Fluke 77 IV [18/18] A fused 11 a 1000 v fast fuse 20 a overload for 30 seconds maximum 10 minutes rest

Model 77 Series IV

Users Manual

Function Overload Protection

[1]

Input Impedance

(Nominal)

Common Mode Rejection Ratio

(1 kΩ Unbalanced)

Normal Mode Rejection

Volts AC 1000 V >10 MΩ <100 pF >60 dB @ dc, 50 Hz or 60 Hz

Volts DC 1000 V >10 MΩ <100 pF >120 dB @ dc, 50 Hz or 60 Hz >60 dB @ 50 Hz or 60 Hz

mV 1000 V

[2]

>10 MΩ <100 pF >120 dB @ dc, 50 Hz or 60 Hz >60 dB @ 50 Hz or 60 Hz

Open Circuit Test

Voltage

Full Scale Voltage To:

6.0 MΩ 50 MΩ

Short Circuit Current

Ohms/Capacitance 1000 V

[2]

<8.0 V dc <660 mV dc <4.6 V dc <1.1 mA

Continuity/Diode test 1000 V

[2]

<8.0 V dc 2.4 V dc <1.1 mA

[1] 10

V-Hz maximum.

[2] For circuits <0.3 A short circuit. 660 V for high energy circuits.

Function Overload Protection Overload

mA Fused, 440 mA, 1000 V FAST Fuse 600 mA overload for 2 minutes maximum, 10

minutes rest.

A Fused, 11 A, 1000 V FAST Fuse 20 A overload for 30 seconds maximum, 10

minutes rest.