Appendix H. Calibration Printouts; Cal / Wedge Printout - Zeiss humphrey HFA II-i series Field Service Manual

Humphrey Field Analyzer II - i

Appendix H. Calibration Printouts

Contents:

Cal / Wedge Printout

C
Automated Light Intensity Verification Printouts
C
White Light Verification Data
C
Blue-Yellow Verification Data
C
H.1 Cal / Wedge Printout
The numbered definitions below (1, 2, 3, etc.) are keyed to the numbered elements of the
sample calibration printout shown in Figure H-1.
1 = Date/time of calibration printout, instrument serial number, and hardware option
number.
2 = NVM Data
The numbers that appear in the printout represent the current calibration values stored
in Cal/Config Data for each item listed, for this particular instrument. A brief definition
of each item is given below, followed by a table that lists the acceptable tolerance range
for each item.
Proj . . . . . . . represents voltage* (left column) and intensity* (right column) of the
projection lamp when a white stimulus is projected.
Bowl . . . . . . represents voltage* and intensity* for the white bowl lamps.
Blue . . . . . . . represents voltage* and intensity* of the projection lamp when a blue
stimulus is projected.
Yellow . . . . . represents voltage* and intensity* for the yellow bowl lamp
Right Mode . microsteps of positioning
Left Mode . . microsteps of positioning
Offset Fix . . . microsteps of positioning
Focus . . . . . . microsteps of positioning
Shutter . . . . microsteps of positioning
Aperture . . . microsteps of positioning for each of the 5 positions of the aperture
wheel
Color . . . . . . microsteps of positioning for each of the 5 positions of the color wheel
* Voltage and intensity are expressed here as relative numbers, not actual units of voltage or
intensity (such as volts or foot-lamberts). Typically, any high round number (e.g., 30000) that
appears here in the printout is the default value for a parameter that has not been calibrated.
It is possible but highly unlikely that a calibrated value would fall precisely at a high round
number.
3 = Voltage drop across projector lamp when white stimulus is projected, and when blue
stimulus is projected.
52235C1105
Confidential and Proprietary
H - 1
Appendix H
Field Service Guide