Emerson NGA2000 Reference Manual page 153

NGA2000 Reference
ZERORNGS
Direction
Binding
Type
Value range
Units
Description
Usage
See also
Rosemount Analytical Inc. A Division of Emerson Process Management
Bidirectional
None
Enumerated
SEPARATELY; TOGETHER
None
Determines whether to zero each range separately or do them all at once.
If set to SEPARATELY, when a zero operation is performed, only the current
range will be zeroed. If set to TOGETHER, the analyzer will attempt to zero each
range, one after the other, assuming that the gas contains the concentration
shown in each element of ZEROGAS. If these are different, this will fail, unless
CALCHKLIMITS is set to DISABLED, in which case it will zero all ranges anyway.
If the preamp gain has to be changed between ranges, the analyzer will not zero
any range for which it has to change the gain. If it fails to zero any range, it will set
CALRESULT such that any failed ranges are uncalibrated. In this case it will
leave the original zero factor unchanged.
ZERO
CALRANGES
Reference Manual
748384-C
September 2003
I/O Modules Variables 3-27