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Battery Information and safety
Do not use if the battery casing appears damaged
Do not attempt to recharge the battery
Do not short circuit
Only use supplied battery with the IN4MA Metron
The battery is a high energy density sealed battery containing dangerous (Lithium) and
deleterious (Thionyl Chloride) materials. For this reason, improper handling of the battery
could lead to distortion, leakage, overheating, explosion, fire, or generation of
irritating/corrosive gases, causing bodily injury or equipment trouble. Please observe the
following instructions to prevent accidents.
Do not use if you suspect any damage to the casing, cabling or connector.
Do not connect to a Metron when the programmer is connected.
Be careful not to drop – if dropped please do not use.
Do not short circuit the battery – if you suspect this possible then disconnect and do not use.
Do not apply heat to the battery.
Do not expose the battery to open flames.
Never disassemble the battery.
Never deform the battery.
Do not reverse polarity the battery – take extra care to ensure connections are the right way
round.
Do not connect 2 or more batteries together.
Do not store the batteries in direct sunlight.
Store batteries in non conductive trays (e.g. plastic, wood or cardboard).
Do not use near water.
Do not have rings on your fingers when handling batteries, otherwise wear insulating gloves.
First aid measures:
Only in case of contact with internal components of the battery:
Skin contact: flush with plenty of water
Eye contact: flush with plenty of water (eyelids held open)
Inhalation: breath fresh air and give oxygen or artificial respiration by specialist people
Ingestion: drink much water and consult a doctor
Fire fighting measures:
Evacuate the building and leave it to the professionals. Advise the fire fighters that there
are batteries in the building and the advice is to use extinguishers type D, Lith-X, DO NOT
USE WATER in case of battery leakage
Special hazards: irritating vapour
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Special protective equipment: wear protective clothing, use self-contained breathing
apparatus with filtered cartridge type ABEK
Leakage measures
In case of break of a battery, all the people must go away from the place where the
incident happened and come back only after the dissolution of the irritating gas.
Broken batteries or battery packs must be covered with sodium carbonate (Na2CO3) or dry
sand, place them in approved container and dispose in accordance with local regulation.
Disposal
Please return batteries to Powelectrics for disposal. Ensure suitable packaging in used. Do
not use air freight.
Replacing the Battery
The battery used in the Metron must be supplied by Powelectrics Ltd. Its warranty will be void
if any other battery is used as it may damage the Metron or cause it to malfunction.
To remove the battery, simply remove the plug from the PWR socket – Do not pull on the
connecting wires. The battery can now be easily pulled from the retaining clip. Push the new
battery into the retaining clip centrally, and then reconnect the plug to the socket on the
Metron board.
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OVERVIEW
This document describes all the functions, features and interfaces of the IN4MA Metron
telemetry device.
Applications
A few of the applications that this device has been designed for include:
Remote meter reading
Remote people counting
Summary of Technical Features
Ability to interface with up to four pulse signals
On-board wetting voltage
Typically > 2 year battery life (check)
LCD Display to help with on-site setup
Tri-band operation
As the Metron is a battery powered device it has been designed in such a way to extend this
life to a maximum. This means during normal operation the display will be off, the sensors
excitation will be off and the GSM engine will be powered down. As required these are
switched on by the processor and when finished with they are switched off.
GENERAL DECRIPTION OF OPERATION
Normally the unit will be ‘asleep’ with just the processor running, providing a wetting voltage
of 3.6 volts. When the Metron needs to communicate over the mobile phone network it will
power up the GSM module (this takes a minute or 2 as the module needs to register onto the
network – it’s like switching on your mobile phone). Whilst the modem is powered it can
receive messages for changing the configuration. The LCD screen shows the actions the
Metron is performing.
The Metron will send text messages to your mobile phone, or Gateway (our internet based
reporting and alarm handling solution). The Metron can send messages periodically.
NAVIGATION BASICS
A common method is used throughout the menu system for navigation.
To move up within a menu – You must use the top button to the left of the screen (UP) to
move up if you are navigating in a menu.
To move down within a menu – You must use the bottom button to the left of the screen
(DOWN) to move down if you are navigating within a menu.
To select an item on a menu – You must press the central button to the left of the screen
(ENTER) for less than one second to select an item if you are within a menu.
To go to the previous menu – You must press the central button to the left of the screen for
more than one second to return to the previous menu. You should continue to hold until the
previous menu appears.
To return to the previous menu when displaying information – If the Metron is just
displaying information, you can return to the previous menu by simply pressing the central
button to the left of the screen briefly.
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GETTING STARTED
1. Open the packaging Cut the seals from the box and open the cardboard lid
2. Remove the lid Using a large Phillips screwdriver, remove the four screws
fastening the plastic lid to the enclosure and remove the lid
3. Fit the SIM card Remove the four outer screws from the circuit board and tilt the
circuit board 90 degrees to the right
Carefully remove the antenna cable from the circuit board – do
not use excessive force.
Slide the SIM card into the SIM card holder. The final position is
drawn onto the circuit board.
Re-attach the antenna cable and
fasten the circuit board using
the four outer screws.
4. Power up the unit Visually inspect the battery and cable condition to ensure no
damage. If in doubt do not use. Place the battery into the clip
and connect the power connector.
5. Program the unit The Metron can only be programmed by sending text messages.
The Metron config is not compatible with this version of the
Metron.
You can only send one command at a time.
Each command must be sent via text message to the correct
number for the Metron.
Please go to the Programming Specification section to
define the text messages you want to send to the Metron
and send from your mobile phone.
On the Metron - Press the (ENTER) button to ‘wake up’ the
Metron, go to ‘System’ and then go to ‘Get Config’. The display
should read ‘Waiting for Messages..’ after it has established
You must wait until each of the text messages sent has been
received and successfully interpreted – It will display ‘Success’
or ‘Invalid Command’ in each case.
When all the messages have been received, press and hold the
central button until you are returned to the main menu. If you
leave the unit unattended for 20 minutes it will go into sleep
mode.
