MEM2400LP Mechanical Electro Magnetic Lock
For Outward Opening Doors
Introduction
The patented MEM2400LP Mechanical Electro Magnet locking device is designed for securing all types of
outward opening side hung hinged doors. The MEM Lock has a holding force up to 1000Kg and is equipped with
a long distance Light Panel (LP) for Secure (green) / Non Secure (red) local monitoring indication on the device.
The MEM2400LP has been Fire Tested for up to 4 hours to both AS & BS Standards. The MEM2400LP locking
device is capable of releasing under door back pressure (pre-load) of up to 70KG.
Monitoring
The MEM2400LP lock is provided with a number of unique monitoring features for either local or remote
indication:
i. Door Status Signal (DSS) 1 set of normally open contacts (N/O -- blue).
ii. Lock Status Signal (LSS) 1 set of normally open contacts (N/O -- yellow).
iii. Early Warning (EW) x 2. 2 sets of single throw double pole switches.
EW1: (N/O -- purple); (COM -- orange); (N/C -- pink).
EW2: (N/O -- gray); (COM -- brown); (N/C -- white ).
Functions
The MEM2400LP Mechanical Electro Magnetic Lock operates on either 12 or 24 VDC. It is set ex-factory on
24VDC and can be changed over to 12V DC by voltage jumper selection(see installation diagram). When power
is applied to the lock and the door is in the closed position the Armature Plate is magnetically attracted to the
MEM device and both the DSS & LSS switches change status to NC.
When pressure is applied to the door in an attempt to open it unauthorised, the MEM Lock provides the patented
local or remote “Early Warning” (EW) security alarm indication.
Power supply
The operating switch or controlling contacts must be installed directly from the power source across the MEM
Lock. The DC output of the power supply must NOT be connected to earth but floating to prevent shock and
possible damage to the unit.
Wiring and Power Input
30 VDC max, 0.3 A max, 10 W max
EW1, 50 VDC,
0.3
A max.)
24 VDC max, 0.1 A max, 1 W max
EW2
50 VDC,
0.3 A max.
+
12 VDC, 0.
+24 VDC
NO - DSS (BLUE)
NO (GRAY)
COM (BROWN)
NC (WHITE)
NO - LSS (YELLOW)
24 A (RED)
, 0.
12 A
NO - DSS (BLUE)
NO (PURPLE)
COM (ORANGE)
NC (PINK)
NO - LSS (YELLOW)
GROUND (BLACK)
-
NOTE:
Ensure that wiring is connected correctly before supplying power to the MEM Lock to prevent
damage to the unit.
1
The armature plate must remain flexible to allow surface alignment with the MEM magnet
face
Installation diagram
Door Frame
SPARE
JUMPER
24 VOLT JUMPER POSITION
(D)
Magnet
12 VOLT JUMPER POSITION
Door
(B)&(C)
(B)
(D)
Armature Plate Installation Instructions
(C)
The armature plate (B) is screw fixed onto and through the Anti-Tamper-Bracket (C), with the countersunk
hex screw (A).The armature plate must remain flexible to allow surface alignment with the MEM magnet
face
. The MEM Lock will lose holding force without this floating alignment.
1. Drill a 12mm diameter clearance hole (timber door) or 12.5mm diameter clearance hole (metal door)
through the door at the armature plate center fixing location position.
2. Screw fix the Anti-Tamper Bracket (C) directly to the face of the door with the self-tapping screws provided.
3. Install armature plate (B) with countersunk hex screw (A) into and through the Anti-Tamper-Bracket (C).
Ensure that the 2 flat washers and 1 rubber washer are in place and tighten the screw into the tapped
hole of the Anti-Tamper-Bracket(C).
Note:The armature plate, when tightened, must remain flexible and be allowed to float as mentioned above.
4. Install the dome nut (D) through the clearance hole in the door and tighten onto the Countersunk hex
screw (A).
Apply drop of provided threadlocker
glue to the thread of the security top
sleeve nut to prevent from becoming
loose.
