Troubleshooting - Cygnus 1 Operation Manual

TROUBLESHOOTING

If there is no datalink from the Gauge
There will always be a green indicator and a
window while the PC is receiving communication from the Gauge – if not :
Check that the Gauge is correctly connected to a spare Serial-port on the PC
See : Data & Power Connections, page 21
Check that CygLink COM-port setting is the same as the Serial port which the
Gauge is connected to.
Check that the Baud-Rate setting is correct [normally set to 2400]
See : Adjusting the Comms-settings using CygLink, page30
Check that the correct power is being supplied to the Gauge
See : Gauge Specification, pages 9, 10, 11
If the settings are all correct, but there is a red indicator and link error messages
It may be necessary to add cable-termination at the surface end of the cable
See : Data and Power Connection, page 21
If setting-up the Cygnus 1 ROV System for the first time :
Connect the system together using the supplied Test-Cable to confirm the Gauge
has the correct connections to operate
Confirm that the PC has a spare Serial port installed – use Windows
Panel to check System settings
If the datalink is OK, but there is no Display box in the middle of the CygLink main
window :
This indicates an internal failure in the Gauge configuration
The Gauge must be returned to Cygnus for servicing
See : CygLink main window, page 31
If it is difficult to obtain any reading
If there is only a single flashing bar in the Echo-Strength display - this means the
Gauge is not receiving any echoes :
Check that the Probe-assembly is properly attached to the Gauge
See : Fitting the probe-Assembly, page 18
Confirm that the Probe-cable is not damaged
If there is mostly one fixed bar plus one flashing bar this means that the Gauge is having
difficulty obtaining more than one echo :
This indicates either poor contact, or badly corroded material
This can also occur if the Probe membrane has been fitted incorrectly
Check the Probe and its membrane are properly assembled
See : Probe / Knurled-Ring Assembly, page 20
Measuring with the Gauge
Link OK
message in the CygLink main
®
Control
40