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7. Starting, operation
Signal output and allowed load
4 ... 20 mA, 2-wire
permitted range
Current for external display- or evaluation equipment can be supplied directly from the circuit, when operating a transducer
with current output. A voltage drop specific to the display unit is to be considered. The UHP-display unit of type WUR-1 has a
specific voltage drop of 6 V. The transducers are short-circuit-proof for a short time, but anyhow any incorrect connection of
the instrument should be avoided.
Power supply
Load (e.g. display)
U
/Sig
Positive supply / measurement connection
B+
+
0V/Sig -
Negative supply / measurement connection
10
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio WU-1X
Current output (2-wire)
R
≤ (U
– 10 V) / 0,02 A
A
B
with R
in Ω and U
in Volt
A
B
Voltage output (3-wire)
DC 0.1 ... 5.1 V:
R
■
DC 0.1 ... 10.1 V:
R
■
DC 1 ... 5 V:
R
■
DC 0 ... 5 V:
R
■
DC 0 ... 10 V:
R
■
with R
in Ω and U
in Volt
A
B
> 5 kΩ
A
> 10 kΩ
A
> 5 kΩ
A
> 5 kΩ
A
> 10 kΩ
A
GB
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