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| == Introduction to the Product ==
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| '''DUT-E''' 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.
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| 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.
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| == Product Specification ==
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| {| class="wikitable" style="width:70%;"
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| ! style="background-color:#800020; white-space:nowrap; color:white;" | Parameter
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| ! style="background-color:#800020; white-space:nowrap; color:white;" | Value
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| |-
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| | Operating principle || Capacitive
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| |-
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| | Relative measuring error (to measuring length), % || ±1%
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| |-
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| | Power supply voltage range || 10 – 50 V
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| |-
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| | Consumption current at 12 V || ≤ 50 mA *
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| |-
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| | Consumption current at 24 V || ≤ 25 mA *
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| | Availability time after power-up || ≤ 10 seconds
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| |-
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| | Temperature range || -40 to +85 °C
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| |-
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| | Ingress protection rating || IP55/57
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| |-
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| | Electromagnetic compatibility ||
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| * ESD Protection (Level II) – GOST 30378, GOST R 50607
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| * EMI Protection (Level IV) – STB ISO 7637-2, GOST 28751
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| |}
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| == Wiring Information ==
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| {| class="wikitable" style="width:50%;"
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| ! style="background-color:#800020; white-space:nowrap; color:white;" | Wire color
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| ! style="background-color:#800020; white-space:nowrap; color:white;" | Function
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| | Orange || Power
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| | Brown || GND
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| | Red || RS485 A
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| |-
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| | White || RS485 B
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| |}
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| == Device Configuration ==
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| # Connect the DUT-E sensor to the device via RS-485 ports.
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| # Open the configurator tool '''GUI_v2/v3'''.
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| # Click on '''Connect Sensor'''.
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| #
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| # For **Automatic mode**, set the "Automatic Transmission mode" to hex format with a desired time interval.
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| # For **Request mode**, disable "Automatic Transmission mode".
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| # Click on '''Save to Sensor'''.
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| # Now use the '''QCOM Tool''' to verify that the fuel data is visible after proper configuration.
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| == Command Reference ==
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| ==== For Active Mode ====
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| <pre>
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| SET CUENSDA:ON,CUSRLSRC:TECHNO485,CUSRLDATACFG:1-0-0-0-0-0-0-0-0
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| </pre>
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| ==== For Request Mode ====
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| <pre>
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| SET CUENSDA:ON,CUSRLSRC:TECHNO485,CUSRLDATACFG:1-0-0-0-0-0-0-0-0
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| SET CUENFUELREQ:1,CUFUELNOS:1,CUFUELUR:10,CUFUELINT:5
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| // CUENFUELREQ:0 - Request mode disabled
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| // CUENFUELREQ:1 - Request mode enabled
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| SET CUFUELDATAREQ:1-0x31-0x01-0x06-0x6c
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| // First bit = Number of fuel sensors
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| // CRC for 1 sensor = 0x31-0x01-0x06-0x6c
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| </pre>
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| ==== For Connecting Parallel Fuel Sensors (2 Sensors) ====
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| <pre>
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| SET CUENSDA:ON,CUSRLSRC:TECHNO485,CUSRLDATACFG:1-0-0-0-0-0-0-0
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| SET CUENFUELREQ:1,CUFUELNOS:2,CUFUELUR:10,CUFUELINT:5
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| // CUENFUELREQ:0 - Request mode disabled
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| // CUENFUELREQ:1 - Request mode enabled
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| SET CUFUELDATATEQ:2-0x31-0x02-0x06-0x39
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| // First bit = Number of fuel sensors
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| // CRC for 2 sensors = 0x31-0x02-0x06-0x39
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| </pre>
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