VEGA VEGASON 51K…53K - Manual (Page 17)

VEGASON 51K … 53K 17
0 4 22 mA
14
36
V
29
16
Technical data
3 Technical data
3.1 Data
Power supply
Supply voltage
- four-wire sensor
230 V AC (20 … 250 V AC), 50/60 Hz
24 V DC (20 … 72 V DC)
fuse 0,2 A TR
- two-wire sensor 24 V DC (16 … 36 V DC); Sicherung 0,2 A TR
1000
900
800
700
680
600
500
400
300
250
200
100
0
16 20 25 30 35
17 18 19 29 36
V
Ω
max. voltage limit
with not-Ex-sensors max. voltage
limit with
Ex-sensors
HART ® -
load
Diagram of the min. supply voltage dependent on the
sensor current (two-wire sensor)
Current consumption
- two-wire sensor
max. 22,5 mA
- four-wire sensor max. 140 mA
Power consumption
- two-wire sensor
max. 80 mW, 0,45 VA
- four-wire sensor max. 1,2 W, 2,50 VA
Load
- four-wire sensor
max. 500
Ω
- two-wire sensor see diagram
Load diagram of the two-wire sensor
(loop resistor of processing unit, e.g. DCS and supply line)
Range of the required and permis-
sible terminal voltage
Ex-voltage limit
min. voltage limit
by using the
HART
® -load