Charging The Internal Backup Battery; Clock Battery; Data Protection While Power Is Off; Sd Card - Honeywell FMC2000 User Manual

Radio Specifications
Radio model: RM2400A
Frequency range: 2.400-2.4835GHz
Modulation: 802.15.4 DSSS BPSK
RF power(Tx): 20dBm
Data rate: 250kbps

6 Charging The Internal Backup Battery

Whenever AC power is supplied to the FMC2000, the internal
backup battery is always being charged. The backup battery
ensures continuous operation if the AC power source is
interrupted. It is fully charged after 6 to 8 hours of operation.
The FMC2000 can run for up to 15 hours on the backup battery.
6.1

Clock Battery

An internal clock battery is mounted on the top printed circuit
board. This long-life battery keeps settings in memory from being
lost whenever the power is turned off or disconnected. This clock
battery should last approximately five years, and must be replaced
by an authorized Honeywell Analytics service technician. It is not
user-replaceable.
6.2

Data Protection While Power Is Off

When the FMC2000 is turned off, all the current real-time data
including last measured values are erased. However, the datalog
data is preserved on an SD card if it is installed. Even if the
battery is disconnected, the datalog data will not be lost.
6.3

SD Card

The FMC2000 uses an SD (Secure Digital) card for datalog
storage.
FMC2000 User's Guide
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