Procedure Instruction
2(16)
Field Tech Manual for DMT143-series
2018-04-06
Vaisala Instruments
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Table of Contents
General Product info
............................................................................................................... 1
There are two variants of the DMT143 transmitter, DMT143 and DMT143L.
................. 1
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Table of Contents
............................................................................................................. 2
Service policy
..................................................................................................................... 3
Tools needed
..................................................................................................................... 3
Wiring
................................................................................................................................. 4
Trouble Shooting
.............................................................................................................. 5
4.1
Analog Output or Display does not match expected value
................................................... 5
4.2
Measurement Reading bounces around
.................................................................................. 5
4.3
Checking Error Messages with Service Port
............................................................................. 6
4.4
Checking Error Messages with Service Port
............................................................................. 8
4.5
Operational tests using USB Service Cable and Service Port
................................................. 8
4.6
Changing Output Parameter and Channel information
......................................................... 9
4.7
Reset to factory ordered configuration
.................................................................................. 10
4.8
Thread Types ................................................................................................................................ 10
Maintenance
.................................................................................................................... 11
5.1
Visual Check
................................................................................................................................ 11
5.2
Cleaning the HUMICAP sensor
................................................................................................ 11
Spare or Replacement parts available for customers
................................................ 12
CALIBRATION AND ADJUSTMENT........................................................................... 13
DMT143 Order Codes ...................................................................................................... 15
Calculate mA and Process Values .................................................................................... 16
