APPENDIX B
25
14 MM PROBES
The 7200 14 mm probe is available in many case styles, with or without armored probe cable,
and with or without a connector. The following specifications apply at 72° F (22° C) with AISI
E4140 steel target and when test equipment is used with accuracy as specified by BNC
Specification 150980.
A. Calibration Range
B. Interchangeability Error
1. Average Scale Factor Change (over
calibration range)
Typical
(90%)
Maximum
(99.7%)
2. Voltage Change at Same Physical
Gap (Maximum)
At midrange gap, 100 mils (2.54
mm)
Near beginning of range, 20 mils
(0.51 mm)
C. DC Resistance (Typical)
Probe Coil
Lead Center Conductor
Lead
Shield
D. Insulation Resistance
160 mils (4.06 mm) beginning at
-2.0 Vdc -- approximately 20 to
180 mils (0.51 to 4.57 mm)
Less than 4 mV/mil (157 mV/mm)
Less than 8 mV/mil (315 mV/mm)
2.2 Vdc
1. 8 Vdc
3.5 ohms
0.354 ohms/ft (1.16 ohms/metre)
0.017 ohms/ft (0.06 ohms/metre)
Capable of withstanding a minimum of 500
Vac rms at 60 Hz between probe case and
electrical circuit with less than 1 mA current
flow.
Summary of Contents for Bently Nevada 7200 Series
Page 22: ...APPENDIX A 17 Figure A 1 14 mm Probe Ordering Information ...
Page 24: ...APPENDIX B 19 Figure A 3 14mm Extension Cable Ordering Information ...
Page 34: ...APPENDIX C 29 6 APPENDIX C SCALE FACTORS AND SENSITIVITY CURVES ...
Page 36: ...APPENDIX C 31 Figure C 2 Probe and One Foot Cable at Temperature ...
Page 38: ...APPENDIX C 33 Figure C 4 9 Metres Cable at Temperature ...
Page 42: ...APPENDIX C 37 Figure C 8 Effects of Flat Surface Side Clearance ...
