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[c]FP-SG-140 Returns Noisy or Fluctuating Measurements Problem: Why does my [c]FP-SG-140 return noisy or fluctuating measurements? Solution: National Instruments recently discovered that revision G and earlier FieldPoint and Compact FieldPoint [c]FP-SG-140 modules can exhibit abnormal fluctuation in their readings. URL: http://digital.ni.com/public.nsf/allkb/0461C1946084BA74862573530071BA4F

[c]FP-RTD-124 Returns Noisy or Fluctuating Measurements Problem: Why does my [c]FP-RTD-124 return noisy or fluctuating measurements? Solution: National Instruments recently discovered that FieldPoint and Compact FieldPoint [c]FP-RTD-124 modules may take noisy or fluctuating measurements at power up. Often, measurements stabilize after several seconds. URL: http://digital.ni.com/public.nsf/allkb/3784655EFDDDE51E862572CF007A7D62

如何增加FieldPoint或者cRIO RTD模块的范围？ 我有一个RTD，其电阻值超出了我的RTD模拟输入模块指定的测量范围。可否扩展最大阻值以使我的RTD能够测量？ URL: http://digital.ni.com/public.nsf/allkb/3437EF0534231DEC482572BA0012011F

Why Do My [c]FP-TC-120 Modules Keep Failing Calibration? I am using Calibration Executive to check the calibration of my [c]FP-TC-120 modules. Every time I run the test, all of my thermocouple modules fail the negative tolerance test. I found this suspicious, so I looked into the specifications. For the 20mV test, the pass/fail limit is +/-10uV but URL: http://digital.ni.com/public.nsf/allkb/2E444F0A014D4B95862572A30068CC27

如何使用NI的产品测量电流？ 我想进行电流测量，但是我不知道哪种NI产品可以测量电流并且如何测量？ URL: http://digital.ni.com/public.nsf/allkb/D84290C812ED19164825726700401FB7

哪些美国国家仪器的产品可以被用来作为电流输出？ c[FP]-AIO-600 - 8通道，单端参考地，模拟输入/输出混合模块，内部更新率可达1. URL: http://digital.ni.com/public.nsf/allkb/51560496185576ED4825725D002D9E45

[c]FP-TC-120的电磁抗干扰性 当[c]FP-TC-120暴露在电磁场中时，传感器会感生出电压，这会引入错误数据。 URL: http://digital.ni.com/public.nsf/allkb/2070E4D82096922B4825725C00322D42

为什么在 FieldPoint FP-TC-120的热电偶输入通道上发现有电压输出？ 当我用万用表去测量FP-TC-120的热电偶输入通道时，我测到了一个电压输出。为什么没有热电偶连接时，我能从热电偶输入通道测到一个电压？ URL: http://digital.ni.com/public.nsf/allkb/6C276A563855DE0E4825725C00314C67

当接上热电偶时，为什么[c]FP-TC-120的LED不亮？ 当我将热电偶接上[c]FP-TC-120模块时，为什么表明热电偶已连上的红色LED不亮？我怎么才能使LED亮呢？ URL: http://digital.ni.com/public.nsf/allkb/B368D960358584234825725C002F8714

我怎么提高FP-TC-120的测量精度？ 在 FP-TC-120的数据手册上，0.2 C 错误被描述为 '当使用FP-TB-3等温底座时，冷端传感器温度和接线端实际温度间的误差', 有没有什么测量方法可以最小化这个误差？ URL: http://digital.ni.com/public.nsf/allkb/E08725D6B8FA693E4825725C0033D773