Vaisala HMT120 User Manual
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VAISALA _________________________________________________________________________ 1
Table of Contents
GENERAL INFORMATION ............................................................................ 5
About This Manual ................................................................... 5
Contents of This Manual ....................................................... 5
Version Information ............................................................... 6
Related Manuals ................................................................... 6
Documentation Conventions ................................................. 6
Safety ......................................................................................... 7
ESD Protection ...................................................................... 7
Recycling .................................................................................. 7
Regulatory Compliances ......................................................... 8
Patent Notice ............................................................................ 8
Trademarks ............................................................................... 8
License Agreement .................................................................. 8
Warranty .................................................................................... 8
Introduction to the HMT120 Humidity and Temperature
Transmitter ................................................................................ 9
Accessories ......................................................................... 10
Fixed and Remote Probe Models........................................ 10
Optional Display .................................................................. 10
Interchangeable Probe ........................................................ 10
Constant Output Probe ....................................................... 11
Transmitter Components ..................................................... 12
Opening the Transmitter Cover ............................................ 13
Mounting ................................................................................. 14
Wall Mounting...................................................................... 14
Installation with Rain Shield ................................................ 15
Installation with Radiation Shield ........................................ 16
Duct Installation Kit ............................................................. 17
Probe Assembly with Duct Installation Kit ..................... 18
Drilling Instructions for Duct Installation Kit ................... 18
Probe Mounting Flange ....................................................... 19
Probe Mounting Clamp ....................................................... 20
Connections ............................................................................ 21
Using the Service Port ........................................................... 23
Installing the Driver for the USB Cable ............................... 23