Megalarm P300W User instructions

setting up your wireless system
P300W, C300W, D300W and wireless interface
Standards
NFS 61 936
NFS 32001
EN 54-11

Megalarm wireless system
General points
The Megalarm mini wireless fire alarm system is designed for small offices, shops, workshops and
temporary buildings. It can combine up to 10 units consisting of 1 master unit and 9 slave units, either
manual call points or smoke detectors. The system is powered by batteries and requires no mains voltage
supply.
The master P300W can be combined with several C300W radio manual call points (MCP) and radio smoke
detectors D300W the instructions in this manual will enable you to commission all elements together,
which when activated will register an alarm sound from the P300W master and D300W detector.
Also you will find instructions of how to attach a radio link alarm interface module to connect to an existing
fire alarm system.
Instructions for decommissioning can be found on the last page should you encounter any difficulties.
Technical Data
P300W master unit
Power Lithium 3V battery capacity: 1300mAh, IEC standard: CR17345 for the radio module & 6LR 61 Alkaline 9 volts battery
for sounder/beacon
Installation Method Surface mounted
Sounder Integral 90db within 2 meters
Strobe Lights Integral high power LEDs
Dimensions 126(W)x242(H)x75(D)mm
Colour White ABS
Manual Call Point Integral/wireless complete with 3V lithium battery
C300W manual call point
Power Integral lithium 3V battery, capacity: 1400mAh, IEC standard: CR17345
Range Maximum range between manual call point and base = 100m in open area conditions
Installation Mounting Surface mounted
Resetting Key Included
D300W wireless smoke detector
Power Lithium sealed in battery (non-replaceable)
Sounder Integral 85db
Test Button Integral
Operating Temperature 0 ºC - 55 ºC
Radio Linking Frequency 868 Mhz
Range 100m range in open area conditions
Wireless interface
Power 12V via fire alarm panel
Operating Temperature 0 ºC - 55 ºC
Dimensions 83(W)x83(H)x46(D)mm
Interconnection Capacity Smoke detectors unlimited
Range 100m range in open area conditions
Testing
Battery to be tested annually

setting up your wireless system
step 1 your master unit
Commissioning your system requires that you make a P300W unit the master and all other components slaves (C300W or D300W)
stage one, opening and closing your master P300W unit
Open your master unit using the black key supplied. Using the 2 pins of the key press in the 2 slots on the underside of the
unit. To close the unit simply click the lid back into place and return key to the holding slot on top of the unit
stage two, mounting your P300W to the wall
Fix the box at maximum 1.30 meters high using the integrated spirit level. Dimensions can be found on the drawing below

stage three, activating the batteries
Caution: Please ensure the batteries are correctly installed, observe the correct polarity as the PCB may be
damaged if this is not carried out.
1. Connect the 9 volts 6 LR 61 Alcaline battery to the corresponding terminals in the box,
on the right of the loudspeaker.
2. remove the paper insulater from the lithium 3Vcc battery in the part reserved for the MCP (
lowest part of the box).
step 2 adding a manual call point C300W into the system
stage one, opening your manual call point (MCP)
Simply unscrew the holding screw in the front of the box, then lift off the front face.
stage two, mounting the MCP
Fix the box at maximum 1.30 meters high.
Dimensions can be found on the drawing below
Note: Avoid placing the units on or near metal objects, electrical equipment or cabling.
Note: Do not install the unit nearer than 1 meter to electrical switchboard or cabling, metal objects or radio
disturbance sources.

stage three, activating the batteries
Caution: Please ensure the batteries are correctly installed, observe the correct polarity as the PCB may be
damaged if this is not carried out.
Remove the paper insulator from the lithium 3Vcc battery.
stage four, configuring your MCP into the system
Note: Do one configuration at a time
1. Open the master unit and the first MCP.
2. Place the MCP next to the master unit.
3. Press the CONFIG button in the MCP for 5 seconds, the unit will beep to indicate each second.
4. Once the unit has sent the configuration signal the buzzer will pulse and the amber LED will illuminate. Release
the CONFIG button. The MCP now sends a request to be combined to an existing group. This is indicated by 1
beep every 3 seconds
5. Press the VALID button in the master until you hear a long beep
6. The MCP is now linked to the master unit and will now enter the ‘signal strength’ mode.
7. Take the MCP to the preferred location and ensure the signal strength is adequate, the unit will beep indicating
the signal strength. You should try to achieve at least a signal strength of 3
Number of Beeps 1 2 3 4 5
Signal Strength Very weak Weak Medium Good Very good

