System Performance - GE Bently Nevada 7200 Series Installation Manual

SPECIFICATIONS FOR THE 14 MM PROXIMITY TRANSDUCER SYSTEM

SYSTEM PERFORMANCE

The following specifications apply at 72° F (22° C) with -24.0 ± 0.l Vdc supply, 10k ohm load, and
AISI E4140 steel target; and when test equipment is used with accuracy as specified by BNC
Specification 150980.
A. Calibrated Range
B. Average Scale Factor Over Calibrated
Range
Typical (90%)
Worst Case (99.7%)
Bench Calibration
C. Incremental Scale Factor (Derivative)
Over Calibrated Range in 20 mil (0.51
mm) Increments
Typical (90%)
Worst Case (99.7%)
Bench Calibration, average scale
factor adjusted for 100 mV/mil (3.94
V/mm)
160 mils (4.06 mm) beginning at
-2.0 Vdc -- approximately 20 to
180 mils (0.51 to 4.57 mm)
100 ± 3.0 mV/mil (3.94 ±0.12 V/mm)
100 ± 7.0 mV/mil (3.94 ±0.28 V/mm)
Can be adjusted with the Proximitor
calibration resistor for exactly 100 mV/mil
(3.94 V/mm)
See Appendix C, Figure C-1
100 ± 10 mV/mil (3.94 ± 0.39 V/mm)
100 ± 16 mV/mil (3.94 ± 0.63 V/mm)
100 ± 10 mV/mil (3.94 ± 0.39 V/mm) in 20
mil (0.51 mm) increments over 160 mil (4.06
mm) range starting at -2.0 Vdc
APPENDIX B
21