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VAISALA ________________________________________________________________________ 3
Table of Contents
CHAPTER 1
GENERAL INFORMATION..........................................................................13
About This Manual ................................................................. 13
Contents of This Manual .....................................................13
Version Information.............................................................14
General Safety Considerations ........................................... 14
Feedback.............................................................................14
Product Related Safety Precautions....................................15
ESD Protection....................................................................15
Recycling ................................................................................15
Regulatory Compliances....................................................... 16
DNV Type Approval ....................................................... 16
Transmitters with LAN or WLAN Interface.....................16
Transmitters with WLAN Interface ................................. 17
Patent Notice ..........................................................................17
Trademarks............................................................................. 17
License Agreement ................................................................ 18
Warranty..................................................................................18
CHAPTER 2
PRODUCT OVERVIEW................................................................................19
Introduction to DMT340 .........................................................19
Basic Features and Options................................................20
Structure of the Transmitter ................................................21
Probe Options ..................................................................... 23
CHAPTER 3
INSTALLATION............................................................................................25
Mounting the Housing ...........................................................25
Standard Mounting without Mounting Plate ........................ 25
Wall Mounting with Wall Mounting Kit.................................26
Mounting with DIN Rail Installation Kit................................ 28
Pole Installation with Installation Kit for Pole or Pipeline .... 29
Mounting the Rain Shield with Installation Kit..................... 30
Panel Mounting Frame........................................................30
Wiring ......................................................................................32
Cable Bushings ...................................................................32
Grounding the Cables .........................................................33
Transmitter Housing Grounding.......................................... 34
Signal and Power Supply Wiring......................................... 34
Connections to a 24 VAC Power Supply ............................35
Probe Mounting......................................................................36
DMT342 Small-size Flanged Probe for Use with Sampling
Cell ......................................................................................37
DMT344 For High-pressure Applications............................39
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