Hydraulic Fluid Particle Counters and Monitors

Safeguarding Hydraulic System Health

Hydraulic fluid particle counters and monitors are essential tools for maintaining the reliability and performance of complex hydraulic systems. By measuring particulate contamination, moisture, and temperature levels, they help reduce unplanned downtime, extend component life, and lower overall maintenance costs. These devices provide operators with real-time insight into fluid cleanliness, enabling proactive maintenance and improved system efficiency.

At Hydraulics Online, we supply fluid particle counters and monitors from leading manufacturers – including MP Filtri – with expert advice to help you select the right solution for your application.

Our website shows only a selection of what we supply. For impartial advice and access to our full range of hydraulic components, contact our expert team.

Particle Counters product category header - Image of MP Filter LPA3 portable particle counter - For impartial advice and access to our full range of hydraulic components, contact our expert team.

Fluid particle counters are precision instruments that measure the level of contamination in hydraulic fluids. They use advanced optical and laser technologies to detect and count particles, providing a clear picture of fluid condition.

Key features include:

Accurate contamination measurement – detects particles of varying sizes.
Portable and laboratory-ready designs – suitable for both on-site and controlled testing environments.
Multi-parameter monitoring – many models also measure moisture and temperature.
Connectivity options – compatible with bottle samplers and data logging systems.

LPA3 Particle Counter – next-generation portable unit delivering fast, accurate hydraulic health checks using optical and photodiode technology. Robust yet lightweight, ideal for field use.
LPA2 Twin Laser Particle Counter – highly precise instrument for both on-site and laboratory applications. Connects to MP Filtri’s bottle sampler range for laboratory-based particle counting.
CML2 Laser Particle Analyser – portable analyser designed for on-site use. Measures particulate contamination, moisture, and temperature levels across a wide range of hydraulic fluids.

Enhanced reliability – ensures hydraulic systems operate within cleanliness standards.
Reduced downtime – early detection of contamination prevents costly failures.
Cost savings – extends component life and reduces maintenance expenses.
Flexible use – portable units for field checks, laboratory models for detailed analysis.
Comprehensive monitoring – provides a full picture of fluid health beyond particle counts.

These devices are widely used in:

Mobile machinery (construction, agriculture, forestry)
Industrial automation and process control
Marine and offshore hydraulic systems
Energy and utility installations
Aerospace and defence hydraulic systems

They are particularly valuable in systems where fluid cleanliness directly impacts performance and safety.

Why is fluid cleanliness important in hydraulics? Contaminated fluid accelerates wear, reduces efficiency, and can cause catastrophic system failures.

Can particle counters be used in the field? Yes, portable models like the MP Filtri LPA3 and CML2 are designed for on-site use.

Do particle counters measure more than contamination? Many models also measure moisture and temperature, providing a complete hydraulic health profile.