
Electronic Monitoring and Control Solutions

Alarm Unit - ALU
Technical Section
To Add To Add
Unit Customisation Customisation
Description Order Code Option 1 Option 2
(Example - An ALU 4 with customisation option 1 = 16.002A)
2 Channel Unit ALU 2 - 16.001 A B
4 Channel Unit ALU 4 - 16.002 A B
6 Channel Unit ALU 6 - 16.003 A B
Wallmount Kit is Included, Extra Wallmount Kit - 10.002
Additional Mounting Options
Cassette Mounting System - 09.012
Space Saver Cassette Mounting System - 09.013
If a Cassette is ordered we will be in touch to ask if there are
any retrofit bracket requirements with your order.
Our Technical Pages have been enhanced and optimised for Mobile Phone compatibility, this is to allow installers to easily be able to follow our installation procedures on site if required
Electrical Supply
AC Range - 85 to 264V @ 47 TO 440 Hz
AC Current (Typical) 0.03A/230V AC

Ultra Low Power
Fuses (Located on PCB)
24V DC Supply Fuse (F1) - 630mA 20 x 5mm Thermal
Internal Mains Supply Fuse (F2) - 2A 20 x 5mm Thermal
Digital Inputs (Non Isolated)
Supply Voltage (provided by ALU) +24V DC
Input Current at 24 V DC 7.7 mA
Inputs compatible with normal dry contact switches, PNP / NPN and NAMUR specification inductive proximity switches.
Digital Outputs (Dry Contact Volt Free)
Current Rating 0.5A @ 24V DC
Enclosure
Material - ABS
Rating - IP65
Dimensions - 271 x 120 x 170 mm
Colour - Light Grey RAL 7035
Mounting Holes - Accept 4 x M4 screws
ALU is Supplied with a Wall Mounting Kit
Optional Cabinet Mounted Cassette System Available - CLICK HERE for more information.
Design Compliances
Designed in compliance with
-
BS EN 60204-1:2018 Safety of machinery. Electrical equipment of machines
Tested and FULLY compliant with
EN 61326-1:2021 Electrical Equipment for Measurement Control and Lab Use - EMC Requirements.
EN 55011:2016+A2 Conducted RF Emissions
-
EN 55011:2016+A2 Radiated Emissions
-
EN 61000-4-2:2009 Electrostatic Discharge
-
EN 61000-4-3:2006+A2 Radiated Immunity 80 MHz to 6 GHz
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EN 61000-4-4:2012 Fast Transient and Burst Immunity
-
EN 61000-4-5:2014+A1 Surge Immunity
-
EN 61000-4-6:2014 Conducted RF Immunity
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EN 61000-4-11:2020 Mains Dips and Interruptions
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EN 61000-4-8:2010 Power Frequency Magnetic Field Immunity
Mounting (with included Wall Mounting Kit)


Connecting Digital Inputs
The ALU is supplied with Blanking Plugs fitted to maintain sealed integrity, A separate cable gland is supplied for each Digital Input which can be found inside the monitor.
1 With a flat bladed screwdriver insert it into the gap on the right hand clip as shown and either twist or lever the screwdriver to the right to open the clip and you will find the cable glands. 2 With an appropriate screwdriver remove the required blanking plug and using the same seal and nut fit the cable gland 3, Repeat the procedure to accommodate the amount of Digital Inputs you require
2

DO NOT remove a blanking plug and fit a cable gland if it is not required as this will result in loss of sealed integrity and may invalidate your warranty.


1

Inside you will find the cable glands.
If for any reason the cable glands are missing please contact your supervisor or your installer.

3
As you will now be wiring your Digital Inputs this may be a good time to decide which Input you want to wire to which Channel as you should be aware that if you require a time delay on an input before it activates this MUST be wired into Channel 2 Only (1 to 10 seconds adjustable)
It may also be useful to fill out a Configuration Sheet for your future reference and also to mark/label your input cables for easy identification, You can download and print an ALU Configuration sheet HERE or from our Downloads page for you to fill out and print or print and fill out to save or file for your future reference.
The cable from the Digital Input device should be passed through its cable gland and terminated into its corresponding connecting plug in the circuit board
Feed your Input Cable
through your Cable Gland
1

2
We recommend that you
crimp wire ferrules or
bootlace ferrules to the
bare wires


5
Plug your wires back into the
socket and tighten the Cable Gland

Unplug your required
green Input plug
3

Wire your 2 wires into
your green Input Plug
(I/P and +24v) as marked on the PCB
4

If you have a 3-wired device and are unsure how to
establish which 2 wires you need then please use
our simple guide to identify which wires you need
for the correct operation
Which can be found HERE