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发表于 2023-3-25 16:04:34
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本帖最后由 dirtyacc 于 2023-3-25 16:05 编辑
https://lygte-info.dk/review/DMMOwon%20B41T%20UK.html
真表我没用过,一个专门评测万用表的老外博客,有几个挺优秀的,如果200元应该是吊打ut61e的,不可能是这个价格能大量买到新的
Frequency input can handle a DC offset of +/-1.2V with 0.2Vrms input, but needs a few seconds to adjust.
At 100mVrms frequency input range is from 2.1Hz to 800kHz
At 1Vrms frequency input range is from 2.1Hz to 62MHz
At 100mVrms AC input frequency range is from 2.1Hz to 150kHz
Duty cycle works from 5% to 95% at 100kHz with 1Vpp, precision is within 6.0 (Due to the offset adjustment the readout takes some seconds to be stable)
Duty cycle works from 5% to 95% at 100kHz with 2Vpp, precision is within 4.0 (Due to the offset adjustment the readout takes some seconds to be stable).
1 VAC is 5% up at 110kHz (RMS will not work at the frequency).
110K 的5%误差交流频响
Ohm, continuity, diode and capacitance
Ohm needs about 1.0s to measure 100ohm
Ohm is -0.39V open and -0.34mA shorted
Continuity is very fast (3ms).
Continuity beeps when resistance is below 30ohm
Continuity is -3.13V open and -1.8mA shorted
Diode range uses 2.8V, max. display is 1.9V at 0.64mA, max. current is 1.9mA shorted
10uF takes about 0.8 second to measure.
70000uF takes about 13 seconds to measure.
Rated overload protection is 250VDC or equivalent AC
电阻电容速度都和ut61e+一样水平,他也有ut61e的评测(https://lygte-info.dk/review/DMMUNI-T%20UT61E%20UK.html)
Current consumption of meter is 3.5mA in Hz, 4.3mA in DC 5.4mA AC (16mA with backlight, 13.3mA with Bluetooth and 24mA with both).
用电比ut61e+少很多,开了蓝牙才和ut61e+差不多。
基本就是ut61e+少了残废AC+DC,多了温度和蓝牙和待机,还有不错的显示屏,还有一个随机软件也比ut61e+的好
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