UPRtek MK350N PLUS User Manual And Warranty page 19

Sensor CMOS linear image sensor
Spectral Bandwidth Approximately 12 nm（half bandwidth）
Receptor Size Ø 6.6 ± 0.1 mm
Cosine Correction refer Figure 1.
Measurement Range 5 ~ 70000 Lux
Wavelength Range 380 ~ 780 nm
Integration Time Range 6 ~ 1000 ms
Capture Function One time / Continuous
Integration Mode Auto / Manual
Measuring Modes 1. Basic Value Mode
2. Spectrum Graph Mode
3. CIE 1931 Chromaticity Coordinates
4. CIE 1976 U.C.S Chromaticity Coordinates
Measuring Capabilities 1. Illuminance / Lux
2. Spectral Irradiance
3. C.I.E. Chromaticity Coordinates
(1) CIE 1931 x,y Coordinates
(2) CIE 1976 U.C.S u',v' Coordinates
(3) CIE 1931 XYZ color space
4. Peak Wavelength
5. Delta uv.
6. △x , △y , △u' , △v'.
7. Correlated Color Temperature ( CCT )
8. Color Rendering Index ( Ra / R1~R15 )
9. Color Quality Scale ( CQS )
10. TLCI
11. Flicker Percentage
12. SP Ratio ( Scotopic and Photopic )
13. Foot Candle
Digital Resolution 16 bits
Dark Calibration
Yes
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Stray Light -25 dB max.
Wavelength Data Increment 1 nm
*2
Wavelength Reproducibility
± 1 nm
Illuminance Accuracy
Color Accuracy
Illuminant A @ 2856K
Color Repeatability
at 20000 Lux
CCT Accuracy
CRI Accuracy @ Ra
Display 3.5" LCD 320X240 Touch Panel
Max. Files ≒ 2000 Files @ 2GB SD Card
Battery Operation Time ≦ 5 hours / Fully Charged
Battery 2500 mAh / Rechargeable Li-ion Battery
Data Output Interface SD Card (SD2.0, SDHC/above 1GB~up to 32GB) / USB 2.0
Data Format Compatible Excel / JPG Data Format
Dimensions
144.2 x 78 x 24 mm ( H x W x D )
Weight(with Battery)
250 g ± 20 g
Operating Temperature
0 ~ 35 ℃
Storage Temperature
-10 ~ 40 ℃
Language Selection English / Traditional Chinese / Simplified Chinese /
Japanese / Spanish / German / French / Italian / Russian
*1 : Use the input of 550nm single-frequency and measurement the range of
optical ± 40nm.
*2 : Input source must be a stable light source.
The company reserves the right to change product specifications, if it has any changes will
not give any notice.
Figure 1：Cosine Correction
*1
± 5%
± 0.0025 in CIE 1931 x,y
± 0.0005 in CIE 1931 x,y
± 2%
± 1.5%
Ideal value
MK350N PLUS
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