Honeywell ERX, User Manual, Page: 46 / 84

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Default = 1.0000
513 P2 Previous Calibration Span Factor
The previous P2 span factor recorded in item 512 and is updated on each calibration.
Default: 0.000
514 Temperature Calibration Zero
The current temperature zero offset calibration constant. The value is normally very
close to 0.00 and calculated on each temperature zero calibration.
Default: 0.00
515 Temperature Previous Calibration Zero Offset
The previous temperature zero offset constant recorded in item 514 and is updated on
each calibration.
Default: 0.00
516 Temperature Calibration Span
The most recent temperature span value factor obtained during a temperature span
calibration. The value is normally very close to 1.0000 and recalculated on each
temperature span calibration.
Default: 1.0000
517 Temperature Previous Calibration Span Factor
The previous temperature span factor recorded in item 516, updated on each calibration.
Default: 1.0000
518 P1 Pressure Calibration Date
The date automatically obtained form item 583 at the time of the P1 pressure zero
calibration.
Default: 01-01-04
519 P2 Pressure Calibration Date
The date automatically obtained form item 583 at the time of the P1 pressure zero
calibration.
Default: 01-01-04
520 Temperature Calibration Date
The date automatically obtained form item 583 at the time of the temperature zero
calibration.
Default: 01-01-04
521 Battery Voltage Reading
Battery voltage reading obtained during the most recent wake-up.