Fluke 45 Manuale Utente Scaricare il pdf (Pagina 106)

Users Manual

DC Voltage

Resolution AccuracyRange

Slow Medium Fast (6 Months) (1 Year)

300 mV

3 V

30 V

300 V

1000 V

—

10 µV

100 µV

10 mV

100 mV

100 µV

1 mV

10 mV

100 mV

1 V

002 % + 2

0.02 % + 2

0.025 % + 2

100 mV

1000 mV

10 V

100 V

1000 V

1 µV

10 µV

100 µV

1 mV

10 mV

—

0.02 % + 6

0.025 % + 6

Input Impedance

10 Me in parallel with <100 pF

Note

In the dual display mode, when the volts ac and volts dc functions are

selected, the 10 M

Ω

dc input divider is in parallel with the 1 M

Ω

divider.

Normal Mode Rejection Ratio

>80 dB at 50 Hz or 60 Hz, slow and medium rates

>54 dB for frequencies between 50-440 Hz, slow and medium rates

>60 dB at 50 Hz, fast rate (Note: Fast rate has no filtering)

Maximum Allowable AC Voltage While Measuring DC Voltage or (AC + DC)

Voltages

Peak Normal Mode SignalRange Max Allowable Peak AC

Voltage

NMRR* >80 dB† NMRR >60 dB†

300 mV

3 V

30 V

300 V

1000 V

100 mV

1000 mV

10 V

100 V

1000 V

15 V

1000 V

15 V

50 V

200 V

15 V

300 V

1000 V

* NMRR is the Normal Mode Rejection Ratio

† Normal Mode Rejection Ratio at 50 Hz or 60 Hz ±0.1 %

Common Mode Rejection Ratio

>90 dB at do, 50 or 60 Hz, (1 ke unbalanced, medium and slow rates)

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 121 122

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Fluke 45 Manuale Utente Pagina 106

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