![background image](/i/uni-t/145359/uni-t-utm-1209a-ut209a/h/uni-t-utm-1209a-ut209a-039.png)
37
38
UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
B. AC Voltage
Range Resolution
Accuracy
Overload protection
400mV
0.1mV ±(1.2%+20)
4V
0.001mV
40V 0.01V
±(1.2%+3) DC1000V/AC750V
400V 0.1V
750V 1V
±(1.2%+5)
Remarks:
● Input Impedance: 10M
Ω
● Frequency Response: 40Hz~400Hz
● Change to AC:
UT207A/208A: Couple AC and average value response method. UT209A:
Couple AC and True RMS response method. Input sine wave to adjust. Non
sine wave must follow the below data to adjust:
Peak factor: 1.4~2.0, add 1.0% on the stated accuracy
Peak factor: 2.0~2.5, add 2.5% on the stated accuracy
Peak factor: 2.5~3.0, add 4.0% on the stated accuracy.