Vaisala HMT310 User Manual
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VAISALA _________________________________________________________________________ 3
Table of Contents
GENERAL INFORMATION ............................................................................ 9
About This Manual ................................................................... 9
Version Information ............................................................. 10
Related Manuals ................................................................. 10
Documentation Conventions ............................................... 10
Safety ....................................................................................... 11
ESD Protection .................................................................... 11
Recycling ................................................................................ 12
Regulatory Compliances ....................................................... 12
Emissions ....................................................................... 12
Immunity ......................................................................... 12
Trademarks ............................................................................. 13
Software License .................................................................... 13
Warranty .................................................................................. 13
PRODUCT OVERVIEW ................................................................................ 15
Introduction to HMT310 ......................................................... 15
Output Quantities ................................................................... 16
HMT310 Transmitter Parts ..................................................... 17
Probe Options ......................................................................... 18
Filter Options .......................................................................... 19
Sensor Options ....................................................................... 19
Measuring at Overpressure ................................................... 21
Pressure Regulator Recommended .................................... 21
Selecting Location ................................................................. 21
Removing the Transmitter Unit ........................................... 22
Mounting the Transmitter with Optional Rain Shield ........... 24
Mounting the Rain Shield with Larger Mounting Plate ........ 24
Mounting the Probes ........................................................... 25
Beware of Temperature Differences .............................. 25
General Instructions for Probes with Cable ................... 26
HMT313 for General Use ............................................... 27
HMT314 for Pressurized Spaces ................................... 28
HMT315 for High Temperatures .................................... 29
HMT317 for Demanding Processes ............................... 30
HMT318 for Pressurized Pipelines ................................ 30
Tightening the Clasp Nut ............................................... 31
Connections ............................................................................ 33
Cable Wiring ........................................................................ 33