NI 9237 with varriable resistance

Dear All,
I am interfacing NI 9237 module with a vaiiable resistance to just give a demo how to read analoge sensor ,
I am not able to get the values of my varriabe resistance(POT)
I just want to display the variation in a numeric text box as i change the value of POT
I  vave made the following connection
VOUT of POT-----------> AI+
EX+--------------------------->5v
EX- --------------------------> GND
I ave not connecteda any other pin of 9237 can you please send me pin connections how do I connect 9237 signals with POT to just see value on text box
I am using scan Interface and using AI3 channel to see the result
rupesh
Attachments:
block.png ‏53 KB
block2.png ‏49 KB

This is a transmitter. That means: it is only an electronic module to generate a current of 4-20 mA from a resistance temperature sensor PT100. You cannot connect this to a NI9217, it needs a Pt100 temperature sensor, they usually come together.
What is your temperature sensor connected to this? Please provide information about it so I can help more precisely. Read the manual, that should have a Input PT100 as shown in the first page: http://www.status.co.uk/files/manual/37.pdf
Then you have 2 options:
1) If you have already a NI 9217 module, you can connect your PT100 temperature sensor directly without using a transmitter. That means: Remove the transmitter, simply connect red cable (1) to RTD+, white cable (2) to RTD- and the second white cable (3) to COM. Use the sample NI 9217 program provided in the samples folder of NI.
2) If you want to use a PT100 sensor + this transmitter, you need a current input module such as NI 9208. There you will read a current of 4-20 mA and convert this to a temperature reading. Again use the sample NI 9208 program provided in the samples folder of NI.
I hope this will help.

Similar Messages

  • 9237 with full-bridge load cell: load cell_null_off_shuntcal.vi throws error 200077

    Hi,
    I'm trying to use the example
    load_cell_null_off_shuntcal.vi  with a full-bridge load cell (Honeywell
    Model 31, unamplified). I am using LabView 8.6,  cDAQ-9172 and NI9237. The
    load cell is connected to pins 2,3,6 and 7.
    The inputs for the VI front panel
    are: internal excitation10V; mV/V 2.1492 (calibration sheet); max weight 10
    lbs; bridge resistance 350 ohms (Honeywell specs); 9237 internal shunt
    resistance 100 kohms; shunt location R4 (default setting). I have selected
    "Do offset null" and "Do shunt cal".
    This is the error I receive:
    Error -200077 occurred at DAQmx
    Perform Shunt Calibration (Bridge).vi:1 Possible reason(s):
    Measurements: Requested value is not
    a supported value for this property.
     Property:
    AI.Bridge.ShuntCal.GainAdjust
    You Have Requested: -61.980405e3
    Valid Values Begin with: 500.0e-3
    Valid Values End with: 1.500000
    If the "Do shunt cal"
    green button is not selected, there is no error. I understand that the Gain
    adjust value should be approx 1, whereas the one I get is much larger. The  subVI  DAQmx PerformShuntCalibration
    (bridge).vi contains a "Call library function node" which I don't
    know how to interrogate.  
    Has anyone else had experience
    with this error? Do you have any advice on:
    1)    
    How to "see" the calculations being
    perfomed inside the "call library function node"?
    2)    
    What the correct shunt element
    location for a full bridge load cell is? (although changing this location does
    not eliminate the error, I can't find this info).
    3)    
    Anything I may be doing wrong with
    my inputs to cause this error?
    Thanks,
    Claire.
    Solved!
    Go to Solution.

    Hi Claire,
    You have to physically connect the SC terminals to one arm of the bridge (normally R3). The terminal is not provided for connecting external resistors.
    See example 
    C:\Program Files\National Instruments\LabVIEW 8.6\examples\DAQmx\Analog In\Measure Strain.llb\Cont Acq Strain Samples (with Calibration) - NI 9237.vi
    "A VI inside a Class is worth hundreds in the bush"
    യവന്‍ പുലിയാണു കേട്ടാ!!!

