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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 17/05/2015 03:05:40)

Topic: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS2-m3: Third generation adapter for resistive type floating fuel level sensor with analog output and RS-232 communication interface.

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

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

GuardMagic DAFS2-m3 supports fuel level sensors with Analog and Pulse-Analog output.

About:
GuardMagic DAFS2-m3 is intended for connection car, light vehicle, minibuses, LCV  resistive type floating fuel level sensor to GPS-GSM/GPRS module.

GuardMagic DAFS2-m3 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;
- stable noise and pulse free analog output  voltage (0-8,5 V range).

GuardMagic DAFS2-m3 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

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
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

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

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

1 ..  why 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 will 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.

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www.tankercontrol.com;
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

2) Why DAFS ?

2.1 At first, about regular car fuel level sensor

- Regular fuel level sensor is direcrly connected to car electrical power.
Car electrical power fluctuate depending of engine RPM and voltage load 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 90% of car , regualr fuel level sensor has an analog output.

2.2 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

www.guardmagic.com ;
www.tankercontrol.com;
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5

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

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);

- 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)

from DAFS user manual (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).

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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6

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Nice Product !

so in order to install it,  we need to remove original wiring from factory sender?,  (losing panel info)

can you share recommended installation method?

thank you

--
Spread the AVL- World
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 19/08/2015 16:45:52)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

small_gprs wrote:

so in order to install it,  we need to remove original wiring from factory sender?,

No.
Device connected in parallel of "original wiring" from factory sender.
Not lose any "panel info"

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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8

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Thanks, so i think that DAFS apply power (bias) to the sender when Ignition goes off, right?

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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 19/08/2015 18:14:46)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

small_gprs wrote:

i think that DAFS apply power (bias) to the sender when Ignition goes off, right?

DAFS store in its memory the latest valid data from the sender.
And when ignition is OFF, DAFS send this latest valid data to telematic module.

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
Оборудование для мониторинга транспорта и стационарных обьектов. Датчики уровня топлива.
10

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

great, Thanks

--
Spread the AVL- World
11

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

If an ultrasonic sensor is used it is attached to the outside of the tank so no need to cut an opening for a probe type sensor. Also as the sensor is going into zone 0/1 it needs to be intrinsicly safe and explosion proof.

Phoenix Solusi
Mobile Visible Secure
Specialists in data acquisition and analysis for mobile and fixed assets. Integration in to content management systems is a specialty we have.
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 24/09/2015 13:06:16)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

JohnG wrote:

If an ultrasonic sensor is used it is attached to the outside of the tank

1) about what type of ultrasonic sendor you are talking?

2) car regular resistive fuel level sensors is  not intrinsicly safe and explosion proof.

3_ .. and I think that: car regular resistive fuel level sensor is about 50 time cheaper when Ultrasonic sensor

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13

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 22/12/2016 18:05:00)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS presentation =

http://guardmagic.com/01-engl/91e-downl … ation).pdf

And GuardMagic DAFS2-m3 - leaflet

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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14

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS2-m3.
Latest leaflet

www.guardmagic.com ;
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15

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 28/03/2017 01:02:25)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS2-m3.
Adapter leaflet

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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16

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS2-m3.
Adapter leaflet: in passanger cars

www.guardmagic.com ;
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GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

(edited by GuardMagic 03/01/2018 18:01:35)

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

GuardMagic DAFS2-m3.
Adapter leaflet: in LCV

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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18

GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Re: GuardMagic DAFS2-m3, - Adapter for vehicled fuel level sensor

Now GuardMagic DAFS (fuel level sensor adapter) has a new version that support 24V DC

www.guardmagic.com ;
www.tankercontrol.com;
www.twitter.com/guard_magic
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