Electrical Connection - WIKA 831 Manual De Instrucciones

5. Commissioning, operation
Measuring assemblies
Proven measuring assemblies for various types of media.
Filling of the
measuring
EN
line
Examples
Pressure
gauge above
the tapping
point
Pressure
gauge below
the tapping
point

5.2 Electrical connection

The electrical connection must only be made by qualified skilled personnel. Connection
details and switching functions are given on the product label. Connection terminals and
ground terminal are appropriately marked. The instrument must be connected to the equipo-
tential bonding of the plant.
The instrument may only be operated with corresponding isolating amplifier (see
chapter 9.4, model 904.xx).
Performance data (see chapter 9 „Specifications")
Safety instructions for installation
Install instruments in accordance with the manufacturer's instructions and the valid stand-
„
ards and regulations.
Only connect circuits with the same voltage and type of protection to the switch contacts
„
and connection cables.
Size the connection cables for the largest current strength in the circuits and ensure
„
sufficient UV resistance and mechanical stability.
With flexible connection cables, use isolated end splices. Max. permissible conductor
„
cross-section 1.5 mm².
16
Liquid media
liquid liquid with
vapour
conden- boiling liquids
sate
Pressure gauges with inductive contact model 831, for hazardous areas
Gaseous media
completely gaseous
vapourised
"liquid dry air
gases"
partially completely
condensed condensed
(damp)
moist air steam
flue gases