  • How can I list nodes with CQCs resistered to a cache?

    I am dealing with some slowness which I believe is due to too many apps registering as CQCs. Is there a way to list which CQCs are registered to a cache and how many updates/sec or bytes/sec each is pushing out?
    Thanks,
    Andrew

    Hi Andrew,
    I did not know of a way to do this. I have asked around and have not found any good answers yet.
    There was a suggestion that since from the server point of view a CQC would look like a listener you could see a few stats that are tracked via the StorageManager MBean.
    hth,
    -Dave

  • 9237 + full-bridge load cell: load cell_null_off_shuntcal.vi - error 200077

    I'm trying to use 
    load_cell_null_off_shuntcal.vi  with load cell (Honeywell Model 31,
    unamplified). I am using LabView 8.6,  cDAQ-9172 and NI9237. Inputs:
    internal excitation10V; mV/V 2.1492 (calib. sheet); max weight 10 lbs; bridge
    resistance 350 ohms (Honeywell specs); 9237 internal shunt resistance 100
    kohms; shunt location R4 (default setting). Have selected "Do offset
    null" and "Do shunt cal".
    Error -200077 occurred at DAQmx
    Perform Shunt Calibration
    (Bridge).vi:1 Possible reason(s):
    Measurements: Requested value is not
    a supported value for
    this property.
     Property:
    AI.Bridge.ShuntCal.GainAdjust
    You Have Requested: -61.980405e3
    Valid Values Begin with: 500.0e-3
    Valid Values End with: 1.500000
    If "Do shunt cal" green
    button not selected, no error. Gain adjust should be approx 1. subVI 
    DAQmx PerformShuntCalibration (bridge).vi contains "Call library function
    node" which is locked (?).  
    Any ideas?
    What is the correct shunt element
    location for a full bridge load cell? Changing this location does not eliminate
    error.
    Solved!
    Go to Solution.

    Hello CFJ,
    The problem is most likely in your external connections of the NI 9237 and the load cell.  As referenced in the NI 9237 Operating Instructions and Specifications, page 9, the SC+ and SC- pins should be connected across the resistor specified in the DAQmx Perform Shunt Calibration (Bridge).vi (in the case of a full bridge it would be R3).
    Let me know if you are still having issues with your calibration.
    Message Edited by Dan_K on 01-22-2009 04:31 PM
    Regards,
    Dan King

  • Give me an E72 with a dual sim

    My dream phone!
    A nokia e72 with a dual sim.  
    Only a real traveller with business interest in multiple countries will know the true value of a dual sim phone.  I have been using nokia phones for over 15 years now.  I always carried 3 to 4 phones at any given time, until 2006 when I stumbled upon a chinese make dual sim touch phone.  It worked alright ( I mean it served the purpose) but the user interface was lousy, it had no wifi and couldnt sync my contacts.  And worst of all it just stopped working after a few months.  Then came Samsung D880.  A very good phone indeed ! but again no wifi.  So am currently using the D880 for my overseas trips. I have one etisalat sim installed permanently in the second slot of the D880 and I insert a sim slot 1 wherever I go. But I love my Nokia e71 and can not do without it, so I have a second etisalat sim with the same number installed in my e71.  So when I am in Dubai, I switch the samsung D880 off. and use my e71.  When I am abroad, I put my e71 in offline mode and switch on my D880.  Keeping y e71 offline, still allows me to access my emails thru wifi when I am outside my office or home.
    I also looked at the new samsung touchscreen dual sim phone, but was not impressed.  No wifi ! and I hate using a stylus.
    So until such time Nokia brings out a dual sim phone with wifi and all the other usual great features, I guess I have to stick to my samsung d880 for my travel needs.  And as for my e71, I am happy with it but will surely grab an e72 as soon as it appears in the stores.  I did a mistake of buying the N97 last month, got carried away actually, but after a couple of days of playing with the resistive touch screen I gifted it off to some one dear.  Don't get me wrong, the n97 is the king of smartphones as on date in the market, with its awesome features and 32 gigs of memory, but it simply is not for me.  
    Cheers
    Shaks

