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.
Summary of Contents for MT-1220
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Page 23: ...MT 1220 MT 1225 3 1 2 1 MT 12 2000 AD 1 1 A B 60Vdc 30Vac 3 1 5V AAA 600V...
Page 24: ...AC DC CAT 600 V European Union 1 2 600V 250V mA F200mA 250V A F10A 250V 2 2 1 LED...
Page 30: ...MT 1225 20 1000 1 1 0 Reading 3 digits 250V DC AC 5 5 1 5 2 F200mA 250V F10A 250V 3 x 1 5V AAA...
Page 32: ...2020 Prokit s Industries Co Ltd All rights reserved 2020001...
