WIKA GDT-20 Mode D'emploi page 33

4. Transport, packaging and storage / 5. Commissioning ...
4.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in
installation site, sending for repair).
4.3 Storage
Permissible conditions at the place of storage:
Storage temperature: -40 ... +80 °C [-40 ... +176 °F]
■
Humidity: 90 % r. h. (non-condensing)
■
Avoid exposure to the following factors:
Direct sunlight or proximity to hot objects
■
Mechanical vibration, mechanical shock (putting it down hard)
■
Soot, vapour, dust and corrosive gases
■
Hazardous environments, flammable atmospheres
■
Store the transmitter in its original packaging in a location that fulfils the conditions listed
above.
WARNING!
Before storing the instrument (following operation), remove any residu-
al media. This is of particular importance if the medium is hazardous to
health, e.g. caustic, toxic, carcinogenic, radioactive, etc.
5. Commissioning, operation
5.1 Mechanical mounting
It is recommended that the transmitters are mounted on the gas tank with orientation of
the electrical output "at 12 o'clock".
5.1.1 Sealing the process connection
For sealing the process connections with parallel threads, use flat gaskets, lens-type
sealing rings or WIKA profile sealings at the sealing face .
Parallel threads
Model GDT-20

per EN 837
WIKA operating instructions transmitter, models GDT-20 and GDHT-20
Model GDHT-20

per DIN 3869
EN
33