UNI-T UT39C Especificações descarregar pdf (Página 14)

Measurement Operation (2)

Note

l If the value of voltage to be measured is unknown, use the maximum measurement

position (500V) and reduce the range step by step until a satisfactory reading

is obtained.

l The LCD displays “1” indicating the existing selected range is overload; it is

required to select a higher range in order to obtain a correct reading.

l In each range, the Meter has an input impedance of approx. 10MΩ. This loading

effect can cause measurement errors in high impedance circuits. If the circuit

impedance is less than or equal to 10kΩ, the error is negligible (0.1% or less).

l When DC voltage measurement has been completed, disconnect the connection

between the testing leads and the circuit under test.

Model UT33B/C/D: OPERATING MANUAL

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UNI-T UT39C Especificações Página 14