WIKA GDM-100-T Betriebsanleitung Seite 15

5. Commissioning, operation
The tightening torque depends on the sealing used. In order to orientate the measuring
instrument so that it can be read as well as possible, a connection with LH-RH adjusting
nut or union nut should be used. When a blow-out device is fitted to an instrument, it must
be protected against being blocked by debris and dirt.
5.1.3 Temperature load
The installation of the instrument should be made in such a way that the permissible
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 of the gas density monitor
The instrument must be grounded via the process connection.
■
For cable outlets, make sure that no moisture enters at the cable end.
■
Select a cable diameter that matches the cable bushing of the connector. Make sure
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that the cable gland of the mounted connector has a tight fit and that the seals are
present and undamaged. Tighten the threaded connection and check that the sealing
is correctly seated, in order to ensure the ingress protection.
Connection details and switching functions are given on the product label. Connec-
■
tion terminals and ground terminal are appropriately marked.
5.2.1 Limit values for the contact load with resistive load
Maximum rated operating
voltage Ueff
Rated operating current
Switch-on current
Switch-off current
Continuous current
Maximum switching power
WIKA operating instructions, model GDM-100-T
Spanner flats
Sealing face

Gas-filled instruments Liquid-filled instruments
AC 250 V
1 A
1 A
0.6 A
30 W, 50 VA
Sealing in the thread

AC 250 V
1 A
1 A
0.6 A
20 W, 20 VA
EN
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