Vaisala DMT345/DMT346 Operating Instructions

This document is a user manual for Vaisala DRYCAP® Dew Point Transmitters DMT345/DMT346. The document provides information on safety precautions, features, and installation methods of the product.

Brand: Vaisala
Category: Temperature sensors
Document type: User Manual
Language: Japanese
Pages: 146
File format: PDF
File size: 2.8 MB
Published: 06 April, 2012
Updated: 29 September, 2023
Models: DMT345, DMT346
MD5 checksum: 6FF294E01F39797335782081B283E955
PDF: Vaisala DMT345/DMT346 Operating Instructions PDF

About this manual

This manual provides comprehensive guidance for the Vaisala DMT345 and DMT346 dew‑point transducers, covering safety information, basic features, and operating principles. It details installation options, wiring diagrams, power connections, and optional accessories.

The document also explains display settings, language selection, serial and RS‑485 communication, calibration procedures, maintenance steps, and technical specifications. Appendices include dimension drawings, calculation formulas, and part lists. This manual is written in Japanese.

What's inside

General Information
Safety and ESD Protection
Installation and Mounting Options
Wiring and Power Supply
Display and Language Settings
Serial and RS‑485 Communication
Calibration and Adjustment
Maintenance
Technical Information and Options
Appendices

Specifications

Power supply	24 VAC
Communication interface	RS‑422/485
Probe dimensions	see dimension drawings

Frequently asked questions

What power source is required for the DMT345/DMT346 transducer?

The transducer is powered from a 24 VAC source.

Which communication interfaces are supported?

The device supports RS‑422/485 as well as a serial line interface.

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