8. Once positioned in its final setting press the VALID key on the MCP it will beep 4 times to enter normal
service.
9. the master will also beep 4 times as it enters normal service. The system is now operational.
Note: to add further call points or stand alone P300W units (as a slave to the master) repeat previous steps 1 to 9
Note: maximum extra components as slaves is 9
step 3 adding a D300W radio smoke detector
Note: Do one configuration at a time
1. To link the smoke detector to the master, open the master P300W box.
2. Place the unit you wish to link next to the master unit and remove the battery isolation tag from the underside
of the smoke detector. Put the key away in the location space provided (see below on the right).
3. Within 20 seconds of removing the tag, press the clear button on the side of the smoke detector and the unit
will beep, release the button and the LED will flash Blue.
4. Press the VALID button in the master unit until you hear a long beep.
5. The smoke detector is now linked to the master unit and will now enter the ‘signal strength’ mode.
6. Take the detector to the required location for installation, the detector will regularly beep up to 5 times to
indicate signal strength.
Number of Beeps 1 2 3 4 5
Signal Strength Very weak Weak Medium Good Very good
6. if the signal strength is acceptable press the button on the side of the smoke detector and it is now paired
with the master. The system is now operational.
Note: to add further smoke detectors repeat previous steps 1 to 6

step 4 radio link alarm interface module
stage one, Wall fastening
To open / and closing the box: remove the 4 screws from the lid.
Dimensions : H 83 mm x L 83 mm x D 46 mm
Hole pitch for wall fixing: 40 mm.
Avoid installing the radio link alarm interface module in a metallic cupboard or cabinet or fixing it on a metallic wall, as
they could screen against radio waves.
Use the integrated radio link quality checking feature to determine the best location.
stage two, Wiring
Suitable wire : 8/10th, max. length : 100 meters.
Pass the wires through one or several cable glands.
stage three, configuring your interface into the system
Follow the steps to connect the radio link interface module to a smoke detector or
a stand alone alarm
1. Power up the radio link interface module (slave).
2. Press the configuration key for 5 seconds, you will hear 3 beeps, The interface sends a
message to be associated to the existing group.
4. Press the test key of a smoke detector or the validation key of a stand alone alarm.
You will hear one long beep
5. The interface is now linked to the master unit and will now enter the ‘signal strength’ mode.
6. Take the interface to the required location and ensure the signal strength is adequate, the unit will beep indicating
the signal strength. You should try to achieve at least a signal strength of 3 (see previous tables - 5 good 1 bad)
7. Mount the slave element on the chosen location.
8. Press the configuration key of the interface you will hear 4 beeps as it exits optimisation mode and a further 4 beeps
as it exits configuration mode.
9. The system is now operational
To Cancel the connection with a smoke detector or a stand alone alarm
While in step 2, press the configuration key for 10 seconds (instead of 5 seconds) (see stage three step 2. above).
4 long beeps will be heard indicating that the connection is cancelled.

Maintenance notes
We advise you to keep the equipment clean and to ensure the installation is in a dry and ventilated area.
Checking that components are connected and their signal strength in Diagnostic Mode
To activate the diagnostic mode, press the transparent switch on the master unit for 5 seconds.
The diagnostic mode is activated when the green LED of the master unit blinks.
Each connected unit beeps, the beeps correspond to the quality of the signal strength.
Faults
Master unit Faults
A fault is identified by a flashing orange light on the master unit and a number of beeps on the master and/or the MCP.
Number of beeps Faulty Unit Fault Explanation
1 Master Battery The master unit battery is faulty
2 Master MCP Battery The master unit MCP battery is faulty
3 MCP Battery An MCP has a faulty battery
4 MCP Communication An MCP has a communication fault
Manual call point (MCP) faults
Number of beeps Faulty Unit Fault Explanation
1 MCP Battery The manual call point battery is faulty
2 MCP Communication No signal has been recieved
Battery Fault
Replace the defective Lithium 3Vcc CR 17 345 for the MCP including the One installed in the master unit.
Replace the 9V 6 LR 61 battery inside the master unit.
Communication Fault
Go in to the diagnostic mode described earlier to check the quality and strengh of the signal, relocate if required or
investigate if there is a new obstruction or interference causing the fault.
Clearing Configuration / Decommissioning
If at any point you are unsure of the number of MCP’s paired with the system, or are having problems commissioning,
or wish to relocate the wireless system or reduce the number of paired units, then you will need to decommission
the slaves one at a time. Both the P300W and D300W can not be decommissioned, however, the D300W can be
moved and re-commissioned , using the normal procedureas set out in the step 3 to a different master
To decommission the a C300W, you will need to:
Press and hold the CONFIG button, then whilst holding down the CONFIG button also press and hold the VALID button,
until you here 3 short beeps, 4 long beeps followed by 1 short beep and then release the buttons, the C300W is now
decommissioned from the system and can be added back using the normal procedure as set out in step 2.