Basic Steps In Troubleshooting; Troubleshooting The H-Adcp; Troubleshooting Safety - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual

Basic Steps in Troubleshooting

The first step in troubleshooting is determining what type of failure is occurring. There are four types of
failures:
•
Communication failure
•
Built-In test failure
•
Beam failure
•
Sensor failure
Communication failures can be the hardest problem to solve as the problem can be in any part of the system
(i.e. the computer, H-ADCP, cable, or power). The symptoms include having the system not respond, or
not responding in a recognizable manner (for example "garbled" text).
Built-In test failures will appear when the system diagnostics are run. Use WinSC or BBTalk to identify the
failing test.
Beam failures can be identified when collecting data or during the user-interactive performance tests.
Sensor failures can also be identified when collecting data or during the user-interactive performance tests.
The sensor may send incorrect data, or not be identified by the system.

Troubleshooting the H-ADCP

Although the H-ADCP is designed for maximum reliability, it is possible for a fault to occur. This section
explains how to troubleshoot and fault isolate problems to the Least Replaceable Assembly level (see
Table 5). Before troubleshooting, review the procedures, figures, and tables in this guide. Also, read the
System Overview to understand how the H-ADCP processes data.
Under all circumstances, follow the safety rules listed in the Troubleshooting Safety.

Troubleshooting Safety

Follow all safety rules while troubleshooting:
Servicing instructions are for use by service-trained personnel. To avoid dangerous electric
shock, do not perform any service unless qualified to do so.
Complete the ground path. The power cord and the outlet used must have functional grounds.
Before power is supplied to the H-ADCP, the protective earth terminal of the instrument must
be connected to the protective conductor of the power cord. The power plug must only be
inserted in a socket outlet provided with a protective earth contact. The protective action must
not be negated by the use of an extension cord (power cable) without a protective conductor
(grounding). Grounding one conductor of a two-conductor outlet is not sufficient protection.
Any interruption of the earthing (grounding) conductor, inside or outside the instrument, or
disconnecting the protective earth terminal will cause a potential shock hazard that could result
in personal injury.
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
May 2015
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