PCE Instruments CRM 40 Light Meter/Photometer 150,000Lux

Model # CRM 40

With the photometer or spectrophotometer PCE-CRM 40, important photometric factors in the field of light measurement can be determined. These include the tristimulus values of XYZ, the u´ and v´ color location coordinates according to CIE 1976, and the xy color location coordinates according to CIE 1931.
Moreover, further color statistics are measured as absolute values and differences. The user can determine the dominant wavelength within the sensitivity range of the spectrophotometer, which is 360 to 780 nm, as well as the color density (Pe) and the correlated color temperature (CCT) in Kelvin.
Also, the spectrophotometer can measure the illuminance in lux (lx) or foot-candle (fcd) as well as the light flux in lumens (lm) and show the color location in the RGB color space.

With the photometer or spectrophotometer PCE-CRM 40, important photometric factors in the field of light measurement can be determined. These include the tristimulus values of XYZ, the u´ and v´ color location coordinates according to CIE 1976, and the xy color location coordinates according to CIE 1931. Moreover, further color statistics are measured as absolute values and differences. The user can determine the dominant wavelength within the sensitivity range of the spectrophotometer, which is 360 … 780 nm, as well as the color density (Pe) and the correlated color temperature (CCT) in Kelvin.
Also, the spectrophotometer can measure the illuminance in lux (lx) or foot-candle (fcd) as well as the light flux in lumens (lm) and show the color location in the RGB color space. Due to the ergonomic single-handed operation, the large display, memory, data interface and software, measurements with the spectrophotometer can be carried out quickly and the results are reproducible. The test results can be recorded by means of the software. Its specifications make the spectrophotometer perfectly suitable to classify and optimize lighting installations and conditions in various fields of application.
Measurement of colour temperature
Lux measurement up to 150 kLux
Representation of Tristimulus and RGB
Ideal for LEDs
SD memory
Colour LCD

Measurement functions	Tristimulus values: XYZ Chromaticity: Ev xy, Ev u’v’ Correlated colour temperature: Tc Colour difference: Δ (XYZ), Δ (Evxy ), Δ (Evuv ), ΔE v ΔTc Δuv Chromaticity coordinates: ICE1931 (x, y), ICE1976 (u, v) Dominant wavelength: λd Colour fastness: Pe Luminous flux: Φ, RGB parameter, colour chart, maximum recording and indicator
Measuring range	0.1 … 150,000 lx 0.01 … 15000 fcd Ev: 5 lx / 0.5 fcd or above in four automatically selected ranges (lx or fcd is switchable)
Spectral range	360 … 780 nm
Relative spectral sensitivity	Based on CIE standard X (λ), y (λ), and Z (λ), deviation within 6% (f1 ‘) of CIE spectral luminous efficiency V (λ)
Cosine correction	Ev: < 3% (f2)
Accuracy	Ev : ± 5 % ± 1 digit of displayed value Xy: ± 0.003 lx (at 500 lx, standard A)
Repeatability	Ev : ± 0.5% + 1 digit (2σ) xy: ± 0.0005 (measured at 500 lx, standard A)
Temperature drift	Ev : ± 3% ± 1 digit of the indicated value xy: + -0.003
Response time	0.5 second (for continuous measurement)
Sensor type	Silicon photocell
Interface	USB Slot for SD card
Display	3.2″ color LCD
Operating conditions	-10 … 40°C / 14 … 10°F <85% RH
Storage conditions	-20 … 40°C / -4 … 104°F <85% RH
Power supply	2200-mAh rechargeable lithium-ion battery
Battery life	Min. 12 hours
Dimensions	210 x 80 x 35 mm / 8.2 x 3.1 x 1.37 in
Weight	300 g / < 1 lb including battery