HTC DM 81, User Manual

Page: 3 / 8

3
Storage Temp.: -10
℃
～
50
℃
; Humidity: <85%
Accuracy Guaranty Temp.: 23
℃
±5
℃
; Humidity: <70%
IV. Specifications
1. DC Voltage
Range Resolution Accuracy
200mV 0.1mV
±
（
1.2%+5
）
2V 1mV
20V 10mV
200V 100mV
1000V 1V ±
（
1.5%+5
）
-- Input Impendency: 1MΩ@200mV&2V, effective @10MΩ for other ranges
-- Overload Protection: 250V for 200mV & 2V range, effective DC or AC 1000V for other
ranges
2.
AC Voltage
Range Resolution Accuracy
200mV 0.1mV ±
（
2%+5
）
2V 1mV ±
（
1.8%+5
）
20V 10mV
±
（
1.5%+5
）
200V 100mV
750V 1V ±
（
2%+7
）
-- Input Impendency: 1MΩ@200mV&2V, effective @10MΩ for other ranges
-- Frequency Range: 40Hz ~ 400Hz (40Hz~100Hz @200V/700V)
-- Overload Protection: 250V for 200mV & 2V range, effective DC or AC 1000V for other
ranges
-- Response: average, calibrated in RMS of sine wave
3.
DC Current
Range Resolution Accuracy
2mA 1μA ±
（
1.5%+5
）
200mA 100μA ±
（
2%+5
）
20A 10mA ±
（
3%+5
）
-- Overload Protection: 200mA/250V fuse, 20A range without fuse
-- Max Input Current: 20A (≤10 seconds)
--
Measured by the voltage drop: full range as 200mV