Comark RF500A User Manual
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Check for Transmitter Errors
The removal of the battery will cause the internal clock on the transmitter to reset and so generate a Code-100
condition. This will be cleared automatically by the Gateway, see “Transmitter Fault Codes” {Page 54} for details.
Verify that the transmitter display shows either “No Code”, “No Fault” or “Code-100” only.
Should a “Code-400” or “Code-500” occur after battery change on a previously working transmitter try removing
and reinserting the battery, taking care to snap the new battery in cleanly without making and breaking the contacts
repeatedly.
Gateway Indication of Low Battery
Once a transmitter shows “low battery” the radio is disabled, monitoring and data logging however will continue until
the battery becomes completely exhausted. If a transmitter is left in a state of low battery for a long period, there may
be many logged records awaiting transmission to the Gateway.
On changing the battery the transmitter logs a “battery good” record but due to Automatic Data Retrieval (ADR)
{Page 37} this record is only transmitted to the Gateway after any previously logged temperature records have been
transmitted. Therefore it may take several hours before the “battery good” record is received by the Gateway which in
turn clears the indication of Low Battery for the transmitter.