“TKA-KEEPER”
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.
- Operation manual “TKA-KEEPER” (* .pdf)
- Factory calibration in accordance with MP-242-1969-2016, approved by the State Research Center for SI “VNIIM im. DI. Mendeleev ”November 26, 2016