54
6 Troubleshooting
6.3.1
Check the radio connection
Check the following points first if there are problems with radio
communication between the logger and
Master
:
●
Are all aerial connections clean and dry (
SePem 150
logger,
Master
)? Moisture will reduce the quality of the radio connec-
tion.
●
Are the logger and
Master
approx. 1 – 2 m apart?
●
Are there any other devices nearby that may transmit at the
same frequency (433 MHz), (e.g. correlators or radio masts)?
Either remove the other transmitting device (e.g. correlator)
or select a new installation location (e.g. away from fixed ra
-
dio mast).
If the interference is not due to one of the causes mentioned
above then it will be necessary to establish if the interference to
the radio signal is permanent or intermittent. To do this, test the
radio connection with at least two loggers in succession.
1. Test the radio connection between the
Master
and a logger
(first logger) at another location far away from the original
installation location.
Result:
Conclusion:
– Radio communication
OK
Original installation location
unsuitable, e.g. due to strong
shielding effects or another
transmitting device in the area
– Radio communication
not OK
Master, Master aerial, first log
-
ger or its aerial faulty
2. Test the radio communication between the
Master
and another
logger (second logger) at the same place as under Step 1.
Result:
Conclusion:
– Radio communication
OK
First logger or its aerial faulty
– Radio communication
not OK
Master or Master aerial faulty