Teledyne GFC-7001E - Trace CO Analyzer - Manual (Page 193)

Calibration Procedures Model GFC7001E Carbon Dioxide Analyzer
Teledyne Analytical Instruments 193
9.3. MANUAL CALIBRATION WITH ZERO/SPAN VALVES
There are a variety of valve options available on the GFC 7001E/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