Fluke 8808A User Manual - Page 23
Frequency, Continuity, Diode Test, Accuracy
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1 Introduction and Specifications Electrical Specifications Frequency Gate Time 131 ms Measurement Method AC-coupled input using the ac voltage measurement function. Settling Considerations When measuring frequency after a dc offset voltage change, errors may occur. For the most accurate measurement, wait up to 1 second to allow input blocking RC time constant to settle. Measurement Considerations To minimize measurement errors, shield inputs from external noise when measuring low voltage, low frequency signals. Range Frequency 20 Hz - 2 kHz 100 mV to 2 kHz - 20 kHz 750 V[1,2] 20 kHz - 200 kHz 200 kHz - 1 MHz Notes: [1] Input > 100 mV [2] Limited to 8* 107 V Hz Accuracy Accuracy 90 days 23 °C ± 5 °C 0.01 + 0.002 0.01 + 0.002 0.01 + 0.002 0.01 + 0.004 1 year 23 °C ± 5 °C 0.01 + 0.003 0.01 + 0.003 0.01 + 0.003 0.01 + 0.006 Temperature Coefficient/°C Outside 18 - 28 °C 0.002 + 0.001 0.002 + 0.001 0.002 + 0.001 0.002 + 0.002 Continuity Continuity Threshold 20 Ω Test Currents 1 mA Response Time 100 samples/sec with audible tone Rate Fast Maxiumum Reading 199.99 Ω Resolution 0.01 Ω Diode Test Response Time 100 samples/sec with audible tone Rate Fast Maxiumum Reading 1.9999 V Resolution 0.1 mV 1-13