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SECTION 2 – OPTIVIEW CONTROL CENTER
PROXIMITY PROBE CALIBRATION SCREEN
FIGURE 11 - PROXIMITY PROBE CALIBRATION SCREEN
This screen displays a cutaway view of the chiller com-
pressor, revealing the proximity probe sensor and pro-
vides the capability of calibrating the proximity probe
sensor. The appearance of this screen is the same for
compressor #1 and compressor #2.
R e q u i r e s a l o g i n a c c e s s l e v e l o f
SERVICE.
DISPLAY ONLY
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 posi-
tion. This value is defined at the conclusion of a cali-
bration sequence.
46
Oil Pressure
Displays the pressure differential between the pump oil
pressure transducer (compressor bearing input) and the
sump oil pressure transducer. If either of the transduc-
ers 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 fail-
ure.
PROGRAMMABLE
Enter Reference
Allows the Service Technician to enter a previously re-
corded reference when replacing a microboard.
Start Calibration
This starts the calibration procedure. This key is hid-
den after calibration has started.
FORM 160.79-O3
ISSUE DATE: 11/09/2018
LD27850
JOHNSON CONTROLS
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