Trawl Explorer | V7 | Maintenance and Troubleshooting
• If the computer goes to sleep mode, the sensor may be disconnected. Change the settings on
your computer to increase the time before sleep mode.
• If the problem persists, connect the sensor to a charger and wait until it is fully charged. Then
try again to connect.
Mosa2 displays a critical error message.
• Disconnect both USB connector and three-pin plug. Then, connect again the Configuration
Cable. If the message is still displayed, it means there is an issue with the sensor’s components.
Contact Marport support.
Data in Scala/Scala2 is wrong
Data displayed in Scala/Scala2 is wrong and the echogram is noisy.
There are signal interferences.
1.
First, check that the sensor frequencies and telegrams are the same in the sensor configuration
(via Mosa2) and the receiver configuration (via Scala/Scala2 or the system web page).
2.
Check the frequencies of your other sensors and make sure there is enough distance between
them.
3.
Check the noise on the spectrum (see
on page 45). If the frequency
where the sensor is placed is too noisy, change for a less noisy frequency: see
on page 19.
Important:
Do not forget to also change the frequency on the system web page
(accessible through Scala/Scala2 receiver page).
4.
You can increase the uplink power of the sensor to increase the power of the signal transmitted
to the receiver: see
on page 28.
5.
You can change the Echogram filter on the system web page (Scala/Scala2 receiver page):
1.
From Scala/Scala2, click
Menu
>
Expert Mode
and enter the password
copernic
.
2.
Click menu again, then
Receivers
.
3.
Right-click the IP address of the receiver at the bottom of the page, then click
Configure Receiver
.
4.
From the left side of the page, click the name of the sensor.
5.
From the sensor configuration page, click
Configure
next to
Filter
.
6.
From NBTE Echograms Filter select
Echosounder and Interference Reduction Medium
or
High
.
Echogram is fixed and blue
The echogram displayed in Scala/Scala2 is completely blue. There is no yellow line moving on top
of the echogram, which means that no sonar data is received.
Sounder frequency may be outside the correct frequency range.
1.
From Mosa2, click
Trawl Explorer
>
Ping Down Frequency
/
Ping Up Frequency
and check that
the frequency is between 120-210 kHz.
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Summary of Contents for NBTE V1
Page 1: ...Trawl Explorer User Guide...
Page 2: ......
