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Important Information

Troubleshooting RMA

General Instructions

Troubleshooting RMA

General Information

Datasheet

 

Voltage

9..30 VDC

Standby power consumption

< 5 mA

Fuse protection

2 A

Fuel sensor ohm value

0..1 kΩ

Output power

1 A max. (Alarm  = Ground)

ESD-protection (E/A)

8 kV

IEC61000-4-2 Level 4

Operating temperature

-30...+60 °C

conductor cross-section

0,5..1,5 mm²

Isolation

10 mm

Protection class

IP 20 (EN 60529)

Dimensions (LxBxH)

40 x 40 x 22 mm

 Compatibility

  • In case of uncertainty or errors always consult the original equipment manufacturer.
  • In order to deliver the right module, we ask the customer to provide the vehicle type (modell, construction year) prior to the delivery.
  • If the manufacturer has no data for this modell, it is necessary to communicate the fuel tank size (in litres) and to measure the ohm value when the tank is full and the ohm value when the tank is empty.
  • If you don’t provide this data, we deliver a device with standard settings which might be wrong.
  • NO proper functioning with vehicles with 2 tanks or if the sensors don’t deliver OHM values.

Technical Data

STG-6: normal measurement                                     

   0 Ohm = Tank empty / > 80 Ohm = Tank full     

STG-3: inverted measurement

    0 Ohm = Tank full / > 80 Ohm = Tank empty

Fuel monitoring for 12/24V vehicles with 0..1kΩ - fuel sensors

Only is active when ignition is OFF


How it works;

The modulles STG-3 and STG-will be activated when ignition is OFF and measure the fuel level after a while. If the fuel level decreases, alarm is triggered to the tracking device

Ohm values

You can measure the ohm value with an Om-Meter. Connect it to the fuel sensor. If the floater is down (empty), you get the ohm value for the empty tank. If the floater is up (full), you get the ohm value for the full tank.

 

The list below is subject to change without prior notice by the manufacturer.

Fuel sensor

Ohm value full

Ohm value empty

STG-Version

Ltr. /

Alarm

Mercedes Actros, Axor und Atego

1000 Ohm

3 Ohm

STG-6/15

 

DB-Fahrzeuge vor Bj. 7/2007

180 Ohm

3 Ohm

STG-6/4

 

IVECO Eurostar, Eurotech, Trukker, Tector und Turbostar

20 Ohm

311 Ohm

STG-3/7

 

IVECO Eurocargo

3 Ohm

300 Ohm

STG-3/7

 

IVECO Daily

20 Ohm

300 Ohm

STG-3/7

 

Tauchrohrgeber TRG/HAT (IVECO)

20 Ohm

311 Ohm

STG-3/7

 

Tauchrohrgeber TRG/HAT (Volvo und Renault)

33 Ohm

240 Ohm

STG-3/4

 

Volvo

33 Ohm

240 Ohm

STG-3/4

 

DAF XF, CF und LF

500 Ohm

10 Ohm

STG-6/9

 

Scania 3er-, 4er- und R-Reihe

180 Ohm

10 Ohm

STG-6/4

 

Scania HPI-2 Track

180 Ohm

3 Ohm

STG-6/4

 

Renault AE, Premium und Midliner

33 Ohm

240 Ohm

STG-3/4

 

MAN TGX, TGS, TGA, TGL, L2000, F2000 und F90

8,2 Ohm

73 Ohm

STG-3/3

 

Doosan Kettenbagger DX 225 LC Abstufung in 1/10

320 Ohm

250 Ohm

STG-6/4

 

Connection Diagram

 

 

Connection

Description

PIN 1

+9..30 VDC (permanent power, terminal 30), protection max. 2A fuse

PIN 2

+9..30 VDC (ignition, terminal 15)

PIN 3

Ground (terminal 31)

PIN 4

Alarm input (closed to ground Masse): close to ground!

PIN 5

Fuel gauge (- Minus)

PIN 6

Fuel sensor (- Minus)

PIN 7

Fuel gauge  (+ Plus)

PIN 8

Fuel sensor (+ Plus)

PIN 9

Alarm/GSM connect with negative trigger input of tracking device ( in case of alert ground is activated)

Make sure to use a negative input or to contact the supplier!

 

Installation instructions

  1. Install it at a safe place (protected from water or heat)
  2. Use a 2 Ampere fuse.
  3. Ohm values on the module must be similiar to the values on the fuel sensor

 

Final tests for correct delivery

see Installation Tests and Reporting

Make sure that the alarms are working prior to handing over the vehicle to the customer:

  • If the ignition is OFF and the fuel tank is depleted, the alert must come within 2-5 minutes (PIN 9 output must show ground for 10 seconds).
  • If PIN9 is activated (ground signal), then the GPS Fleet Software must show an alert or input change on one of the digital inputs:

Troubleshooting

see Troubleshooting RMA

 

Please check,

  • If the ohm values increase when the fuel tank is lowered or if the ohm values decrease when the fuel level is lowered. .You can also move the floeter of the fuel sensor from top to down to see the ohm value change
  • If the ohm value change of the fuel sensor can also be measured at the fuel securing module

 

Adjust the tolerance:

Turn the module as in the picture shown below:

 

Do 5 turns clockwise to get a higher tolerance (less alerts).

Don’t turn the screw anti-clockwise.

 

 

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