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8. Transmitter for level measurement
Specifications
Power supply U
B
for Non-Ex version
for Ex version
Permissible residual ripple
Supply voltage effect
Output signal
Permissible max. load R
Effect of load
Output signal adjustment
Zero point, electrical
Scale selection
Linearity
Permissible
ambient temperatures
Compensated temp. range
Temperature coefficients in
compensated temp. range
Mean TK of zero
Mean TK of span
Ex protection
Ex certification
Conformity specifications
Power supply U
i
Short circuit rating I
i
Rating P
i
Internal capacitance C
Internal inductance L
Medium temperature
Ambient temperature
CE-Conformity
Wiring
Wiring protection
Ingress protection
Wiring details,
2-wire
1) Only possible within 30 seconds of connecting the supply voltage
WIKA operating instructions differential pressure gauge models 712.15.160, 732.15.160
DC
% of span/10 V
% ss
A
% of span
A djustment of zero point through brief bridging of terminals 5 and 6,
or using the „scale selection switch" option, selectable via button
% of span
°C
°C
% of span/10 K
% of span/10 K
DC
mA
W
nF
i
mH
i
°C
°C
Models 891.44 and 892.44 (Ex Version)
12 V < U
≤ 30 V
B
see the section ‚Ex protection'!
≤ 0.1
≤ 10
4 ... 20 mA, 2-wire system
for Non-Ex versions, Model 891.44:
R
≤ (U
- 12 V) / 0.02 A with R
A
B
for Ex versions, Model 892.44:
R
≤ (U
- 14 V) / 0.02 A with R
A
B
≤ 0.1
4 scales selectable via BCD switch
≤ 1.0 (limit point calibration)
-40 ... +80, -40 ... +60 with oxygen
-40 ... +80
≤ 0.3
≤ 0.3
according to EC-Type Examination Certificate
BSV 08 ATEX E 018 X for Model 892.44
EEx II 2G EEx ia IIC T6
14 ... 30 V
max. 100
max. 1
12
negligible
-40 ... +80, -40 ... +60 with oxygen
-40 ... +60 (T6)
interference emission and immunity per EN 61326
L-connector (screw terminals up to 2.5 mm²)
protected against reverse polarity and overvoltage
IP 65 per EN 60529 / IEC 529
Earth, connected
to case 2)
U
+/Sig+
B
0V/Sig-
in Ω and U
in Volt
A
B
in Ω and U
in Volt
A
B
1)
Terminals 3, 4, 5 and 6: only for internal
application
2) This connection must not be used
for equipotential bonding. The
instrument must be incorporated in
the equipotential bonding via the
process connection.
GB
11
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