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Industry Mobility
Betriebsanleitung
PZENTW
A6Z08101637795/EN1/000/B
11
[7620] ELP 319
LANGE_THO
A25000-X22-Q9-7-7620
of
DC013
20081022
Notice no.: 500000097465
33
Copyright (C) Siemens AG 1998
All Rights Reserved -
0000ZQ6U.doc
8.1.1 Housing
The cast-iron housing 1 (see Figure 2) has been designed for maximum reduction of condensation.
The reduction in size of base which is near to the ground and the enlargement of sides allow a better
compensation of temperature between equipment and environment. Ventilation openings 10 located
opposite each other ensure a good circulation of air.
The housing has a tread-proof aluminium cover 12 with a well-sealing gasket. By turning tension
screw 17, the gasket is compressed. The pressure can be adjusted by means of adjusting screw 11.
8.1.2 Detector Slides
The detector slides 9 (see Figure 2), made of drawn steel, have a carrier 15, a stop pin 21 and
insulated fork heads 8 for linking the detector rods. The detector slides are supported by guide sleeve
6 and a cast stalk of the housing. By means of these standard detector slides, together with movable
contact arrangement 2, point openings from 30 mm to 190 mm can be detected. The travel of the
open point blade resulting from the locking stroke must not exceed 70 mm until carrier 15 reaches the
slide of the closed point blade. The carrier travel is so dimensioned that a broken detector rod is
indicated as soon as the slide stroke exceeds the travel resulting from the locking stroke by at least
10 mm. This applies even to slide strokes below 80 mm if a correspondingly dimensioned spacer
block is placed in the slot for the carrier (see also Figure 3).