Teledyne 9110T - Nitrogen Oxides Analyzer - Manual (Page 209)

Model 9110TH NOx Analyzer Calibration Procedures
Teledyne Analytical Instruments 209
9.4. MANUAL CALIBRATION AND CAL CHECKS WITH THE
VALVE OPTIONS INSTALLED
There are a variety of valve options available on the 9110T for handling calibration gases (see Section
1.4 for descriptions of each).
Generally performing calibration checks and zero/span point calibrations on analyzers with these options
installed is similar to the methods discussed in the previous sections. The primary differences are:
 On instruments with Z/S valve options, zero air and span gas is supplied to the analyzer through
other gas inlets besides the sample gas inlet.
 The zero and span calibration operations are initiated directly and independently with dedicated
buttons (CALZ & CALS).
9.4.1. SETUP FOR CALIBRATION USING VALVE OPTIONS
Each of the various calibration valve options requires a different pneumatic setup that is dependent on
the exact nature and number of valves present. Refer to the following diagrams for information on each
or these valve sets.