Current measurement using the NI 9203

Similar Questions

• Which is better: using the NI 9203 or USB Volt to differential entrance map

  Dear all,

  I have 4 pressure transmitters, temperature transmitters 4 with output 0-10 v or 4-20 my. I have also 2 with output 4-20 flow meters my.

  I have two options:

  Is to get all the signals in my and link them to the C two modules NI 9203 or I can get 8 sensors with 0-10 V and then I can use for example NI 6218 where I can connect these signals using differential configuration. While the last two signals (of the two flowmeters) should be converted using components SSC to sell volts so that I can connect them to the same card.

  Which solution is better in regards to signal noise?

  Someone told me that NI 9203 does not support differential configuration, such as the signal of my does not noise like the Volt signal so it does no differential configuration.

  Also, NI 9203 has 0-20 my input range and the output of the sensors is 4-20 my... Is there a problem?

  Please advise...

  Yours,

  Ehab

  Hi Elijah,

  Do you mean that you have the choice between voltage and current transducers and want to know what is the best?

  Current loop 4-20 mA is intrinsically less sensitive to voltage noise.  4-20 my sources have an output impedance much higher that a shunt resistance, so that the vast majority of the noise is deleted in all of the source.  The following application note of the BAPI and our own Developer Zone article both give a good overview of the subject:

  Understand the current loops 4-20 my

  Current measurements: practical Guide

  Regarding the 0-20 mA or 4-20 mA, you will have no problem here.  4-20 mA is commonly used for sensors one reasons are that a 0 can be used to indicate a bad connection (open).

  When you take a measure of the tension, the best way to reduce noise is to measure differently, with your connections made with threads of the shielded twisted pair (Wikipedia link).  The idea here is that any atmospheric noise would affect both the + and - ends of your signal.  Since you measure differently, the noise cancel out.

  You will be probably very well in both cases.  If you use the 6218, you can provide your own external shunt resistors to measure the current, while using other channels to measure the voltage. See the article How to build a system of loop current with isolated M series.  It seems to not be updated for the 6218, but this Council provides isolation recommended for current measurement.

  The 9203 s have this integrated to the Board of Directors and are designed specifically to the measurement current.

  Other recommended reading would be field of wiring and considerations of noise for analog signals.  When setting up this system, you will need to make sure that everything is grounded correctly (without ground-loops, floating connections, etc.).

  -John

• Read the motor current by using the controller PXI-7350 and MID-7604

  I use the PXI-7350 controller and MID-7604 drive to run a motor drive.  I would like to be able to measure the motor current while moving the engines.  This measurement is possible?  If so, what commands are required to read the motor current?

  Hi Casey,.

  the 7604 can limit the current to a value that is selectable by the user and you can activate the current reduction if the axis is stopped, but there is no way to read the current engine. If you want to measure the motor current, you must do it with an external device, but due to the current chopping and multiphase, motor control stepper motors is not a trivial task. Micro step mode the current phase looks like a rough sinus with lots of harmonics signal, so you will need to do a true measure requiring RMS of expensive measurement equipment.

  Anyway. If you need to know the temperature of the motor you should better measure the temperature directly. The most inexpensive device OR do is the NI USB-TC01, but there are many other options available.

  Kind regards

  Jochen

• my project is to measure the voltage and current by using the view of laboratory.

  Dear Sirs,

  I have a project to measure parameters electric ac current, voltage, power factor etc through aquisitioin of data with labview. Can I do this? If yes then kindly help me with some opinions and ideas. I'll be very grateful to you.

  Muhammad Azam Hanan.

  Student of the University of engineering and Technolgy, Lahore, Pakistan.

  
  

• Calculation of measurement using the division and the instruction box

  Hello Experts
  
  I have a measure that calculates the percent of sales by State - "sale by States" / "Total sales" * 100 and the requirement is when the numerator of the measure is < 11 then it should be set to 0. I tried to write a next case statement case when sales by State < 11 THEN 0 ELSE sales by State / "Total sales" * 100. I get an error of syntax ideas how I can make it work.
  
  Thank you
  RC

  RC,

  It is always useful in the forum when you post your code and the associated error. Of what you provided; It seems that your case statement is missing from the end clause and it should look like this:

  SELECT CASE
            WHEN sales_per_state < 11 THEN 0
            ELSE sales_per_state / "Total Sales" * 100
         END
    FROM your_table
  

  Jeff

• Connect 2 routers using the Wi - Fi connection.

  I have a Netgear router with a wireless antenna connected to the internet via a cable. I want it to spread on my antenna wireless of my Lynksys WRT310N where I have a few computers.

  How could I go about this?

  I read somewhere that I need DD - WRT Firmware. Currently I use the firmware WRT310N parental control features.

  Any help would be appreciated.

  You want a wireless bridge. You cannot configure a wireless router Linksys into a bridge with the Linksys firmware. 3rd party like dd - wrt or tomato firmware should add this feature. Check a dd - wrt or tomato forum for instructions.

• Create/modify users using the RequestService API

  Hello

  I would like to create or modify users of IOM, by using the API RequestService (RequestService (Oracle Fusion Middleware Java QAnywhere for Oracle Identity Manager)), but currently, I do not know how!

