Teledyne M300EM User Manual

Page of 398
Teledyne API – Technical Manual - Model 300E Family CO Analyzers 
Calibration Procedures 
 
193 
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