JRys

see attached zip file...
Best regards,
John
WebDAQ_CAD.zip

This inquiry is being handled by a private message.

Hey Jonathan,
The USB-3105 output impedance is less than an ohm. Impedance is not the issue. Is the connection to the customer's A/D single-ended or differential? Is there or was there isolation. I ask because a ground loop, if not too severe, will make a signal noisy.
best regards,
John

Assuming the device that DAQami talks to is in working order, it could be corrupt daqami.mcfg file. In your documents folder, there should be a Measurement Computing folder and in it a DAQami folder and a daqami.mcfg file. Rename or delete daqami.mcfg and the next time you run it, DAQami will create a new one. 
Best regards,
John

https://www.mccdaq.com/pdfs/drawings/USB-TEMP.pdf
Uses the mid size blue case - see attachment for step file
ASSYBASEUSB.PDF ASSYBASEUSB.STEP

Hello,
It is possible to connect two load cells and a handful of thermocouples to the USB-2416-4AO. To avoid creating a ground loop, use one power supply to power the load cells and use ungrounded thermocouples. The load cells need 10 volts excitation (user supplied), which will result in a maximum signal voltage of 20mV. To determine this, multiply the load cell sensitivity (2mV/V) by the excitation voltage. The actual sensitivity will provided with the load cell on the calibration certificate.
Best regards,
John 

uses the same 2.1 mm barrel diameter found on the Zybo. This one should work: https://digilent.com/shop/5v-2-5a-switching-power-supply/ 
 

Hello,
The MCC 118 absolute accuracy is 20.8 mV at full scale. This equates to a 0.2% accuracy. Therefore, the minimum detectable value is 0.4 Bar x 0.002 or 0.008 Bar.
As for maximum detectable frequency, are you performing an FFT to get the frequency spectrum?
Best regards,
John

Try changing #define PACKET 31 to #define PACKET 64.
Thanks

Hello,
Disabling support for the other FPGA series is a start. You could also delete the following folder \Xilinx\Vivado\2021.1\data\parts\xilinx\devint\vault\versal\ . It contains data files for a large Xilinx board that is not carried by Digilent. 
best regards,
John

Hello,
It appears you have two devices, one is displayed on a graph and the other is displayed and written to a file. The data acquire loop reads 1000 scans ( 8 * 1000) each time around. Assuming the displayed data is correct, the problem lies within the National Instruments Write To Measurement File Express VI or with the Excel TDMS import tool, both of which are National Instruments products. For help, it is best if you reach out to them for assistance. One thing you could try is writing to CSV instead of TDMS.
best regards,
John

Hello,
Take a look at the extra power connectors inside you computer. Most likely they are SATA not molex. If I were to guess, you need a cable like the following sold on Amazon:
https://www.amazon.com/LIQUN-Adapter-15-pin-Female-0-66Ft/dp/B01IJGL8PW/ref=sr_1_5?crid=3EATKYAYBMF8K&keywords=molex+power+hard+drive+connector&qid=1667923324&sprefix=molex+power+hard+drive+connector%2Caps%2C86&sr=8-5
or if you do have molex
https://www.amazon.com/12in-Molex-Power-Extension-Cable/dp/B00H91B980/ref=sr_1_10?crid=1EZPN948CBO8R&keywords=molex+power+hard+drive+connector&qid=1667923829&sprefix=molex+power+hard+drive+connector%2Caps%2C172&sr=8-10
best regards,
John
 

use the following to download InstaCal 6.73
https://www.mccdaq.com/downloads/InstaCal/icalsetup.exe

Hello,
I don't think it's a bad sensor. Typically, 4-20mA current loops need at least 10 volts and more is better. Many use a 24 volts.
A 240 ohm resistor results in a voltage range 0f 0.96 to 4.8 volts leaving little left for the sensor itself. I suspect it will work if you use a 12 volt power supply. Use the differential mode and the input across the resistor. The connection should be as follows: connect (+)12v to (+)input, (-)input to (-)12v. Connect the inputs, (+)input and (-)input, across the resistor. 
Best regards,
John
 
 
 

Alejandro,
We sell the original USB-1208FS and the redesigned USB-1208FS-PLUS. The original model is not supported, but the PLUS model is. If you have the original version, all is not lost. There is another Linux library that is called the Third Party Driver. This driver was created by a Warren Jasper, who is a professor at North Carolina State. I believe there is Python support too.  If you have questions or concerns you can reach out to Warren directly. His contact information is included in the download material.
https://www.mccdaq.com/daq-software/Linux-Support.aspx
Best regards,
John

The ports use LCX245 octal transceiver chips in between the screw terminals and the FPGA. In mixed direction asynchronous control, I believe it flips the direction back and forth depending if the function is DBitOut or DBitIn. The DOutScan functionality doesn't have this capability. Removing the direction test from the DOutScan driver code is not recommended.
best regards,
John

