Dwyer Instruments MTL7700 Series User Manual

17
INM7700-6 Jan 2010
APPENDIX A: TYPICAL WIRING CONNECTIONS
FOR SPECIFIC APPLICATIONS.
Hazardous
Area
Safe
Area
3
4
1
2
250W4 -20mA
Power +26V
Signal
Power Bus
1-5V
MTL7706+
MTL7787+
MTL7787P+
MTL7788+
Hazardous
Area
Safe
Area
3
4
1
2
MTL7788R+
250Ω
1-5V
Power +26V
Power Bus
Figure A1: 2-wire transmitters
Hazardous
Area
Safe
Area
3
4
1
2
MTL7789+
7
8
5
6
Power +26.6V
Power +26.6V
Logic signal
Logic signal
Power Bus
Figure A5: 2-channel switch inputs
Hazardous
Area
Safe
Area
3
4
1
2
MTL7756ac
Receiver
7
5
3
4
1
2
MTL7755ac
Receiver
Figure A6: Low-level analogue inputs (RTD’s)
Figure A2: 2-wire transmitters with 250Ω conditioning
Hazardous
Area
Safe
Area
3
4
1
2
MTL7760ac
MTL7765ac
MTL7778ac
Recorder
Controller
Data logger
Computer
Compensating cable
Figure A3: Thermocouple/mV input
Hazardous
Area
Safe
Area
3
4
1
2
MTL7743
MTL7744
7
8
5
6
Logic signal
Logic signal
Power
Figure A7: 2-channel switch/proximity input
Hazardous
Area
Safe
Area
3
4
1
2
MTL7742
5
6
Logic signal
Logic signal
Power Bus
+20V - 35V
0V
Figure A8: Single channel switch/proximity input
Hazardous
Area
Safe
Area
3
4
1
2
MTL7787+
MTL7787P+
Power +26.6V
Signal
Power Bus
Figure A4: 2-wire transmitter/switch input

Dwyer Instruments MTL7700 Series Specifications

General

Brand	Dwyer Instruments
Model	MTL7700 Series
Category	Industrial Electrical
Language	English