Klein 5000 V2 Series, Operation And Maintenance Manual

Page: 61 / 112

Testing the Towfish Electronics
4-13
The compass calibration can also be done by manually entering commands in the
Operator command
area of the Towfish Diagnostics tab. After entering a
command, click
Send Command
to send the command to the towfish.
To calibrate the compass manually, enter the following commands in the order
shown.
$TM0:
Turn off transducer transmitter.
$TA0:
Turn off altimeter transmitter.
$Ch: Halt compass transmission.
$Cmpcal=d:
Disables compass multi-point calibration mode.
$Ccc:
Clears compass calibration table.
$Cmpcal=e:
Enables multi-point calibration.
$Cgo:
Starts compass for calibration. Rotate the towfish 360
degrees while rotating the towfish through the limits of
pitch and roll. This should be done over a time frame of
1 minute.
$Ch:
Halt compass calibration.
$Cmpcal=d:
Disables compass multi-point calibration mode.
$Cgo:
Starts compass.
$TA1:
Turn on altimeter transmitter.
$TM3:
Turn on transducer transmitter.
Turn the towfish off and then on again and check that the compass is working.
NOTE
Excellent calibration results have been obtained by enabling the
compass calibration and towing the towfish in a series of three circles with
the boat.
NOTE
If trying the method mentioned in the note above, survey the area
first making sure you have enough water to operate safely since the
transmitters are turned off.