Agilent Technologies DC140 Uživatelský manuál stáhnout pdf (Strana 10)

Digital multimeter specifications (continued)

Supplemental characteristics (continued)

AC current

Measurement method AC coupled true rms

Maximum input current 10 mA to 3.0 A DC or AC rms

Burden voltage and shunt resistance

• < 0.2 V, 10 Ω for 10 mA range

• < 0.2 V, 1 Ω for 100 mA range

• < 0.3 V, 0.05 Ω for 1 A range

• < 0.7 V, 0.05 Ω for 3 A range

Input protection Protected with 3.15 A/500 V, FF fuse

Crest factor

For < 5:1 errors included. Limited by the peak input and 100 kHz bandwidth. Maximum 3.0 at

full scale.

Peak input 300% of range. Limited by maximum input.

Response time

Approximately 2.5 s when the displayed reading reaches 99.9% AC rms value of the tested

input signal at the same range.

1. Any current measurement greater than 500 mA will have a temporary thermo-effect. If you wish to measure a smaller current or offset current

measurement immediately after a high current measurement, ensure that the U3606B is cooled down.

Resistance

Measurement method Two-wire, open-circuit voltage limited to < 5 V

Open circuit voltage < +5.0 V

Input protection 1000 V

rms

on all ranges, < 0.3 A short circuit

Response time Approximately 0.15 seconds for 1 MΩ and ranges below 1 MΩ

Low-resistance

Measurement method

Four-wire, the test current is sent from the FORCE terminals and resistance measured at the

SENSE terminals.

Input protection

• FORCE terminals: Protected with a 3.15 A/250 V FF fuse

• SENSE terminals: 1000 V

rms

on all ranges, < 0.3 A short circuit

Open circuit voltage < +8.6 VDC

Continuity

Measurement method 0.83 mA ± 0.2% constant current source

Open circuit voltage < +5.0 V

Audible tone

Continuous beeping when reading is less than the threshold resistance of 10 Ω at 1.0 kΩ

range

Input protection 1000 V

rms

on all ranges, < 0.3 A short circuit

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 18 19

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