Higher input voltage: 9213 Thermocouple Device with CompactDAQ-9178

Hello,
We're currently using a NI-9213 thermocouple device with our cDAQ 9178 chassis. We need to take temperature measurements on pcb components such as voltage regulators and cathodes of diodes, thus would to use our 9213. However, we've noticed that input volage on the 9213 device is +/-78mV. Are there any options or methods to use the 9213 with thermcouples that possible be attached to components that may be as high as +25vdc?? Thanks for any ideas!

Use isolated thermocouples. They tend to be bulkier and have slower response times, but might be an option. Omega has 24 AWG thermocouples with PFA insulation rated to 250 C for example. They also have many other styles.
Lynn

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Problem with Set/Get volume of input device with single channel

from Symadept <[email protected]>
to Cocoa Developers <[email protected]>,
coreaudio-api <[email protected]>
date Thu, Dec 10, 2009 at 2:45 PM
subject Problem with Set/Get volume of input device with single channel
mailed-by gmail.com
hide details 2:45 PM (2 hours ago)
Hi,
I am trying to Set/Get Volume level of Input device which has only single channel but no master channel, then it fails to retrieve the kAudioDevicePropertyPreferredChannelsForStereo and intermittently kAudioDevicePropertyVolumeScalar for each channel. But this works well for Output device.
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I am pasting the downloadable link to sample.
http://www.4shared.com/file/169494513/f53ed27/VolumeManagerTest.html
Thanks in advance.
Regards
Mustafa
Tags: MacOSX, CoreAudio, Objective C.

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Does the iPad mini have a setting so it can be used with either 120 or 240 electrical current? If yes, how do you go about setting the desired input voltage? I will travel to Northern Europe and want to know if I will need a voltage converter.

Does the iPad mini have a setting so it can be used with either 120 or 240 electrical current? If yes, how do you go about setting the desired input voltage? I will travel to Northern Europe and want to know if I will need a voltage converter.

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WLS 9205 setting input voltage range

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Here is the equivalent information for NI-DAQmx (since the WLS-9205 does not use LabVIEW FPGA):
How Do I Set the Analog Input Gain using DAQmx?
Using Min/Max or High/Low to Set NI-DAQmx Channel Gain
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How do set up multiple devices with multiple graphs in labview

Hello,
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When you configure the DAQ Assistant, you will be first asked to select the measurement type. Assuming that you have voltage sensors because you have the 6009, you select Analog Input>Voltage. You then get a list of devices. Since you only have one, it should be listed as Dev1. Expand that and then pick the channels you have connected to the sensors. Just like it says at the bottom of the of the channel window, you can select multiple channels with <CTL> or <SHIFT> click. After you've done that, the next window is where you select your sample rate, number of samples, etc. You can also select a custom scale for each channel. This is where you would enter any formula you have from the sensor vendor in order to convert a voltage reading to scaled units.
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Message Edited by Dennis Knutson on 02-22-2007 03:33 PM
Attachments:
Split Signals.PNG ‏4 KB

Analogue input voltages railing to +/-32768

Adam
Hi,
I recently bought a RIO-7833R PCI card and am having weird problems with it.
I would like to use it to measure analogue voltages. However, even when nothing is connected to the card, the analogue input channels are railing to +/- 32768. I've written a very simple program to measure these voltages and it’s hard to see how there could be a bug in this code (see attached image). So, I'm thinking it has to be something with the driver of the card or some other bug in LabVIEW, or perhaps a setting on the card that needs to be changed.
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Thanks,
Attachments:
FPGA problem.jpg ‏170 KB

Hi Adam,
I understand you are getting some strange readings from the analogue inputs on your NI PCI-7833R.
From what you say I agree that it is unlikely to be a problem with your specific piece of hardware. I have had a search to see if there are any known hardware faults for this device fitting your description and didn't get any results.
I don't believe the driver will be creating a problem for such a simple task as long as you have the correct one for your hardware and OS installed. You can check that it shows up in the software section in MAX.
I would suggest then that you try using the known working analogue input project for your device in the LabVIEW example finder which can be found on the start up screen.
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Hope this helps
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Applications Engineer
National Instruments

Error when trying to edge-trigger to a input voltage smaller 300mVpp

The programm shown in a cut below (just a cut of it) reads multiple channels from the PXI5105. The program allows to choose between different triggers. When I choose edge-triggering and the value of the input voltage I am triggering to is smaller than 300 mVpp the program stops and sets an error. With the 'Highlight function' I found out that the error is set at the '1D WDT'-vi.
The error message:
ERROR
"Possible reason(s):
Driver Status: (Hex
0xBFFA4009)
A previous acquisition is still in progress. If you are
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while an acquisition is still in progress.
Status Code: -1074118647
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Attachments:
error1.jpg ‏120 KB

Well then that's not it.
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Device with AC coupling anti-aliasing and can connect to laptop

I am looking for a DAQ device with the the following features.
Two analog inputs
10kHz sampling rate per channel (min)
16bit resolution
AC coupling
+/- 10v input
Anti-aliasing filter
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Powered by laptop connection (a plus)
Do NI do any such device?Message Edited by mosher on 06-02-2005 03:53 AM
Message Edited by mosher on 06-02-2005 03:54 AM

