High Accuracy Capacitance Fuel Level Sensor Cuttable Aluminum Tube Working Realtime Fuel Monitoring SOS / Geofence
Applications:
1. Vehicle Rental/Special Tracking System
2. Finance and Insurance Business Tracking System
3. Car Commanding and Dispatching System
4. Heavy Construction Vehicles Tracking Device
5. Shipping Cargoes Tracking
Specification Details:
| Content | Specs. |
| Dim. | 200~ 1500mm, any length available within this range |
| Weight | 100g |
| Materials | Aluminum ally |
| Wide range of power supply | DC10V ~ 32V/ 5V(Input voltage is customized) |
| Protection rank | IP65 |
| Maximum operating current | < 15mA |
| Rated Power: | 125mW |
| Rated Current for alarm switch | 500mA |
| Wire | PVC material (PA corrugated pipe cover is optional) |
| Mode of connection | Voltage output, RS232, RS485 |
| Operating temperature | -40-+85 |
Mode of connection:
1. Voltage output
Red: VCC ( 10~32V )
Black: GND
Blue: V out (0.5~4 .5V/0~3.3V/0~5V)
2. RS232
Red: VCC ( 10~32V )
Black: GND
Blue: sensor receiving line(Rx)
Yellow: sensor sending line(Tx)
3. RS485
Red: VCC ( 10~32V )
Black: GND
Blue: B
Yellow: A
Calibrator:(Option tool)
Calibrator must couple with the sensor, and it has 12V/ 23A battery inside.
Red light is the power light. If the light isn't on when switch on, battery replacement is needed;
Green light is the calibration light. Full/ Empty button is showed in above picture.
Note: Calibration is necessary before using the sensor due to different fuel types. Calibrator battery power could only used for roughly 15 times. Please change the battery when the red light becomes dark, indicating low battery.
How to Adjustment of sensor length?
Aluminum tube at the bottom can be shorten according to different requirements from customers. Steps are as follows:
1. Customer specifies the sensor length according to the needs;
2. Cut the unwanted part with steel saw;
3. Remove the burrs and the debris at the cutting area with knife file to avoid short circuit;
4. Remove the plug, and assemble the rubber plug in the aluminum tube, then assemble the plastic bottom plug.
Calibration of the fuel level sensor
Calibration of the fuel sensor is calibration of the full level and empty level. The fundamental principle is to record a full value and empty
value in the fuel sensor when tank is full and empty; The purpose is to define the position level of the fuel when it is full and empty in the
tank. The electrical signal changes as the fuel level changes, calculating the height of the fuel level.
Note:
1. Calibration of full level
Fill the tank to desired full level, put sensor into the tank, wait for about 30 seconds until the aluminum tube of the sensor is filled with
fuel, then press and hold on to the "F" button on the calibrator for 5 seconds till the green LED light slowly flickers. This indicates that
calibration for full level is in progress. Release the "F" button at this moment. The green LED light will turn off in about 10 seconds,
indicating that the calibration of the full level is complete.
2. Calibration of the empty level
Remove sensor from the container/tank. Place on the side. After liquid fully drains from the sensor, press and hold on to the “E" button
for about 5 seconds until the green LED light starts to flicker fast. This indicates that calibration for empty level is in progress. Release
the "E" button at this moment. The green LED light will turn off after about 10 seconds, indicating that calibration of the empty level is
complete.
3. Calibration completion
Disconnect the calibrator after calibration is done. Connect red cable and black cable with power, calibration becomes effective when
sensor is power on.
Note: 1. If press the wrong button during operation, you can switch off the calibrator and exit the mode and readjust.
2. Please ensure the calibrator is turned on at all times during calibration. Re-calibrate the sensor if power off/switch off .
4. Inspection
When calibration of the full level and empty level is done, inspect the output signal of the sensor:
(RS232/RS485 output needs special equipment or connect with GPS
tracker to inspect the signal output.)
If the output signal meets the values listed above, it means calibration
is OK and normal operation of the sensor.
Otherwise, please check the mode of connection and re-calibrate it.
