Honeywell® FS24XPlus™ | User Manual
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Pressing the [Graph] button will cause a new form much like the image shown below to open. In this
example, the two large pulses at 18 and 8 seconds before the alarm are self-test signals.
The last tab is Update Firmware and it is shown below. This facilitates improving the performance of
existing flame detectors in the field. Firmware update is only permitted over the USB interface.