2
UMG 103
General Information
4
Copyright 4
Protected trademarks
4
Liability disclaimer
4
Comments on the manual
4
Meaning of the symbols used
5
Inspection on receipt
6
Scope of supply
7
Available accessories
7
Notes on Use
8
Product Description
10
Intended use
10
Features 11
Operating concept
12
GridVis programming software
12
Installation 14
Installed position
14
Power supply voltage
15
Voltage measurement
16
Current measurement
18
Ammeter 19
Direct measurement
19
RS485 interface
22
What to do in case of errors
24
Service and maintenance
26
Repair and calibration
26
Front film
26
Firmware update
26
Service 26
Technical specifications
28
Transport and storage
28
Ambient conditions during operation
28
General information
28
RS485 interface
29
Measurement uncertainty
30
Measurement 32
Voltage measurement
32
Current measurement
32