GB
7
Table of Contents
D. Relay module RM1/RM3 and mains unit NG1 43
1. Proper use 43
1.1 Technical data 44
1.2 Application in explosion hazard areas 44
1.2.1 Electrical data 45
2. Installation 46
2.1 Retrofitting the relay module/mains unit 46
2.2 Connection for automatic mode 47-49
2.3 Flow meter with separate installation of relay module RM1/mains unit NG1
and operating unit 50
2.4 Flow meter with relay module RM1/mains unit NG1 and separate installation
of operating unit 51
3. Maintenance and servicing 52
3.1 Changing the fuse in the relay module RM1/mains unit NG1 52
E. Relay module Ex-RM1m 53
1. Proper use 53
1.1 Technical data 53
1.1.1 Special conditions (Ex-RM1m B 230 V) 54
2. Installation 54
2.1 Installation location 54
2.2 Dismantling/Assembly 55
2.2.1 Dismantling 55
2.2.2 Assembly 55
2.3 Electrical connection 55
2.3.1 Connecting the basic version Ex-RM1m B 230 V 56
2.3.2 Connecting the complete version Ex-RM1m K 230 V 57
3. Maintenance and servicing 58
3.1 Changing the fuse 58
F. Repairs 58
G. Traceability 59
H. Annex 59
1. Terminal assignment of cables and connectors 59
2. Trouble shooting 60/61
Certificates of Conformity 63
Spare-part list accessories for modular flow meter system 64-67
Spare part list flow meter program 68-71