Hydrotechnik Optical Particle Counter (Patrick)
The Hydrotechnik Patrick is a precision optical particle monitor designed for continuous, in-line contamination monitoring of hydraulic and oil systems. Using the proven light extinction principle, it detects particle counts in real time and reports cleanliness levels to internationally recognised standards.
Built for stationary installation, the Patrick gives maintenance teams an immediate, ongoing picture of fluid condition — so you can act on trend data before a pump, motor, or valve is compromised.
Key Specifications:
- Measuring principle: Light extinction (optical)
- Calibrated to ISO 11943 using ISOMTD test dust
- Cleanliness display: ISO 4406:99, SAE AS4059E, NAS 1638, GOST 17216
- Measuring range: 0–24 (ISO 4406:99); calibrated range 10–22
- Measurement accuracy: ±1 ordinal number
- Particle size channels: 4, 6, 14, and 21 µm(c)
- Flow rate: 50–400 ml/min
- Max operating pressure: 420 bar (dynamic) / 600 bar (static)
- Fluid temperature range: −20°C to +85°C
- Supply voltage: 9–36 VDC; output signal 4–20 mA
- Interfaces: CANOpen, RS232
- Data memory: 3,072 measurements
- Fluid connection: 2× G¼ MINIMESS® 1620
- Electrical connection: M12 × 1, 8-pin connector
- Enclosure: Stainless steel (1.4028), IP65
- Weight: 950 g
- Media compatibility: Mineral oil (HLP), ester fluids (HEES), bio-oils (HETG), diesel fuel
The Patrick features a ±90° rotating display for flexible installation positioning, an integrated hourmeter, and viscosity-independent flow measurement — making it well suited to the varied operating conditions found across New Zealand's heavy industry and mobile plant sectors.
