User manual

905K Radio Telemetry Module User Manual
 ELPRO Technologies Pty Ltd 2010 Page 46
5 DIAGNOSTICS AND TESTING
5.1 System Problems
Most problems relate to incorrect configuration, or radio path problems. Before installing the
905K module, "bench-test" its operation with the receiving 905U module alongside. If the 905K
does not work properly in this test, it will not work properly installed. If problems are found,
check the configuration.
If the bench-test is successful, however problems are experienced after installation, check the
radio path (refer to the 905U User Manual for radio path testing).
The 905K provides the following diagnostic features which will help to identify problems.
5.2 LED Indicators
Normally the green OK LED on the front panel will flash briefly every 10 seconds. When the
OK LED extinguishes a sleepmode state is indicated conserving the 905K's battery power. If the
OK LED does not flash, a flat battery condition or an internal failure may exist. If the 905K
module is located outside, then it will be difficult to see when the LED indicators are on.
Remove the front lid of the 905K to see the LED's better.
The yellow TX LED will flash whenever a radio transmission occurs.
Table of indicator conditions
INDICATOR
CONDITION
MEANING
OK LED ON Flashes briefly Normal Operation
OK LED OFF
Continuously
Supply fail or Battery voltage low
CPU failure
OK LED ON
Continuously
Analog loop on
Configuration cable connected
TX LED ON Flashes briefly Radio transmitting
5.3 Diagnostic Features
The configuration software provides some diagnostic features to help identify problems. To use
these features, connect the 905K to a PC using a RS232 cable and run the configuration
software. The OK LED will light continuously once the module is in configuration mode.
Note : The OK LED will generally not light continuously unless the cable is in place and the
configuration software is running.