They are a product which have been designed to meet all
the needs and requirements of a dual battery electrical
system in the modern 4WD vehicle.
The
Systems Intelligent Isolators
features an electronic circuit controller which has auxiliary
load sensing to protect the alternator from overloading
plus inbuilt surge protection to prevent damage to other
electronic equipment in the vehicle.
Electronically
the 2 units are identical, however they have different contact
set current ratings. The larger unit
is fully encapsulated and is capable of handling currents
in excess of 400 amps - ideal for winching and jump
starting applications. The smaller
unit is sealed in a cast alluminium housing and is rated
to 180amps. This unit is ideal for all applications
where winching or jump starting is not required. Great for
fridges. 180amps is almost twice the alternator output of
most vehicles. Both models have recently
been upgraded so the switch from 'Dual' to 'Isolated'
mode now takes place at a lower voltage. This has the advantage
of extending the time available to operate auxillay accessories
(ie fridge) before recharge is required.
The
smaller unit has an optional in-cabin
remote display.
The
Intelligent Isolator is fully encapsulated and has a heavy
duty contact switching capacity with Jump Start capability
from the dashboard. It is also one of the simplest of all
Isolators to install
- large unit installation,
small unit installation.
| List
of main features |
 |
| Electronic
circuit design to give intelligent operation
|
| Voltage
and load sensing design |
| Alternator
overload protection from auxiliary load. |
| Timing
circuitry to prevent charging oscillation |
| Simple
three terminal connection and mounting design |
| Voltage
spike and surge protection inbuilt |
| Impermeable
encapsulation for dust and water resistance
|
| Jump
start capability from dashboard switch |
| High
current capability |
An
Isolator is required to enable the charging of a second
'auxiliary battery' but at the same time isolate it from
the main battery system in order to protect the main battery
from discharging into the same electrical circuit - usually
the auxiliary battery is connected to a fridge, winch or
caravan electrical system.
The 4WD Systems Intelligent Isolator,
due to its electronic voltage and load sensing design, overcomes
the deficiencies that allow other isolators to discharge
the main battery.
The Isolator uses superior voltage
sensing to determine charging rates. It cannot be
'tricked' into discharging a main battery into an auxiliary
battery (or visa versa) in the event of a faulty alternator,
faulty charging system, poor connection or just by leaving
the ignition key switched on. These situations will usually
result in a standard isolator assuming that it can charge
both batteries but in reality will allow both batteries
to discharge into each other or the vehicle's electrical
system.
The Intelligent Isolator gives charging
priority to the main battery at all times and only
allows the charging of the auxiliary battery after the main
battery is fully charged.
By using the optional sensor terminal and the circuitry
already built into the Intelligent Isolator you can protect
alternators fitted to all late model vehicles from overload
and subsequent rectifier damage when operating with winches
or other situations involving heavy duty current drain.
One of the by products of any isolator system is voltage
spikes, caused by the switching of high currents. The Intelligent
Isolator has an inbuilt surge protection
device to protect your vehicle, its computer or any other
radio or electronic equipment from these spikes. Most isolators
do not have this inbuilt protection.
The larger Intelligent Isolator has Jump
Starting capability due to the heavy
duty current capability of the Isolator and some additional
circuitry allowing a temporary bypass of the Isolation circuit.
Wiring up the Intelligent Isolator is easy with only three
simple connections necessary, plus the options for Jump
Start and Alternator Protection if required.
For
detailed fitting instructions - small unit,
or the larger unit.
The Intelligent Isolator is impermeably encapsulated and
is water, dust and battery acid resistant,
thus ensuring a long life and the best possible option in
reliability and durability.
The
complete dual battery system manufactured by 4WD Systems:
|
Dual
battery cradle
|
Steel
construction, cadmium passivate inc fitting kit, clamp.
Powder coated. |
| Heavy
duty battery |
N70ZZ
15 or 17 plate battery (most vehicles) |
| HD
Wiring Kit |
Heavy
duty power cables, swaged terminals and auxiliary |
| Jump
start wiring kit |
Switch
and wiring |
| Installation |
General
wiring, Jump start switch & Aux Power points |
|
