User guide

Veloce 50 Operating Manual
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8.1.2.2 Signal averaging
Resolution improvement is achieved by averaging the input signal. The Veloce always make acquisition of
the photo-detectors (input signals) at a rate of 200 kHz. The output rate is determined by the time
constant. A time constant set at 0.001s corresponds to a refreshing rate of 1/0.001 s = 1 kHz. For the
same time constant, the number of averaged samples is obtained by multiplying the time constant minus
0.000005 by 200 000Hz (e.g. (0.001s – 0.000005) × 200 000 Hz = 199 samples). Time Constant is
adjustment with the command [TC0.ssssss], where the parameter 0.ssssss is the time constant in second.
8.1.2.3 System reset
The system can be reset by switching system off and on, by pushing the reset button, or by using the
command [RS].
8.1.2.4 Zeroing
The command [AZ0] will add a 0V offset to the analog output as specified by the parameter but does not
reset the system. For zeroing the sensor without resetting the system then use the command [ZO].
8.1.2.5 Versions
Calibration date, serial number, and firmware and hardware versions can be obtained using the
commands [DC], [SN], [VR] and [VB], respectively.