Vst 5645r PXI gain / attenuation calibration chain RX TX

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  As soon as Cal Exec implements the PXI-6552 module then will take a reading of the 3458A what an SRQ message on the 3458A, then the error message above appears in Cal Exec. I tried to reinstall the drivers OR DMM. The voltage on the meter screen is good for the first stage (5.5 volts DC), but it times out and gives me the error as indicated.

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• withdrawal of a th ack PXI module

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  I found a way to read the configuration of my PXI-1044.  I would read the section external calibration of the Calibration tab in MAX for my PXI-5114 and PXI-4065 (last calibrated and recommended the next Dates of calibration) using Labview to read.  The preferred format, I'm looking is similar to the configuration of my PXI-1044 which retrieves data in a format delimited by tabs.  Thanks in advance for any information that can throw this forum on this topic.

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  Hi Dennis,

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  I'm having a problem of reliability using my 4071 Pxi digitizer mode.

  I have a number of tests that use the SMU-6363 (usually configured for DC) analog output to provide a stimulus for our own device, which has a number of a/d converters.  We use the PXI system for calibration and testing.

  1. I select a voltage ranging from tensions.

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  6. the average waveform and compare the value of ADC measured by applying tolerances etc.

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  The DMM and ADC are connected to the same point and both are referenced to ground, and as I said before only the parasitic capacitance and resistance (cable).  We use a matrix of switching (PXI-2530 (b) to make these connections.  We almost always use 51/2 digits and 10V range for data acquisition.

  Hello

  I thought about it and was going to repost but am distracted.

  The device with the ADC also has a mux and switches the mux to an internal node.   It only switches when measuring and is open at other times.   There is a race condition where the acquisition starts too early and maintains the acquisition after that the switch is open.   Unfortunately I don't have the option to trigger.

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• Emulator CVS displays bitmap color black and white images

  I use a VBAI2009 inspection on 1454 CVS which uses a camera firewire AVT Guppy F - 036C. This system is on a production machine inspect the product we make. VBAI uses the legacy IMAQ for IEEE 1394 on a CVS not the driver IMAQ-dx cameras. The VBAI script contains several steps function color inspection. To get the AVT camera to display the color, I had to install the files of MAX camera using the Bayer color tab because Bayer settings are not accessible from the driver on the CVS IMAQ. I'm no adjustment of the camera of the VBAI. This configuration works well and has worked for 6 months on the machine of production without any problem.

  Now, I need to edit the VBAI script but can't stop the machine to make the changes and test the program. I captured images bitmap using MAX during the inspection was installed 6 months ago and they stored on my host for just such an occasion. I am using these captured images and the CVS emulator in VBAI to make the changes to the program offline. I performed the inspection under the CVS emulator and the acquisition stage is configured to point to the captured bitmap images using the button Configure Simulation settings. The problem I have is that bitmaps are displayed as black & white in the emulator, even if these are images of color seen with paint. I can't find a way to fix this. Is - this problem as a result of using the parameters of Bayer to create the image color or something else in the emulator? The emulator, no installation of color image treats?

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  The stages of acquisition camera record video mode information used to acquire images. If you use these steps in emulation mode, it converts the type size and the image to match what has been gained for calibration and processing step use the same type of image. Looks like than the stage thought that the image was mono, even if you got it to be color. I will consider how it could have be saved incorrectly when you use the settings of Bayer. In the short term, you can disable the acquisition stage (don't delete so you do not lose the camera settings saved in step) and use a stage of acquisition of simulation or a new phase in the acquisition of 1394 and won't force the image size/type.

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• error "device could not be calibrated" to PXI-5105

  Hello

  I want to calibrate my PXI-5105. But I get an error in MAX and a calibration vi. I tried to install NO-SCOPE 4.1.3 on PXI, but that does not solve the problem. I have labview time real 13.0.1 installed. I enclose the error messages.

  See you soon,.

  Syed

  Syed,

  So there is not a lot of good information on this error.  Automatic calibration works by connecting a known signal that is embedded in the digitizer at the ADC and to adapt the constants and phase shift.  The 234107 error means that there is a problem with this calibration signal or the signal to the ADC path, etc.  This known signal is calibrated during the external calibration and since your device is off external calibration (calibration necessary since February 2011), the problem is probably the calibration signal drifted too far from its known value.

