Guidelines / Manual
BTS256-LED Tester / Page 10
BTS256-LED Tester Description ( Continued )
Version 01.2009-01
Picture 10.1: Measurement Port View
BTS256P sensor can be
synchronized to the frequency of
the light signal. The fast integral sensor (photodiode) is
used to detect the AC component for both sensors (integral
and diode array). The measurement time (integration time)
is than set to integer multiples of the input signal AC com-
ponent time period.
The BTS256-LED tester microprocessor supports remote
controlled operation via RS232 interface. To simplify use it’s
processor supports the complete set-up, measurement and
calculation routine to minimize the PC software to a graphi-
cal user interface GUI level.
The BTS256-LED tester is fully remote controlled via it’s
RS232 interface. A USB to RS232 adapter is supplied to
allow connection to the more commonly supplied USB inter-
faces in today’s laptops and PCs. The USB adapter also
supplies the required 5V operating voltage.
NOTE:
The BTS256-LED RS232 interface and the USB to RS232
adapter are custom modified to supply power to the LED
tester. Both devices should only be used with the BTS256-
LED and not on any other conventional interface device.
To operate the BTS256-LED it needs to be connected to a
laptop or PC with USB interface by using the USB-RS232
adapter (picture 10.2) supplied. The adapter also supplies
the 5VDC operating voltage from the computer power sup-
ply to the BTS256-LED. The driver software for the adapter
is available on the G.O.O.S. software CD and installed dur-
ing the G.O.O.S. installation routine.
The BTS256-LED tester is calibrated by Gigahertz-Optik’s
calibration laboratory for light measurement quantities
against calibration standards traceable to national and inter-
national metrology laboratories. The calibration procedure
and calibration values with their calibration uncertainty are
confirmed in the individual set-up calibration certificates for
each device. Re-calibration is recommended every 12
months.
Picture 10.2: USB-RS232-5VDC Adapter
Picture 10.3: Hard-case
Picture 10.4:
Cone
Adapter