    There is a very high demand for a Dual SimCard GSM phone. Many like me have to carry two mobile phones because of:
    1. Mobile operation connectivity in different areas
    2. Frequent travel domestic and international
    3. Different business and personal numbers
    4. Price of calling different mobile networks
    5. Old phone number which needs to be gradually phased out
    6. Support engineers having to carry bersonal and support mobile after office hours... etc
    These are all compelling arguments for having products with dual sim capability and this perhaps why Smasung has launched 5 different dual sim models in a short time span.
    I dislike samsung because of its usability and try to only stick with IPhone or Nokia when it comes to mobile phones.
    India is a huge consumer base for mobile phones and a dual sim phone in my opinion can go a long way to increase the market share of apple.
    Web search engines show a large number of search hits for dual sim phone and dual sim ghost cards. For travelers like me it has become a higher priority to choose a mobile phone with dual sim capability over camera and other features.

  • NI cDAQ-9172 is not recognizing a NI 9237

    I am trying to use a NI 9237 with a NI cDAQ-9172 to measure pressure using a pressure transducer. When I plugged the 9237 into the cDAQ it was not recognized. As I remember with this piece of eqiupment, once a module is plugged in it should be recognized and configured. Any ideas?

    Hi Matthew,
                   I'm wondering, do you have the driver installed?  As well, is your chassis recognized in Measurement and Automation Explorer?  Does the New Found Hardware issue ever pop up when you connect your device? Thanks!
    aNItaB
    Applications Engineer
    National Instruments
    Digital Multimeters

  • NI 9237 Not reading correctly

    Hello,
    I have a NI 9237 with a Compaq DAQ Chasis.
    I have hooked up a power supply to the AI+ and AI- inputs.
    When I read my signal from the NI 9237 with MAX I get the attached waveform.  I don't see this waveform when I hook up my scope to the input signal.  The Peak of the waveform seems to be the correct measurement.
    Any Advice?
    Thanks
    Dan

    Hello Dan,
    From the looks of the waveform you included you are getting a current path somewhere. The 9237 is a bridge based acquisition module. There are internal completion resistors that are used depending on which bridge mode you select. The closest you can get to a DAQ device in differential mode would be to use Full Bridge. This should result in a signal close to the square wave you would like to see (I'm assuming this is the goal). You will have to take into account excitation voltage and some other factors to make the magnitudes correlate with your scope results, but the overall shape should be correct.
    I have a few questions as well:
    1. When you say power supply, are you referring to a signal generator?
    2. What bridge mode do you currently have selected?
    3. Was I right to assume you should be seeing a standard pulse (square wave) waveform?
    Let me know more about your application; hopefully we can get you the results you expect!
    Regards,
    Chris Behnke
    Sr. RF Engineer
    High Frequency Measurements

  • "HP34970A Conf Resistance.vi" causes error message -113

    I'm using Labview 6.1 to read voltage, frequency, resistance and temperature readings from an HP34970A (with 34902A 16-channel multiplexer).
    Every time the "HP34970A Conf Resistance.vi" is completed it causes the HP34970A to display error -113: "Undefined header. A command was received that is not valid for this instrument. You may have misspelled the command or it may not be a valid command. If you are using the shortened form of this command, remember that it may contain up to four letters. Or you may have inserted an extra colon where one is not required.".
    The only thing the vi is supposed to do, is to enable the offset compensation, which it is doing (I tested that with a separate program).
    Although t
    here is no help file with the NI drivers for the instrument and I'm new to Labview, I would like to know if someone found a workaround for this. It is kind of annoying because the error message is accompanied with a beep of the instrument every 3s.
    Thanks.

