作者: willchan 時間: 2013-9-26 21:42 標題: Accuracy of UNI-T UT61E
I bought a new UT61 E and have a few no. of new the resistor , capacitor and diode .
I found the value of them measured are quite different .
Any advise please C hing ?
作者: ahuo 時間: 2013-9-26 22:45
全部正常
400k 1%電阻阻值範圍系404000~396000 ohm
100V 係peak reverse voltage,而你系度緊forward voltage
電容一般誤差有20%, 所以100uF電容範圍系80uF~120uF
作者: willchan 時間: 2013-9-27 09:08
全部正常
400k 1%電阻阻值範圍系404000~396000 ohm
100V 係peak reverse voltage,而你系度緊forward voltag ...
ahuo 發表於 2013-9-26 22:45
C Hing how to measure peak reverse voltage for this meter
作者: jwong852 時間: 2013-9-27 21:57
回復 3# willchan
To measure the breakdown reverse voltage of diode. A multimeter cannot do the work, you should use this meter :
http://www.keithley.com/products ... highpower/?mn=2657A
作者: kafachan 時間: 2013-9-27 22:11
本帖最後由 kafachan 於 2013-9-27 22:13 編輯
回復 3# willchan
用Hi-pot Tester都得,用1-2ma 電流,電壓慢慢提升,有漏電就係peak 了.
或家電測試儀
可以最高耐压 :100V-2500VDC作者: XXMICHELLE 時間: 2013-9-27 23:12
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