The principle of a capacitive liquid level sensor is to use the capacitance formed by the liquid medium filled between the positive and negative probes to linearly change with the liquid level, and convert the change in capacitance (i.e. the change in liquid level) into a standard electrical signal output. The core components of the product use highly integrated specialized capacitance measurement chips, which have undergone precise temperature compensation and approximately self correction, and have the advantages of high precision, high stability, and continuous measurement. No need for drilling, replacing the original car oil float solution, safe and reliable.
Product Details
Product Features
Convenience:It can be fixed by flange installation, simple and easy to operate.
Independence:Directly measuring the fuel level in the fuel tank to obtain fuel consumption values does not have any effect or impact on the oil system/pipeline.
Uniqueness:Users with range self truncation function can recalibrate by pressing the button, and digital output can also be equipped with debugging software.
Self adjustability:Sensors can adjust their range on-site and be installed according to different fuel tank sizes; The sensor has added temperature compensation function to automatically correct errors caused by changes in fuel volume due to temperature fluctuations.
Security:Directly replace the original fuel gauge without the need to drill holes and install capacitive sensors on the fuel tank. The electronic compartment adopts explosion-proof design and has passed explosion-proof certification. The sensor flange has two layers of leak proof grooves to prevent oil leakage problems.
Stability:No mechanical moving parts, mature and stable circuit structure, and high-quality components will enable the sensor to be used continuously for several years without the need for replacement
Technical specifications
| GFCG20L series capacitive liquid level sensor | |
| power supply | 5VDC[1]/12VDC[2]/15 ~28V DC |
| Displacement range | 100~1500mm (customizable by users) |
| output signal | 0~5VDC or 0~10VDC (three wire system) 4~20mA or 0~20mA (three wire system) |
| RS485 | |
| load capacity | Voltage signal output minimum load>5K Ω, current signal maximum output load resistance 600 Ω |
| Nonlinear error | ± 0.5% F.S or ± 1% F.S |
| Repetitive error | <±0.02%f.s<> |
| temperature coefficient | 0.025%/℃ |
| Operating Temperature | -40℃~ 85℃ |
| Storage temperature | -40℃~ 100℃ |
| Rated working pressure | 0.63MPa |
| Measuring rod material | Aluminum alloy/stainless steel |
| Installation interface | Flange connection or threaded connection |
| qualification method | Straight out cable |
| Shell protection level | IP65 |
Explanation: [1] When powered by 5VDC, the output is only digital output (RS485). If RS232 output is required, please confirm in advance.
[2] 12VDC power supply, output cannot be 0-10VDC.
Signal output information
| analog output | Output format | output range | |
| A: Current output | 1、4~20mA | ||
| V: Voltage output | 1、0~10V 4、-5~5V | ||
| 2、0~5V 6、-10~10V | |||
| Digital output | Output format | Data format and baud rate | |
|
M: Modbus output (Factory default baud rate 19200) |
RTU format 0 : 2400 1 : 4800 2 : 9600 3 : 19200 4 : 38400 5 : 76800 6: 115200 |
ASCII A : 2400 B : 4800 C : 9600 D : 19200 E : 38400 F : 76800 G: 115200 |
|
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Phone: 0755-83343508/0755-28030573
Fax: 0755-83356166
Email: ming@greystoneenergy.com.cn
Address: 2nd Floor, Building 10, Shenliang Guanlan Automotive Electronics Characteristic Industrial Park, 299 Guanping Road, Longhua District, Shenzhen
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