Vaisala HMT360Series User Manual

Table of Contents
CHAPTER 1
GENERAL INFORMATION............................................................................ 6
Safety......................................................................................... 6
ESD Protection...................................................................... 6
Version Information ................................................................. 7
Warranty .................................................................................... 7
CHAPTER 2
GENERAL ...................................................................................................... 8
Output quantities...................................................................... 8
Probe options ........................................................................... 8
Maintenance.............................................................................. 9
Compliance with the requirements ...................................... 10
European requirements....................................................... 10
US requirements (FM)......................................................... 10
Canadian requirements (CSA)............................................ 10
Australian requirements (TestSafe) .................................... 10
CHAPTER 3
INSTALLATION............................................................................................ 11
General instructions .............................................................. 11
Mounting the probe cable in gas group IIC spaces............. 11
Selecting a place for the transmitter ................................... 11
Temperature differences ..................................................... 12
Checking the temperature reading...................................... 12
Mounting the transmitter ....................................................... 13
Mounting the probes.............................................................. 14
The HMP362 - small pressure-tight probe .......................... 14
The HMP363 probe for confined spaces ............................ 15
The HMP365 probe for high temperatures ......................... 16
HMP364 for pressurized spaces ......................................... 16
The HMP368 probe for measuring humidity in pressurized
pipelines or moisture in liquids ............................................ 19
Installing the probe through the ball valve assembly .......... 21
CHAPTER 4
ELECTRICAL CONNECTIONS ................................................................... 23
Installation in hazardous locations ...................................... 24
US and Canadian requirements.......................................... 24
European requirements....................................................... 24
Maximum load calculation for the barrier............................ 24
HMT360 connected to a galvanic isolator............................ 25
HMT360 connected to a zener barrier .................................. 26
Examples of connections ...................................................... 27
Grounding ............................................................................... 28

Vaisala HMT360Series Specifications

General

Brand	Vaisala
Model	HMT360Series
Category	Transmitter
Language	English