    Thanks for your fast response.
    I'm using the latest version of the drivers (I installed everything in the begining of Mai).
    I wrote a small vi for NI Spy, just a simple 4 wire resistor measurement with "Conf Resistance.vi" at the beginning.
    Unfortunately it is my first time working with LabVIEW and the VISA language, and the syntax looks correct for me. ( But I still get the -113 error.)
    Here the processed commands (1 loop):
    1. viGetAttribute (0x0015B920,0x3FFF018F,VI_FALSE)
    Process ID: 0x0000033C Thread ID: 0x0000041C
    Start Time: 14:52:09.127 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    2. viGetAttribute (0x0015B920,0x3FFF018F,VI_FALSE)
    Process ID: 0x0000033C Thread ID: 0x0000041C
    Start Time: 14:52:09.127 Call Duration: 00:00:00.010
    Status: 0 (VI_SUCCESS)
    3. viGetAttribute (0x0015B920,0x3FFF018F,VI_FALSE)
    Process ID: 0x0000033C Thread ID: 0x0000041C
    Start Time: 14:52:09.157 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    4. viGetAttribute (0x0015B920,0x3FFF018F,VI_FALSE)
    Process ID: 0x0000033C Thread ID: 0x0000041C
    Start Time: 14:52:09.157 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    5. viOpen (0x0015B920,"COM1",0 (0x0),0 (0x0),0x0017CC30)
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.469 Call Duration: 00:00:00.010
    Status: 0 (VI_SUCCESS)
    6. viGetAttribute (0x0017CC30,0x3FFF0171,4 (0x4))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.479 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    7. viGetAttribute (0x0017CC30,0x3FFF0171,4 (0x4))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.479 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    8. viSetAttribute (0x0017CC30,0x3FFF001A,10000 (0x2710))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.479 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    9. viSetAttribute (0x0017CC30,0x3FFF0021,57600 (0xE100))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.479 Call Duration: 00:00:00.010
    Status: 0 (VI_SUCCESS)
    10. viSetAttribute (0x0017CC30,0x3FFF0025,1 (0x1))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.489 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    11. viWrite (0x0017CC30,"*RST.",5 (0x5),5 (0x5))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.489 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    12. viWrite (0x0017CC30,"SYSTRES.",10 (0xA),10 (0xA))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.489 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    13. viWrite (0x0017CC30,"*IDN?.",6 (0x6),6 (0x6))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.489 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    14. viRead (0x0017CC30,"HEWLETT-PACKARD,34970...",50 (0x32),32 (0x20))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.489 Call Duration: 00:00:00.370
    Status: 0 (VI_SUCCESS)
    15. viWrite (0x0017CC30,"*RST.",5 (0x5),5 (0x5))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.859 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    16. viWrite (0x0017CC30,"SYSTRES.",10 (0xA),10 (0xA))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:17.859 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    17. viWrite (0x0017CC30,"FUNC "RES", (@);EN...",122 (0x7A),122 (0x7A))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:18.781 Call Duration: 00:00:00.020
    Status: 0 (VI_SUCCESS)
    18. viWrite (0x0017CC30,"MEAS:FRES? AUTO, (@101).",24 (0x18),24 (0x18))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:19.742 Call Duration: 00:00:00.010
    Status: 0 (VI_SUCCESS)
    19. viSetAttribute (0x0017CC30,0x3FFF001A,320000 (0x4E200))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:19.752 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    20. viRead (0x0017CC30,"+1.08185990E+02..",500 (0x1F4),17 (0x11))
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:19.752 Call Duration: 00:00:00.130
    Status: 0 (VI_SUCCESS)
    21. viClose (0x0017CC30)
    Process ID: 0x0000033C Thread ID: 0x0000042C
    Start Time: 14:52:21.214 Call Duration: 00:00:00.000
    Status: 0 (VI_SUCCESS)
    Thanks,
    Dirk

