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11265191.10 08/2019 EN/DE
Differential pressure gauge models 712.15.160, 732.15.160, optional for hazardous areas
EN
8.3 Integrated transmitter electronics (option)
Specifications
Models 891.44 and 892.44 (Ex version)
Supply voltage U
B
Non-Ex version, model 891.44:
DC 12 V < U
B
≤ 30 V
Ex version, model 892.44:
DC 14 V < U
B
≤ 30 V
Influence of supply voltage
≤ 0.1 % of full scale/10 V
Permissible residual ripple
≤ 10 % ss
Output signal
4 … 20 mA, 2-wire
Permissible max. load R
A
R
A
≤ (U
B
- 12 V)/0.02 A with R
A
in Ω and U
B
in V, however max. 600 Ω
Effect of load
≤ 0.1 % of full scale
Adjustability
Electrical zero point
by bridging terminals 5 and 6 or with BCD switch option via key
1)
Scale selection (option)
4 scales selectable via BCD switch
Linear error
≤ 1.0 % of span (terminal method)
Compensated temperature
range
-40 … +80 °C
Temperature coefficients in the compensated temperature range
Mean TC zero point
≤ 0.3 % of span/10 K
Mean TC span
≤ 0.3 % of span/10 K
Electrical connection
Cable socket PA 6, black
Per VDE 0110 insulation group C/250 V
Cable gland M20 x 1.5
Strain relief
6 screw ter PE for conductor cross-section 2.5 mm²
Electrical safety
Protection against reverse polarity and overvoltage
Ingress protection
IP65 per EN/IEC 60529
Safety-related maximum values for Ex version, model 892.44
Supply voltage U
i
DC 14 ... 30 V
Short-circuit current I
i
≤ 100 mA
Power P
i
≤ 720 mW
Internal capacitance C
i
17.5 nF
Internal inductance L
i
negligible
1) Only possible within 30 seconds of connecting the voltage supply
8. Specifications