Hello Luzia,
Knowing what devices are supported with Measurement Computing software is confusing at best. For instance, our Linux driver with its Python support can be used with the DT9837A but, on Windows we only have C, C# and VB.NET support. Here's a list of the mcculw device support.
https://www.mccdaq.com/pdfs/manuals/PyWin-hw.pdf
Best regards,
John

Hello,
Data Translation became part of Measurement Computing six years ago and Measurement Computing is part of National Instruments (NI.com). 
OpenLayers is free to use and you are granted permission to use it within your company. This also applies to the QuickDAQ software and the DASYLab an LabVIEW support.
I hope this helps... 
Best regards.
John

Hello,
To date, the USB-5203 is not fully integrated into DAQami to the point you can configure the channels. However, because it knows which device you have, it disregards its channel setup and instead uses InstaCal's. About all you can do is turn channels on/off and change the sample rate.  
Best regards,
John

Hello Jake,
Close DASYLab and uninstall the support you added with dasylabdaqcom2setup.exe.
Next, run the DASYLab Configuration utility and select the Packages tab. There should be a green Data Acquisition link with a plus sign. Open this to view the driver support. Find and enable the IOtech driver support.  When you press OK to close the Configurator, the IOtech installation will run. If necessary, follow the default prompts to finish.
We are almost finished. Find the DASYLab exe in the folder C:\Program Files (x86)\DASYLab 2022\. Right-mouse click dasylab.exe and choose Properties. Select the Compatibility tab, find and select the check box that says something like Run this program as administrator. Close the Properties and Start DASYLab. Now, you should have a menu item under Measurement for Hardware Setup-->Driver.
Do please note, the IOtech support was never updated to for Windows 10 or 11 or DASYLab 2022. There is a bug that would crash DASYLab if you tried to select over sampling. I mention this because over sampling is necessary for thermocouple measurements. If thermocouple measures are your goal, I suggest not using the IOtech device and instead switch to the MCC USB-TC or US-2408.
Best regards,
John

Hello,
Inside the USB-TC is a known millivolt reference. During calibration the channels are first connected to ground to measure offset. Then they are connected to the millivolt reference and with the two values, gain and offset coefficients are calculate and stored. This allows it to measure the thermcouple voltage accuractely. 
During operation, it measures the thermcouple voltage, the CJC sensor and from these to values it determines temperature for the particular thermcouple type.
As for the calibration date, 11/26/15 is the last factory calibration date, which happens to be the manufactured data. I check, and this particular USB-TC has never been sent in for a factory calibration. One thing to keep in mind, the millivolt reference used in the self calibration does eventually drift. The factory calibration reset the reference so that future self calibration are accurate. The current price for a calibration is $62.75 plus shipping. Email your contact info and model/serial number to info@mccdaq.com to receive a quote.
Best regards,
John
 

Hey Sam,
There is no canned solution that we offer. The digital outputs are 3.3 volt compatible and can only source about 1mA. They work well when interfaced to 3.3 volt logic.
You could try using the output as a switch to ground. Connect the SSR (+) control line to (+) Power (external power supply) and the (-) to the USB-1616HS-4 output. Connect (-) Power to the USB-1616HS-4 ground. When the output is set high, the SSR will be off but when it is set low current will flow from (+) Power down through the output to ground, which is (-) Power and this turns on the SSR. Test the output with a load on the SSR output because they need some current to flow to stay on.
Best regards,
John

Hello,
Fixing the .XML error simple, just make sure DASYLab is configured to run as an administrator. This is because the default IOtech XML hardware file is kept in the DASYLab folder which under Program Files (x86) and that requires permission to read/write. After you correct the XML error, if the remaining errors are the Action modules check if you have DASYLab FULL or PrO. You need at least FULL to use Action modules. For this run the DASYLab Configurator utility. There should be listed a serial number which is a 26 character string. If you provide the last six digits, I can use it to investigate to see if it is FULL/PRO version.
Best regards,
John
 

Hello @e_reed
t_in and t_in_scan are polling functions, in fact t_in_scan calls t_in for each in the list.
However, the USB-1616HS series has another function called DaqInScan that can scan both thermocouple and voltage inputs. For an example of how it works, take a look at the C# example DaqInScan03. In this example, you can see how to setup the channel arrays and how to convert the data. There is a DaqInScan Python example but it doesn't include thermocouples so you would need to modify. Once you have it working you could make the whole operation run in the background with the BACKGROUND|CONTINUOUS option.
Best regards,
John

Hello @Ariel
Nothing for the USB-CTR04-OEM but it's the same size as our USB-1808-OEM and I do have a file for it - see attached zip file.
Best regards,
John
1808_OEM_Drawings.zip