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WIKA HYDRA-Gauge Serie Manual De Instrucciones página 10

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7. HYDRA-Gauge with switch contacts
7.2 Special requirements for the installation point
To avoid, amongst other things, switch signal "chatter", it must be ensured that the instru-
ments are mounted free of vibration.
GB
7.3 Electrical connection
The electrical connection must only be made by qualified skilled personnel. The permis-
sible electrical data, connection details and switching functions are given on the product
label affixed to the instrument.
The connection cables are appropriately marked.
To connect a PLC control unit or for direct switching of small capacities
PNP transistor
With PNP switching apparatus, the switched output is a connection towards PLUS. The
load RL between the switched ouput and the MINUS should be selected in a way not to
exceed the maximum switching current of 100 mA.
Connection and function circuit diagrams for electronic contact model 830 E,
3-wire system,
control and switching electronics in the sensor,
electrical connection via flying leads
With double contact
2nd contact
10
2
1
3
PNP
R L (load)
R L (2nd load)
4
PNP
Flag emerges from slot
+ U
sensor:
B
Contact open
_
(output not active)
Flag retreats into slot sensor:
Contact closed (output active)
WIKA operating instructions HYDRA-Gauge

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830.12e232.30.063