Spectra Invent HX-PC1800 Portable Oil Particle Counter

Overview

The Spectra Invent HX-PC1800 Portable Oil Particle Counter is an engineered solution for in-situ and at-line particulate contamination analysis of liquid lubricants and insulating oils. It operates on the light obscuration (LO) principle—also known as the optical blockage or photometric blocking method—in accordance with ISO 11171 and ISO 4402. As a particle passes through a focused laser beam within the flow cell, it attenuates the incident light proportionally to its cross-sectional area. This transient signal is converted into an electrical pulse whose amplitude correlates to particle size, enabling quantitative sizing and counting across standardized threshold channels. Designed for operational resilience, the HX-PC1800 functions reliably under extreme ambient conditions—including elevated temperatures (up to 80 °C) and system pressures (with optional pressure regulation)—making it suitable for mobile maintenance units, offshore platforms, aircraft hangars, and heavy industrial sites where laboratory access is impractical.

Key Features

• High-fidelity LO detection using a stabilized semiconductor laser source and low-noise photodiode array, ensuring repeatability ≤±3% RSD for repeated measurements of identical samples.
• Integrated dual-parameter sensing: real-time monitoring of fluid temperature (±0.5 °C accuracy) and water content (capacitive moisture sensor, range 10–1000 ppm, resolution 1 ppm) synchronized with particle counting.
• Chemically inert fluid path constructed entirely from electropolished 316L stainless steel and PTFE-lined tubing, resistant to hydrocarbons, esters, polyalkylene glycols (PAGs), and phosphate ester-based fluids.
• Modular pressure interface supports both positive-pressure aspiration (up to 10 bar with external booster) and vacuum-assisted sampling (down to –0.8 bar), enabling analysis of high-viscosity oils (up to 400 cSt at 40 °C) and degassed sample preparation.
• On-device data processing engine performs ISO 4406 code assignment, NAS 1638 class determination, and SAE AS4059 severity level calculation without external software dependency.
• Configurable alarm thresholds per particle size bin; user-definable pass/fail criteria aligned with OEM specifications or internal cleanliness targets (e.g., ISO 4406 16/14/11).
• Two flushing protocols—volumetric (mL-based) and temporal (second-based)—for optimized cleaning between samples and extended sensor longevity.
• Embedded calibration verification routine traceable to NIST-traceable reference standards (ISO MTD, ACFTD, ISO Medium Test Dust), supporting compliance with ISO 17025 quality systems.

Sample Compatibility & Compliance

The HX-PC1800 is validated for use with mineral-based, synthetic, and bio-based lubricants—including turbine oils, compressor oils, hydraulic fluids (HL, HM, HVLP), gear oils (GL-4, GL-5), engine crankcase oils (API SP/CJ-4), and dielectric insulating oils (IEC 60296). Its design conforms to the mechanical and metrological requirements of ISO 4406:2017 (fluid cleanliness coding), NAS 1638 (aerospace hydraulic fluid classification), SAE AS4059F (contamination control for aerospace systems), and Chinese national standards GJB 420B and GB/T 14039. For regulated environments, the instrument supports audit-ready data logging with timestamped metadata, operator ID tagging, and immutable event records—facilitating alignment with GLP, GMP, and FDA 21 CFR Part 11 electronic record requirements when deployed with validated software extensions.

Software & Data Management

The embedded Linux-based operating system provides a responsive touchscreen interface with intuitive navigation, multilingual support (English/Chinese toggle), and persistent parameter templates for rapid method recall. All measurement data—including raw pulse histograms, cumulative/differential counts per ISO-defined channels, temperature/moisture logs, and grade assignments—are stored internally in CSV and XML formats. USB host connectivity enables direct export to portable drives or integration with enterprise CMMS/LIMS platforms. Optional SpectraLink Desktop Software (v3.2+) adds advanced trending analytics, multi-instrument fleet reporting, statistical process control (SPC) charting, and PDF report generation compliant with ISO/IEC 17025 documentation guidelines.

Applications

This portable counter serves critical roles across asset-intensive industries: condition monitoring of aviation hydraulic systems prior to flight; predictive maintenance of wind turbine gearboxes; routine testing of transformer oil in substation preventive maintenance programs; verification of cleanliness levels after filter changes in marine propulsion systems; and qualification of new oil batches in automotive manufacturing assembly lines. Its portability and ruggedization make it ideal for third-party field service technicians conducting ISO-certified oil analysis audits, military depot inspections, and rail rolling stock reliability assessments.

FAQ

What particle size ranges does the HX-PC1800 measure?
It reports counts across six user-selectable channels aligned with international standards: ≥4 µm, ≥6 µm, ≥14 µm, ≥21 µm, ≥38 µm, and ≥70 µm, with sizing resolution traceable to ISO 11171 calibration protocols.
Can the instrument be used for online continuous monitoring?
Yes—when paired with the optional inline pressure reducer and flow regulator kit, the HX-PC1800 supports real-time bypass sampling from operating hydraulic or lube oil circuits at pressures up to 250 bar.
Is calibration traceable to national standards?
Calibration verification utilizes ISO Medium Test Dust (MTD) certified reference materials with NIST-traceable particle size distribution certificates, satisfying ISO/IEC 17025 Clause 6.6 requirements.
How is data integrity ensured during field use?
All measurements include embedded digital signatures, tamper-evident timestamps, and sequential audit logs; optional firmware enables encrypted storage and role-based access control.
Does the device comply with environmental protection directives?
Yes—the unit meets RoHS 3 (2015/863/EU) and REACH SVHC compliance requirements; housing materials are halogen-free and fully recyclable.