Accuracy Specifications; Dc Voltage; Ac Voltage - UNI-T UT90B Operating Manual

Model UT90B: OPERATING MANUAL
Accuracy Specification(1)
Accuracy: (a% reading + b digits),guarantee for 1 year.
Operating temperature:23
Relative humidity:<75%.
Temperature coefficient: 0.1 x (specified accuracy) / 1
A.DC Voltage
Range Resolution
200mV 0.1mV
2V
20V 10mV
200V
100mV
1000V
Remark: Input impedance: 10M
B.AC Voltage
Range Resolution
2V
20V 10mV
200V
100mV
750V
Remarks:
l Input impedance: 10M .
l Frequency response: 40Hz~400Hz.
l Display effective value of sine wave (mean value
response).
o
C~5
Accuracy
1mV
(0.5%+2)
1V
(0.8%+3)
Accuracy
40~100Hz:
1mV
(0.8%+5)
100~400Hz:
(1.0%+10)
40~100Hz:
1V
(1.0%+5)
100~400Hz:
(1.0%+10)
26
o
C.
Overload
Protection
230VAC
1000V DC
or 750V AC
continuous.
Overload
Protection
1000V DC
or 750V AC
continuous.
o
C.