szh_init 发表于 2015-8-24 17:27:37

keithley2100和仪鼎M3500指标对比

同一个表，keithley和仪鼎给出的指标，不评论什么，看看就好{:142_381:}{:142_381:}

过客良驹 发表于 2015-8-24 18:06:08

最好还是拿吉时利自己原产的表来对比

曾经沧海 发表于 2015-8-25 08:24:32

仪鼎的指标比吉时利的要好很多啊，怎么就。。。。。。。。。。

shhjs 发表于 2015-8-25 09:31:15

国产表的指标也很高啊，怎么就。。。。。。。。。。

〆﹏熋訷悪鎩 发表于 2015-8-25 16:58:33

keithley自己研发的表 不需要调input R 要调都不是keithley orginal

iddqd2001 发表于 2015-8-25 17:37:35

{:139_271:}
Keithley 2100 = OEM PICOTEST M3500A
PICOTEST M3500A = modified Keithley 2000

iddqd2001 发表于 2015-8-25 19:31:05

〆﹏熋訷悪鎩, look to the 2100 Service Manual ! M3500A schematics is based on the Keithley 2000.
My topic: http://radiokot.ru/forum/viewtopic.php?f=10&t=103615

〆﹏熋訷悪鎩 发表于 2015-8-25 21:53:41

iddqd2001 发表于 2015-8-25 19:31
〆﹏熋訷悪鎩, look to the 2100 Service Manual ! M3500A schematics is based on the Keithley 2000.
My ...

The 2100 6.5 digital DMM without any Service Manualpico test may have one
As you said it's similar or base on keithley 2000,if thats true, It needn't adjustment the input R by the system manuul,the keithley 2000 autoadjustment the input R by the DC voltage range 100mV 1V 10v for 70Gohm input R and 9.9Mohm±1% for the 100V and 1000V range



Adjustment the input R by the system manuul is agilent stlye not the keithley's


I worked in keithley Service department for 5 years and quite sure about that
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