UNI-T UT805 Especificações descarregar pdf (Página 51)

Model UT805: OPERATING MANUAL

A. DC Voltage (Calibrate both positive and negative

polarity)

CALIBRATION PROCEDURE

The calibration must be done in manual ranging

mode.

Power-up the Meter and allow it to stabilize for one

hour.

The accuracy of the original source must be 1/3 better

than the calibrated range

Short circuit the test lead, press REL to

display “0”, input 1000V, then press CAL

button.

The Meter displays: (--CAL--) (-HI-END)

(1000.00V), calibration finished

1000V :

Short circuit the test lead, press REL to

display “0”, input 190mV, then press CAL

button.

The Meter displays: (--CAL--) (-HI-END)

(190.000mV), calibration finished.

Short circuit the test lead, press REL to

display “0”, input 1.9V, then press CAL

button.

The Meter displays: (--CAL--) (-HI-END)

(1.90000V), calibration finished.

200mV:

2V :

Short circuit the test lead, press REL to

display “0”, input 19V, then press CAL

button.

The Meter displays: (--CAL--) (-HI-END)

(19.0000V), calibration finished.

Short circuit the test lead, press REL to

display “0”, input 190V, then press CAL

button.

The Meter displays: (--CAL--) (-HI-END)

(190.000V), calibration finished

20V :

200V :

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UNI-T UT805 Especificações Página 51