PULUODY UP-200 Integrated Online Ultrapure Water & Purified Water Particle Counter

Overview

The PULUODY UP-200 Integrated Online Ultrapure Water & Purified Water Particle Counter is an industrial-grade optical liquid particle counter engineered for continuous, real-time monitoring of particulate contamination in ultrapure water (UPW), purified water (PW), and process chemicals used in high-precision manufacturing environments. Based on the ISO 21501-2:2007 standard for light-scattering liquid-borne particle counters, the UP-200 employs a proprietary eighth-generation dual-laser narrow-beam sensor architecture to deliver high-resolution detection across a dynamic size range of 0.1–100 µm (with optional extension to 0.03–3000 µm). Its measurement principle relies on single-particle light interaction—where each suspended particle passing through the focused laser interrogation zone generates a scattered light pulse proportional to its cross-sectional area—enabling quantitative enumeration and sizing without reliance on statistical assumptions or ensemble averaging. Designed for integration into semiconductor fab wet benches, chemical delivery systems, UPW recirculation loops, and pharmaceutical water-for-injection (WFI) distribution networks, the UP-200 operates under demanding conditions: ambient temperatures from 0–80 °C, system pressures up to 31.5 MPa (with integrated pressure regulation), and flow rates precisely controlled between 5–100 mL/min via a dual-stage metering system comprising a precision piston pump and ultra-stable electromagnetic flow control.

Key Features

• Dual-laser narrow-beam optical detection with enhanced signal-to-noise ratio for reliable sub-micron particle resolution (down to 0.1 µm)
• High-accuracy volumetric sampling enabled by dual-mode flow control: mechanical piston pump + closed-loop electromagnetic flow regulation (≤±1% volumetric precision)
• Real-time, continuous online operation with configurable sampling intervals (5–120 seconds) and automatic alarm triggers based on user-defined particle thresholds
• Ruggedized stainless-steel housing rated for Class 10 cleanroom environments; IP65 ingress protection; resistant to thermal cycling, vibration, and chemical exposure
• Integrated 7-inch color TFT touchscreen interface with intuitive navigation; supports wireless keyboard/mouse input for remote configuration and diagnostics
• Comprehensive analog and digital I/O: isolated 4–20 mA output with over-limit alarm flagging, RS232/RS485 serial interface, Gigabit Ethernet (LAN), and USB 2.0 host/device ports
• Firmware and software architecture compliant with data integrity requirements per FDA 21 CFR Part 11: role-based access control, electronic signatures, audit trail logging, and encrypted database backup/restore

Sample Compatibility & Compliance

The UP-200 is validated for use with low-conductivity aqueous media including ASTM Type I ultrapure water (resistivity ≥18.2 MΩ·cm), pharmaceutical purified water (PW), water-for-injection (WFI), semiconductor process chemicals (e.g., SC1, SC2, DHF, IPA), and high-purity solvents. It meets critical industry standards for particle metrology and quality assurance, including ISO 21501-2:2007 (light scattering particle counters), GB/T 29024.2–2016 (optical single-particle sizing), JJG 1061–2010 (calibration verification protocol for liquid particle counters), SJ/T 11638–2016 (particle testing in electronic chemicals), and GB/T 11446.3 & 11446.9–2013 (electronic-grade water specifications). All factory calibrations are traceable to NIST Standard Reference Materials (SRM 1960 and SRM 2800 series) using certified polystyrene latex microspheres. The instrument supports GLP/GMP-aligned workflows through secure user authentication, immutable audit trails, and electronic record retention—facilitating regulatory inspections and internal quality audits.

Software & Data Management

The UP-200 ships with PULUODY V8.3 Particle Analysis Software (PC Edition and embedded firmware version), a modular application designed for laboratory and production-floor deployment. The software provides full control over acquisition parameters—including particle channel binning, dwell time, background subtraction, and coincidence correction algorithms—and supports customizable reporting formats: numeric concentration (particles/mL), ISO 4406 or NAS 1638 contamination codes, histogram distributions, time-series trend plots, and SPC-compatible CSV exports. Data security features include AES-256 encryption for stored databases, configurable password policies, session timeout enforcement, and timestamped audit logs recording all configuration changes, calibration events, and user logins. Remote monitoring is supported via HTTP/HTTPS API and Modbus TCP protocols, enabling seamless integration with DCS, SCADA, and MES platforms for centralized asset health monitoring and predictive maintenance scheduling.

Applications

The UP-200 serves as a critical control point in industries where particulate contamination directly impacts yield, reliability, and regulatory compliance. In semiconductor manufacturing, it monitors rinse tanks, megasonic cleaning systems, and UPW supply lines feeding photolithography and etch tools—detecting defects that cause gate oxide pinholes or wafer scratching. In pharmaceutical water systems, it verifies WFI loop integrity during routine sanitization cycles and supports Annex 1-compliant environmental monitoring programs. Additional applications include validation of filter integrity in bioprocess skids, qualification of cleaning-in-place (CIP) efficacy in medical device manufacturing, real-time assessment of slurry stability in CMP formulations, and contamination trending in high-voltage transformer oil reclamation systems. Its compact footprint and flexible mounting options (panel, wall, or pipe-clamp installation) make it suitable for both permanent inline deployment and portable offline verification.

FAQ

What particle size ranges does the UP-200 support out-of-the-box?
The standard configuration detects particles from 0.1 µm to 100 µm. Extended-range models covering 0.03–3000 µm are available upon request and require sensor recalibration and optical path optimization.
Is the UP-200 compatible with existing plant automation systems?
Yes. It supports native Modbus TCP, OPC UA (via optional gateway), and analog 4–20 mA output with programmable alarm thresholds—enabling direct integration into DCS, PLC, and SCADA architectures.
How is calibration traceability maintained?
Each unit undergoes factory calibration using NIST-traceable polystyrene latex standards (SRM 1960, SRM 2800), with calibration certificates documenting uncertainty budgets, environmental conditions, and operator credentials—all archived in the onboard audit trail.
Can the UP-200 operate unattended in hazardous locations?
While not intrinsically safe certified, the UP-200’s robust enclosure, wide operating temperature range (0–80 °C), and EMI-hardened electronics allow deployment in industrial settings such as electroplating lines and chemical dosing stations—provided local electrical safety codes are observed.
Does the system meet FDA 21 CFR Part 11 requirements for electronic records?
Yes. V8.3 software implements role-based permissions, electronic signatures, automated audit trails, and encrypted database backups—fully satisfying predicate rule requirements for regulated life science and pharmaceutical applications.