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14063434.02 10/2019 EN/DE
WIKA operating instructions transmitter, models GDT-20, GDHT-20
EN
3. ... / 4. Design and function / 5. Transport, packaging and ...
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Impulse voltages per IEC 61000-4-5:
GDT-20: 2 kV conductor to ground, 1 kV conductor to conductor
GDT-20: 1 kV conductor to ground, 1 kV conductor to conductor
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High-frequency fields per IEC 61000-4-6:
GDT-20: 10 V
GDHT-20: 3 V
For special model numbers, please note the specifications stated on the delivery note.
For further specifications see WIKA data sheet SP 60.09 (GDT-20), SP 60.14 (GDHT-20) and
the order documentation.
4. Design and function
4.1 Code designation
The described transmitters are equipped with sensors for pressure, temperature and
humidity (only GDHT-20). From this, the integrated microprocessor electronics calculate the
status parameters of SF
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gas for gas density and humidity (only GDHT-20) with the help of
algorithms.
4.2 Scope of delivery
Cross-check scope of delivery with delivery note.
5. Transport, packaging and storage
5.1 Transport
Check the transmitter for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
5.2 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).
5.3 Storage
Permissible conditions at the place of storage:
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Storage temperature: -40 ... +80 °C
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Humidity: 90 % r. h. (no condensation)