TECHNOTON FUEL SENSOR
Introduction to the Product
TECHNOTON fuel level sensor is used for accurate fuel level and volume measurement in tanks of vehicles and stationary units. DUT-E helps determine current fuel volume and detect changes (such as refueling or draining) in the fuel tank.
It is widely used in GPS tracking and vehicle telematics systems, either as an additional fuel sensor or as a replacement for the factory-installed sensor. When integrated into a telematics system, DUT-E provides reliable and precise data on fuel levels, helping detect fuel misuse and theft, and offering a comprehensive view of fuel consumption.
Product Specification
| Parameter | Value |
|---|---|
| Operating principle | Capacitive |
| Relative measuring error (to measuring length), % | ±1% |
| Power supply voltage range | 10 – 50 V |
| Consumption current at 12 V | ≤ 50 mA * |
| Consumption current at 24 V | ≤ 25 mA * |
| Availability time after power-up | ≤ 10 seconds |
| Temperature range | -40 to +85 °C |
| Ingress protection rating | IP55/57 |
| Electromagnetic compatibility |
|
| Supported by | DISCOVERY-116A, DISCOVERY-126A, DISCOVERY-226A, DISCOVERY-296A |
Wiring Information
| Wire color | Function |
|---|---|
| Orange | Power |
| Brown | GND |
| Red | RS485/RS232 A |
| White | RS485/RS232 B |
Configuration Guide
This guide explains how to configure and enable the Technoton RS485/RS232 fuel sensor on a Transight Telematics Device after calibration using the official Technoton configuration tool.
Step 1: Select and Enable the Fuel Sensor Type
Defines the sensor model and number of sensors. • Command Format
SET CUFUELTYPE:<Sensor Model>,<Number of Sensors>
• RS485 Example
SET CUFUELTYPE:TECHNO485,1
• RS232 Example
SET CUFUELTYPE:TECHNO232,1
• Expected Response
IMEI: 862942074896044 Command: SET CUFUELTYPE:TECHNO485,1 Response: TECHNO485,1 Error: 0
• Verification Command
GET CUFUELTYPE
• Expected Response
IMEI: 862942074896044 Command: GET CUFUELTYPE Response: TECHNO485,1 (or TECHNO232,1) Error: 0
Step 2: Configure Fuel Sensor Communication Parameters
Set communication and fuel reading parameters. • Command Format
SET CUFUELDATACFG:<Sensor>,<Index>,<Mode>,<Unit>,<Baudrate>,<Address>,<Interval>,<AutopushEnable>,<PreASCII>,<PostASCII>,<Length>,<MinLevel>,<MaxLevel>,<FirmwareVer>
• RS485 Example
SET CUFUELDATACFG:TECHNO,1,PUSH_HEX,PERCENT,19200,01,15,01,PRE,POST,160,0,100,409
• RS232 Example
SET CUFUELDATACFG:TECHNO,1,PUSH_ASCII,PERCENT,19200,01,15,01,PRE,POST,160,0,100,409
• Expected Response
IMEI: 862942074896044 Command: SET CUFUELDATACFG:TECHNO,1,... Response: Error: 0
• Verification Command
GET CUFUELDATACFG:TECHNO,1
• Expected Response
IMEI: 862942074896044 Command: GET CUFUELDATACFG:TECHNO,1 Response: Mode: 1, Unit: 1, BaudRate: 19200, Address: 1, Output Interval: 15, Push Interval: 1 Error: 0
Parameter Reference Table
| Parameter | Value Example | Description |
|---|---|---|
| Param1 | TECHNO | Sensor type identifier |
| Param2 | Index = 1 | Defines sensor instance (0 to 3) |
| Param3 | PUSH_HEX / PUSH_ASCII | Output data mode |
| Param4 | PERCENT | Measurement unit (MM / LITER / CUSTOM) |
| Param5 | 19200 | Baud rate |
| Param6 | 01 | Network address (00 to FF) |
| Param7 | 15 | Output interval (in seconds) |
| Param8 | 01 | Enable autopush mode |
| Param9 & 10 | PRE, POST | ASCII prefix/suffix (for ASCII modes) |
| Param11 | 160 | Length of sensor in mm |
| Param12 & 13 | 0, 100 | Minimum and maximum level |
| Param14 | 409 | Firmware version of the sensor |
Step 3: Save Configuration
• Save Command
SET CUMR:2
Step 4: Verify Fuel Data Transmission
After completing configuration: Monitor data flow in the telematics server Confirm: Live fuel level data appears correctly Values update at defined intervals No transmission drops or inconsistencies