Z850 SpectraPen is a handheld spectrometer with a touch screen display, powered by a Li-ion rechargeable battery, and does not require a PC to operate. The light spectrum of any light source is instantly displayed as spectral traces on the SpectraPen touch screen display. Optional fiber optic cable is also available for the standard model. The Z850-LM model contains a light meter (a cosine corrector) so light spectrum measurements are combined with light intensity measurements (PAR).

The SpectraPen is available in one of the two versions: Z850 standard or Z850-LM. These two versions are available in either UV/VIS – measures in the 340 to 780 nm range OR NIR – measures in the 640 to 1050 nm range. The Z850-LM version is also available with the cosine corrector positioned in the horizontal (H) – facing up orientation or Vertical (V) facing forward orientation. Both Z850 and Z850-LM come with an integrated GPS module.

Features

Handheld and lightweight
Precise Radiometric Calibration (Z850-LM)
Light Parameter Calculations
Integrated GPS module
Wide spectral response range: UV/Vis: 340 – 780 nm or NIR: 640 – 1050 nm
No PC needed for operation
Intuitive touch-screen use
Flexibility in measurement setups
Battery-powered
Optional Tripod Mount
USB connectivity for charging and data downloading
Integrated GPS module

Applications

Light Radiation Monitoring
Environmental Monitoring
Artificial Lighting Monitoring
Color Measurements
Light Source Testing and Quality Control
Reflectance, transmittance, absorption of various samples (external sample holder and light source needed)
Agriculture and Ecology

Specifications of Z850

Technical Specification for Z850:

Optical entrance: SMA 905 to 0.22 numerical aperture single strand optical fiber
Spectral response range: 340nm – 780nm or 640nm – 1050nm
Spectral response half width *: 9 or 8
Spectral stray light *: -30 dB
Wavelength reproducibility: +/- 0.5 nm
Integration time: 5 ms – 10 s
Number of pixel: 256
Dimension of pixel: 0.5 x 15.8 mm
Touch screen: 240 x 320 pixel; 65535 colors
Memory capacity: 32 MB (up to 4000 measurements)
System data: 16 bit AD conversion
Dynamic range: High gain- 1:4300; low gain- 1:13000
Communication: USB
Dimensions: 15 x 7.5 x 4 cm
Weight: 300 g
Case: Splash-proof
Battery: Li-ion; rechargeable via USB port of a PC
Battery life: 48 hours (continuous operation)
Operating temperature: 0 to +50 ºC
Storage temperature: -20 to +70 ºC
Warranty: 1 year parts and labor

Specifications of Z850-LM

Technical Specifications of Z850-LM

Optical Entrance: Cosine corrector
FWHM Bandwidth: 7 nm
Spectral Response Range: UV/VIS version: 340 nm – 780 nm, NIR version: 640 nm – 1050 nm
Spectral Response Half Width: *9
Spectral Straylight: **-30 dB
Wavelength Reproducibility: +/- 0.5 nm
Integration Time: Automatic: 5 ms to 10 s
Number of Pixel: 256
Dimension of Pixel: 0.5 x 15.8 mm
Touch Screen: 240 x 320 pixel; 65535 colors
Memory Capacity: 16 Mb (up to 4000 measurements)
System Data: 16 bit AD conversion
Noise: 15 LSB RMS
Communication: USB
Dimension: 18 x 7.5 x 4 cm
Weight: 300 g
Case: Splash-proof
Battery: Li-ion; rechargeable via USB port of a PC
Battery Life: 48 hours (continuous operation)
Operating Temperature: 0 to +50 ºC
Storage Temperature: -20 to +70 ºC
Warranty: 1 year parts and labor

References

DĄBROWSKI P., PAWLUŚKIEWICZ B., BACZEWSKA A. H. ET AL. (2015): Chlorophyll a fluorescence of perennial ryegrass (Lolium perenneL.) varieties under long term exposure to shade. Zemdirbyste-Agriculture. Volume 102, Pages 305-312. DOI 10.13080/z-a.2015.102.039
DĄBROWSKI P., CETNER M. D., SAMBORSKA I. A. ET AL. (2015): Measuring light spectrum as a main indicator of artificial sources quality. Journal of Coastal Life Medicine. Volume 3, Pages 398-404. DOI:10.12980/JCLM.3.2015J5-25