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If an ION8500 has firmware version v280, it means that it is a RevB meter. This meter has be repaired with parts an ION 8600, which is why it has the unique "RevB" firmware.
All attempts to downgrade this meter to versions lower than v280 (using ION Enterprise or ION Setup) will fail.
Last Revised: November 23, 2007
Applies To: ION 8500
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