Installation and Connection
NFP - rev. 04 / 23.05.2018
page 25
them not less than 40 mm into the wall or 50 mm into appropriate dowels which need to be
set previously.
General
The field enclosure has cable glands and dummy plugs. Some of them are screwed in and
some are enclosed as spare parts or additional parts.
The transmitter contains:
•
1x gland M16x1,5 with counter nut
•
2x gland M20x1,5 with counter nut
With the supplied glands the following outer cable cross-sections can be connected reliably:
•
M16x1,5
3,5…10,5 mm
•
M20x1,5
6,0…14 mm
Cables featuring
larger
outside diameters need to be equipped with cable glands (min. IP65).
To guarantee the protection IP65 unused lead-ins have to be locked with an appropriate
dummy plug before the initial start-up.
20.5 Electrical Installation
20.5.1
Transmitter Connection
Important Note
The complete measurement system shall be installed and put into operation by qualified
personnel exclusively.
In terms of electric connection please note the device configuration since unspecified inputs,
outputs as well as power supply connections are not connected.
Warranty of a correct clamp-connection
Supply power and grounding are connected as described below using the spring clamps
1…3 (AC unit) or 3…5 (DC unit):
To open the spring contact use a slot screwdriver (blade width 2.4…3.5 mm) from
the top (hanging device from the front) to press down the clamp through the appro-
priate opening (see drawing below) and insert the connection wire/strand from the
front (hanging device from the bottom) into the contact opening up to stop.
WARNING
Disconnect the unit from mains power
Each time before opening the terminal clamp housing ensure to disconnect the NFP from
any voltage.
Disregarding may lead to electric shocks.
Содержание NFP
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