  To resolve this problem, you will need to send the jury in external calibration, and I would recommend National instruments, send it because if there is a problem with the hardware with the Commission, we might be able to solve this problem, as well as of him have calibrated.

  I hope this helps.

  -Nathan

• Self-calibration OR VST

  The self-calibration for VST (niVST self Calibrate.exe) utility has a button "Cancel".  Is it possible to interrupt a self-cal, that was started by calling the niVSTCal_SelfCalibrate function in niVSTSelfCal.h?

  Hello, where do you find the niVST self Calibrate.exe?

  I notice that the function VSTSelfCalibrate in LabVIEW (Instrument i/o"instrument Drivers' NOR calibration VST' Self - Calibrate.vi is not an abandonment of entry, so I think that the text equivalent does not have this option.)

• How we control the gain of the digitizer PXI-5102 factor?

  Dear Sir, I have a question on the gain settings in the wfmInfo structure that is returned when you use fetch or read functions. Dose it be determined by the digitizer (internal) automatically when you set the attenuation range and vertical probe? How he determined? Thank you very much for your help.

  Double post.  See the answer here.

• Calibration of the PXI - 2548 relay module

  #1) where can I find the date when my PXI-2548 relay module was first calibrated?

  (#2) y has different ways to calibrate this relay module and if yes what are?

  (#3) combien of time should this relay module be calibrated?

  Thank you

  Julian

  Hi Julian,.

  NI PXI-2548 requires no calibration because it does not all electronic components that can be calibrated.  Therefore, there is no calibration carried out, there is no way to calibrate the module, and there is no timetable for calibration.

  Note that you can compensate for the loss of insertion of the passage on a per path basis.  These offsets typically include loss through cables and are carried out when the Board is placed in the system.  It is more than compensation compensation for 'switches + connectivity' system rather than a Board calibration; It is dependent on the system.  I recommend you do this compensation measure before proceeding with automated tests.

  I hope this helps!

  Chad Erickson

  Switches Product Support Engineer

  NOR - USA

• What is the maximum voltage of the members of the PXI 4461 gain 20 dB?

  I use a Board, PXI-4461 sample sine wave with an amplitude of slightly greater than 1 V peak (1.0005 V). The gain of the Board of Directors is set at 20 dB and the input range should be from-1 to + 1 V V! That's why I expect that see a saturation of the converter ADC when the input signal is greater than 1 V. However, I do not respect this saturation of the output value, and I don't understand why?

  Could someone explain that to me?

  Thank you in advance.

  Frédéric

  Hello Frederic,.

  almost all NI DAQ devices I know has a small "margin of safety" in each range given acquisition (usually about 0.5-2%), allowing you to accurately measure the voltage specified limit.

  The exact width of this margin is not explicitly mentioned, probably to prevent users to use this line on a regular basis.

  In short: there's a small safety margin, but do not count on it when designing measurement applications. ;-)

  Best regards
  Sebastian

• Change in gain on the PXI-6221

  Hi all

  I apologize in advance for a newbee question. I recently started to work on the measurement of force in the laboratory of fluid mechanics. We got a load cell 3 - axis with 0.5 mV/V, power per channel, which I hung on SG24, which sits on SC-2345, connected to the PXI-6221.

  As far as I understand, after the signal comes out SG24 unit, it is amplified to 500mV and powered to PXI card, which in turn have 4 possible gains of 0.2V, 1V, 5V, 10V. To keep the resolution as fine as possible, I'd be interested take a +/-200mV gain, which in turn cut my signal more then half but keep a resolution ~ 6.1uV, I like not having the range, my forces expected fall shorter reach.

  The problem is that I can't find neither manual or MAX a way how truly change the gain. If I open MAX > NOR-DAQmx devices > PXI-6221, I see no possibility to change the input voltage. I can see +/-10V in the Test Panel, but if I change to +/-200 m it resets at + /-10, after I close and reopen again.

  Can someone help please on this issue?

  Thanks in advance

  Hi Chris,

  You made my day )

  Thanks a bunch!

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  Meathods suggested? Are there features of RSSI measurement?

  A known signal.

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