Description
Main technical characteristics
| Illumination measurement range |
10 ÷ 200,000 lx |
| Basic relative error of illumination measurements |
± 8.0% |
| Range of indications of irradiance UV- (A + B) |
1 ÷ 200,000 mW / m² |
| Measurement range of irradiance UV- (A + B) |
10 ÷ 40,000 mW / m² |
| Basic relative error of irradiance measurements |
± 10.0% |
| Air temperature measurement range |
-30 ÷ +60 ° С |
| Basic absolute error of temperature measurements |
± 0.2 ° C |
Limits of additional absolute error of air temperature measurements at air temperature, ° С
from -30 to -10 inclusive
above -10 to +15 inclusive
above +25 to +45 inclusive
above +45 to +60 |
± 0.3 ° C
± 0.1 ° C
± 0.1 ° C
± 0.3 ° C |
| Measurement range of relative air humidity |
5 ÷ 98% |
| Basic absolute error of relative humidity measurements |
± 3.0% rel. ow. |
| Limits of the additional absolute error of relative humidity measurements when the air temperature changes by every 10 ° С in the range from +10 to +60 ° С |
± 3.0% rel. ow. |
| The limits of the additional relative error of the device when measuring optical quantities, due to a change in the sensitivity of the photometric head when the air temperature in the measurement zone changes for every 10 ° С (no more) |
± 3.0% |
Dimensions
| – signal processing unit (no more) |
130 x 70 x 30 mm |
| – photometric head with a probe (no more) |
230 x 48 x 55 mm |
| Device weight (no more) |
0,4 kg |
| Battery – Krona battery standard size |
9 in |
The difference in the function of the relative spectral sensitivity of the photodetector of the Luxmeter is corrected by a system of light filters to match the function of the relative spectral luminous efficiency of monochromatic radiation for daytime vision V (λ) according to GOST 8.332.

The effective reference plane of the Luxmeter coincides with the front plane of the cosine attachment of the photodetector
Substantial benefits
It combines the functions of a universal light meter, a UV radiometer with increased sensitivity, and a temperature and humidity meter. Faster response, improved performance, high precision platinum temperature sensor, low power consumption.
“TKA-KHANITEL” is a multifunctional measuring complex for research and operational control of microclimate parameters affecting objects of socio-cultural and artistic-historical significance in museums, archives, warehouses, for use in cultural and art institutions, school and local history clubs.
The instrument complex “TKA-KEEPER” is recommended for microclimate control in cultural and art institutions.
The device is designed to measure indoor microclimate and optical parameters:
- illumination in the visible region of the spectrum (380 ÷ 760) nm;
- irradiance in the spectral range (280 ÷ 400) nm – UV- (A + B) (with increased sensitivity);
- air temperature;
- relative humidity.
Контроль микроклимата в учреждениях культуры и искусства (с повышенной чувствительностью в области УФ-излучения).