Transmission Losses - Arexx Pro Mode D'emploi

3. Transmission losses

Sometimes transmission losses may arise, indicated by missing
temperature data in the sensor's curve display.
Data losses may be caused by:
1. Problems inside the USB-receiver
2. Problems in the temperature sensor module
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3. Problems in the signal transfer between temperature sensor
N
module and USB-receiver
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3.1. Problems inside the USB-receiver
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The receiver does not registrate a single data signal, even if the sensor
I
is located at a minimum distance to the receiver.
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Potential problems:
- USB-cable between receiver and computer is missing or defect.
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- Improper installation of the USB-module.
- Unknown software problem in the computer system.
Suggested solutions:
- Check the display window in the temperature logger display
for a field in the lower left area. The field is to display the value
'ready' continously. If the display intermittently displays
'RF_USB-Communication failure',
the Windows operating system
failed to find the USB-module.
- Remove the USB-cable,
wait about ten seconds and
reconnect the cable.
- Deinstall the temperature logger
application software and
reinstall it again.
Configuration example with several
repeater stations for a longer range
Fig. 11. Repeater configuration
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