Design And Principle Of Operation - PROMIX SM305 Operating Manual

Promix-SM305
3. SET OF DELIVERY
1 – Lock
2 – Latch assembled with plate
3 – Adjustment pad
4 – Self-tapping screw 3.3х30
5 – Self-tapping screw 3.5х25 (cup head)
(countersunk)
6 – Operating manual
Check completeness of the lock set when buying! After buying, the
manufacturer will not accept claims related to incomplete set.

4. DESIGN AND PRINCIPLE OF OPERATION

The locks are produced in two versions: normally opened (NO), and normally closed (NC).
NO lock is in the open state when de-energized and in the closed state when voltage is supplied.
NC lock is in the closed state when no voltage is supplied, and in the open state when the lock is
energized. For opening the lock, it is necessary to de-energize a normally open lock or to supply
voltage to a normally closed lock.
The external body of the lock and the matching latch plate have a special standard shape and
a suitable for the majority of plastic shapes. Examples of the lock mounting on plastic shapes of
various configurations see at the website
As the door is closed, the latch enters the slot in the lock and, overcoming the catch hook
force, is fixed transferring the catch hook from "open" position to "closed" position. As supply
voltage is applied (or, for a normally closed version, as the lock is de-energized), the catch hook
is blocked in the "closed" position and locks the latch.
"Open"
position
Fig.2
2
1 pc.
1 pc.
3 pcs.
4 pcs.
2 pcs.
1 pc.
4
Fig.1
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There is a possibility of emergency opening of the lock
by means of the release lever (see 7.1).
There are adjustments to the position of the bolt in the
horizontal and vertical planes. To correct the position
of the roller depending on the gap between the door
frame and the door, adjusting gaskets 3 are used (see
6.2, Fig.6).
The design allows the ignition of the normally open-
type to normally closed and Vice versa (see 7.2).
"Closed"
position
5
1
3
2