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Optional Hardware and Software
Model 400E Ozone Analyzer
Instruction Manual
50
P/N 04316 Rev: B
Table 5-1 lists the Open/Closed state of each valve during the analyzers various
operational modes.
Table 5-1: Zero/Span Valve Operating States
Option
Mode
Valve
Condition
Sample/Cal
Open to SAMPLE inlet
SAMPLE
Zero/Span
Open to ZERO AIR inlet
Sample/Cal
Open to ZERO/SPAN Valve
ZERO CAL
Zero/Span
Open to ZERO AIR inlet
Sample/Cal
Open to ZERO/SPAN Valve
50
SPAN CAL
Zero/Span
Open to SPAN GAS inlet