Vaisala GMT220 - Manual (Page 3)

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VAISALA ________________________________________________________________________ 3
Table of Contents
CHAPTER 1
GENERAL INFORMATION ............................................................................ 5
About This Manual ................................................................... 5
Contents of This Manual ....................................................... 5
Version Information ............................................................... 5
Related Manuals ................................................................... 6
Documentation Conventions ................................................. 6
Safety......................................................................................... 6
ESD Protection...................................................................... 7
Recycling .................................................................................. 7
Warranty .................................................................................... 7
CHAPTER 2
PRODUCT OVERVIEW.................................................................................. 9
GMT220 Transmitter Parts ...................................................... 9
LED Indicators and Optional Display ................................... 11
CHAPTER 3
INSTALLATION............................................................................................ 13
Wall Mounting......................................................................... 13
Duct or Channel Mounting .................................................... 14
Connections............................................................................ 15
Power Supply Requirements ................................................ 16
Connection to a 24 VAC Supply ........................................... 16
Relays ...................................................................................... 17
CHAPTER 4
SERIAL COMMUNICATION ........................................................................ 19
Serial Cable Settings.............................................................. 19
Serial Commands ................................................................... 20
Setting Relay Trigger Points ............................................... 21
Pressure Compensation...................................................... 22
Temperature Setting ........................................................... 23
Display Setting .................................................................... 23
Error States............................................................................. 24
Non-critical and Fatal Errors ............................................... 24
Error Indication in Transmitters without Display.................. 25
Error Messages ...................................................................... 25