Endress+Hauser RIA15 - Page 23

RIA15 Wiring
Endress+Hauser 23
Circuit diagram / Description
2-wire sensor with
process display unit
and transmitter power
supply, without
backlighting
Y
I
R
s
DC
1
2
3
LED
- +
A0019567
1 Sensor
2 Power supply
3
HART
®
resistance
2-wire sensor with
process display unit
and transmitter power
supply, with
backlighting
Y
I
R
s
DC
1
2
3
LED
- +
A0019568
1 Sensor
2 Power supply
3
HART
®
resistance
4-wire sensor with
process display unit
and transmitter power
supply, without
backlighting
1
3
Y
I
2
4
LED
- +
A0019570
1
HART
®
resistance
2 Current measuring device (optional)
3 Sensor
4 Power supply 4-wire device
4-wire sensor with
process display unit
and transmitter power
supply, with
backlighting
1
3
Y
I
2
4
LED
- +
A0019571
1
HART
®
resistance
2 Current measuring device (optional)
3 Sensor
4 Power supply 4-wire device