  Currently I use the UserManager API to create/modify users:

  UserManager userManager = Platform.getService(UserManager.class);
  HashMap<String, Object> userAttributeValueMap = new HashMap<String,Object>();
  User user = new User("MyNewOIMUser", userAttributeValueMap);
  userManager.create(user);
  

  It works very well, but it is not possible to 'Create the user approval Workflows' using this trigger mechanism.  (use this code snippet in a custom scheduled task)

  I've already found some examples of code, using the RequestService API, but nobody uses this api to create/modify users.  (https://java.net/projects/openptk/sources/svn/show/branches/Oracle/OIM11g/examples/java/OIMClient/src/oim/client/request)

  Ideas/tips/code samples to specify this use case?

  BR,

  Mint

  This API allows you to submit the application:

  Oracle Fusion Middleware Java QAnywhere for Oracle Identity Manager

  doOperation (RequestData requestData, OIMService.Intent intention)

  This will allow you to submit and do force a request, direct provision or use some permissions has the person making the presentation for administrative roles to determine whether it is direct or claim.

  -Kevin

• How can I access apex_admin by using the configured services to oracle rest glassfish

  am new to APEX so please forgive my ignorance.

  I'm trying to access apex_admin to start to create workspaces. but can't seem to get the screen to apex_admin

  try to access using

  ADR / http://hostname:8080 / apex_admin

  We get the message that installation has not yet been configured...

  Hi Celtpinoy,

  It is a popular problem. Him more often cause one or the ORDS.war is not the same as the settings of the current database using the

  > java-jar ords.war of installation

  OR the configuration directory is not indicated on the right directory using

  > java-jar ords.war configdir

  I suggest that check it out you.

  Kind regards

  Benjamin.

• When you use the vi: 'FLUKE 884 X series, readonly Measurement.vi' with a shot of LUCK 8846 it reads an error message "overload".

  The vi: "FLUKE 884 X series, readonly Measurement.vi" can be downloaded from "http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=9431."

  I want to use this driver to a resistance reading 4 son who, in the Act, is a PT100 resistance to measure the temperature.

  When I click on 'run always' - button on the Panel before LabVIEW, the program reads the current resistance.

  However after each reading, there comes the "overload" - error message on the screen of the multimeter 8846 has.

  Sometimes, it can be also seen a small 'mistake' - sign on the screen and, sometimes, 8846 beeps.

  I already disabled the "ID-Query" in the "Initialize.vi".

  What can I do to avoid these error messages?

  Thank you for your help.

  Instead of using the 'FLUKE 884 X series, readonly Measurement.vi' - vi, I use the 'Read (Single Point) .vi' - vi, which is also included in the

  downloadable file. Now, there is no error messages more.

  Best greetings, heinzmann.

• Write to the file of measurement with a loop For using the value of the dynamic data attributes

  I looked and looked, but couldn't find a solution for this.

  I currently have 15 points of different data that I try to write in an Excel file.  I have all combined in a table and lie with the function "write into a file position.  However, the column names are always "Untitled", "Untitled 1" etc.  I then used the function 'Set the Dynamic Data attributes'; but for this I have to do 15 different functions "set data dynamic attributes.  It was suggested to use a loop with the function 'Set the Dynamic Data attributes' inside of her, but I can't find how do.

  I have several arrays consisting of 15 different values for 'Signal Index' 'Name of Signal' and 'Unit', but also a unique 'get Date/Time In Seconds' related to 'Timestamp '.  The problem is that the error I get when I try to connect the output with Scripture at the entrance to measure file:

  The source type is dynamic data table 1 d.  The type of sink is Dynamic Data.

  How can I fix it?  I have attached a picture of my installation; Sorry if this is gross (I'm new on this!).  Thank you!

  It will get rid of the error, but it is not quite correct. What you need to do after that is to click on the output or the tunnel entry and select 'replace with the shift register. In addition, the array of values that you have wired to the Signal Index is wrong. Arrays are 0 based. Just wire the iteration Terminal here. And, finally, take the size of the table and this connection to the N terminal are stupid. Don't wire nothing to this.

• Unable to connect using the current password

  Using the current password which only had 6 characters - have now changed to 8 hope if this helps solve the problem.
  Have you noticed too there was an update of Mozilla on my laptop the day before that this problem then this could be the reason?

  Unable to connect using the current password

  It is far from a complete problem description.
  Please explain in detail

  • what you were doing
  • That's happened

  Using the current password which only had 6 characters

  6 characters is a very weak password. Consider using a password manager to generate longer and more complex passwords and to remember these passwords.

• Is it possible to use the current version of Safari on Windows 10?

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  N ° Safari has been developed and supported for Windows in 2012.  If you don't want to use Edge or IE, I recommend Firefox.

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  See:

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  What is the content of the user.file?

  Such a file is only in the profile folder, if you or another he created.

  You can try to move away from prefs.js and user.js to reset all preferably in case there is a problem with the files.

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  CTRL + W closes a tab at a time. It also closes a window if there is only one tab open in this browser.

• I currently have an iMac 27 ", end of 2012 running OSX 10.8.5 Mountain Lion.  Can I upgrade directly to El Captain OSX 10.11.2 without going through any other upgrade using the free update available on my update page?  T

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