Hi Mosher
There are PCI/PXI solutions to do what you require. For example you could use an S-series device or a DSA board. However a set-up for connection to a laptop is more tricky. The reason is that devices with these features are based around generally high end and therefore need to use the higher bus speeds of PCI/PXI.
Is there definitely a requirement to use a laptop, or would a small PXI system or desktop be ok instead?
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Analog input voltage fluctuation in myDAQ

-Hello !
I have a turbine blade rotation sensing and measuring device (i.e. picoturn) connected to AI4 pin of BNC 2110 I/O board. I am using a PXI-1033 chassis with PCI-6251 M series card in it. I have programmed an algorithm which acquires voltage from AI4 channel through DAQ Assistant and converts voltage into RPM.
Picoturn is connected to DC power supply (ranges 9 - 36V)
These are the following problems:
1. I will get error voltage readings if picoturn is connected to other channels except AI4 (i.e AI0,AI1,etc)
2. The reading of the voltage keeps on fluctuating between 0.49 and 0.51, in both the cases of when turbine is stationary and rotating.
3. If the power supply to picoturn is removed, even then I could see the fluctuations in the voltage reading from -0.0005 to 0.1 and above till I stopped running the program.
Could you please help me to solve these problems?
Attached is the VI of the program and manual of the instrument Picoturn.
Attachments:
Picoturn.pdf ‏515 KB
Analog_ RPM.vi ‏64 KB

Hello
What Error Voltages do you read when the picoturn is connected to other AI Inputs than AI4?
What are you using for the ground reference of your measurement?
Checkout this White-paper: http://www.ni.com/white-paper/3344/en/
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Regards
Corinne

PC-6023 MAX INPUT VOLTAGE

IN THE NAME OF GOD
I have a pci-6023E card and potentiometer . The ouput of the pot. is differential .
The (-)end is always 13.5 Volt and the (+) end is between 5to22 Volt. I connected the output of the pot. to the input of the card in dif mode and i could measure the output of pot( ie 13.5-(5to22) ) successfully.Is this a correct connection to the card?
The maximum working voltage of each input of the card , according to manual, is 11 volt, but my sensor (i.e pot.) outputs are 13.5 and (5-22) !!
I used BNC-2110 terminal in dif. mode for this exprement.
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thanks
Edward. Hb.

Thanks Mr. Alan A
I am "434343" memeber.
I recive your response to my question about "Max input voltage of PCI-6023E" .But I have some questions.
According to the "Data Acquistion Specification- a Glossary by Richard House" ( Application Note 092):
"Maximum Working Voltage (signal+common mode)= the highest voltage level that can be input to board without saturating the input."
And according to your response:
"measuring a signal with higher common mode voltage than that(11V) might not accurate"
But in may experiment with a potentiometer (floating differntial source with (-)13.5V and (+) 5to22V),I could successfully measure the signal without saturating and without error (Max error is about +/- 0.02 volt)!!
I think that the maximum working voltage of PCI-6023E is greater then 11 volt??!!
or my measurement has a little error.
I think that I don't need to use a signal conditioning circuit.
Please Help me.
Thans again.
Edward Hb.

Nexus 5548 - PFMA-2-PS_HIGH_VIN message on device with DC power supply

Hi,
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2014 Aug 25 06:41:11 MO-BPROD-AS-N5k-1 %PFMA-2-PS_HIGH_VIN: Input Voltage 1023
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2014 Oct 18 14:12:10 MO-BPROD-AS-N5k-1 %PFMA-2-PS_HIGH_VIN: Input Voltage 1023
exceeded maximum threshold of 250V for Power supply 1.
Strange thing is that power supplies at Nexus are DC (48 Volts), not an AC.
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At Nexus 6000 (we have Nexus 5500) System Messages document I found this:
Error Message PFMA-2-PS_HIGH_VIN: Input Voltage [dec] exceeded maximum threshold of 250V for Power supply [dec].
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Hi,
1. The connection setup looks fine to me for a single ended measurement - you may want to connect to 68 and 32 for differential measurements.
3. The example should be ready to take measurements
4. The Data Acquisition card forces the input range to a valid value - 8V is not a valid range and it will be coerced to 10V - this is expected.
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Hope this helps!
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Applications Engineering
National Instruments India
LabVIEW Introduction Course - Six Hours
Getting Started with NI-DAQmx
Measurement Fundamentals

Set high input impedance on Tektroniks DMM4040

I'm using a Tektroniks DMM4040 with SE to log voltage data. When the DMM is used in manual mode, there is an option for high input impedance (>10 GOhm) when measuring potentials.
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Thanks in advance !
marc
Solved!
Go to Solution.

Hi Marc,
I apologize, that is actually the screen for the "NI-SCOPE Acquire" step. I have checked my resources and I can't seem to find any way to change the input impedance on a DMM/Switch Acquire step.
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Attachments:
Picture.JPG ‏314 KB

How can I do live streaming with a Mac Book Pro 2011, using a new model of Sony HD camcorder which does not have firewire out/input? it comes only with a component video output, USB, HDMI and composite RCA output?

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Req any examples of high to use midi controller/keyboards with Labview TIA

Req any examples of high to use midi controller/keyboards with Labview TIA

[email protected];
Check the following:
Communicating with a Windows MIDI Device in LabVIEW
Regards;
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www.vartortech.com

Higher input voltage: 9213 Thermocouple Device with CompactDAQ-9178

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