FLUKE 8845A-EFPT User Manual for the Fluke 8845A-EFPT Fine Point Extended Test Probe Adaptor Set

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8808A

Users Manual

1-10

AC Voltage Specifications

AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz,

add an additional error of 0.1 % of range, and for 50 kHz to 100 kHz, add 0.13 % of range.

Maximum Input ................................................. 750 V rms or 1000 V peak or 8 x 10

Volts-Hertz product

Measurement Method ....................................... AC-coupled true-rms. Measures the ac component of input with up to

1000 V dc bias on any range.

AC Filter Bandwidth ......................................... 20 Hz – 100 kHz

Common Mode Rejection................................. 60 dB at 50 Hz or 60 Hz (1 kΩ unbalance)

Maximum Crest Factor .................................... 3:1 at Full Scale

Additional Crest Factor Errors (<100 Hz) ...... Crest Factor 1-2, 0.05 % of full scale

Crest Factor 2-3, 0.2 % of full scale

Only applies for non-sinusoid signals

Input Characteristics

Resolution

Range

Full-Scale

(5-1/2 Digits)

Slow Medium Fast

Input Impedance

200 mV 199.999 mV

1 μV 10 μV 10 μV

2 V 1.99999 V

10 μV 100 μV 100 μV

20 V 19.9999 V

100 μV 1000 μV 1000 μV

200 V 199.999 V 1 mV 10 mV 10 mV

750 V 750.00 V 10 mV 100 mV 100 mV

1 MΩ ±2 % shunted by

<100 pf

Accuracy

Uncertainty

[1]

90 days 1 year

Range Frequency

23 °C ± 5 °C 23 °C ± 5 °C

Temperature

Coefficient/°C

Outside 18 – 28 °C

200 mV 20 Hz – 45Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005

45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005