JCQM-6900 Multi-Parameter Oil Quality Sensor

JCQM6900 Multi-Parameter Oil Quality Sensor

Real-time monitoring of 12 parameters in lubricating oil, including wear particles, viscosity (kinematic viscosity, dynamic viscosity), viscosity at 40°C, density, dielectric constant, dielectric constant at 40°C, water activity, water content (ppm), free water content, temperature, and health index

Equipped with an alarm indicator for easy on-site inspection and timely detection of oil abnormalities

Adsorption flow rate reaches 3 m/s

Outputs green, yellow, and red status alerts

Product Features

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

Simultaneous measurement of multiple parameters to promptly detect oil contamination and degradation, helping users optimize oil change intervals

Adsorption-based wear particle concentration monitoring for timely assessment of equipment wear

No need for customers to calibrate free water; the sensor features an automatic calibration function

Capable of analyzing the sources of oil contamination for more targeted oil failure analysis

Big data oil analysis algorithms help customers solve diagnostic challenges and provide built-in health index analysis

24/7 uninterrupted monitoring for real-time oil condition updates

High compatibility with CAN-J1939 and RS485-Modbus RTU

Suitable for monitoring oil under high-flow conditions; no need for static oil samples; superior viscosity interference resistance compared to similar sensors; rugged and durable

Integrated structural design for easy installation

Product Overview

The JCQM6900 Multi-Parameter Oil Quality Sensor is designed for real-time, online monitoring of lubricant health and wear conditions. 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 JCQM6900 integrates electrochemical impedance spectroscopy (EIS) technology to measure the oil’s impedance spectrum, ultrasonic viscosity monitoring technology to measure viscosity and density, and inductive magnetic field analysis to assess equipment wear. micro-moisture monitoring technology to detect trace moisture and water activity in the oil, while also monitoring dissolved water and free water. This enables the assessment of the oil’s health status, and based on Jiecheng IoT’s years of experience in online oil monitoring, it analyzes the oil health index. It evaluates the depletion of lubricant additives, monitors the degree of oil aging, and determines the contamination status of the oil.

The JCQM6900 helps users improve the health management of their equipment assets. Based on real-time monitoring results, it supports maintenance decisions and prevents abnormal wear and corrosion caused by oil aging and contamination.

Applications

Lubricating oil is the “lifeblood” of major equipment. Lubricant failure directly leads to abnormal wear of mechanical structures and critical components, and is the primary cause of large-scale equipment failures and serious accidents. The JCQM6900 continuously monitors the degree of oil aging and contamination in the oil circuit 24 hours a day, providing real-time feedback on the oil’s condition. This helps users prevent or mitigate equipment failures caused by lubricant failure.

The JCQM6900 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, and gasoline/diesel engines.

Technical Specifications

Ferritic Abrasive Particle Concentration

Measurement Range: 0–100%

Resolution: 0.01%

Dielectric Constant

Dielectric Constant: 1–6;

Dielectric Constant Accuracy: ±0.01 (absolute accuracy);

Water Activity

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

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

Measurement Accuracy: ±10%

Free Water Content:

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

Temperature Stability: 0.01% water/°C

Resolution: 100 ppm

Viscosity Parameters (Optional):

Dynamic viscosity: 1–10,000 cP    Accuracy: 2%

Kinematic viscosity: 1–12,000 cSt   Accuracy: 2%

Density Parameters (Optional):

Measurement Range: 600 kg/m³ to 1300 kg/m³

Accuracy: 2%

Temperature

Measuring range: –40 to 120°C

Accuracy (at +25°C): ±0.2°C

Operating temperature: –40 to +85°C

Storage temperature: –40 to +85°C

Permissible oil temperature: –40 to +120°C

Health Index: 0–100 (Customers can customize the oil’s health rating and set alert thresholds based on their specific needs)

Output

Digital Signal: RS485 MODBUS-RTU (RS232 optional)

Analog Signal: 4–20 mA, 0–20 mA; resistive load <500 Ω

Other

Mechanical Interface: G1

Pressure Range: Up to 10 MPa

Materials: Anodized aluminum, stainless steel (materials are optional)

Protection Rating: IP67

Power Supply: DC 9V–36V

Power Consumption: < 5 mA + load current

Transmitter Weight: < 300 g

Total Package Weight: <370 g

Cable Specifications: M8, 4-core

Cable Length: 2 m

Compliance Standards: CE Certified, EN 61326-1, EN 61326-2-3, ICES-003 Class B

                         Figure 1. Dimensions of the JCQM-6900 Sensor