Junray ZR-6011 Precision Aerosol Photometer for Rapid Calibration of Aerosol Photometers

Overview

The Junray ZR-6011 Precision Aerosol Photometer is a metrologically traceable calibration instrument engineered specifically for the rapid verification, calibration, and value traceability of aerosol photometers used in cleanroom certification, HVAC filter integrity testing (e.g., HEPA/ULPA), and airborne particle monitoring applications. Based on Mie scattering theory, the ZR-6011 generates stable, monodisperse or polydisperse aerosol clouds with known optical cross-sections and mass concentrations, enabling quantitative photometric response evaluation across the 0.1–10 µm particle size range. Unlike generic light-scattering sensors, the ZR-6011 is designed as a primary reference standard—its measurement chain is anchored to gravimetric reference methods per JJF 1800–2020, the Chinese national calibration specification for aerosol photometers. This ensures full compliance with ISO 14644-3, IEST-RP-CC001.4, and USP requirements for filter testing instrumentation qualification.

Key Features

• Long-life, temperature-stabilized 650 nm laser diode source with <±0.5% output power stability over 10,000 hours.
• Multi-aerosol compatibility: validated for DEHS, PAO-4, corn oil, sodium chloride, and sucrose aerosols—enabling calibration under application-relevant challenge agents.
• Integrated aerosol homogenization chamber (patented internal mixing geometry) ensures uniform spatial distribution (<±2.5% CV) and temporal stability (<±1.0% drift over 30 min) of generated aerosol clouds.
• High-sensitivity photomultiplier tube (PMT) detector with linear dynamic range spanning 0.001–100 mg/m³ (mass concentration) and 0.01–10⁶ particles/cm³ (number concentration), calibrated against NIST-traceable reference filters.
• Segmented calibration mode: user-accessible calibration point configuration (up to 8 segments) supporting non-linear photometer response mapping—critical for instruments operating across wide concentration ranges.
• Onboard data logging: stores ≥100,000 timestamped measurement records with metadata (aerosol type, flow rate, temperature, RH, operator ID).
• Embedded self-diagnostic system monitors optical path contamination, PMT gain drift, and laser alignment; triggers audible/visual alerts and halts operation if thresholds are exceeded.
• Compact form factor (320 × 280 × 180 mm) and integrated rechargeable Li-ion battery support field-deployable calibration in cleanrooms, laboratories, and mobile validation units.

Sample Compatibility & Compliance

The ZR-6011 supports aerosol generation via thermal, pressure-driven, or vibrating orifice systems (external), and is fully compatible with standard ISO 21501-4-compliant aerosol generators. Its calibration methodology adheres strictly to JJF 1800–2020, which mandates gravimetric reference standards for mass concentration traceability and defines performance criteria for linearity, repeatability (≤3.0% RSD), and detection limit (0.0005 mg/m³). The instrument’s uncertainty budget is documented per GUM (JCGM 100:2008) and includes contributions from PMT quantum efficiency, laser power drift, aerosol density assumptions, and filter weighing precision. It satisfies GLP and ISO/IEC 17025 documentation requirements for calibration laboratories performing accredited photometer calibrations.

Software & Data Management

The ZR-6011 operates via embedded Linux-based firmware with a 5-inch capacitive touchscreen interface. Raw and processed data are exportable in CSV and PDF formats via USB 2.0 port or optional Wi-Fi module. All calibration events—including operator logins, parameter changes, and audit trail entries—are time-stamped and digitally signed, meeting FDA 21 CFR Part 11 requirements for electronic records and signatures when paired with Junray’s optional calibration management software (ZRCMS v3.2). Data integrity is enforced through write-once storage architecture and automatic checksum validation upon file transfer.

Applications

• Primary calibration of portable and benchtop aerosol photometers in metrology labs and national institutes.
• Routine verification of photometer linearity and zero drift prior to cleanroom filter leak testing (per ISO 14644-3 Annex B).
• Validation of photometer response across multiple aerosol types for pharmaceutical aseptic processing environments (USP , EU GMP Annex 1).
• Development and verification of new photometer designs by OEMs requiring traceable reference data.
• Training and proficiency testing for certified cleanroom technicians and ISO 17025 assessors.

FAQ

Does the ZR-6011 require annual recalibration by the manufacturer?
No—users may perform in-house segmented calibration using gravimetric reference filters and traceable balance systems, provided procedures comply with JJF 1800–2020 Section 6.2.
Can the ZR-6011 be used to calibrate photometers measuring at 405 nm or 266 nm wavelengths?
Yes—the PMT detector is spectrally characterized from 300–700 nm; wavelength-specific correction factors are supplied in the calibration certificate.
Is the instrument compliant with international cleanroom standards such as ISO 14644-3?
Yes—it provides the metrological foundation required to demonstrate photometer fitness-for-purpose per ISO 14644-3:2019 Clause 8.3.2.
What documentation is provided with each unit?
Each ZR-6011 ships with a factory calibration certificate (NIST-traceable references), JJF 1800–2020 conformance report, uncertainty budget, user manual, and GLP-compliant calibration logbook template.
Is remote firmware update supported?
Yes—via secure HTTPS-based OTA updates through Junray’s authorized service portal; all updates undergo cryptographic signature verification.