Home

Euro Manufacturing and Marketing Ltd

UK Manufacturers of

Battery Management Systems,

DC-DC Voltage Converters and DC-DC Battery Chargers


This is a very easy to fit Unit that monitors the Vehicle’s Electrics and alerts the Driver via an Audible / Visual Device that the Battery is becoming exhausted or that the Charging System is becoming faulty.

This Unit is sold with separate Relay / Solenoid to suit the application.

OPERATION:-

The unit monitors the voltage of a 6 cell, 12 volt battery and can control a solenoid and a warning lamp/sounder.


The “low battery” voltage is factory set at 11.1V

The “reset” voltage is 13.5V.


If the battery voltage is above the “low battery” voltage, the solenoid is energised and the warning lamp/sounder output is off.


If the battery voltage drops below the “low battery” voltage, the solenoid is de-energised and the warning lamp/sounder output gives an interrupted output. In this state the current drawn by the unit is < 1mA plus the current drawn by the warning lamp/sounder.


At this point:-

OR

When the “ignition switch” is disconnected, one of two things can happen

  1. If the battery voltage has risen above the “low battery” voltage, the solenoid will remain energised.
  2. If the battery voltage is below the “low battery” voltage, there will be a delay of up to 30 seconds before the solenoid is de-energised and the warning lamp/sounder output gives an interrupted output.


Without using either the “override” or “ignition switch” pins, when the battery voltage rises above the “reset” voltage the solenoid is energised and the warning lamp/sounder output is switched off.



CLICK HERE TO DOWNLOAD THE PDF SPECIFICATION SHEET

E715 12V BATTERY MONITOR


Specification

Notes

1: Pins 6 & 7 are internally connected

2. 1A maximum Output based on Unit being wired as per Figure 1


RECOMMENDED WIRING OPTION (FIGURE 1):-

Below is the recommended wiring diagram to reduce to a minimum the voltage drops in the wiring between the battery and the monitor.


PART NO

E715

Supply Voltage (Vcc)

9.0V to 15V

Quiescent Supply Current

<1mA

Battery Low (disconnect) Voltage

11.1V

Battery Reconnect Voltage

13.5V

Ignition Switch Pin 1

Input Active High, On >2V, Off < 0.8V or Open Circuit

Solenoid Connection Pin 2

Open Collector Switching to Ground 0V, 1A Maximum

Warning Connection Pin 3

Open Collector, Switching to Ground 0V, 1A Maximum

Battery -VE (Ground) Pin 4

Negative Power and Sense input

Override Switch Pin 5

Input Active High, On >6V, Off < 4V or Open Circuit

Solenoid Connection Pin 6          

(see note 1)

Positive Output (Vcc -0.8V) 1A Maximum (see note 2)

Warning Connection Pin 7

(see note 1)

Positive Output (Vcc -0.8V) 1A Maximum (see note 2)

Battery +VE (Vcc) Pin 8

Positive Power and Sense Input

DIMENSIONS

94mm X 61mm X 36mm

WEIGHT

70g

FIXING

1 POINT FIXING (5mm HOLE)

ALTERNATIVE WIRING OPTION (FIGURE 2):