Emerson NGA2000 Reference Manual page 105

NGA2000 Reference
PELT_OV
Direction
Binding
Type
Value range
Units
Description
Usage
See also
PELT_SET
Direction
Binding
Type
Value range
Units
Description
Usage
See also
PERCENT_MOD
Direction
Binding
Type
Value range
Units
Description
Usage
See also
PFACTOR
Direction
Binding
Type
Value range
Units
Description
Usage
See also
Rosemount Analytical Inc. A Division of Emerson Process Management
Output
None
Enumerated
NORMAL; NORMAL; WARNING
None
CLD only; warning message for the peltier control algorithm menu
Used to show a problem with the Peltier cooler, the device used to cool the optical
detector in the CLD.
Output
None
Integer
Volts
CLD only; the voltage being put on the Peltier device
Shows the voltage with which the Peltier cooler is currently being driven.
Output
None
Floating point
0-100
Percent
NDIR only; the modulation percentage resulting from the modulation check function.
The modulation check function allows the user to determine the amount of
modulation, or change in light transmission, caused by the span gas. There is a
sequence of events that are controlled by a menu in the NDIR analyzer. The result of
this function is reported in this variable. Typical values should be between 10 and
30%.
Bidirectional
None
2-element floating point array
Element 1 - 1250; element 2 - 1.5
None
Offset and slope respectively for the pressure compensation algorithm.
Used to determine how the pressure compensation algorithm works.
BAROMETER
PCOMP_GAIN
Reference Manual
748384-C
September 2003
Analyzer Variables 2-43