Emerson NGA2000 Reference Manual page 72

Reference Manual
748384-C
September 2003
CALCHKLIMITS
Direction
Binding
Type
Value range
Units
Description
Usage
See also
CALDATE_S
Direction
Binding
Type
Value range
Units
Description
Usage
See also
CALDATE_Z
Direction
Binding
Type
Value range
Units
Description
Usage
See also
2-10 Analyzer Variables
Bidirectional
CALCHKLIMITS
Enumerated type
DISABLED; ENABLED
None
Enables or disables calibration limit checking.
If enabled, will not allow a zero or span that requires more of a change (as a
percentage of the current range) than is shown in CALFPC. If disabled, will allow
zero or span to work no matter how much change in the calibration factors is made.
If the current calibration is known to be good, enabling this will prevent subsequent
calibration on grossly incorrect gases; if the current calibration is known to be bad for
some reason, disabling this will allow a successful zero or span no matter how much
of a change is required.
CAL_ERR_MSG
CAL_VALIDITY
SPAN
ZERO
SPANGAS
ZEROGAS
Output
None
String
31 characters
None
Date of the last span
Shows the time and date of the last span. This requires that a control module be
used with the analyzer so that its internal clock is updated, or alternatively a PC can
be used to write into I_TIME.
CALDATE_Z
Output
None
String
31 characters
None
Date of the last zero
Shows the time and date of the last zero. This requires that a control module be
used with the analyzer so that its internal clock is updated, or alternatively a PC can
be used to write into I_TIME.
CALDATE_S
NGA2000 Reference
Rosemount Analytical Inc. A Division of Emerson Process Management