Pc - User-Interactive Built-In Tests - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual
Timing RAM...............................PASS
Demod RAM...............................PASS
Demod REG...............................PASS
FIFOs....................................PASS
SYSTEM TESTS:
XILINX Interrupts... IRQ3
Receive Loop-Back........................PASS
Wide Bandwidth...........................PASS
Narrow Bandwidth.........................PASS
RSSI Filter..............................PASS
Transmit.................................PASS
SENSOR TESTS:
H/W Operation............................PASS
Wide Bandwidth and Narrow Bandwidth may fail if transducer is not in water. H/W Operation
test will fail if the transducer is on its side.
PC – User-Interactive Built-In Tests
Purpose Sends/displays results of user-interactive H-ADCP system diagnostic tests.
Format PCnnn
nnn = 0 to 2 (PC0 = Help menu; see below for others)
Range
Recommended Setting. Use as needed.
Description These diagnostic tests check beam continuity and sensor data. Both tests require user in-
teraction (see examples).
Examples See below.
PC0 – Help Menu
Sending PC0 displays the help menu.
User Interactive, Built In Tests
--------------------------------
PC0 = Help
PC1 = Beam Continuity
PC2 = Sensor Data
PC1 – Beam Continuity
Sending PC1 tests the beam continuity by measuring the quiescent Receiver Signal Strength Indicator
(RSSI) levels. There must be a change of more than 30 counts when the transducer face is rubbed.
The PC1 test is designed to measure relative noise in the environment and then have you apply more noise
by rubbing the ceramics with your hand. Sometimes your hand does not generate enough noise for the
system to detect. This could be due to the environment you are in or for other reasons. A simple, safe, and
easy to find material that works better than rubbing with your hand is packaging material (a.k.a. bubble
wrap). Using this instead of your hand will very likely provide enough relative frictional difference for the
system to pass.
If it doesn't, your system still might be okay. In this case deploy the H-ADCP into a bucket or container of
water (preferably at least 0.5 meters deep) and record some data using BBTalk and the log file (F3 key),
or you can record data straight to the recorder card if your H-ADCP has one. You can than look at the data
in our WinADCP program and make sure that the echo amplitude counts in the 1st depth cell for all beams
is between 128 and 192. If they are not, contact Field Service for further troubleshooting tips.
IRQ3 IRQ3 ...PASS
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
May 2015
Page 155