Specifications

Model UT90A: OPERATING MANUAL
17
Accuracy:±(a% reading + b digits), guarantee
for 1 year.
Operating temperature: 18 - 28? .
Relative humidity:=75%RH.
A.DC Voltage
Range Resolution
Accuracy:
±(a% reading +
b digits)
200mV 0.1mV
2V 1mV
20V 10mV
200V 100mV
±(0.5%+2)
1000V 1V ±(0.8%+3)
Remark:
?Input impedance: 10MO.
?Overload Protection: 1000V DC or 750V AC
continuously measure(except 200mV 230V AC).
B.AC Voltage
Range Resolution
Accuracy:
±(a% reading + b
digits)
2V 1mV
20V 10mV
200V 100mV
±(0.8%+5)
750V 1V ±(1.0%+5)
Remarks:
?Input impedance: 10MO.
?Overload Protection: 1000V DC or 750V AC
continuously measure.
?Frequency response: 40Hz ~ 400Hz.
?Displays effective value of sine wave (mean
value response).