VEGA VEGAMET 391 With SIL qualification - Manual (Page 10)

10
4 Mounting
VEGAMET 391 • With SIL qualification
38704-EN-130228
4 Mounting
4.1 General instructions
The instrument is designed for recessed installation in an instrument
panel, housing front plate or a switching cabinet door. The required
cut-out is 92 x 92 mm (3.63 x 3.63 in) according to EN 60529. When
installed correctly, protection rating IP 65 is guaranteed. As an
alternative, the instrument can be mounted in a switching cabinet or
protective housing by means of four screws (fixed with screws on rear
of housing). A mounting adapter for carrier rail mounting is available
as an option (top hat rail 35 x 7.5 according to DIN EN 50022/60715).
Note:
If the instrument is mounted via the screws or carrier rail, it must
always be inside a switching cabinet or protective case.
A VEGAMET 391 mit SIL-Qualifikation in Ex version is an auxiliary,
intrinsically safe instrument and may not be installed in explosion-
endangered areas.
Before setup, the Ex separating wall must be attached to Ex versions.
Safe operation can only be ensured if the operating instructions
manual and the EC type approval certificate are observed. VEGAMET
391 mit SIL-Qualifikation must not be opened.
4.2 Instructions for installation
1. Make sure that the cut-out required for mounting has a size of
92 x 92 mm (3.63 x 3.63 in).
2. Check for the correct position of the seal directly behind the front
plate and insert the instrument from the front into the front panel
cut-out.
3. Press the two tensioning elements into the provided gaps.
4. Screw in the two screws of the tensioning elements evenly with a
screwdriver.
Installation possibilities
Front panel mounting