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Schematic electrical diagram
For a detailed electrical diagram please refer to the technical documentation that you have
received separately.
Maintenance checklist
Your ultrasonic antifouling system does not need regular maintenance. Just check the
following minor items regularly:
-Check the inside of the cabinet and remove dust and particles once per month
-Check the installation of the transducer. If the transducer has come o, re-install applying
the steps under 'Installation of the transducer' again.
Troubleshooting
Step 1: The blue LED does not blink
If the transducer is not working properly, the blue indicator light on the cabinet door will stop
blinking. If this happens, open the cabinet, the PCB will probably have the its red LED on.
Then switch o the transducer and remove 240 VAC from the cabinet. Now disconnect the
transducer from the control cabinet.
Step 2: The fuse
Check the fuse of the PCB. If it is blown, replace it with a T6A, reapply 240 AC and check the
functioning of the PCB through the blue blinking light on the cabinet door. If it does start
blinking normally, the PCB is ne and the problem is the transducer. Proceed to step 3. If the
PCB does not start blinking normally (the fuse might trip again), proceed to step 4.
Step 3: Check the transducer
Using a multi-meter, check resistance between pin 1 and pin 2 on the male (cable-end) IP68
connector of the transducer. Resistance should be 1. If it is not 1, there is a short circuit in the
transducer or in the wire. Check the wire for damages, and if possible, take out the damaged
part. If the wire is not damaged, replace the transducer with cable with a new one. The inner
parts of the transducer are not serviceable. If wire and transducer are in order (resistance
between pole 1 and pole 2 is 1), proceed to step 4.
Step 4: Replace the PCB
If the fuse trips again and the transducer has been checked as described under step 3, replace
the entire PCB. On the PCB, pull o the green connectors (do not remove the wires from the
green connector itself). Loosen the 4 screws on the corners of the PCB and pull out the PCB.
Install the new PCB by applying the steps in reverse order. Close the cabinet and power on