UNI-T UT57 Specifikace stáhnout pdf (Strana 8)

2-7 Frequency

Range Resolution Accuracy

20kHz 1Hz

(1.0% +20)

200kHz 10Hz

Input sensitivity: 200mV rms,

Max Input Scope: 30V rms.

Overload protection: 230V rms

2-8 Diode and Continuity Beeper

Range Remark Measuring Condition

Display Diode

Forward Voltage

Value, unit is "V"

Forward DC Current abt

1mA, Backward DC

Voltage abt2.8V

Beeper sounds when

Resistance < 30Ω.

Display the nearest

value, unit is "kΩ"

Voltage at open Circuit

abt 3.0V

Overload protection: 230V DC or AC RMS.

Model UT57: OPERATING MANUAL

8

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