VEGA VEGASWING 66 - transistor (NPN-PNP) With SIL qualification - Manual (Page 14)

14
4 Mounting
VEGASWING 66 • - transistor (NPN/PNP)
44951-EN-130805
The max. permissible pressure is specified in chapter "Technical
data" or on the type label of the sensor.
Note:
Seal for instruments with process fitting thread
The thread and the seal form on the mounting boss correspond to
DIN 3852, part 1, screwed plug Form B (sealing via metallic sealing
edge). In this case, no seal is required.
Instruments for high temperatures have a temperature adapter be-
tween process fitting and electronics housing. This is used for thermal
decoupling of the electronics from high process temperatures.
Information:
The temperature adapter may be embedded in the vessel insulation
only up to max. 50 mm (1.97 in). Only then is a reliable temperature
decoupling guaranteed.
1
2
Fig. 8: Mounting the instrument on insulated vessels.
1 Temperature isolation - max. 50 mm (1.97 in)
2 Ambient temperature on the housing
If VEGASWING 66 is mounted in the filling stream, unwanted false
measurement signals can be generated. For this reason, mount VE-
GASWING 66 at a position in the vessel where no disturbances, e.g.
from filling openings, agitators, etc., can occur.
This applies particularly to instrument types with long extension tube.
Mounting in the vessel
insulation
Inflowing medium