KROHNE SU 501 EX EN - Manual (Page 16)

12
3
4
5
6 12
6
2
ze
za
A B
off
t sec
IP 30 Sensorstromkreis EEx ia IIC
60mA
- + - +
PTB-Nr.: Ex-95/xxxx X
max: 36V
5 6
nsp. I
a : -20...+60°C
power supply
20...72VDC
2 W
20...250 VAC
L N
Sensor
1 2
T
e
rm
inal
13 12
out
14
3AAC/1ADC
500VA/54W
max.250VAC/DC
9 10
+ -
Uo < xx V Lo < xx mH
Co < xx nF
Po < xx mW
Io < xx mA
1
2 3
Fig. 7: Indicating and adjustment elements
1 DIL switch block
2 Type label
3 Transparent cover
6.2 Adjustment elements
Control lamps (LED) in the front plate indicate operation,
switching status and fault signal.
l
Green
- Operation control lamp
- Mains voltage on, instrument operates
l
Red
- Failure lamp
- Fault on the sensor circuit by sensor failure or line
break
Control lamps
16 SU 501 Ex - Signal conditioning instrument
Set up
27953
-EN
-050616