WIKA PGS23.063 - Manual (Page 13)

WIKA operating instructions model 232.3x.063 with 851 per ATEX 13
GB
11041781.03 03/2011 GB/D/F/E
7. Electrical switch contacts
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.
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: 10 W
max. current: 0.5 A
Electrical connection
■ The electrical connection must only be made by qualified skilled
personnel.
■ Cable outlet 1 m length, conductor cross section 0.14 mm 2 , flying leads
■ The terminal assignment is stated on the connection label of the
pressure gauge
WARNING!
■ 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.