Emerson NGA2000 Reference Manual page 73

NGA2000 Reference
CALFAIL
Direction
Binding
Type
Value range
Units
Description
Usage
See also
CALFPC
Direction
Binding
Type
Value range
Units
Description
Usage
See also
CALRANGES
Direction
Binding
Type
Value range
Units
Description
Usage
See also
Rosemount Analytical Inc. A Division of Emerson Process Management
Bidirectional
None
Enumerated type
NO; YES
None
Enables calibration alarm reporting
If enabled, allows the analyzer to report a calibration failure as an alarm. In version
2.2 or earlier, this merely reports this fact to the control module, not to the 1/0
module for relay indication.
CALCHKLIMITS
CALFPC
Bidirectional
None
Floating point
0 - 80; typically 5
Percent
Calibration error percentage
The percentage of range that constitutes a calibration failure. If the calibration gas is
measured such that the difference between its measured value and its alleged value
is greater than this as a percent of range, then the calibration will fail, if
CALCHKLIMITS is set to enabled.
CATCHLIMITS
CALFPC
Bidirectional
None
Enumerated type
SEPARATELY; TOGETHER
None
Determines whether ranges are spanned together or separately.
If separately, a span command will cause a span on the current range only. If
together, a span command will cause the analyzer to attempt to span on all ranges,
unless it has to change hardware gains or unless the span gas concentration is
greater than 10% higher than the range's upper limit. In these cases it will not
calibrate the ranges it can't, but it will calibrate the others. In general it is best to
calibrate ranges separately.
CALCHKLIMITS
SPANGAS
Reference Manual
748384-C
September 2003
Analyzer Variables 2-11