Securiton ASD 531, Technical Description

Page: 52 / 105

Mounting
52 / 105 ASD 531, Technical description, T 140 416 en
5.4.1 Opening and closing the detector housing
Warning about opening and closing
•
To open the detector box, use a flat-blade screwdriver no. 5 (8 mm). Smaller flat-blade screwdrivers may
damage the material of the rotary snap locks.
•
To actuate the rotary snap locks , press them firmly with the screwdriver towards the housing base and then
turn through 90°. The position of the lock slit shows the current status (see Fig. 15 ):
⇒
approx. 45° angled toward detector housing corner = closed;
⇒
approx. 45° angled toward detector housing edge = open.
In either position the rotary snap locks must snap into place.
Fig. 15 Open, closing and securing the detector housing
Once the detector housing is open, the four mounting holes in the housing base are accessible.
The detector housing is secured using the four supplied Torx wood screws (Ø 4.5 x 35 mm) and the four U-washers
(Ø 4.3/12 x 1 mm) “
A ”. Use a Torx screwdriver T20 to insert and tighten the screws.
The positions of the fastening holes are shown in dimensioned drawing Fig. 14 . When fastening to masonry, use the S6 dow-
els supplied.
Notice
When mounting several ASD 531 units next to one another, make sure that the mounting holes are drilled pre-
cisely . The device can be shifted by a maximum of ±2 mm horizontally and vertically to correct its mounting posi-
tion. A rotation correction of approx. ±5 mm is possible.
Opening / closing
A A
A A
X/Y = 2 ± mm
U = 5 ± mm
X
U
Y
Locking
1.
2.
press
turn
closed
open
closed
open
closed
open
closed
open