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Teledyne API – Technical Manual - Model 300E Family CO Analyzers Calibration Procedures
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9.3. MANUAL CALIBRATION WITH ZERO/SPAN VALVES
There are a variety of valve options available on the M300E/EM for handling calibration gases (see Section 5.6
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 of this section. 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 keys
(CALZ & CALS).
9.3.1. 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.
Figure 9-3: Pneumatic Connections – Option 50A: Zero/Span Calibration Valves
Figure 9-4: Pneumatic Connections – Option 50B: Zero/Pressurized Span Calibration Valves
04288D DCN5752