Real-time monitoring of lubricating oil parameters such as water activity, water content (in ppm), dielectric constant, free water content, and temperature
Solves the challenge of detecting water content ranging from 0 to 5,000 ppm
Simultaneously measures free water and dissolved water, making it ideal for monitoring water content in oil filtration systems

Product Features
Wide range of applications; suitable for all types of lubricating oils
Simultaneous measurement of multiple parameters to promptly detect water contamination in lubricating oils, helping users filter out water in a timely manner and prevent equipment failures caused by water contamination
No need for customers to calibrate free water; the sensor features an automatic calibration function
Big data oil analysis algorithms help customers solve diagnostic challenges and provide built-in health index analysis
24/7 uninterrupted monitoring for timely feedback on oil condition
High compatibility, supporting CAN-J1939 and RS485-Modbus RTU
Suitable for monitoring under high-flow conditions; compatible with oils of varying viscosities; rugged and durable
Compact design for easy installation
Product Overview
The JCQM2200 Multi-Parameter Oil Moisture Sensor is designed for real-time, online monitoring of moisture contamination levels in lubricating oils. Through continuous monitoring of oil condition, it enhances condition-based maintenance efficiency, optimizes oil change intervals, and reduces reliance on offline analysis.
The JCQM2200 integrates micro-moisture monitoring technology to detect trace moisture and water activity in oil, while also monitoring dissolved water and free water. This provides insights into the oil’s health status, and leverages Jiecheng IoT’s years of experience in online oil monitoring to analyze the oil health index. It evaluates the depletion of lubricant additives, monitors the degree of oil aging, and assesses the contamination status of the oil.
The JCQM2200 helps users improve the health management of equipment assets, supports maintenance decisions based on real-time monitoring results, and prevents abnormal wear and corrosion of equipment caused by moisture contamination in the oil.
Application Areas
Lubricating oil is the “lifeblood” of major equipment. Water contamination in lubricating oil directly causes abnormal wear on mechanical structures and critical functional components, serving as the primary root cause of large-scale equipment failures and serious accidents. The JCQM2200 provides 24/7 uninterrupted monitoring of water contamination levels in the oil circuit, providing real-time feedback on the oil’s operational status. It helps users prevent or mitigate equipment failures caused by lubricant degradation.
The JCQM2200 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
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
Dissolved Water Content
Measurement range: 0…10,000 ppm, 0–1% (applicable to mineral transformer oil)
Measurement accuracy: ±10%
Free water content:
Range (absolute accuracy): 0–5% (±0.1%), 5%–inversion point (±2%), 0–100%
Temperature stability: 0.01% water/°C
Resolution: 100 ppm
Temperature
Measurement range: -40 ... 120°C
Accuracy (at +25 °C): ± 0.2°C
Operating temperature: -40 ... +85 °C
Storage temperature: -40 ... +85 °C
Permissible oil temperature: -40 ... +120 °C
Output
Digital Signal: RS485 MODBUS-RTU (RS232 optional)
Analog Signal: 4–20 mA, 0–20 mA (resistive load <500 Ω)
Other
Mechanical Interface: G1/2
Pressure Range: Up to 30 bar
Probe Material: 304 Stainless Steel
Protection Rating: IP67
Power Supply: DC 9V–36V
Power Consumption: < 5 mA + load current
Transmitter Weight: < 200 g
Total Package Weight: <270 g
Cable Specification: M12, 5-pin
Cable Length: 2 m
Compliance Standards: CE Certified, EN 61326-1, EN 61326-2-3, ICES-003 Class B
Wiring Definitions: Brown VCC; Black GND;
White CAN H; Blue CAN L

Extended-arm design (arm length customizable)
Beijing Jiecheng IoT Technology Co., Ltd.
Phone: 18611648453 (same as WeChat)
18250846591 (same as WeChat)
QQ: 37691046
Email: 37691046@qq.com
Address: Building A, Guangxingyuan Internet Smart Technology Park, Bao'an District, Shenzhen