Pro'sKit MT-1220, Руководство пользователя

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4.2 Precision Indicator
Accuracy:

(

r digit)
The accuracy warranty will run for 1 year upon the ex-factory date.
Reference conditions: Ambient temperature is between 18
℃
and 28
℃
and relative humidity is no more than 80

.
4.2.1 DC Voltage
Measuring range Resolution Accuracy
200mV 0.1mV
±(0.5% R 5 digits)
2V 1mV
20V 10mV
200V 100mV
600V 1V ±(0.8% R5 digits)
Input impedance:1M

Maximal input voltage: 600V DC or AC valid value
4.2.2 AC Voltage
Measuring range Resolution Accuracy
200V 100mV ±
（
1% re10 digits
）
600V 1V ±
（
1.2% re10 digits
）
Input impedance:1M

Maximal input voltage: 600V DC or AC valid value
Frequency response: 40Hz-400Hz
4.2.3 Electric Resistance
Measuring range Resolution Accuracy
200

0.1

±(1% R 3 digits)
2k

1

200k

100

2M

1k

20M

10k

±(1.5% R3 digits)
Overload protection: 250V DC/AC
Open-circuit voltage: 2.4V
4.2.4 Diode Test
Functions Testing conditions
Diode test
Forward DC current: approximately 0.8mA;
Open-circuit voltage: approximately 2.4V.
The display unit shows the approximate value of the
diode's forward voltage drop.