WIKA IPT-11 - Manual (Page 48)

Protection
-
unassembled IP 20
-
mounted into the sensor without cover IP 40
Materials
-
Housing ABS
-
Inspection window Polyester foil
Power supply
Operating voltage
-
Non-Ex instrument 14 … 36 V DC
-
EEx-ia instrument 14 … 30 V DC
Operating voltage with lighted indicating and adjustment module
-
Non-Ex instrument 22.5 … 36 V DC
-
EEx-ia instrument 22.5 … 30 V DC
Permissible residual ripple
-
< 100 Hz U
ss
< 1 V
-
100 Hz … 10 kHz U
ss
< 10 mV
Load see diagram
1000
750
500
250
14 18 16 20 22 24 26 28 30 32 34 36
Ω
V
4
1
2
3
Fig. 21: Voltage diagram
1 HART load
2 Voltage limit EEx-ia instrument
3 Voltage limit non-Ex instrument
4 Operating voltage
48 Process pressure transmitter IPT-1* Vers. 3.0 - metalic sensor • 4 … 20 mA/HART
10 Supplement
31543
-EN
-090130