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Manual calibration with zero/span valves – Teledyne GFC-7000T - Trace CO2 Analyzer - manual User Manual

Page 184

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Calibration Procedures

Model GFC7000TA Carbon Dioxide Analyzer

Teledyne Analytical Instruments

166

7.4. Manual Calibration with Zero/Span Valves

There are four different zero/span valve option configurations (See Section 5.4). They all operate
identically, differing only in the method used to supply calibration gas to the Analyzer.

STEP ONE:

Connect the sources of Zero Air and Span Gas as shown below.

Figures 7-3 through 7-6 show the proper pneumatic connections for GFC 7000TAs with various optional
internal valve sets installed.

VENT

Figure 7-3:

Pneumatic Connections – Ambient Zero/Pressurized Span Valves