3. Installation
104781 - MRF-2 | MRH-2 - V2.4 - 22.07.2020 Page 15
3. Installation
3.1 Location and climatic conditions
It is essential not to install the device under the following conditions:
- severe jolting, vibration or magnetic fields
- permanent contact with water
- relative humidity of more than 90%
- sharply fluctuating temperatures (condensation)
- dust, flammable gases, vapors, solvents,
- operation in an aggressive atmosphere (ammonia or sulphur fumes) - risk of
oxidation
- operation in the immediate vicinity of radio transmitters with high levels of spu-
rious radiation.
A physical separation between the device and inductive consumers is recom-
mended.
3.2 Unpacking and storage
If the packaging is damaged or something is missing, do not fit the temperature con-
troller. In this case please contact Welba.
If you keep the temperature controller for a period before using it, store it in a clean
dry place at a temperature of between -20°C and +70°C.
3.3 Installation of housing
MRF-2
For fixing the housing please follow the instructions:
Place the seal carefully in the groove. Ensure it is not twisted.
Insert the housing from the front through the switchboard cut-out.
Attach the holding frame in the rear position as shown by the picture.
Fasten the housing by using the screws provided.
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