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Teledyne API - Model T200H/T200M Operation Manual Getting Started
53
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