Endress+Hauser promag 31, Руководство по эксплуатации

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2. Mounting and Installation
Caution!
•
Pay consistent attention to the notes in this chapter regarding to assure reliable
measurement.
•
For explosion protected instruments the mounting regulations and the technical
data may differ from those stated here. Please refer to the Ex supplement of this
operating manual.
2.1 General Information
Type of protection IP 67 (EN 60529)
The instruments fulfils all requirements for IP 67. In order to assure the type of
protection IP 67 after installation in the field or servicing, it is essential to comply
with the following points:
•
The housing gaskets must be clean
and undamaged when inserted in the
sealing groove. If necessary, the
gaskets must first be dried, cleaned
or renewed.
•
All screws in the housing and the
screw cover must be screwed up
tight.
•
The cables used for connection must
possess the stipulated outside
diameter (see Chapter 6.3).
•
Tighten the cable entry (see Fig. 5).
•
Loop the cable before inserting. This
prevents moisture from penetrating
the cable entry (see Fig. 5).
•
Any cable entries not used must be
stopped with a screw plug.
•
The protective grommet must not be
removed from the cable entry.
Caution!
The screws of the Promag sensor housing must not be released, otherwise the
guarantee for the type of protection expires.
Note!
The sensor Promag F can optionally be supplied with the type of protection IP 68
(permanently under water to a depth of 3 m). In this case the transmitter (IP 67) has to
be mounted remote from the sensor.
Temperature ranges
•
The maximum permissible ambient and medium temperatures must be adhered to
(see Chapter 6 “Technical Data”).
•
When installed outdoors, specially in countries with high ambient temperatures,
a weatherproof hood should be provided as protection against direct solar
radiation.
b
a
028y
05
Fig. 5
Promag 31 2. Mounting and Installation
Hauser 11