matson MA98411 Manuel utilisateur
Matson Programmable Voltage
Sensitive Relay
MA98411
Matson Programmable Voltage Sensitive Relay
The MPVSR is a ‘solid state’ electronic relay which is activated by sensing
the voltage of the circuits it is connected to. The voltages at which it will
either open or close are able to be programmed by the user, meaning this
product is suitable for a huge variety of applications. An example of this is
variable voltage output alternators increasingly found in modern vehicles.
This unit can be programmed to suit the characteristics of almost all 12
volt charging systems, and handle currents of up to 150amps continuous
(at 12VDC). The ‘cut in’ and ‘cut out’ activations are also able to be time
delayed to prevent VSR ‘chatter’, as well as being able to program an
alarm activation at a user dened voltage level.
The MPVSR is truly the next generation of charging control.
Primary Applications
Parallel Charging – Combining separate batteries or banks of batteries
together to charge from a single source or power.
Low Voltage Disconnect – Automatically switching off an electrical
load once the battery reaches a user dened voltage.
Automatic paralleling of batteries – Automatically combines two
battery banks for emergency power situations.
Automatic load switching – Using the control terminals, the MPVSR
can be a switch that will allow a load through it as long as the supply
voltage is between the user dened ranges.
A Heavy Duty Relay – For switching loads up to 150Amps.
FEATURES
• Solid state design means no moving parts to fail
• Fully user programmable to set voltage and time delays
• User programmable to set as either normally open or normally closed
• Isolated design means circuit cannot ‘backfeed’
• Isolation between control and load circuits
• LED indicators and display
• Alarm output for remote peace of mind
• Water and dust resistant enclosure
• Can be mounted in any orientation
• Over temperature protection
• Separate emergency over-ride connection
• 5 year warranty
WARNING
• Make sure you are familiar with the operation and installation
requirements of the MPVSR before installing or using.
• Please take into account the environmental limitations of the product.
The device is water and dust resistant, but is not designed to be
installed in wet or excessively dusty environments. These inuences
may shorten the life of the product and are not covered by warranty.
• Never leave the load terminals uncovered, there is a high risk of short
circuit, which may damage the device and it’s surroundings, including
people.
• The device should not be operated by children.
• Electricity can be dangerous! Short circuits can create sparks which
will ignite any present ammable substances. It is critical to ensure the
unit is installed in a well ventilated area AWAY FROM ANY SOURCES
OF FLAMMABLE SUBSTANCES. This includes batteries and fuel!
LAYOUT
INSTALLATION
Correct installation is critical for trouble free operation of the MPVSR.
Failure to properly install the unit may cause it to not work correctly, and
may also void its warranty. For best results please observe the following
instructions.
Choose a suitable location where the MPVSR can be mounted. Make
sure there is adequate ventilation to allow the unit to dissipate heat, and
try to install it in an area that is not too hot. Engine bays are not ideal, but
if adequately mounted it is an alternative. If mounting in an engine bay,
be sure to shield the unit from heat, dust and water. In other applications,
avoid moisture, dust and high vibration areas.
The unit can be mounted in any orientation (even upside down) but
must be on a hard at surface. Make sure you maintain at least 5cm of
clearance between the unit and any other objects. Utilise all four mounting
points, using appropriate fasteners for the application. Do not over tighten.
WIRING
It is very important to use the correct cable for your application. If the
cable gauge is too small you will suffer voltage drop, reduced current,
over heating of cabling and general poor performance, even failure. If
you have any doubts, consult the place of purchase for the cable, the
cable manufacturer, or an auto electrician. They will advise you on the
continuous load the cable can carry. This MUST match the load of your
application. Generally, when it comes to cable, bigger is better, and there
is no substitute for good quality cable and terminals.
Make sure the supply current or power is disconnected before connecting
anything to the MPVSR!
It is recommended that you install an inline fuse or circuit breaker as the
load protection. The fuse or circuit breaker should be rated to suit the
application, and should not exceed 150amps or the maximum rating of the
load cable being used.
Connect the required wiring to the control terminals, MAKING SURE TO
USE THE CORRECT POLARITY! Connecting the polarity incorrectly will
damage the unit and it will either need to be repaired or replaced. This is
not covered by warranty. Note; if you do not require an alarm or manual
over-ride switch, you do not need to connect anything to these terminals.
Note: It is very important to use appropriate terminations on your cables.
