的確,我的3458開始也不太穩,現在很穩了,已經很長時間沒有Calibrate了。
我曾經就這問題與個國外某專業人士交流過,他說非高穩的3458A經過4年后,都成為高穩的了:
All HP3458A's will meet Option 002 Specifications after only 4 years of use! Their references improve vastly with age!! Also, Option 002 means HP already aged the reference with a heating chamber for a proprietary length of time before installing it.