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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 defined 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 defined 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 defined ranges.

A Heavy Duty Relay 

– For switching loads up to 150Amps.

Summary of Contents for MA98411

Page 1: ...Matson Programmable Voltage Sensitive Relay MA98411...

Page 2: ...ions are also able to be time delayed to prevent VSR chatter as well as being able to program an alarm activation at a user defined voltage level The MPVSR is truly the next generation of charging con...

Page 3: ...ts 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 ex...

Page 4: ...LAYOUT...

Page 5: ...ble 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 t...

Page 6: ...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...

Page 7: ...ttings 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 Vo...

Page 8: ...o 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 illumin...

Page 9: ...e 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...

Page 10: ...ut voltages of the MPVSR specific 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...

Page 11: ...uts out and isolates the primary starting battery A delay is useful here because the voltage of the starting battery may drop below this point for a few seconds when starting the vehicle but return to...

Page 12: ...s been charged back to a safe voltage to start the vehicle It can be as little as 0 1V above the LOWER LIMIT IN VOLTS LOWER LIMIT IN VOLTS This is the voltage level where you want to disconnect the lo...

Page 13: ...LOW VOLTAGE DISCONNECT WIRING EXAMPLE 12 Volt Primary Battery Sensing BUZZER LOAD 150A MAX MUTE SWITCH OPTIONAL REMOTE OVERRIDE SWITCH SENSE WIRE...

Page 14: ...the batteries are in parallel Setting Guide note this setup requires the MPVSR bet programmed normally closed UPPER LIMIT IN VOLTS This is the setting where the batteries will be disconnected from eac...

Page 15: ...AUTOMATIC PARALLELING WIRING EXAMPLE SENSE WIRE 12 Volt Primary Battery Sensing 12 Volt Secondary Battery Charging BUZZER MUTE SWITCH OPTIONAL...

Page 16: ...this setup requires the MPVSR bet programmed normally open UPPER LIMIT IN VOLTS This is the setting where the voltage would be re connected to the light to allow it to operate as required again In thi...

Page 17: ...AUTOMATIC LOAD SWITCHING WIRING EXAMPLE LOAD 150A MAX FLOAT SWITCH...

Page 18: ...DC The control device is wired in series with the control wires and activated as required The voltage settings should be programmed out of any range that would affect operation Also the relay can be s...

Page 19: ...o IP66 Electrical Protection Thermal overload shutdown Standby Current Draw 10mA at 13 5V DC and 23mA at 27 0V DC Standby Current Draw 35mA at 13 5V DC and 55mA at 27 0V DC Operating Temperature Ideal...

Page 20: ...DIMENSIONS H 65mm L 135mm W 85mm...

Page 21: ...y phoning Matson on the above number provide satisfactory proof of purchase and send the faulty item to the address supplied above Exclusions from Warranty This warranty does not apply to products whe...

Page 22: ...third party or any special indirect or consequential loss or damage of any nature whatsoever caused by Matson s failure in complying with its obligations MATSON IS NOT RESPONSIBLE FOR DAMAGE THAT OCCU...

Page 23: ...ased From Date Purchased Product Purchased Model No This product is supplied with a 5 Year Warranty from date of purchase Please Note Should you experience any warranty related issues with this charge...

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