  • Pxi 2575 high resistance

    I am having problems with the resistance across relays on a PXI-2575 increasing over time (faster than expected).  I am using a PXI-2575 in combination with a PXI-4070 for manufacturing test.  In some cases I am looking for an expected short circuit.  The data sheet states that with no voltage applied (which I have none) I should see < 1 ohm for up to 2.5 million cycles.  However, I am seeing upwards of 16 ohms across a particular relay after ~2500 cycles in many cases.  I have a total 6 of these setups, and I am finding myself replacing PXI-2575 cards after less than 1 year of service due to these high resistances.
    To prove to myself that it is the switch matrix (after measuring the UUT with a Fluke DMM) I used the following setup:
    PXI-4070 DMM
    PXI-2575 Switch Matrix
    LFH200 Cable
    24 awg wire
    The PXI-4070 is configured for a 2-wire resistance measurement.  The PXI-2575 is configured as a 95x1 2-wire mux.  The DMM + terminal is connected to pin 46 of Backshell 0 (CH22+) and the - terminal is connected to pin 47 of Backshell 0 (CH22-).  A small 24 awg jumper wire is used between pins 23 and 34 of Backshell 3 (COM+ and COM-).  On a brand new switch matrix I see ~0.16 ohms using this test.  On the most recent one I pulled out of production use, I saw ~16 ohms initially, with it falling to ~5 ohms after leaving it connected for about 5 minutes.
    I am up to 4 PXI-2575 cards that suffer from this issue.  According to the data sheet I should not be seeing this.  Any help would be appreciated.
    Thanks
    Jonathan Rice

    Steven
    Thanks for the reply.  I have done some more testing as you have asked.  I realized I actually have 11 PXI-2575's, recently purchased 2 spares, and 3 more for new test equipment.  They are all used in an identical manner.
    We have made a total of 3 purchases.  The first was for 6 PXI-2575's, the next was for 2 (spares), and the final was 3.  With all of the swapping around, I am not sure where these failing ones came from at the moment, other than to say they were not part of the most recent purchase of 3.  I am more than happy to provide serial numbers, if you can tell me which of the stickers on the board is the serial number.  There are two identical looking stickers, one on each of the boards, that have different serial numbers on them.
    Below is the data I have collected.  Cards 5 & 6 can be considered "good" cards.  Note that their readings did not change from their initial readings.  They are from the most recent batch.  We have no examples of cards with lots of cycles on them that do not exhibit this behavior.  Prior to attempt 1 the cards had been powered off and removed from chassis anywhere from days to months.  Between attempts 1 and 2 several switch cycles were performed and power was cycled on the PXI and the PC.
    *All readings are in Ohms.
    Below is a diagram of the setup I am using to test the switch matrices after they fail in the field.
    Installing a new PXI-2575 immediately resolves the issue in the test set, and that test set continues to work for another several months.
    Any help would be appreciated.
    Thanks
    Jonathan Rice

  • Quarter bridge for 9237

    How do I select quarter bridge completion settings for 9237 with 9944?
    Message Edited by Frederico Barros on 09-28-2007 09:02 AM

    The 9237 is capable of full and half bridge measurements without addition equipment. In order to take quarter bridge measurements with the 9237 you need a quarterbridge completion resistor component (like the ni 9944). This turns your quarterbridge configuration into half bridge, which the 9237 can do. You will need one of these completion components for each of your strain gauges.
    [will work for kudos]

  • Is sony correcting the issues with the PS4 controllers. The material for the analog sticks need to be changed.

