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Teledyne API - Model 200EH/EM Operation Manual Optional Hardware and Software
43
Table 5-2: Two-Point Span Valve Operating States
MODE VALVE CONDITION
Sample/Cal
Open to SAMPLE inlet
Zero Gas Valve
Closed to ZERO AIR inlet
High Span Valve
Closed to HIGH SPAN inlet
SAMPLE
Low Span Valve
Closed to LOW SPAN inlet
Sample/Cal
Closed to SAMPLE inlet
Zero Gas Valve
Open to ZERO AIR inlet
High Span Valve
Closed to HIGH SPAN inlet
ZERO
CAL
Low Span Valve
Closed to LOW SPAN inlet
Sample/Cal
Closed to SAMPLE inlet
Zero Gas Valve
Closed to ZERO AIR inlet
High Span Valve
Open to HIGH SPAN inlet
HIGH
SPAN
CAL
Low Span Valve
Closed to LOW SPAN inlet
Sample/Cal
Closed to SAMPLE inlet
Zero Gas Valve
Closed to ZERO AIR inlet
High Span Valve
Closed to HIGH SPAN inlet
Low Span
Check
Low Span Valve
Open to LOW SPAN inlet
04521C (DCN5731)