Luminance Meters              Topcon BM-9

 

The BM-9 is at once accurate, portable and affordable. As the entry level meter in the BM family you will appreciate its versatility. It comes standard with an RS-232C port and has available a large range of optional accessories, including an extension cable to allow the detector head to be detached from the body.

• Built in standard interface : RS-232 
• analogue output for continuous measurement
• selection of 3 acceptance angles ( 0.2°, 1°, 2°)

Manual Download

Catalog Download

 


Optional Accessories

 Specifications

Field of View

5°

Acceptance angles

2° / 1° / 0.2°

Measurement range setting

Auto-range / fixed range selectable

Photoreceptor

silicon photo-diode

Minimum spot diameter

2° - 10mm       1° - 5mm
0.2° - 1mm      

Measuring Distance

0.35m - infinity

Relative spectral sensitivity characteristics

Within 8% according to JIS 1609-1993

Analogue signal

0-3Vmax, 1mV/digit, response time approx 1 - 30ms.

Measurement range (cd/m2)

2° / 0.01 - 199 900
1° / 0.1 - 1 999 000
0.2° / 1 - 19 990 000

Accuracy

Luminance ±4% of reading
(Standard illuminant A, 23°C, > 10x lower measurement limit of range)

Power

9V battery, optional AC adapter

Dimensions

190 x 105 x 57mm display unit
130 x 74 x 33 detector head

Weight

200g display unit
250g detector head