WIKA GDM-RC-100-T Betriebsanleitung Seite 21

5. Commissioning, operation
Inductive load with AC voltage
With AC voltage two protection measures are possible:
Example:
Contact protection measure
with voltage-dependent
resistor VDR
Example:
Contact protection measure
with RC element
Capacitive load
With capacitive loads elevated switch-on currents arise. These can be reduced by
series-connecting resistors in the supply line.
Examples: Contact protection measure with current-limiting resistor
U
B
5.3 Switch point setting
The switch points have a fixed setting as standard and cannot be adjusted. Thus, an
undesired adjustment of the switch points is excluded.
5.4 Electrical installation of the gas density monitor with digital output signal
(Modbus RTU)
®
The instrument shield does not act as a protective conductor for protection
of personnel, rather as a functional ground in order to shield the instru-
ment from electromagnetic fields.
WIKA operating instructions, model GDM-RC-100-T
R
1
Load
Load
Load
U
B
R
1
Load
21
EN