling precautions ........................................................................................................... 41
3.2 Wiring ............................................................................................................. 42
Wiring precautions ............................................................................................................... 42
Wiring examples ................................................................................................................... 42
R200 Resistance Temperature Detector 2MLF-RD4A User's Guide
September 2010
Contents
Honeywell
ix