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Spectroradiometer “TKA-Spectr”

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Spectrophotometer “TKA-Spectr” (PAR)
Spectrocolorimeter “TKA-VD”

Spectroradiometer “TKA-Spectr”

PRICE:

PRICE:

180900 руб.

TU 26.51.53-005-16796024-2020.

  • Spectroradiometer “TKA-Spectr”
  • Cosine corrector
  • Power adapter with USB output
  • PC communication cable
  • Storage medium with software
  • Manual
  • Passport
  • Plastic case
  • Transport container

SRD  [ W / (m 2 · sr · nm) ] or  SID [ W / (m 2 · nm) ]  in the range 390-760  nm ,
chromaticity coordinates  CIE 1931, 1964, 1976,
correlated color temperature  [ K ] ,
color rendering index  R a ,  CRI and the CQS,
radiance  [ W / m ]  or  irradiance  [ W / m ] in the range of 390-760  nm ,
PAR radiance  [ mol / (m2 · sr · s)]  or  PAR irradiance (PPFD)  [ µmol / (m 2 · s)  ] in the range of 400-700  nm ,
luminance  [ cd / m² ] or  illuminance  [ lx ].
Color Touch Screen 4.3  inches . USB / Bluetooth. Built-in battery 3.7  in .
Factory calibration.

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Description

Instrument complete set

  • Spectroradiometer “TKA-Spectr”
  • Cosine corrector
  • Power adapter with USB output
  • PC communication cable
  • Flash drive with software
  • Manual
  • Passport
  • Plastic case
  • Transport container

Main technical characteristics

 Measurement mode Continuous / Pause
 Spectral range,  nm 390 ÷ 760
 Resolution / discreteness,  nm  (no more) 10 / 0.4
 Measurement ranges:
spectral density of radiance,  W / (sr m 2 nm)
spectral density of irradiance,  W / (m 2 nm)
chromaticity coordinates x, y in the MCO 1931 systemgeneral color rendering index R a of  self-luminous objects		 10 · 10 -6 ÷ 1.0
10 · 10 -5+  ÷ 0.5
x = 0.004 ÷ 0.734;
y = 0.005 ÷ 0.834
1.0 ÷ 100.0
 Limits of the permissible value of the relative measurement error of the SPEY (or SPEO) ,% ± 5.0
 Limits of permissible absolute measurement error on the chromaticity coordinate scale, abs. units, for self-luminous objects ± 0.020
Accepted limits of the absolute error measure correlated color in the temperature range (for white light sources):
• from 2000  K  to 2300 K
• more than 2300  K  to 3300  K
• more than 3300  K  to 5100  K
• more than 5100  K  up to 7,200  K
• more than 7,200  K  up to 10,000  K		  

± 50
± 100
± 200
± 500
± 1000
 Limits of permissible absolute error in measuring the
general color rendering index of self-luminous objects ΔR a		 ± 3.0
 The limits of the additional relative error of the
spectroradiometer when measuring energy quantities, due to the
change in the sensitivity of the photodiode array when
the air temperature changes by every 10  ° С  in the range from 0 to +40  ° С,%		 ± 1.0
 Indication ranges:
luminance of continuous,  cd / m 2
illuninance of continuous radiation,  lx
radiance of continuous,  W / (m 2 sr)
irradiance of continuous radiation,  W / m 2
correlated color temperature,  K
PAR radiance in the range of 400 ÷ 700 nm,  μmol / (m 2 s sr)
PAR irradiance in the range 400 ÷ 700 nm,  μmol / (m 2 s)		 0.1 ÷ 60 000
1 ÷ 200 000
5 · 10 -4  ÷ 1000
1 · 10 -4  ÷ 2000
1600 ÷ 50 000
0.01 ÷ 500
0.1 ÷ 2000
 Calculated parameters:
weighted radiance in the range 390 ÷ 760  nm ,  W / (m 2 sr)
weighted irradiance in the range 390 ÷ 760  nm ,  W / m 2
color coordinates in MCO systems
chromaticity coordinates in MCO systems
dominant wavelength λ s ,  nm
color rendering indices of self-luminous objects
difference between brightness in conditions of twilight and daytime vision
color difference with an arbitrary reference source		 blue light L B , burn hazard L R
blue light E B , burn hazard E R
1931 XYZ and 1964 XYZ
1964 XYZ, 1976 u’v ‘and 1976 L * a * b *CRI и CQSS/PΔE*ab
 Receiver Polychromator, 1024-pixel array of silicon photocells
 The minimum diameter of the photometric area,  mm 15
 Signal exposure time,  s 0.007 ÷ 4
 Measurement time,  s , no more 10
 Maximum output power of Bluetooth, class 2,  mW 2.5
 The maximum amount of supported micro SD,  GB  2.0
 Time of continuous operation of the spectroradiometer,  h , not less 8
Spectroradiometer service life,  years 7

Mechanical data of the device

  • Ambient temperature: 0 to +40 ° C
  • Weight of the device with a power supply: no more than 1.0 kg
  • Overall dimensions: no more than 250 (L) x 100 (B) x 80 (H) mm
  • Interface: USB / Bluetooth
  • Power supply: built-in battery 3.7  The

On the underside of the device there is a  threaded socket  (1/4 ″)  for mounting on a tripod

The devices are designed to measure radiometric (SPEYA, SPEO) and colorimetric (chromaticity coordinates, correlated color temperature, color rendering indices) characteristics of self-luminous objects in the visible spectral region with subsequent processing, recording and printing of the information received in graphic and digital form.

The device is recommended for research at the design stage of new LED greenhouse phytolamps and for assessing the energy efficiency of a lighting device during operation.

In world practice, an agreement has been adopted that allows us to define and measure the PAR irradiance as a falling quantum flux in the range from 400 to 700  nm   without involving any experimental  plant reactions . For a quantitative transition from units of energy power to units of luminous power, we use a standard expression (see “Lighting measurements” by MG Kozlov, KA Tomsky, p.37).

Structurally, the spectroradiometer is made as a single unit. There is a lens on the front end cap of the body, the angle of view is 2  degrees  (BRIGHTNESS mode).

Additionally, the  device is equipped with a cosine corrector. The aperture of the cosine corrector is 180 degrees  and eliminates a number of optical-geometric matching problems (LIGHT mode). Direct measurements in two modes. 

Thanks to a careful selection of the functions used and the displayed parameters, it was possible to minimize the number of various menus and screens. The size of the displayed characters allows you to confidently read the instrument readings up to one meter.

 

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