Cristec Voltage Guard - 70 Quick Start Manual

www.cristec.fr
The best solution to protect your battery
against :
Deep discharge
Overvoltage
Overload

Presentation

The voltage guard protects your battery in order
to increase its duration life.
It provides a constant low voltage, overvoltage
and overload protection.
When you battery reaches the pre-set low
voltage the voltage guard will disconnect
automatically the DC consumers.
DC consumers will be switched on again
automatically when battery voltage increases and
when defined threshold is reached.
The system will operate the same say way for
over-voltage.
Low voltage threshold can be selected from
external DIP switches. The over-voltage value is
fixed.
The system can be used as manual main switch.
The output is turned off when the switch is
closed.
In this mode the voltage guard will only operate
as battery low voltage protector.
The voltage guard has an integrated buzzer and
LED to monitor its operating state.
It is compliant with all Lead battery types : wet,
sealed, gel, AGM, Calcium, etc.

Installation

The voltage guard has to be installed on a solid
surface and in a dry and well ventilated place.
Never use the voltage guard where there is any
danger of explosive gas.
Voltage Guard – 70

Connection and possible additional protections

shall be made in compliance with local and
concerned application regulations.
Appropriate terminal shall be used to avoid bad
connection.
Fasten the bolts tightly but not over tighten
them.
Use wiring with the appropriate diameter.
Make sure the battery is fused with the right
value. This fuse can be 70A maximum, limited by
the voltage guard.
Connect the voltage guard according the wiring
diagram as shown below.
Standard :
Connect the terminal to the ground of the
installation.
Connect the terminal to the positive pole of
the battery.
Connect the terminal to the consumers +
terminal.
Optional :
Connect the terminal to a switch to ground to
use main switch function.
Connect the ! terminal to an external alarm.
This signal switches to ground in case of a low
battery (maximum alarm load 1A).
Connect the terminals to an external three
colour LED if desired.