JCQL-X Oil Level and Level Sensor Combo

JCQL-X Combined Oil Quality and Level Sensor

Real-time monitoring of tank liquid level, as well as oil degradation and contamination

Integrated oil quality parameters, temperature, and liquid level alarm functions

Product Features

Wide range of applications; suitable for all types of lubricating oils

Simultaneous measurement of multiple frequencies and parameters to promptly detect changes in tank fluid levels, as well as oil contamination and degradation, helping users optimize oil change intervals

Big data-driven oil analysis algorithms to help customers solve diagnostic challenges

24/7 uninterrupted monitoring provides real-time updates on oil condition and tank level

High compatibility, supporting CAN-J1939, RS485-Modbus RTU, and 4-20mA output

No moving parts, ensuring robust durability

Compact and lightweight for easy installation

Product Overview

The JCQL-X dual-function oil quality and level sensor is designed for real-time, online monitoring of oil tank level changes and the health of lubricating oil. By continuously monitoring the condition of the oil, it enhances the efficiency of condition-based maintenance, optimizes oil change intervals, and reduces reliance on offline analysis.

The JCQL-X employs unique level detection technology and electrochemical impedance spectroscopy (EIS) to measure the oil’s impedance spectrum, thereby determining the oil’s health status. The impedance spectrum can measure multiple parameters, enabling the assessment of lubricant additive depletion, monitoring of oil aging, and identification of oil contamination.

The JCQL-X helps users improve the health management of their equipment assets. Based on real-time monitoring results, it supports maintenance decisions and helps prevent abnormal wear and corrosion caused by oil leaks, aging, or contamination.

Applications

Lubricating oil is the “lifeblood” of major equipment. Oil leaks and oil degradation directly cause abnormal wear on mechanical structures and critical components, serving as the primary root cause of failures in large-scale equipment and serious accidents. The JCQL-X continuously monitors oil tank levels as well as the degree of oil aging and contamination 24 hours a day, providing real-time feedback on the oil’s condition. This helps users prevent or mitigate equipment failures caused by lubricating oil degradation.

The JCQL-X is widely applicable across industries such as power generation, mining, cement, shipping, defense, industrial manufacturing, papermaking, petrochemicals, transportation, metallurgy, aviation, oil fields, and ports. Specific applications include wind turbine gearboxes, aircraft/helicopter gearboxes, hydraulic transmission systems, machining centers, steam turbines, gearboxes, electric vehicle motor cooling systems, and gasoline/diesel engines.

Technical Specifications

Monitoring Parameters:

Liquid Level: 300, 500, 700, 1000, 1500, 2000 mm (customizable range)

Liquid Level Accuracy: ±0.5% F.S.

Dielectric Constant

Dielectric constant: 1–10;

Dielectric constant accuracy: ±0.01 (absolute accuracy)

Water Activity (Optional)

Measurement Range 0 … 1 aw

Measurement Accuracy 0 … 0.6      ± 0.02 aw

0.6 … 0.9     ± 0.03 aw

0.9 … 1      ± 0.04 aw

Response Time (Typical) < 1 minute

Water Content in Dissolved Water (Optional)

Measurement Range: 0–10,000 ppm, 0–1% (Suitable for mineral-based transformer oil)

Measurement Accuracy: ±10%

Free Water Content (Optional)

Measuring Range (Absolute Accuracy): 0–5% (±0.1%), 5%–inversion point (±2%), 0–100%

Temperature Stability: 0.01% water/°C

Resolution: 100 ppm

Temperature

Measuring range: –40 to 120°C

Accuracy (at +25 °C): ±0.2°C

Mechanical Interface: Flange Mounting

Protection Rating: IP68

Flow Rate: Flow rate-independent

Viscosity: Viscosity-independent

Ambient Temperature: -40°C to 85°C

Fluid Temperature: -40°C to 120°C

Operating Pressure: 10 MPa (Max.)

Communication Protocols: CAN-J1939/RS485-Modbus RTU; 4–20 mA

Weight: 200 g

Power Supply: 10–30 VDC, 0.4 W