Instruction manual

Instruction Manual
760006-A
September 2001
11-20 Appendices Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 Platform
Single Analyzer Analog Autocal
Module Operation
Initializing A Calibration
There are three ways to initiate a calibra-
tion sequence:
• Let the timer do it automatically.
• Make a suitable contact closure with the
Input line control enabled.
• Enter the Calibration initiation screens.
The first two have already been de-
scribed. To do the last one, read on.
You can either start an automatic calibra-
tion, or you can force the system to be-
have as you want through the manual
calibration screen. In either screen you
can watch the operation.
These screens are accessible either
through the Auxiliary module setup...
screen or through Auxiliary module con-
trols... under Expert setup and controls...
Enter the Automatic calibration initiation
screen, and press START. You can abort
the sequence by pressing ABORT, and
you can cut short the resultant sample
purge time by pressing ABORT a second
time.
To make the system perform a particular
operation such as zeroing or spanning,
and thus avoiding the normal sequence,
enter Manual calibration. Select the op-
eration desired, and the gas source de-
sired, and press START as above.