Spring
Key Screw
NOTE: Make sure to mount the rubber washer and
the flat washer for shock absor ption and to
obtain the holding strenght.
Locking Pin
sleeve nut
Security top
Armature plate(B)
Free-Angle
Countersunk
hex screw (A)
Rubber
washer
Flat washer
Anti-Tamper-Bracket(C)
Flat washer
2
dome nut(D)
Tapped hole
DOOR
MEM2400LP Output and Indication Status Table
Serial
number
1
2
3
4
5
Light feature
Condition
Power OFF
Door Open
Power OFF
Door Closed
Power On
Door Open
Power On
Door Closed
Power On
Door Closed &
Tampered
DSS EW1 EW2 LSS
Indication on Lock
(LP)
Power Off No
LP Indication
Power Off No
LP Indication
Red LP ON
Green LP ON
Green LP ON
MEM2400LP model (Light Panel)
Installation dimension
Bearing sleeve nut
5.5
30.5
158.0
30.0
Important Safety Precaution
Using the template provided, secure the MEM2400LP MEM Lock firmly on the door frame with the provided
screws and have it checked periodically for any possible screw loosening.
Maintenance
Contacting surfaces of the Mechanical Electro Magnetic Lock and Armature Plate must be kept free of
contaminating materials. Surfaces should be cleaned periodically with a non-abrasive cleaner. Do not
spray the MEM Lock or Armature Plate surface with any lacquer chemicals. This will cause serious
problems with the release of the Armature plate from the Mechanical Electro Magnetic Lock leading to
possible serious safety problems.
Armature Plate & Anti-Tamper
120.0
120.0
164.0
194.0
38.0
12.5
18.5
35.0
3
Trouble Shooting
PROBLEM POSSIBLE CAUSE SOLUTION
Door will not lock
Too much back
pressure when
power is off
Incorrect voltage.
No DC voltage to lock.
Incorrect wiring connection.
Security top sleeve nut higher than
magnet surface.
Back pressure exerted on the MEM lock
not allowing the magnetic lock to retract
back to its original position.
Check voltage jumper setting.
Check power and loose wiring.
Check wiring, refer to wiring instruction.
Screw fix the security top sleeve nut level with surface
with the provided key screw and apply thread-locker-glue.
Avoid applying continuous pressure on the door when
closed. Realign the door.
Accessories and Applications
MEM2400L (has to be ordered separately)
Adjustable L-Bracket for installation on outward opening doors with narrow header
frames or in conjunction with Glass-Door-Bracket U-Profile.
Adjustable L-Bracket for narrow header door frame
PRODUCT DESCRIPTION
The Adjustable L-Bracket is used where there is not
enough space to install the MEM device directly to the door
32
158
56.7
frame header. The L-Bracket acts as an extension of the
door frame. The Adjustable L-Bracket is also used in
combination with the Glass-Door Bracket “U-Profile” when
the lock has to be installed onto a frameless glass header.
AMGB24-12 (has to be ordered separately)
Glass-Door U - B r a cke t for installatio n on outward opening glass doors
158
40
56.7
PART NO. AMGB24-12
MEM2400 Anti-T amper-Bracket
Glass-Door “stick-on” mounting with MEM2400 Anti-Tamper-Bracket
35
194
164
38.1
4
PRODUCT DESCRIPTION
The Glass-Door U-Bracket is used to clamp-on the MEM
Lock as well as the Armature Plate to either a frameless
glass door or a frameless glass header. As mentioned
above, the adjustable L-Bracket has to be ordered
separately and can be used on frameless glass headers.
The product No. AMGB24-12 has one unit in the box.
Frameless glass door and frameless glass frame as one
door element would require 2 units of AMGB24-12 as well
as 1 unit Adjustable L-Bracket MEM2400L.
PRODUCT DESCRIPTION
The MEM2400 Anti-Tamper-Bracket comes with the
MEM2400LP MEM Lock as a standard fitting.
The bracket can be used for glass door “stick-on” mounting.
We recommend 3M self adhesive tape (e.g.4910VHB or
equivalent) and FSH Dress plate AMAB4-BC.
V1.0 2013
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