TOPCON BM-7 Brightness Meter from Japan

NegotiableUpdate on 04/20

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Nature of the Manufacturer: Producers

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Overview

Low power LCD displays and large capacity lithium batteries can not only be used in laboratories, but also for field observations.

Product Details

Beijing Huayi Tongtai Technology Co., Ltd. specializes in the sales of imported analytical and testing instruments. We provide a wide range of products, competitive prices, and excellent after-sales service.

Low power LCD displays and large capacity lithium batteries can not only be used in laboratories, but also for field observations.

JapanTOPCONtopconBM-7luminance meterProduct Introduction:

BM-7 is a non-contact point of sight color brightness meter, commonly used for photometric testing in LED/LCD display screens, backlight sources, traffic signals, motor vehicle license plate lights, lighting engineering, film and television, construction and other fields. Fixed measurement field of view angle of 1 °.
JapanTOPCONBM-7luminance meterProduct Features:
The use of highly stable and spectral response curve strictly matched three color photoelectric detection components, as well as embedded microcontroller systems, low-power LCD displays, and large capacity lithium batteries, can not only meet the needs of laboratory use, but also be used for field observation. The instrument is equipped with a large aperture, high-quality telescope, which can measure the brightness and color of distant objects. After installing an auxiliary mirror, it can measure small objects at close range.
JapanTOPCONBM-7luminance meterProduct Technical Parameters:

optical system	f=85mm， Observation field of view: 8 °
Measure field of view angle	1°
measure distance	0.4m~∞ (with the addition of an auxiliary mirror, it can measure the brightness and color of small objects or light sources at close range non-contact aiming points)
Very small diameter measurement	Φ 6mm (very small after adding auxiliary mirror, Φ 0.8mm)
Measurement function	Brightness Y, chromaticity coordinates (x, y), (u ', v'), color temperature Tc, tristimulus values (X, Y, Z), color difference (Duv)
Brightness (Y) measurement range	0.01cd/m2~320,000cd/m2
Brightness accuracy	Superior to level one (tested according to our metrological verification regulations JJG211-2005 method)
Color temperature (Tc) measurement range	1500K～25000K
Color measurement accuracy	± 0.005 (measurement conditions: brightness not less than 10cd/m2, standard A light source);
	± 0.02 (measurement condition: brightness not less than 10cd/m2, JJG211-2005 transmissive standard color plate)
communication port	RS-232
power supply	AC 220V， Or CR 123A battery
other	Comes with data storage function (512 sets), or stores, analyzes, and prints data on the computer