Push-button alarm/manual trigger DKM 2.3
• Wide door swing with hidden hinges
• Easily replaceable glass pane
• Universal installation
• Generous space for routing cables
• Good accessibility of the trigger and
termination resistor
• The inability to lock the door when the
push-button is locked provides enhanced
safety against inappropriate operation
Technical Data
Applications:
Manual trigger for
smoke evacuation systems
DKM display:
green LED „operational“
red LED
„triggered“
yellow LED „malfunction“
Operating voltage: 24 V AC/DC
Button:
(changeover contact)
„Automatic Open“
Pressed:triggered
Released:automatic
Contact S2:
Switching voltage: 24 V AC/DC
Switching current: 1 A
Protection type:
IP 42, optional IP 54
Connecting terminals: max. 1.5 mm²
Cable feed from
top and bottom:
LDPE crimping sleeve M20 x 1.5
7.5 mm opening closed
Installation:surface-mounted
Relative humidity:
max. 95 %
Ambient temperature: -20 – +60 °C
Housing:aluminium
Dimensions:
125 x 125 x 34 mm (L x W x D)
Weight:
approx. 400 g
Type examination:
included in ERKS certification
Colors:
blue, orange, gray, and yellow
• Enhanced safety due to gold-plated contacts
• Visual trigger display possible
• Housings in different colors
• Custom labeling on request
Product description
The push-button alarm consists of the aluminum diecast housing and door. They contain the circuit board with terminals,
contact set, and push-button. The replaceable standardized
thin glass pane in a lockable door (protected by a standardized
lock) is a safeguard against unintended triggering. In the event
of an alarm, the glass pane is easily broken and the push-button
can be pressed without interference. A special retainer holds
the button in the pressed position. The manually actuated
retainer lever is used to release the button. Non-automatic fire
alarms must meet applicable codes and must form part of a
certified fire alarm system. They must be installed such that the
push-button is located 1.4 m (+20 cm) above the floor, and is
readily visible and freely accessible. The particularly low-profile
configuration of the push-button alarm eliminates the need for
in-wall installation. The alarm has openings on top and on the
bottom for metric cable threads. An opening can be punched
out on the rear face of the alarm for installation on an in-wall
cup. The alarm is rated for use in dry rooms. It is suited for
exterior installation in combination with a weather protected
housing.
Fire Protection | Data sheet No. 49102 | Version 08-2013 | 1 | 2
Push-button alarm/manual trigger DKM 2.3
Wiring diagram for push-button alarm (manual trigger)
Aluminum diecasting, orange
Aluminum diecasting, blue
Aluminum diecasting, gray Aluminum diecasting, yellow
3 LED,
3 LED,
3 LED,
3 LED,
„Automatic Smoke Evacuation“
„Automatic Smoke Evacuation“
„Automatic Smoke Evacuation“
„Automatic Smoke Evacuation“
Terminals 1 and 5 are only needed for the
cable monitoring option. See wiring example
below!
Example for „Automatic Smoke Evacuation“
Control unit – manual trigger – smoke alarm with a 2-core cable monitored for short-circuit
(If only manual triggers are used, the 2.2 kΩ resistor is connected on the last DKM 2.3 on terminals 7 and 5)
Control unit
ABA V-S3
+
+
-
9
Termination
resistor R b
2,2 k Ω
10
4
5
1 5 7
1 5 7
1
DKM 2.3
DKM 2.3
8
3
9 2 4 6 3
11
12
Contamination
6
2
3
Malfunction
+
-
1
Alarm
Power supply 24V DC
Rb
Alarm
6
7
9 2 4 6 3
Smoke alarm
ST -P-DA-STB
UG-2-O
13
14
Control sequence
smoke evacuation blower
Oppermann Regelgeräte GmbH | Im Spitzhau 1 | 70771 Leinfelden-Echterdingen, Germany
Phone +49 711 72723560 | Fax +49 711 7280527 | info@oppermann-regelgeraete.de | www.oppermann-regelgeraete.de
2 | 2 | Fire Protection | Data sheet No. 49102 | Version 08-2013 Specifications subject to change.