Endress+Hauser RIA15 - Page 23

RIA15 Wiring
Endress+Hauser 23
Circuit diagram / Description
4-wire sensor with
process display unit and
loop power supply,
without backlighting
1
3
Y
I
2
LED
- +
A0020837
1
HART
®
communication resistance module
2 Power supply of 4-wire device
3 Sensor
4-wire sensor with
process display unit and
loop power supply, with
backlighting
1
3
Y
I
2
LED
- +
A0020838
1
HART
®
communication resistance module
2 Power supply of 4-wire device
3 Sensor