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3.7.2.1 Zero-Foot Calibration Procedure
Before the GRA 5500 is ready for normal operation, it is necessary to perform the following zero-foot
calibration procedure.
NOTE
Before initiating the zero-foot calibration procedure, see
5500 is physically ready to be calibrated.
The GRA 5500 Retrofit Installation Tool provides an interface button to initiate the zero-foot calibration
procedure. Clicking this button will make a series of requests to the connected GRA 5500. During the
calibration procedure, the GRA 5500 Retrofit Installation Tool will display a progress dialog. Once the
calibration procedure has completed, the progress dialog will close, and the status tab will be updated. If
the fault list does not annunciate any faults and the information displayed in the status bar area indicates "0
ft" and "Normal," the unit has been successfully calibrated.
If a fault is indicated, see
The following sections detail the primary functions of the GRA 5500 Retrofit Installation Tool.
GRA 5500 Installation Manual
Page 3-8
Table A-3
for resolution methods.
Section 3.7.3
to ensure the GRA
190-01277-00
Rev. A
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