Instruction manual

Instruction Manual
760006-A
September 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices 11-19
Model NGA 2000 Platform
Press the NEXT button to go directly
to the Span valve 2 screen, and con-
tinue until all are setup as desired.
Autocalibration Sequence
Setup - General Parameters
1. From the Auto cal module setup
screen, select General parameters...
2. Edit the Timed function: line. This
may be CHECK, or CAL. If set to
CHECK, no zero or span will be
performed automatically, the gases
will flow but no commands will be
given to the Analyzers to zero or
span, no matter how the zero and
span valve screens have been con-
figured. If set to CAL, those zero
and span valve screens will control
the operation.
3. Set the Zero checks per span
checks: as desired. If set to 1, the
module will do the span functions
every time it does the zero func-
tions. If set to another number, it will
count zeros and only do a span
once it has done the desired num-
ber of zeros. This saves on span
gas.
4. Edit Input line control: to enable or
disable the operation of the discrete
input lines. If enabled, a contact clo-
sure can initiate a calibration se-
quence.
5. Set the master/slave/independent
status here also.
6. For analog output calibration, see
the Analog I/O module description
on page 11-9.