WIKA DIH10-Ex - Manual (Page 16)

GB
16 WIKA operating instructions model DIH10
14089810.01 03/2014 GB/D/F/E
6. Commissioning, operation
WARNING!
■ Never connect directly to a voltage supply (e.g. 24 V) as
this will damage the display.
■ Only use a transmitter that will not exceed the
permissible electrical limit values.
6.1 Operating a current loop
Power
supply
unit
DC 24 V
internal
bridge
DIH10
display
Housing
WARNING!
The display is only ever operated in a 4 ... 20 mA current
loop. A direct connection to a voltage supply (e.g. DC 24 V)
will lead to the display being damaged and will invalidate
the warranty.
For a functional check, the display must be powered from a
mA source (e.g. mA transmitter or calibrator).
In normal operation, the display is connected in series with
a 4 ... 20 mA transmitter or connected to the 4 ... 20 mA
analogue output of an instrument.
6. Commissioning, operation