UPRTek MK350S Portable Spectrometer
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (Taiwan) |
| Model | MK350S |
| Pricing | Available Upon Request |
Overview
The UPRTek MK350S Portable Spectrometer is a handheld, field-deployable optical measurement instrument engineered for precision photometric and colorimetric analysis of visible light sources (380–780 nm). Based on CMOS linear sensor technology with 12 nm spectral resolution (FWHM), it applies calibrated spectral radiometry principles to quantify illuminance, correlated color temperature (CCT), chromaticity coordinates (CIE 1931 x,y and CIE 1976 u′,v′), color rendering index (CRI Ra and R1–R15), dominant/peak wavelength, spectral power distribution (SPD), and photosynthetic photon flux (PPF, 400–700 nm). Its integrated cosine-corrected optical input (Ø6.6 ± 0.1 mm) ensures compliance with photometric measurement geometry per CIE S 023/E:2013 and IES LM-79-19 Annex A. Designed for on-site use in lighting validation, LED manufacturing QA, architectural lighting design, museum conservation, and horticultural lighting assessment, the MK350S operates independently of external computers—enabling real-time, traceable, and standards-aligned measurements in laboratories, production floors, or ambient environments.
Key Features
- Self-contained operation with 4.3″ capacitive touchscreen (800 × 480) and intuitive multi-mode interface—no PC required for core measurement functions.
- 16-bit analog-to-digital conversion with ±1 nm wavelength repeatability (under stable illumination) and <±0.0005 CIE 1931 x,y chromaticity repeatability.
- Comprehensive spectral analysis suite: SPD visualization, CCT classification per ENERGY STAR® SSL Program C78.377, CRI evaluation (Ra, R1–R15), and duv/Purity metrics.
- Illuminance mapping mode generates spatially referenced lux distribution overlays—optimized for interior lighting layout verification in offices, libraries, and exhibition spaces.
- Automated continuous measurement with timestamped SD card logging (up to ~2000 records on 2 GB card); supports dual-data comparison between live capture and archived files.
- Quality control workflow integration: configurable pass/fail thresholds for CCT, illuminance, and CRI; visual grading against CIE 1931 chromaticity diagrams.
- Wireless capability via integrated 802.11 b/g/n Wi-Fi module for remote triggering, live data streaming, and over-the-air firmware updates.
- Robust portable architecture: 250 g (with battery), IP54-rated enclosure, 4-hour battery life (2500 mAh Li-ion), and operating range of 0–35 °C.
Sample Compatibility & Compliance
The MK350S is validated for quantitative analysis of broadband and narrowband visible light emitters—including white LEDs, OLEDs, fluorescent lamps, halogen sources, and horticultural grow lights. Its spectral response adheres to CIE 1931 photopic luminosity function V(λ) with stray light suppression ≤−25 dB (measured at ±40 nm from 550 nm reference). Illuminance accuracy is certified to ±5% against Standard Illuminant A (2856 K) at 20,000 lux. Chromaticity uncertainty is ±0.0025 in CIE 1931 x,y space. The device supports GLP-compliant workflows through timestamped, non-editable SD card storage (Excel .xlsx and JPEG export), and its firmware architecture enables audit-ready data integrity—aligning with ISO/IEC 17025 requirements for calibration laboratories and FDA 21 CFR Part 11 considerations where electronic records are subject to review.
Software & Data Management
The MK350S operates natively without host software but integrates seamlessly with UPRTek’s proprietary mobile applications (iOS and Android) for remote control, real-time spectrum visualization, and cloud synchronization. All measurements are stored as structured CSV and image files on removable SD cards (up to 8 GB supported). Export formats include Microsoft Excel (.xlsx) for statistical analysis and JPEG for report embedding. Firmware version 1.3.5+ (required for MK350N/S interoperability) includes secure metadata tagging (date/time, GPS if enabled via paired smartphone, operator ID, and instrument serial number). Data export paths comply with ISO 9001 documentation traceability requirements, and optional Wi-Fi logging supports centralized database ingestion for enterprise-level quality management systems (QMS).
Applications
- LED manufacturing: In-line CCT binning, CRI verification, and spectral stability monitoring per JEDEC JESD51-50.
- Architectural lighting design: Illuminance uniformity mapping, glare assessment, and daylight harvesting system commissioning.
- Museum & archival lighting: UV-free LED validation, spectral irradiance profiling to prevent pigment degradation (per ISO 18937).
- Horticulture: PPF quantification and spectral balance evaluation for photobiological efficacy (PAR 400–700 nm).
- Education & research: Undergraduate optics labs, color science instruction, and field-based environmental light studies.
- Regulatory compliance: Pre-audit verification for ENERGY STAR®, DLC, and IEC 62471 photobiological safety assessments.
FAQ
What spectral range and resolution does the MK350S support?
The MK350S covers 380–780 nm with 1 nm data interval and ~12 nm full-width-at-half-maximum (FWHM) optical resolution.
Is the device compliant with international photometric standards?
Yes—it conforms to CIE S 023/E:2013 for spectral irradiance measurement geometry, IES LM-79-19 Annex A for cosine correction, and uses V(λ)-matched CMOS detection per CIE 1931.
Can measurement data be exported for regulatory reporting?
Yes—structured Excel (.xlsx) and JPEG files are generated with embedded timestamps, instrument ID, and operator metadata, supporting ISO 9001 and GLP documentation protocols.
Does the MK350S support wireless data transfer?
Yes—integrated 802.11 b/g/n Wi-Fi enables remote control, live spectrum streaming, and firmware updates via UPRTek’s iOS/Android apps.
What is the illuminance measurement range and accuracy?
20–70,000 lux, with ±5% accuracy referenced to Standard Illuminant A at 20,000 lux (per manufacturer calibration certificate).
How is traceability maintained during field use?
All measurements include automatic time/date stamping, SD card write-protection options, and non-modifiable file structures—facilitating audit readiness per ISO/IEC 17025 Clause 7.5.2.
