Berthold LB 134, Руководство пользователя

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LB 134 6. Software Functions
77
Baud Rate:
The baud rate for the USB interface is always 38400 baud and
cannot be changed. The baud rate for the RS485 interface can
be set between 2400 and 38400 and depends on the length of
the data cable and the number of connected devices. The
shorter the line and the less devices are connected, the higher
may be the baud rate. The other parameters are 8 data bits, 1
start bit, 1 stop bit and no parity.
Key Sounds:
When this function is enabled, you hear a short beep whenever
a key is pressed.
Serial ready:
This parameter must always be enabled for data communica-
tion. If this parameter is disabled, then the processor goes to
sleep every second for about 700 ms and the battery life of the
battery/rechargeable batteries is significantly prolonged.
Vinculum Prog On:
To program the USB Vinculum chip in the final testing in the
factory, this parameter must be enabled and then disabled
again for the normal measurement operation.
Dead Time:
The dead time of the detectors for the individual channels in mi-
croseconds are set at the factory.
Fail Time / Fail Threshold:
Each detector has its own fail threshold and fail time because
the backgrounds are very different and we do not want to get
any false alarms, but on the other hand, we would like to get
failure messages as quickly as possible. For contamination
probes, failure monitoring always refers to the beta channel.
During a normal measurement, a counter/timer measurement
monitoring whether the probe count rate has fallen below the
fail threshold is constantly running in the background. This test