WIKA GDM-63 Operating Instructions Manual page 13

5. Commissioning, operation
5.1.3 Temperature load
The installation of the instrument should be made in such a way that the operating
temperature, also considering the effects of convection and thermal radiation, neither
exceeds nor falls below the permissible limits.
The influence of temperature on the indication and measurement accuracy must be
observed.
5.2 Electrical mounting
The instrument must be grounded via the process connection.
■
For cable outlets, make sure that no moisture enters at the cable end.
■
Connection details and switching functions are given on the product label. Connection
■
terminals and ground terminal are appropriately marked.
5.2.1 Limit values for the contact load with resistive load
Limit values
Maximum rated operating voltage U
Rated operating current
Switch-on current
Switch-off current
Continuous current
Maximum switching power
Do not exceed the limit values. In order to permanently ensure safe operation, the
following load values are recommended:
Voltage (per IEC 38)
Resistive load
DC/AC DC
230 V 100 mA
110 V 200 mA
48 V 300 mA
24 V 400 mA
The switching current must not be less than 20 mA with low voltages for switching relia-
bility reasons.
For higher loads, and for instruments with liquid-filled cases,
WIKA model 905.1X contact protection relays are recommended.
WIKA operating instructions gas density monitor model GDM-63
AC 250 V
eff
1 A
1 A
0.6 A
30 W, 50 VA
Inductive load
AC cos ϕ >0.7
120 mA 65 mA
240 mA 130 mA
450 mA 200 mA
600 mA 250 mA
EN
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