Teledyne T200, Operation Manual, Page: 59 / 425

Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual Getting Started
57
3.3.2.4. CONNECTIONS W/AMBIENT ZERO/PRESSURIZED SPAN VALVES (OPT 50B)
This calibration valve package is appropriate for applications where Span Gas is being
supplied from a pressurized source such as bottled NIST SRM gases. This option
includes:

a critical flow orifice and vent to maintain the span Gas supply at 1 ATM

a shutoff valve to preserve the span gas source when it is not in use

two solenoid valves for the user to switch either zero, span or sample gas to the
instrument’s sensor

three additional gas inlet ports (
ZERO AIR, SPAN
and
VENT
)
Figure 3-23: Rear Panel Layout with Ambient Zero/Pressurized Span Valves OPT 50B
06858E DCN7057