VEGA Housing type 505 - Manual (Page 3)

Housing type 505 3
Product description
1 Product description
1.1 Function and configuration
The housing type 505 is used for single mount-
ing of a series 500 (width 5 TE = 25,4 mm)
signal conditioning instrument.
The housing can be either screwed directly
on to the mounting plate or mounted on to a
carrier rail (35 x 15 acc. to EN 50 022).
The housing generally consists of three com-
ponents:
- Socket with terminals
The connection terminals for the sensors
are located at the bottom and the ones for
the outputs and the power supply on top of
the socket. The necessary separation
between intrinsically safe and not-intrinsi-
cally safe circuits in Ex-applications is
thereby ensured. An appropriate adapter
is integrated in the socket for carrier rail
mounting.
- Upper part of the housing with guide rails
and ventilation slots. A sufficient ventilation
is also ensured when connecting several
housings in series. No external ventilation
is necessar y.
- The bag attached includes blue Ex-labels
and coded pins.
The module instruments of the new series
500
- VEGATOR…
- VEGAMET…
- VEGASEL… and
- VEGACOM 557
are generally provided for a power supply of
20 … 53 V AC or 20 … 72 V DC.
If you already have a power supply of
20 … 53 V AC or 20 … 72 V DC available,
you can use the housing without power sup-
ply unit.
If you only have other supply voltages avail-
able, use a housing with integrated power
supply unit.
The power supply unit is suitable for a volt-
age range of 90 … 250 V AC and DC and
can power the module units.
A later retrofitting of the housing with a power
supply unit is possible.
Note:
The housing type 505 is only designed for
series 500 instruments:
- VEGAMET 513(V) … 515(V)
- VEGASEL 543 … 547
- VEGATOR 521 … 527, 532, 535 … 537
- VEGACOM 557
The power supply unit of the housing pro-
vides no galvanic isolation from the supply
voltage. Series 500 instruments realise the
galvanic isolation in the signal conditioning
instrument.