Electrical Switch Contacts - WIKA 232.30.63 Mode D'emploi

7. Electrical switch contacts

7. Electrical switch contacts
Switching functions
The switching function of the switches is identified by the indices 1 or 2.
851.1 = NO - normally open, contact makes (clockwise pointer motion)
851.2 = NC - normally closed, contact breaks (clockwise pointer motion)
Electrical load
max. switching voltage: AC/DC 24 V
max. contact rating:
max. current:
Electrical connection
The electrical connection must only be made by qualified skilled
■
personnel.
Cable outlet 1 m length, conductor cross section 0.14 mm
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The terminal assignment is stated on the connection label of the
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pressure gauge
WARNING!
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Switch point adjustment
The set points of the switch points are freely adjustable over the full scale
range.
The switches are set via the mark pointer on the dial's circumference.
The bayonet ring must be removed in order to adjust the switch point.
Electromagnetic compatibility
Reed switches are electrically passive components, which, when used in
accordance with their intended use, do not affect their surroundings.
WIKA operating instructions model 232.3x.063 with 851 per ATEX
10 W
0.5 A
The instruments do not provide for incorporated
overcurrent protectors.
If overcurrent protectors are requested, these have to be
provided for externally.
The instruments must be connected to the equipotential
bonding of the plant.
GB
2
, flying leads
13