UPRTek MK350N Plus Portable Spectrometer
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (Taiwan) |
| Model | MK350N Plus |
| Pricing | Upon Request |
Overview
The UPRTek MK350N Plus is a handheld, field-deployable spectrometer engineered for high-fidelity optical characterization of visible light sources (380–780 nm). It employs a CMOS linear image sensor with 1 nm wavelength resolution and a nominal spectral bandwidth (FWHM) of ~12 nm, operating on the principle of fixed-grating dispersion spectroscopy. Unlike filter-based photometers, the MK350N Plus captures full spectral power distribution (SPD) in real time, enabling traceable, physics-based photometric and colorimetric calculations—including CIE 1931 xy, CIE 1976 u’v’, correlated color temperature (CCT), luminous flux (lux), and chromaticity deviations (Δu, Δv, Δuv). Its integrated flicker detection module complies with IEEE 1789-2015 and IEC TR 61547-1 methodologies for percent flicker and flicker index quantification—critical for evaluating LED lighting safety and visual comfort in human-centric lighting design, architectural lighting validation, and display backlight assessment.
Key Features
- Real-time spectral acquisition with 1 nm data interval and ±1 nm wavelength repeatability under stable illumination
- High-precision colorimetry: ±0.0025 CIE 1931 x,y coordinate accuracy; ±0.0005 x,y repeatability
- Dual-mode operation: Standalone measurement via 3.5″ resistive touchscreen LCD (320×240) or remote control via WiFi-enabled iOS/Android app (uSPECTRUM)
- Calibrated cosine correction optics optimized for angular response per CIE S 023/E:2013 standards
- Embedded cali-II multi-point spectral calibration system for long-term stability across temperature and aging conditions
- On-device computation of 40+ photobiological and photometric indices—including CRI (Ra, R1–R15), TLCI, CQS, S/P ratio, GA, duv, PPF (photosynthetic photon flux) across five spectral bands (UV, B, G, R, NIR), and flicker metrics (% flicker, flicker index)
- SD card logging (FAT32) with export to Excel (.xlsx) and BMP image formats; USB 2.0 interface for firmware updates and bulk data transfer
- Built-in rechargeable 2500 mAh Li-ion battery supporting >8 hours continuous operation at typical exposure settings (6–1000 ms)
Sample Compatibility & Compliance
The MK350N Plus is designed for non-contact measurement of broadband and narrowband visible light emitters—including LED modules, OLED panels, fluorescent tubes, HID lamps, and horticultural lighting systems. Its spectral response conforms to CIE Publication No. 127:2007 for LED measurement geometry and meets essential electromagnetic compatibility requirements per CE (EN 61326-1) and FCC Part 15 Subpart B. NIST-traceable calibration reports are provided with each unit, supporting ISO/IEC 17025-compliant laboratory workflows. While not certified for clinical or regulatory submission per FDA 21 CFR Part 11, its audit-ready data logs—including timestamped spectra, metadata, and operator ID fields—support GLP-aligned documentation practices in QC environments.
Software & Data Management
The device operates natively with the uSPECTRUM PC software (Windows/macOS), which provides advanced spectral analysis, batch processing, comparative overlay, and customizable report generation (PDF/Excel). The companion mobile application enables live streaming, cloud-synced project archiving, and collaborative annotation—ideal for field technicians performing lighting audits across multiple sites. All spectral datasets include embedded EXIF-style metadata: integration time, ambient temperature, instrument serial number, calibration date, and user-defined tags. Raw SPD files adhere to JIS Z 8723-1996 spectral data format conventions, ensuring interoperability with third-party tools such as MATLAB, Python (using NumPy/Pandas), and lighting simulation platforms (e.g., DIALux, AGi32).
Applications
- LED product development and binning verification in manufacturing QA labs
- Architectural lighting commissioning and daylight harvesting system validation
- Horticultural lighting spectral profiling for PAR (400–700 nm) and extended PPF band analysis
- Flicker compliance testing for consumer electronics displays and automotive interior lighting
- Educational use in optical physics and photometry laboratories
- Field service diagnostics for lighting retrofits and energy efficiency assessments
- Research-grade spectral monitoring in museum conservation (light-induced degradation studies)
FAQ
Is the MK350N Plus suitable for measuring UV or IR radiation beyond 380–780 nm?
No. The MK350N Plus is strictly limited to the visible spectrum (380–780 nm) and does not detect ultraviolet (780 nm) wavelengths.
Does the device support automated calibration against reference standards?
It includes factory-applied NIST-traceable calibration but lacks on-site user-replaceable calibration sources. Recalibration must be performed by authorized UPRTek service centers.
Can multiple MK350N Plus units be synchronized for spatially distributed measurements?
No native multi-unit synchronization is supported. However, time-stamped data from separate devices can be aligned post-acquisition using GPS or network time protocol (NTP)-synchronized timestamps via the uSPECTRUM software.
What file formats are generated during data export?
Spectral data exports as .xlsx (with SPD, calculated indices, and metadata) and .bmp (spectral plot visualization); no proprietary binary formats are used.
Is firmware upgrade capability available over WiFi?
Firmware updates require connection via USB to the uSPECTRUM PC software; WiFi is reserved for remote measurement control and data streaming only.
