The YFJ-4 Online Particle Counter Sensor is developed based on the light blockage method (photoresistance method) principle. It is used for online real‑time monitoring of particle pollution in the oil circuit of hydraulic systems. The sensor can detect oil pollution of solid particles in hydraulic oil, lubricating oil, transformer oil, insulating oil, turbine oil, gear oil, engine oil, kerosene, water‑based hydraulic oil, and particle impurities in organic liquids and polymer solutions.
Key Capabilities
- Particle size: 1–100 μm or 4–70 μm(c)
- 8 detection channels per ISO 4402 / ISO 11171
- Accuracy: ±1 level (±20% particle counting)
- Flow rate: 10–300 mL/min
- Online pressure: 0.2–10 MPa (up to 40 MPa optional)
Request a Quote
Description
The YFJ-4 online particle counter sensor is developed based on the light blockage method (photoresistance method) principle, which is used for online real‑time monitoring of particle pollution in the oil circuit of hydraulic systems.
It can be widely used in aerospace, aviation, electric power, petroleum, chemical industry, traffic, port, metallurgy, machinery, and automobile manufacturing. The sensor detects the oil pollution of solid particles in hydraulic oil, lubricating oil, transformer oil, insulating oil, turbine oil, gear oil, engine oil, kerosene, water‑based hydraulic oil, and detects particle impurities in organic liquids and polymer solutions.
Applications
Oil pollution degree detection for:
Features
-
1
Light blockage method (photoresistance) — proven, accurate particle detection technology.
-
2
Calibrated as ISO 4402 or ISO 11171 — complies with international particle counting standards.
-
3
Standard RS485 interface — easy integration with PLCs, SCADA, and monitoring systems.
-
4
Real‑time data analysis — grasp and analyze real‑time data and hydraulic system wear trends.
-
5
Multiple output options — RS485, RS232, or 4–20mA signal communication.
-
6
USB data export — connect to USB flash disk for offline data analysis.
Why Online Particle Counting?
Online particle counters provide continuous cleanliness monitoring — unlike lab samples which only give periodic snapshots. You catch contamination events immediately and can correlate them with specific operations or environmental conditions.
Specifications
Measurement Capabilities
| Parameter | Specification |
|---|---|
| Standard | NAS 1638, ISO 4406, SAE 4059F |
| Particle Size Range | 1 – 100 μm or 4 – 70 μm(c) |
| Detection Channels | 8 channels |
| Flow Rate | 10 – 300 mL/min (suggested 25 mL/min) |
| Online Pressure | 0.2 – 10 MPa (up to 40 MPa optional) |
| Accuracy | ±1 level (±20% particle counting) |
| Sensitivity | 1 μm (ISO 4402) or 4 μm(c) (ISO 11171) |
| Particle Counting Volume | 10 mL |
General Specifications
| Item | Parameter |
|---|---|
| Light Source | Semiconductor laser, light extinction |
| Fluid Temperature | 0 ℃ – 80 ℃ |
| Working Temperature | ‑20 ℃ – 60 ℃ |
| Power Supply | DC 12 – 36 V |
| Data Export | USB port / USB flash disk |
| Signal Communication | RS485 / RS232 / 4–20mA |
| Mechanical Interface | G 1/8 (OD=6mm inlet/outlet pipe) |
| Dimension | 100 × 75 × 70 mm |
| Weight | 0.95 kg |
The 8 Detection Channels
The YFJ-4 counts particles in 8 size channels: