Proximity probe calibration screen
Chillers with J or H3 compressors
Figure 18: Proximity probe calibration screen (chillers with J or H3 compressors)
This screen displays a cutaway view of the chiller compressor, revealing the Proximity Probe sensor
and provides the capability of calibrating the Proximity Probe sensor.
Note: Requires a login access level of SERVICE.
Table 40: Display only
Field/LED name Description
High Speed Thrust Bearing
Proximity Position
Displays the distance between the high-speed thrust collar and the
Proximity Probe that is used to measure the position.
High Speed Thrust Bearing
Proximity Reference
Position
Displays the presently defined offset reference position. This value is
defined at the conclusion of a calibration sequence.
Oil Pressure
Displays the pressure differential between the high side oil pressure
transducer (compressor bearing input) and the low side oil pressure
transducer (oil sump). The displayed value includes offset pressure
derived from auto-zeroing during the System Prelube. If either of
the transducers used to calculate this differential is out of range, the
display field will show XX.X.
Calibration in Progress
(LED)
Indicates that the calibration sequence is in progress.
Calibration Messages
These are text messages which step the user through the calibration
process and indicate its success or failure
55YK-EP Style B Centrifugal Chiller
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