    I would like to get a ps4 but both my friends ps4 controllers analog sticks are tearing. I have used both the ps4 controller and xbox1 controller, I like both but prefer the lighter feel of the xbox1 analog sticks they are more comfortable and durable. I dont want to buy a xbox1 but if sony does not correct this issue it will sway my decision. I really like the additonal power the ps4 offers but the controller is a major concern. When microsoft came out with the 360 it had reliability issues, microsoft instead of fixing the problem had consumers send there 360's in for repair. They would not admit they made a mistake with the design of the system and the so called repair was temporary for may consumers as it would just overheat again and you would experience the same red ring of death. My 360 broke 3 times which made me lose all faith in microsoft as a company. The decieved consumers instead of correcting the issue. I hope Sony learns from their mistakes. Dont send consumers the same flawed controllers, admit there was a production mistake and fix it!!! If you guys change the material and correct the issue please email me, if it is corrected I will be a playstation owner if not I guess I will have to go with microsoft. I would also love to see analog sticks with less resistance, closer to the xbox1 sticks.
    Thanks for listening hope you take these comments into consideration.

    Please share your suggestion on  Sony PlayStation Community here. I'm sure they'd appreciate it. Thank you! 
    If my post answers your question, please mark it as "Accept as Solution".

  • SCXI-1520 Zero Offset Changes with Variable Loads

    We are using the SCXI-1520 to calibrate sensors based on strain gauge bridges.  The problem I'm having is that the offset changes when changing the bridge resistance.  For example, the output reads 0.0000 mV/V for 350 ohm bridges.  It reads 0.0112 mV/V for 700 ohm bridges.  It reads 0.0135 mV/V for 1000 ohm bridges.  The signal input is a constant zero for all three of these examples.  The span (gain) is very consistent.  In other words, changing the bridge resistance does not affect the gain.   I know the excitation sense lines are working and they are applied very near the bridge.  Enabling or disabling the autozero mode makes no difference.  What can be done to eliminate the variable offset when changing the bridge resistance?

    Dear Dj143,
    Are you calibrating your strain gauge lines in the Measurement and Automation Explorer (MAX) or in your LabVIEW program?
    In MAX you can create a task and use the calibrate tab in the task to calibrate your line. You would then call the task in LabVIEW. If you are using this method, make sure that you are specifying the correct Gage Resistance (gauges in an unstrained position). The default is 350 so it would make sense that you are getting 0 V with this resistance.
    In LabVIEW you can use DAQmx Perform Bridge Offset Nulling Calibration.vi to calibrate your lines. There is an example in the Example Finder that shows how to use this VI. (LabVIEW Help menu>>Find Examples. Search calibration. Cont Acq Strain Samples (with Calibration).vi). In this case make sure that you are specifying the correct Nominal Gage Resistance (gauges in an unstrained position). Once again the default is 350.
    If you still get incorrect voltages when specifying the correct resistance, let me know how you are calibrating your lines and I will see what I can think of. Have a great day!
    Sincerely,
    Marni S.

  • Can SCC-RTD01 be used with Cernox RTD's, silicon diode temperature sensors?

    Hi,
       Can the SCC-RTD01 be used with negative temperature
    coefficient RTD's such as the Cernox RTD's.  Can it be used with
    silicon diode temperature sensors?
       I was planning on using the SCC-RTD01 with platinum
    resistance wires, but want a screw mount type sensor.  Couldn't
    find any platinum RTD devices with screw mounts, but could find the
    Cernox and diode temperature sensors with the screw mounts.
    Thanks,
    Mark

    Mark,
    Thank you for contacting National Instruments!  When you configure an RTD channel in the Measurement and Automation Explorer (MAX), you have the option of choosing from a list of "standard" RTD's or entering your own polynomial expression as the temperature coefficients.  Therefore, negative coefficients shouldn't pose a problem.  Also, I don't see any reason why a silicon diode temperature sensor would pose a problem either. 
    I hope this information is helpful to you!
    Jeff P.
    National Instruments Applications Engineer
    Jeffrey P.
    LabVIEW Product Management
    National Instruments

