Danfoss SonoMeter 40 Installation Manual page 6

Installation guide SonoMeter 40
- On the wall:
- Panel mounting on standard DIN-rail.
Important: It is prohibited to attach the electronic unit directly on the wall because there is a risk
that moisture may condense on the walls of the room or the temperature of the surface of the wall may
drop below 5 °C. In this case, it is recommended to mount the electronic unit so that to provide for an air
space of at least 5 cm between the unit and the wall surface.
Calculator seals
For design with permanently connected temperature sensors no additional sealing applies to the
electronic unit of a newly manufactured heat meter. Access to elements fixing the opening of the box,
configuration change activation contacts, and adjustment data change activation contacts is protected
by special easily breakable partitions.
a) b) c)
Access to elements fixing the opening of the box (a), configuration change activation contacts (b) and
adjustment data change activation contacts (c) (partitions easily breakable with a tool)
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