Biaozhuo SUV-6T UV Radiometric Irradiance Standard Calibration System
| Brand | Biaozhuo |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | SUV-6T |
| Price | USD 9,200 (FOB Shanghai) |
Overview
The Biaozhuo SUV-6T UV Radiometric Irradiance Standard Calibration System is a metrologically traceable reference system engineered for the calibration and verification of UV irradiance meters, UV energy meters, and broadband or narrowband UV radiometers. It operates on the principle of spectral irradiance transfer using calibrated, NIST-traceable (or CNAS-accredited) reference detectors paired with spectrally characterized UV sources. The system complies fully with JJG 879–2015 “Verification Regulation for UV Radiometers” and supports traceability to national primary standards in China’s UV radiometry hierarchy. Designed for metrology laboratories, national institutes, and accredited calibration service providers, the SUV-6T enables quantitative validation of UV measurement instruments across seven defined spectral bands—UV-A, UV-B, UV-C, UV-A1, UV-365, UV-310, and UV-254—as specified in JJG 879–2015 and supplementary guidance from JJF 1525–2015 (Calibration Specification for Xenon Arc Weathering Test Chambers). Its architecture integrates detector-based irradiance standards with stabilized, spectrally filtered UV sources to ensure high reproducibility and long-term stability under controlled environmental conditions (20–25 °C, <60% RH).
Key Features
- Multi-band standard irradiance reference: Includes four calibrated SUV-series reference radiometers (SUV-A1, SUV-365, SUV-B, SUV-C), each equipped with three independent, factory-calibrated photodetectors and valid CNAS-accredited calibration certificates covering irradiance ranges from 1–1200 mW/cm².
- Spectral source suite: Comprises UVA/LED source (315–400 nm, λp = 365 nm ±5 nm), UVB fluorescent lamp assembly (280–320 nm, λp = 297 nm ±5 nm), and custom UVC low-pressure mercury lamp (200–280 nm, λp = 254 nm ±2 nm), all supplied with spectral power distribution (SPD) test reports.
- Narrowband options: Supports optional UV-365 (Δλ ≤10 nm), UV-310, UV-254, UV-340 (Δλ ≤15 nm), and UV-420 (Δλ ≤15 nm) configurations per JJF 1525–2015 requirements.
- Metrological performance: Meets Class I (Standard Grade) specifications per JJG 879–2015—including cosine response error ≤6.0%, nonlinearity ≤±1.0%, zero error ≤±1% FS, relative indication error ≤±6%, and resolution of 0.001 mW/cm² across three auto-ranging decades (0.001–1.999, 2.000–19.99, 20.00–199.9 mW/cm²).
- Robust architecture: Detector modules incorporate interference filters, diffusers, and silicon carbide or GaP photodiodes optimized for UV responsivity; electronics feature temperature-compensated amplification and digital signal processing for drift mitigation.
Sample Compatibility & Compliance
The SUV-6T system is compatible with handheld UV meters, benchtop radiometers, and integrated UV monitoring systems used in phototherapy device validation, UV curing process control, germicidal lamp certification, weathering test chamber qualification (per ISO 4892, ASTM G154, GB/T 16422), and laboratory UV source characterization. All reference detectors and sources are validated against JJG 879–2015 and referenced to China’s National Institute of Metrology (NIM) UV irradiance scale. Calibration certificates include uncertainty budgets (k=2) compliant with ISO/IEC 17025:2017. The system supports GLP-compliant workflows and can be integrated into audit-ready calibration management systems requiring documented traceability chains.
Software & Data Management
While the SUV-6T operates as a hardware-based standard system without embedded software, it is designed for interoperability with third-party calibration data acquisition platforms. Raw analog outputs (0–5 V or 4–20 mA) and digital RS-232 interfaces enable integration with LIMS or calibration software (e.g., MET/CAL, LabVIEW-based DAQ). Each calibration certificate includes spectral responsivity curves, angular response data, and correction factors for cosine error compensation. For regulated environments, the system supports 21 CFR Part 11-compliant electronic record generation when paired with validated software tools and audit-trail-enabled instrumentation controllers.
Applications
- Primary and secondary calibration of UV irradiance meters in national metrology institutes and accredited calibration labs.
- Verification of UV output stability in medical phototherapy devices (e.g., psoriasis treatment units) per IEC 62471 and GB 7247.1.
- Validation of UV intensity uniformity and spectral fidelity in UV curing ovens (UVA/UVB/UVC) for electronics, coatings, and adhesives manufacturing.
- Performance testing of UV disinfection systems, including low-pressure Hg lamps and UV-LED arrays, aligned with EPA UV Disinfection Guidance Manual protocols.
- Supporting material aging studies: calibration of irradiance sensors in xenon arc, fluorescent UV, and metal halide weathering test chambers per ISO 4892-2, ASTM G154, and GB/T 16422.3.
- Research applications in atmospheric UV monitoring, semiconductor lithography tool qualification, and optical filter characterization.
FAQ
Does the SUV-6T meet international metrological standards beyond JJG 879–2015?
Yes—the detector calibrations are traceable to NIM’s primary UV irradiance standards, which participate in APMP key comparisons (e.g., APMP.L-K8 UV Irradiance). While not CE-marked or UKCA-certified, its technical specifications align with ISO/IEC 17025 requirements for calibration laboratories.
Can the system be used for in-situ field calibration?
No—it is a laboratory-grade reference system requiring stable ambient temperature (20–25 °C), low humidity (<60% RH), and vibration isolation. Field verification requires portable transfer standards calibrated against the SUV-6T.
What is the recommended recalibration interval?
Annual recalibration is advised for all reference detectors and sources. UV lamps require spectral re-characterization every 200 operating hours or per manufacturer’s lamp life specification.
Is spectral mismatch correction supported?
Yes—each detector’s spectral responsivity curve is provided in tabular format (1 nm intervals) to enable mismatch error estimation per CIE TN 005:2018 guidelines when calibrating non-matching instrument response functions.
Are spare detectors and lamp modules available?
Yes—Biaozhuo supplies certified replacement detectors (SUV-A1, SUV-365, etc.) and lamp assemblies (UVA/LED, UVB, UVC) with individual calibration certificates and spectral test reports.
