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GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

Topic: GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

GuardMagic DAFS (DAFS1-m3; DAFS2-m3; DAFS3):  serie of adapters for resistive type floating fuel level sensor with analog output and RS-232 (or 485) communication interface.

Added support for "Pulse-Analog" fuel level sensors type.

GuardMagic DAFS1-m3 has two outputs: analog output and digital output (EIA-485 interface).
GuardMagic DAFS2-m3 has two outputs: analog output and digital output (RS-232 interface).

GuardMagic DAFS supports fuel level sensors with Analog and Pulse-Analog output.

About:
GuardMagic DAFS is intended for connection car, light vehicle, minibuses, LCV  resistive type floating fuel level sensor to GPS-GSM/GPRS module.

GuardMagic DAFS intended to read the analog or pulse-analog signal from the vehicle regular fuel level sensor, fix value of input signal, processing input signal and convert it into:
- digital form: RS-232 communication interface (DAFS2-m3; DAFS3);
- digital form:EIA-485 communication interface (DAFS1-m3);
- stable noise and pulse free analog output  voltage (0-8,5 V range).

GuardMagic DAFS could be use to provide fuel monitoring function on passenger cars, LCV, “JEEPs”, “pick-up” or light trucks on which the use of additional  fuel level sensors is not reasonable due to technical (same as: the problem with sensor mounting), or economic reasons.

Advantages:
- Dual input signal: analog and pulse-analog
- Wide voltage range of input signal
- Valuation of the input signal
- Internal digital filter (user setting)
- Programming the operating parameters
- Dual output: analog and digital
- High resolution
- Over polarity and over voltage protection

(DAFS3 = also support 24 V power)

Download  GuardMagic DAFS ( fuel level sensor adapter) presentation:
http://guardmagic.com/01-engl/91e-downl … dapter.pdf

Download GuardMagic DAFS2-m3 leaflet:
http://guardmagic.com/01-engl/91e-downl … eaflet.pdf

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
Оборудование для мониторинга транспорта и стационарных обьектов. Датчики уровня топлива.
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GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

Re: GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

What is your advantage of your sensor in comparison to other brands like Omnicomm, Technoton, Soji?

Vietnam Leading Capacitive Fuel Level Sensor
http://sojifuelsensor.com/
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GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

Re: GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

alex93.soji wrote:

What is your advantage of your sensor in comparison to other brands like Omnicomm, Technoton, Soji?

Omnicomm, Technoton, Soji  dont produce "fuel sensor adapter" ...
Base of it is not possible to make any comprasion

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
Оборудование для мониторинга транспорта и стационарных обьектов. Датчики уровня топлива.
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GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

(edited by GuardMagic 17/08/2021 02:56:42)

Re: GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

GuardMagic DAFS ,- new leaflet

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
Оборудование для мониторинга транспорта и стационарных обьектов. Датчики уровня топлива.
5

GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

Re: GuardMagic DAFS - Adapter for vehicled regular fuel level sensor

All answers about DAFS

1) .. why mainly for car, VAN, LCV etc. ?


To install in car tank additional fuel level sensor is hard and expencive.

To install additional fuel level sensor in car willl be need:

- remove from car original car fuel tank (it is not easy);

- secure the fuel tank (tank steamed) - in tank was petrol!
(or fill in tank water and alll further mechanical operation only with water in tank);

- find the place for new fuel level sensor - it is very difficult. Car fuel tank has very complex form.
And very often is not possible to find correct place for installation new fuel level sensor.

- make holes for new fuel level sensor;

- mount fuel level sensor;
(remove from car fuel tank water);

- install fuel tank in car.



2) Why DAFS ?



1 At first, about regular car fuel level sensor

- Regular fuel level sensor is direcrly connected to car electrical power.
Car electrical power fluctuate dpending of engine RPM and it mean that output voltage of fuel level sensor also will be fluctuate

- When in car ignition key will be in OFF positionand car regular fuel level sensor will not be powering;

- working output voltage of car regular fuel level sensor is very narrow (small dynamic range),
For example, it can be about from 3 Volts and up to 6 volts

- ouput voltage from car regular fuel level sensor is not stable (not filtering);

- over 80% of car , regualr fuel level sensor has an analog output.

2 What do DAFS (in brief)

For example (only):
1). Car power voltage is 12 Volts
2). Minimal normal car power voltage is 11 Volts and maximum car voltage is 14 V (maximum engine RPM);
3) from car regular fuel level sensor signal: from 3 volt and up to 6 volts (operative voltage delta is only 3 Volts);
4). When Ignition key is Off - output signal will be 10 Volts



3) What do DAFS inside:?


- normalizes input sigmal (will not be fluctiation depending of primery car voltage);

- fix input signal to vehicle GND circuit (by other words now operartion signal will be from 0 and up to 3 Volts for example);

- expands input signal (now it will be from 0 and up to 9 Volts);

- processing (filtering) input signal;

- store the code of input signal in internal memory and when ignition key will be in Off position DAFS will send to telamitic module the latest valid signal.

- conver the signal to digital form - this allow to connect vehicle telematic moduel with digital interface (RS-232 or RS485)

4) What DAFS do?

DAFS brief description

     GuardMagic DAFS receive voltage level from vehicle regular fuel level sensor and fix input signal
to vehicle GND circuit.
      This input signal converted in to digital form (digital code) and DAFS2 main processor carry out
valuation and filtration this signal.
      This processing code is storing in main processor memory.
      Further this code of fuel level transmitting to vehicle telematic module in digital form by RS-232
communication interface or/and converted in to analog form for transmitting to vehicle telematic
module with analog input.
      Based, that when the ignition switch is in OFF position, the data from vehicle regular fuel level
sensor is not valid, main processor insert the last valid data to output signal (output code or output
voltage).



  5 ) What else about DAFS ?


4.1 DAFS2-m3 ( 3 ) support vehicle regular fuel level sensors with:
- analog output;
- pulse-analog output (pulse powering fuel level sensor)

4.2 DAFS2-m3  ( 3 ) has:
- analog output;
- digital output: RS-232.

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
Оборудование для мониторинга транспорта и стационарных обьектов. Датчики уровня топлива.