Owner's manual
Table Of Contents
- DMT345/346 USER'S GUIDE
- TABLE OF CONTENTS
- GENERAL INFORMATION
- PRODUCT OVERVIEW
- INSTALLATION
- OPERATION
- Getting Started
- Display/Keypad
- MI70 Link Program for Data Handling
- Serial Line Communication
- LAN Communication
- Communicating with a Transmitter in POLL Mode
- General Settings
- Serial Output Settings
- Data Recording
- Analog Output Settings
- Operation of Relays
- Sensor Functions
- MODBUS
- MAINTENANCE
- CALIBRATION AND ADJUSTMENT
- TECHNICAL DATA
- EXAMPLE INSTALLATION OF DMT346
- CALCULATION FORMULAS
- MODBUS REFERENCE
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VAISALA _________________________________________________________________________ 7
Diagnostic Modbus Counters ............................................. 143
Viewing Counters Using Display/Keypad .......................... 143
Viewing Counters Using Service Port ............................... 143
Disabling Modbus ................................................................ 144
CHAPTER 6
MAINTENANCE ......................................................................................... 145
Periodic Maintenance .......................................................... 145
Cleaning ............................................................................ 145
Changing the Cooling Set Filter ........................................ 145
Error States ....................................................................... 146
Technical Support ................................................................ 148
Product Returns ................................................................... 148
CHAPTER 7
CALIBRATION AND ADJUSTMENT ......................................................... 149
Calibration ............................................................................. 149
User Calibration and Adjustment ...................................... 149
Opening and Closing Adjustment Mode ........................... 150
Adjustment Information ..................................................... 151
CTEXT and CDATE ..................................................... 151
Two-Point Relative Humidity Adjustment .......................... 152
Using Display/Keypad ....................................................... 152
Using Serial Line ............................................................... 153
FCRH ........................................................................... 153
One-Point Dewpoint Adjustment ........................................ 155
One-Point Dewpoint Adjustment Using Display/Keypad .. 155
One-point Dewpoint Adjustment Using Serial Line ........... 156
Adjusting Temperature ........................................................ 157
Adjusting Temperature Using Display/Keypad ................. 157
Adjusting Temperature Using Serial Line ......................... 158
CT................................................................................. 158
Adjusting Analog Outputs ................................................... 159
Adjusting Analog Outputs Using Display/Keypad ............. 159
Adjusting Analog Outputs Using Serial Line ..................... 160
ACAL ............................................................................ 160
CHAPTER 8
TECHNICAL DATA .................................................................................... 161
Specifications ....................................................................... 161
Performance ...................................................................... 161
Technical Specifications of Optional Modules .................. 166
Power Supply Module .................................................. 166
Analog Output Module ................................................. 166
Relay Module ............................................................... 166
RS-485 Module ............................................................ 167
LAN Interface Module .................................................. 167
WLAN Interface Module ............................................... 167
Data Logger Module..................................................... 167
Spare Parts and Accessories .............................................. 168
Dimensions (mm/inch) ......................................................... 169