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GuardMagic DAFS
Adapter (fuel level sensor
reader) for resistive type floating fuel level sensor
with analog output. Dual output: analog and digital
(EIA-485)
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1. ABOUT
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GuardMagic
DAFS is intended for connection car, light vehicle regular floating fuel
level sensor to GPS-GSM/GPRS module.
GuardMagic
DAFS read the analog signal from the vehicle regular resistive type floating
fuel level sensor, valuate, processing input signal and converts it into:
- digital form: EIA-485 communication interface;
- stable noise and pulse free analog voltage output 0-8,5 V range.
GuardMagic DAFS allows by very economical way embed fuel monitoring
function for cars, VANs, LCV in vehicle monitoring system.
GuardMagic DAFS could be used to provide fuel monitoring function on
passenger cars, “JEEPs”,VANs,“pick-up” or light trucks (Light Commercial
Vehicles) on which the use of professional fuel level sensors is not reasonable
due to technical or economic reason.
Advantages:
- Wide voltage
input range;
- Valuation of the input signal;
- Input signal
processing;
- Internal programming filter;
- Programming the operating parameters;
- Dual output: analog and digital
- High resolution.
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2. MAIN
TECHNICAL DATA
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GENERAL DATA |
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Power voltage (DC): |
9… 14 V ; GND minus |
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Input signal from fuel
level sensor |
0… 12 V |
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Output signal |
Analog
Digital
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Output voltage range
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0 … 8,5V
0… 4,2V
0 …2,1 V
User programmable
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Digital output
(communication interface) |
EIA-485
semiduplex
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FUNCTIONALITY
SPECIFICATION |
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Input signal valuation
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YES |
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Operation mode
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stand alone mode
(master)
net mode (slave)
programming mode
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Net address in 485 bus |
01 |
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Processing input
signal
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YES |
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Internal data filter |
YES |
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Operation parameters
programming |
YES |
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Periodicity of data
sending in master mode (automatic mode) |
1 … 255 sec ; user
programmable |
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Filter programming |
YES |
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Service indicators |
YES (Power;
Ignition) |
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CONNECTION |
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Main power voltage
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main car power supply
(12 V) |
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GND |
car GND circuit |
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Ignition input
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to “Ignition”
electrical circuit (12V) |
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“Fuel Input” |
to car regular fuel
level sensor with analog output
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“Analog Fuel Output” |
to vehicle telematic
module (with analog fuel input) |
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485 bus |
to vehicle telematic
module (with 485 communication interface) |
3. APPLICATION
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Car, “Jeep”, VAN,
Mini Bus, Light Trucks, “Pick-Up”, LCV
4. CONNECTION
4.1 CONNECTION TO VEHICLE MODULE
WITH ANALOG “FUEL” INPUT
4.2 CONNECTION TO VEHICLE
MODULE WITH EIA-485 INTERFACE
Download
GuardMagic DAFS leaflet
5. DAFS FAQ
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