3 EC350 installation
3.7 Power Supply Options
Honeywell 2024
43
3.7.2 Battery Powered
Connections for the Battery pack are made at the P5 connector on the EC350 IO Board. There are three
Battery choices for operating the EC350 from battery power:
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40-6050 (4-cell Alkaline) – 5 year operating life under specified conditions
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40-6048 (2-cell Lithium)
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Dual set of 40-6048 (2-cell Lithium) – extended life or heavy usage / comms applications.
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Use the Battery Pack Type (Item 1061) to select the type of Battery pack that is being used to
power the instrument.
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0= 4 Cell Alkaline (default type)
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1= 2 Cell Lithium
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2= 4 Cell Lithium (dual set of p/n 40-6048)
The Battery voltage is measured on a 10 minute interval. Three consecutively low readings are required to
the trip the Low Voltage Alarm (Item 99) – this is done to help guard against falsely setting alarm due to a
supply glitch.
Note: The Low Battery Voltage Alarm (Item 99) will not set if an External Supply voltage is present at
TB1 with a voltage level greater than the Battery voltage by over 1.0 VDC. When a Low Battery Voltage
Alarm is tripped (set), an Alarm Log record entry is generated along with updates to time stamp Items
462 and 463.
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