Aqualert
Low Water Sensors
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Over 75 % of engine damage is caused by water loss !!


Aqualert Low Water Sensors are sold throughout Austraila at Repco Auto Parts, National Parts, Ashdowns, Natrad Radiator Dealers, Bursons Spare Parts, Mike Vine Turbo, Gympie Radiators, your local radiator workshop, local mechanic and auto parts store in each city and large regional centre. They are also fast becoming available in most country towns around Australia.

Aqualert Low Water Sensors are designed for use in any water cooled engine. Immediately there is a water loss the Aqualert unit will alarm to warn the driver/operator. If being used on a remote engine Aqualert will automatically shut the engine down immediately a water loss occurs.

The Aqualert Low Water Sensor will continue to alarm until the engine has been turned off or the water level problem rectified. If the engine is turned off and the safe water level not restored, the Aqualert unit will begin to alarm as soon as the engine is restarted.

Aqualert Low Water Sensors come standard with a 3 amp positive output. This can be used to power up further external warning devices, such as horns, lights etc.


Aqualert MK1B



This is our standard Low Water Warning device. It has been designed for use in Motor cars and vehicles doing light work. Its small size makes it easily installed under the dash of a vehicle. This unit is sold throughout Australia at most motor spare parts and accessory stores. It can also be found at your local Radiator repairer or mechanical workshop.

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Aqualert MK2



Aqualert is also supplied in an Industrial version. This is in a black square box with mounting lugs, it is water resistant and the circuit is encased in resin to protect it from vibration as would occur in road rollers, graders heavy machinery etc. It is supplied with a 115 db alarm which suits tractor, trucks, heavy equipment ect.

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12 or 24 volt

All Aqualert Low Water & Fluid Control Sensors are available in 12 and 24 volt models. Each unit is hand tested before it is packed and is also labelled with asitcker indicating the units correct voltage. The necessary terminal and fittings are also supplied along with comprehensive installation instructions and a wiring diagram.


Probe Assemblies

Each Aqualert Mk1b unit is supplied with a standard Neoprene Probe. The Mk1b units are fitted into motor cars and light load vehicles.


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The Industrial Probe is supplied with all Aqualert Mk2 units desingned for heavy work. For example, mining vehicles, 4x4's farm machinery, stationery engines ect. It has been designed for heavy duty applications and can be easily removed for ease of cleaning. The Industrial Probe is made from a compound called Teflon.
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Aqualert Low Water Sensors are particularly popular in vehicles where the engine is situated under the seat. Many companies have found that where no easy access is available to check the radiator, the engine can suffer irreparable damage before it is realised that there has been a water loss.



Aqualert Mk1b is fitted with an 85 db buzzer and a warning output to drive a horn, lights, shutdowns etc. This is the brown wire in the loom which goes 12 or 24 volts positive when a low water situation is detected. Aqualert Mk2 is fitted with a 115db buzzer and the same waring output to drive Lights, horns etc.

Aqualert has a built in 2 second delay, on activation this allows for the water in the radiator to surge in the top tank without Aqualert alarming prematurely. If Aqualert has not detected water on the probe after the 2 second delay the alarm will sound and auxiliary if used will be activated.

The alarm can only be stopped in two ways by turning the engine off or refilling the radiator.

Aqualert will alarm on any loss of water, ie; slow leaks or fast water dumping, heater hose burst, faulty radiator clamps, faulty water pump, leaking head gasket, damaged radiator etc.

Aqualert is also available for rear engine buses, & center mounted engines.

Aqualert in this installation should be mounted in the engine bay and not in the cabin. The probe wire (orange) should be kept as short as possible and the brown wire to be run to the drivers compartment to run the warning devices, light, alarms etc.

In Aqualert this brown wire supplies 12 or 24 volts positive voltage at 3 amps.

Aqualert for this application is supplied without warning alarm we can supply an 85 or 115 db alarm on request. Mounting of the probe is most important. The probe should be fitted to the radiator tank at a level close to the top of the core. Definitely not touching the radiator core or any metal.

The only thing touching the probe should be water


In large top tanks we recommend that the probe be fitted horizontally at the filler cap end of the radiator. Or fit our Industrial Probe from the top of the radiator. This can be achieved without radiator removal.

Important: Keep the probe as far away from the water pump return hose as possible. In cross flow radiators mount the probe just under the pressure cap on the side of the tank.


The probe supplied with Aqualert is the only probe that should be used with our Low Water Sensors. The use of another type of Probe may not allow Aqualert to operate properly and it will also void the warranty. Aqualert is available in 12 or 24 volt models and should be ordered in this way.


