APPENDIX 3 ALERT CODES, MESSAGES AND MEANINGS
AP-12
194,6 SYSTEM ERROR Warning
Cat: B
Message: "PM COM ERROR"
Meaning: PM communication error.
Remedy: Press the ALERT ACK key. Restore signal or rectify reason for signal loss.
194,7 SYSTEM ERROR Warning
Cat: B
Message: "TUNE ERROR"
Meaning: TUNE error due to faulty settings or mal-
function.
Remedy: Press the ALERT ACK key. Restore signal or rectify reason for signal loss.
485,1 DEPTH Warning
Cat: B
Message: "SHALLOW DEPTH"
Meaning: Depth is below set threshold.
Remedy: Press the ALERT ACK key. Confirm depth. Adjust [DEPTH] settings as required.
495,1 ANCHOR WATCH Warning
Cat: B
Message: "OUT OF ANCHOR WATCH ZONE"
Meaning: Ship position outside set anchor watch
zone.
Remedy: Press the ALERT ACK key. Confirm Own Ship location and adjust as necessary.
540,1 AIS MSG Caution
Cat: B
Message: "TRANSMIT ERROR"
Meaning: Unable to transmit AIS binary message.
Remedy: Press the ALERT ACK key. Check power to AIS unit.
540,2 AIS MSG Caution
Cat: B
Message: "AIS TRANSMITTING"
Meaning: Transmitting AIS message.
Remedy: Press the ALERT ACK key. No other action required.
560,1 ASSOCIATION Caution
Cat: B
Message: "NOW ASSOCIATING"
Meaning: One or more sets of associated targets is
displayed.
Remedy: Press the ALERT ACK key. Set [ASSOCIATION] to [OFF].
601,1 SENSOR ERROR Warning
Cat: B
Message: "NO GYRO SIGNAL"
Meaning: No heading information received from gy-
rocompass for five seconds.
Remedy: Press the ALERT ACK key. Match the on-screen indication with the actual gyrocompass.
The indication “HEADING SET” appears. Press the ALERT ACK key to erase the indication.
601,2 SENSOR ERROR Warning/
Caution
Cat: B
Message: "NO LOG(WT) SINGAL"
Meaning: No speed data received for five seconds
when [LOG(WT)] is set as speed reference.
Remedy: Press the ALERT ACK key. Check SDME sensor. Use a different sensor if necessary.
601,3 SENSOR ERROR Warning/
Caution
Cat: B
Message: "NO LOG(BT) SIGNAL"
Meaning: No speed data received for thirty seconds
when [LOG(BT)] is set as speed reference.
Remedy: Press the ALERT ACK key. Check SDME sensor. Use a different sensor if necessary.
601,4 SENSOR ERROR Warning
Cat: B
Message: "NO EPFS SIGNAL"
Meaning: EPFS Error. No speed or position data re-
ceived from EPFS device for thirty seconds.
Remedy: Press the ALERT ACK key. Restore the signal. This indication cannot be erased if the
position signal is missing. The indication is automatically removed when the signal is restored.
601,5 SENSOR ERROR Warning
Cat: B
Message: "WGS-84 NOT USED"
Meaning: DTM sentence not received for thirty sec-
onds, or erroneous data received.
Remedy: Press the ALERT ACK key. Use the WGS-84 datum.
601,6 SENSOR ERROR Warning
Cat: B
Message: "NO UTC SIGNAL"
Meaning: UTC error. No date or time data received
for thirty seconds. No ZDA sentence input.
Remedy: Press the ALERT ACK key. Restore the signal to remove this indication.
Alert
ID
Alert title
Priority &
Category
Message and meaning
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