Teledyne API - Model T200H/T200M Operation Manual Getting Started
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The state of the optional valves can be controlled:
Manually from the analyzer’s front panel by using the SIGNAL I/O submenu located
under the DIAG menu (Section 4.13.2),
By activating the instrument’s CAL or AutoCal features (Section 5.8),
Remotely by using the external digital control inputs (Section 4.15.1.2) or Ethernet.
Remotely through the RS-232/485 serial I/O ports (Section 4.11).
Table 3-11: 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
07270B DCN6512