ITT Controls Barton Nuclear 227A - Mounting and Piping; Zero Check and Adjustment

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Section 2 Model 227A Dierential Pressure Indicator
HUB
Pointer "slipped"
rotated on hub
Hub held in place
with 1/4" wrench
Figure 2.1—"Slipping" pointer
Startup
For startup procedures, warnings, and other information, refer to Appendix A.
IMPORTANT: To ensure the unit calibration is within factory-set calibration tolerances,
perform the Calibration Check procedure on page 10.