How to fit the probe


The probe can be fitted in two ways;



1/ drill a 10mm hole in the radiator de-burr hole inside and out, this is very important. Insert the probe complete into the 10mm and tighten. Do not over tighten..

Note: If the probe is over tightened damage may occur to the Neoprene Bush and Aqualert will not operate properly.

To avoid water leaking up the screw of the probe, we suggest a light coating of stag or silicon to the top of the probe, just under the blue washer. Unscrew neoprene bush (black) and lightly coat the thread just under the washer (not all over the probe)

2/ Insert brass bush into hole in and solder into radiator. In our opinion this is the preferred fitting method. Option one is also very good for the home handyman, if installed correctly. To drill the 10mm hole this must be done carefully and slowly.



Aqualert can also be installed in vehicles that have plastic top and bottom tanks. A 10mm hole can be safely drilled the metal core of the radiator must be earthed to the body frame, or battery earth.

Plastic Radiators


For use in plastic radiators the Aqualert Probe needs to be fitted on a flat surface not a curved or rounded surface. Care needs to be taken when drilling Plastic Radiators as over time the plastic can become very brittle. We suggest starting with a small hole and building up to the correct size. The thickness of the material used to manufacturer plastic radiators varies greatly between different vehicles and manufacturers.

Please be aware that the Aqualert probes need to be able to seal correctly.

If the wall of the plastic tank is too thin it is possible that the Aqualert probe will not be able to seal itself correctly and damage to the Aqualert probes may occur. If this happens the Aqualert units will not operate as they are designed too. If the plastic in the tank appears to be too thin we suggest finding an alternative place that is more solid and stable to install the Aqualert probe.

How does it work?


Aqualert electronically reads the resistance of the impurities in the water. such as, minerals, aluminium particles rust scale, metal particles or impurities. It sends a signal ac-dc mix through the water to earth.

While aqualert can read and monitor these impurities it remains dormant and will not alarm. As soon as the water falls off the probe for any reason and after the 2 second built in delay, the alarm will activate.

Aqualert if mounted in a header tank that is plastic, must be fitted with two probes. One probe to read the water level and the other probe to supply the earth reference. This probe must be earthed to the body frame, and battery earth. All radiators must be earthed to the chassis or battery earth.

It is the owner-user responsibility to keep the cooling system and probe in good clean condition. The cooling system must be cleaned and flushed at least once a year to avoid rust, scale, build up on the probe. We do not recommend the use of sticky oily coolants or inhibitors as these can build up on the probe and effect Aqualert's operation.

Aqualert is designed to assist in the prevention of engine damage caused by water loss. It is not a guarantee.



Lights ON


Lights On Automatic Electronic Headlight Controller



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Lights On is a unit we developed as part of a road safety initiative by the New South Wales Police Force Northern Division in 1998. It has been proven in studies conducted around the world, that driving in daylight hours with the headlights on is a road safety strategy that works.

Lights On automatically turns the headlights on once the engine has started and the battery has reach it's optimum charging level. Lights On has been used by the Roads and Traffic Authority, by large companies and local shire councils since 1987. Lights on is also used by companies promoting safe drivng policies throughout their vehicle fleets.

Lights On units are also supplied to mining companies for use in vehicles doing underground work. Lights can be supplied with standard wiring looms for motor cars and light work vehicles and also with full weather proof plugs for 4x4 and mining vehicles.

How Does Lights On work?

Lights On will not automatically turn the low beam headlights on until the engine has started and the battery has reached its maximum charge level of approximately 13.8 volts.
Depending on the state of both the battery and alternator in the vehicle, the headlights may come on as quickly as a second or two or it could be thirty seconds or so before they automatically come on.
The headlights will not come on until the battery has reached it’s optimum level.

Lights On needs no driver input whatsoever.

Lights On turn on automatically when the engine is running and turns off automatically when the engine is stopped.
If the headlight switch is manually turned on this will also over ride the Lights On unit.





For more information on Aqualert or Lights ON
please email


Aqualert

Aqualert Australia Pty. Ltd.

P.O. Box 4250 Loganholme. QLD. 4129
Australia.
Phone: 61 7 55475677 Fax: 61 7 55475633

Internet: www. aqualert.com Email: info@aqualert.com
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Copyright 2006
The words Aqualert & Lights On and the logo of man with car are registered Trade Marks of Aqualert Australia Pty. Ltd.