Guidelines / Manual
BTS256-LED Tester / Page 24
Version 01.2009-01
Specifications
BTS256-LED
Sensor Design
BiTec Sensor with fine photometric matching photodiode and 256 pixel CMOS photodiode array.
Integrated shutter for remote controlled offset compensation.
Integral Sensor
Integration time setting from 100µs to 6s. Nine (9) measurement ranges with correction range
transcending offset correction. 12Bit SAE ADC
Spectral response with fine CIE photometric matching
Luminous flux resolution 0.1mlm; Max luminous flux value 10000lm
Spectral Sensor
Integration time setting from 5.2ms to 60s. Shutter delay 100ms for open, 100ms for close
Spectral range 380 to 750nm. Pixel resolution 1.5nm. Other resolutions by interpolation or inte-
gration
Luminous flux measurement range (white light):
•
Minimum signal 100mlm [With 60s maximum integration time a flux of about 2mlm
(100mlm/60s) can be measured]
•
Maximum signal 2500lm (5.2ms integration time)
Wavelength peak +/- 1nm
Δ
x,
Δ
y +/- 0.005
Integrating Sphere
50mm diameter with ODM98 coating. Sealed window at sphere output port. Cone adapter with
rugged type ODP97 coating. Cone adapter measurement aperture diameter 10mm
White LED for use as auxiliary lamp. AUX LED delay 1ms. LED current peak max 350mA ca-
pacitance supported
Cone adapter ex-change effect /- 0.5%
Microcontroller
16Bit, 25ns instruction cycle time
Power
5VDC to 7VDC, 250mA peak during capacitance loading
Remote interface
RS232: 115200Baud, 8D, IS, N
Temperature
Operating: 10 to 30°C Storage: -10 to 50°C
Dimensions and Weight
160mm (6.3 in) L x 85mm (3.3) W x 60mm (2.4 in) H. Weight: 500g (1.1 lb)
xy DUT position error within cone adapter max. +/- 2%
z axis DUT position error within cone adapter max. +/-2% (1 to 11mm)
BTS256-LED sensitivity with add-on integrating spheres
UMBB-150
Integral sensor: 2.5mlm to 25000lm
1)
Spectral sensor: 41mlm to 65000lm
1)
Max measurement port diameter 50mm / 2 inch
UMBB-300
Integral sensor: 9mlm to 90000lm
1)
Spectral sensor: 150mlm to 230000lm
1)
Max measurement port diameter 75mm / 3 inch
UMBB-500
Integral sensor: 25mlm to 250000lm
1)
Spectral sensor: 410mlm to 650000lm
1)
Max measurement port diameter 125mm / 5 inch
1) Maximum measurable flux is not only limited by detector and amplifier dynamic range. Heat generated by the light source
under test can also limit measurement range. Stated specifications exclude range limitations caused by varying ambient con-
ditions!
