JUMO 902931 Wtrans Receiver with Wireless Data Transmission Operating Manual - Manual (Page 45)

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7 Operating the receiver
7.3 Displaying the signal quality of the received transmitters
Figure 22: Display of signal quality
The key is used to show the signal quality value of the current channel in percent in the
normal display (NA) (see Figure 22, 100 %).
The display range between 0 and 100 % is displayed in increments.
 Chapter 4 "Mounting", page 23
If a telegram is received in all five transmission intervals, the signal quality is 100 %. If only four
telegrams are received, the signal quality is reduced to 80 %, etc.
Table 1: Number of telegrams received and signal quality display
For optimum positioning of transmitter and reception antenna, we recommend setting a very
small transmission interval as a test. This reduces the waiting time for the signal quality display
update.
Increments: 0/20/40/60/80/100 %
Display of 0: No transmission signal
Remedy: Check transmitter battery, optimize wireless transmission path
Display of 20 to 40: Insufficient transmission signal
Remedy: Check receiver antenna mounting site
Display of 60 to 100: Signal quality is sufficient for reliable system operation
TIP!
The displayed signal quality is calculated from the last five expected transmission intervals.
Number of telegrams received
in the last 5 transmission intervals Display of signal quality
5 100 %
4 80 %
3 60 %
2 40 %
1 20 %
0 0 %