Troubleshooting A Sensor Failure; Fault Log - Teledyne WORKHORSE Operation Manual

May 2015

Troubleshooting a Sensor Failure

If the PA test fails the sensor test, run PC2 to isolate the problem. The ambient temperature sensor is
mounted on the receiver board. This sensor is imbedded in the transducer head, and is used for water
temperature reading. The attitude temperature sensor is located on the PIO board under the compass.
The H-ADCP will use the attitude temperature if the ambient temperature sensor fails.
If one of the temperature sensors fails, the PC2 test will show both sensors at the same value.
>PC2
Press any key to quit sensor display ...
Heading Pitch Roll
301.01° -7.42° -0.73°
300.87° -7.60° -0.95°
300.95° -7.60° -0.99°
300.71° -7.61° -0.96°
300.69° -7.61° -0.96°
300.76° -7.60° -0.98°
>
If the temperature sensor is bad, the data can still be collected with no effects to accuracy or
quality. Contact TRDI about scheduling a repair of the temperature sensor at your convenience.

Fault Log

To determine why a sensor failed, view the fault log. To view the fault log, start BBTalk. Press the End key
to wake up the H-ADCP. Type the following commands: CR1, PA, FD, FC. The fault log will be displayed by
the FD command and is cleared by the FC command.
[BREAK Wakeup A]
H-ADCP Broadband H-ADCP Version x.xx
Teledyne RD Instruments (c) 1996-1997
All rights reserved.
[BREAK Wakeup A]
>CR1
>PA
| (PA test results (not shown))
|
>FD
Total Unique Faults
Overflow Count
Time of first fault:
Time of last fault:
Fault Log:
Entry # 0 Code=0a08h
Parameter = 00000000h
Tilt axis X over range.
Entry # 1 Code=0a16h
Parameter = 00000000h
Tilt Y axis ADC under range.
End of fault log.
>FC
Page 90
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Up/Down Attitude Temp
Up 24.35°C
Up 24.36°C
Up 24.37°C
Up 24.37°C
Up 24.35°C
Up 24.38°C
= 2
= 0
97/11/05,11:01:57.70
97/11/05,11:01:57.70
Count= 1 Delta=
Count= 1 Delta=
Ambient Temp Pressure
22.97°C 0.0 kPa
22.97°C 0.0 kPa
22.97°C 0.0 kPa
22.98°C 0.0 kPa
22.98°C 0.0 kPa
22.97°C 0.0 kPa
0 Time=97/11/05,11:01:57.70
0 Time=97/11/05,11:01:57.70
WorkHorse H-ADCP Operation Manual