Poor connections can result in overheating, damaging the MPVSR. For
advice on termination please contact the place of purchase, an auto
electrician, or The Matson Group.
See below for termination examples.
CRIMP TERMINALS
FOR CONTROL
TERMINATION
COPPER LUG FOR
LOAD TERMINATION
INITIAL SET UP
Once the control wires are connected to the MPVSR and a power source,
the device is ready to be programmed to the user’s desired settings. It is
worth keeping in mind that you may not need to alter the factory settings,
which are listed in the table below.
12 Volt DC
Upper Voltage Limit 13.7 Volts
Upper Time Delay 5 Seconds
Lower Voltage Limit 12.8 Volts
Lower Time Delay 5 Seconds
Alarm Voltage Limit 12.0 Volts
Alarm Time Delay 10 Seconds
State of Contacts Normally Open (n - o)
CONTROL PANEL
To adjust the settings, observe the following
procedure:
NOTE; the buttons need to be pressed rmly in the centre or they will not
register. This is to avoid accidental changes to programming by bumping
the buttons.
Press the “SET” button once, the screen will show “OFF”
Press the “SET” button a second time. The screen will show the current
setting, relating to whichever LED is illuminated around the screen. The
rst to come up will be the UPPER LIMIT IN VOLTS. If this setting does
STATE
SET SELECTED
CONTROL ACTIONS
RESET
PUSH BUTTONS TO
SELECT CONTROL
ACTIONS
LCD DISPLAY
not need to be changed you can cycle through the parameters using the
“UP” and “DOWN” arrows.
To change a value:
When the value you want to change is displayed on the LED screen, press
the “SET” button and the value on the screen will begin to ash. While the
screen is ashing, use the “UP” and “DOWN” buttons to change the value.
Pressing “SET” again will stop the screen ashing and save the value.
Use the “UP” and “DOWN” buttons to cycle through to the next setting you
would like to change, and repeat the process.
Once you have set all the values to your requirements, take your hands off
the unit. After 10 seconds of inactivity the unit will switch off.
To reset the unit to the factory settings, follow the procedure above, cycle
through the settings until you reach “RESET”. Press the “SET” button
and see “NO” ashing. If you would like to reset the unit, use the “UP” or
“DOWN” button to cycle through to see “YES” and press “SET”. This will
restore the unit to factory settings and the screen will read “RST”.
COMMON APPLICATIONS
Dual Battery Charging
One of the major uses of the MPVSR is in dual battery charging
applications. The MPVSR is used to put the two batteries or banks of
batteries into parallel once the primary battery or bank reaches a certain
voltage. In a 4x4 application, where a secondary battery is used for
accessories such as lights, fridges or winches, it is important to protect the
vehicles starting battery from being attened by the accessories, making
sure you can always start the vehicle and drive away. The MPVSR,
installed between the starting battery and the secondary battery, can put
the batteries in parallel once the starting battery is charged, or reaches
a user dened voltage, allowing charging of both batteries to occur while
the vehicle is driving. If a load is placed on the batteries whilst in parallel,
and the starting battery drops to a pre-determined voltage, the MPVSR will
disconnect the two batteries, allowing the secondary battery to power the
accessories and protecting the starting battery.
The ability to determine the cut-in and cut-out voltages of the
MPVSR, specic to the vehicle, makes this product perfect for
modern vehicles with VARIABLE VOLTAGE OUTPUT ALTERNATORS.
Setting Guide: (note, this setup requires the MPVSR bet programmed
‘normally open’)
UPPER LIMIT IN VOLTS: This is the voltage that, when reached by
the starting/primary battery, the MPVSR will put the batteries in parallel
and charge both batteries. For vehicles with a VARIABLE VOLTAGE
ALTERNATOR, this will need to be set relatively low, at a point just below
the higher voltage output of the alternator. You will need to contact the
manufacturer or dealership to nd this information.
LOWER LIMIT IN VOLTS: This is the voltage level that, when reached by
the starting/primary battery, the MPVSR will disconnect the batteries from
the parallel circuit and isolate the starting/primary battery. This needs to be
set at a voltage level greater than the minimum voltage level required to
start the vehicle
UPPER DELAY IN SECS: This setting, in seconds, is the amount of delay
the MPVSR will wait to put the batteries in parallel, after the primary/
starting battery reaches the UPPER LIMIT IN VOLTS. This delay stops
VSR ‘chatter’, caused by the primary battery voltage dropping when the
batteries are put in parallel and the VSR continuously connecting and
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