Field Installation Calibration Tag - ABB Fulscope 76J Series Model C Instructions Manual

76J Pneumatic Fulscope Recorder
MAINTENANCE
7. Remove case fitting from access plate.
* NOTE:
If Bourdon spring will clear lower opening, remove thermal system downward
through case.
If Bourdon spring will not clear lower opening, remove thermal system upward
through case.
* NOTE:
8. Install new thermal system by reversing the removal procedure. If a Bourdon spring must
be moved on subbase for access to base screws, mark position and return assembly to
this position prior to calibration. Install case fitting, access plate, terminal block, chart
motor, and wiring.
9. Proceed to 4.4 Pen Calibration for preliminary information and 4.4.3 Zero Adjustment to
touchup micrometer screw.
10. Verify span and linearity adjustments.
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Figure 18. Field Installation Calibration Tag
In either of the following steps it may be necessary to release instrument
mounting brackets to extend bottom of case forward for full access
opening clearance. Refer to Figure 2.
Refer to Figure 19. The replacement thermal system has been factory
calibrated with a specific link length and pivot selection. Use this Link
on New Element and Refer to Yellow Instruction Tag for Installation
Information.