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.

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).

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

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.

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.

GuardMagic DAFS presentation =

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

And GuardMagic DAFS2-m3 - leaflet

GuardMagic DAFS2-m3.
Adapter leaflet

GuardMagic DAFS2-m3.
Adapter leaflet: in LCV