2635A
Users Manual
A-12
2-Wire Accuracy
Add 4.0Ω to accuracy specifications for channels 1 to 20, and add 20 mΩ for channel 0.
Lead wire resistances are not included.
300V dc or ac rms on all ranges
Cross-Talk Rejection
Refer to Appendix B.
Frequency Measurements
Resolution and Accuracy
See Table A-15.
Table A-15. Frequency Measurements-Resolution and Accuracy
Range Resolution Accuracy + (% ± Hz)
Slow Fast Slow Fast
15 Hz - 900 Hz 0.01 Hz 0.1 Hz 0.05% + 0.02 Hz 0.05% + 0.2 Hz
9 kHz 0.1 Hz 1 Hz 0.05% + 0.1 Hz 0.05% + 1 Hz
90 kHz 1 Hz 10 Hz 0.05% + 1 Hz 0.05% + 10 Hz
900 kHz 10 Hz 100 Hz 0.05% + 10 Hz 0.05% + 100 Hz
1 MHz 100 Hz 1 kHz 0.05% + 100 Hz 0.05% + 1 kHz
Frequency Range
15 Hz to greater than 1 MHz
Input Sensitivity
See Table A-16.
Table A-16. Frequency Measurements - Input Sensitivity
Frequency Level (sine wave)
15 Hz - 100 kHz 100 mV rms
100 kHz - 300 kHz 150 mV rms
300 kHz - 1 MHz - 2V rms
Above 1 MHz Not specified
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