  • 1G Ohm multimeter reading with only 1k ohm resistence

    I am a student just starting to use Mulitisim student edition 12.0 for very basic circuits.  My PC opetating system is windows XP.
    First assignment went perfectly with a variety of series circuits using basic components - DC voltage source, resistors, ground, multimeter.
    Started on my second set of assignments with parallel circuits yesterday.  Same very basic components.
    Two problems -  first was a "no nodes" in circuit error when trying to run the simulation.  Surprising because as far as I know my steps to construction the circuit were the same as the previous assignment (just resistors in parallel rather than series).  This error went away after I relocated the voltage source.
    Next problem, which continues,  - simulation results on multimeter show correct voltage 12V but 1G ohm and Amperage  " r"  out of the range.  I have checked the instrument setting and they seem ok.  No open point in the circuit detected or that I can see.
    The only other piece of information I can think of that might help troubleshooting this is that my PC does show 100% CPU (2G, 2.1GHz) use quite often when running multisim.
    Solved!
    Go to Solution.

    Thanks for replying, Tom. You get credit for solving this one.
    When I went back to my circuit and looked at it after a couple days I spotted the problems.
    First, was a branch with no resistance that I believe caused the "no nodes".  I put it back in green wire on
    the attached circuit.  Second, was not removing the power supply when checking the resistance.
    Kind of embarrasing errors even for a beginner. 
    Anyway, you prompted me to take go back to the file and discover the problem which I appreciate.
    In the future I will set the problem aside for a while if I have that option and then,
    make sure to attach the circuit if I post it looking for help.
    Bill H
    Attachments:
    Experiment 5-2.5v2.ms12 ‏92 KB

  • Measuring resistance in a capacitive circuit

    I am using niDMM_Read to get a resistance measurement for a resistive/capacitive circuit. However I need a prolonged time during which the current is passed into the circuit before the resistance is measured. This is to account for the capacitor's charging-time. In other words is there any option where the "niDMM_Read" function can execute for a prolonged time (say 10 secs) before returning with the resistance value? I had another question about the NIDMM soft front panel. Does it use the same drivers as does the Measurement Studio - v3.0.1 - for Visual Basic? How does the soft-panel inject the current? Does it fire several current injections(and take measurements) in a second? If it does, then what is the time duration (milli
    seconds) for which the current is injected?

    This is really a hardware question. This forum focuses on Measurement Studio for VB questions. You will have much better results posting this question to the Digital Multimeters and Dataloggers section of Developer's Exchange at: http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=8&RFORMNUMBER=2&RHIDETAG=TRUE&UCATEGORY_0=_35&UCATEGORY_S=0.
    Best Regards,
    Chris Matthews
    National Instruments

Maybe you are looking for

  • Embed view in view container dynamically

    Hello Experts,   I have links in my web dynpro ABAP view, when user clicks on a link I need to show another view in view container.  For example I have two links in my view and when user clicks on link1 I need to show VIEW1 to the user in the view co

  • Error in Starting Dispatcher

    When i start my Dispatcher i am getting the following error and it is in Yellow colour. Pls help me in this trc file: "dev_disp", trc level: 1, release: "700" sysno      01 sid        BW7 systemid   560 (PC with Windows NT) relno      7000 patchlevel

  • Same internal and external domain names - AGAIN!

    Hi all- Like many of you, I am confronting the problem of having the same FQDN for both my Active Directory domain and Internet domain.  For the sake of discussion, let's call the domain rlh.com. I need to access an externally-hosted website on the r

  • Satellite A100 (PSAA9): How to get Vista HotStart buttons to work?

    Bios: Latest v5.10 Problems: 1. Internet Explorer button launches IE correctly when logged in, but if pressed when machine is off, the machine is powered on and Vista boots normally, but IE is not launched as expected after boot is complete. 2. Windo

  • Adobe Captivate 4 files in Adobe Captivate 3?

    Hi this might seem like a simple question, Is it possible to open Adobe Captivate 4 files in Adobe Captivate 3? Thanks guys!