User's Manual MT440/MT438/MT436 Measuring transducer
Contents
MT4xx MEASURING TRANSDUCER ................................................................................. 1
SECURITY ADVICE AND WARNINGS ............................................................................... 2
Warnings, information and notes regarding designation of the product ................................ 3
Before switching the device on ................................................................................................ 3
Device switch-of Warning ......................................................................................................... 4
Disposal ..................................................................................................................................... 4
BASIC DESCRIPTION AND OPERATION ........................................................................... 5
Contents .................................................................................................................................... 5
Description ................................................................................................................................ 5
Abbreviation/Glossary .............................................................................................................. 7
Purpose and use of different type of measuring transducer ................................................... 8
Voltage transducer MT436 ........................................................................................................... 8
Current transducer MT438 ........................................................................................................... 8
Multifunctional transducer MT440 .............................................................................................. 8
Type differences ........................................................................................................................... 8
CONNECTION ...............................................................................................................10
Mounting ................................................................................................................................ 11
Electrical connection ............................................................................................................... 11
Connection of input/output modules ..................................................................................... 13
Communication connection .................................................................................................... 14
RS232 ...................................................................................................................................... 14
RS485 ...................................................................................................................................... 14
USB .......................................................................................................................................... 14
Survey of communication connection .................................................................................... 15
Connection of auxiliary power supply .................................................................................... 15
SETTINGS .....................................................................................................................16
MiQen software ...................................................................................................................... 16
Setting procedure ....................................................................................................................... 17
General Settings ...................................................................................................................... 17
Connection .............................................................................................................................. 19
Connection mode ....................................................................................................................... 19
Setting of current and voltage ratios ......................................................................................... 19
Used voltage/current range (V/A) .............................................................................................. 19
Nominal frequency ..................................................................................................................... 19
Energy flow direction ................................................................................................................. 19
This setting allows manual change of energy flow direction (IMPORT to EXPORT or vice versa)
in readings tab. It has no influence on readings sent to communication. ................................. 19
CT connection ............................................................................................................................. 19