Fluke 77 Uživatelský manuál stáhnout pdf (Strana 16)

Introduction and Specifications

Specifications

1-7

Overload protection for all functions and ranges: Rated voltage.

Function Input Impedance (Nominal)

L, K

>10 MΩ, <50 pF

Common Mode Rejection

Ratio (1 kΩ Unbalanced)

Normal Mode Rejection

>120 dB at dc, 50 Hz, or 60 Hz >60 dB at 50 Hz or 60 Hz

>60 dB dc to 60 Hz

Open Circuit Test Voltage Full Scale Voltage

To 3.2 MΩ 32 MΩ

<3.1 V dc

<2.8 V dc (typical)

<440 mV dc

<420 mV dc

(typical)

<1.4 V dc

<1.3 V dc

(typical)

Open Circuit Test Voltage Full Scale Voltage

G R

<3.1 V dc 2.0 V dc

Short Circuit Current (typical)

300 µA

G R

400 µA

Current (typical)

0.0 V

0.6 V

1.2 V

2.0 V

0.4 mA

0.3 mA

0.2 mA

0.1 mA

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Fluke 77 Uživatelský manuál Strana 16