24
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
3.
Problems in the signal transfer between temperature sensor
module and USB-receiver
3.1. Problems inside the USB-receiver
The receiver does not registrate a single data signal, even if the sensor
is located at a minimum distance to the receiver.
Potential problems:
-
USB-cable between receiver and computer is missing or defect.
-
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.
E
N
G
L
I
S
H
Fig. 11. Repeater configuration
Configuration example with several
repeater stations for a longer range