5900 diff amp clipping to 11V

I tried to measure an IEPE sensor (Simulator) released in parallel to the amplifier signal conditioner. Looking for a scope, I got on with a nice 2Vpp sine 12V bias.

If I place a PXI 5922 with a PXI-5900 differential preamplifier for 40Vpp inputrange.

I need to measure in DC mode. The output of the 5900 is clipping in connection 11V.  (CH + to report, CH-shortcut to GND). I tried a 5900...  all the same

Another point: the reading input range gives me 160V... Oops bug?

OR-Scope 3.8.2 LV2011

Another question: what is the output impedance of the 5900? 50 ohms?  It is not indicated in the specifications.

Well, I think I found the solution for the clipping.

And there's nothing wrong with the specification of the 5900, however, the definition of the commune of voltage range was missleading me.

While the definition of "municipality" of the common voltage in a differential measurement is Vcm =(Vpos+Vneg)/2 "Common Voltage Range" is not the possible range of common blood, instead of the definition (by NEITHER?) I found here from the States:

"The range of common mode voltage is defined as the oscillation of the admissible maximum voltage on each entry from the ground of the measuring system. Violating this constraint translates not only error measurement, but also of the possible damage to the components on the Board. »

Something that should find its way into the specs of the understanding device and Specifications of Acquisition of data - a glossary

So I can't measure a 12V GND signal with my 5900 input of the unit gain amp is probably capture one

Leaving the input of 160V range calculated by NI_SCOPE... CAR?

Tags: NI Hardware

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