Connecting an active sensor
Who would think a two wire system could be so confusing? I have setup the 2108 system we have to connect to passive sensors so therefore i supply the 24V to power the device. Now i have a flowmeter that is an active sensor, it supplies its own power to
DI-1100 Misaligned Byte Sampling
I'm having a problem correctly segmenting the series of bytes from the DATAQ instrument. The interpreted first pair of bytes may not represent CH1, and the pairs of bytes can be misaligned as well. My setup is, DI-1100 in CDC mode CH1 connected to 4-20mA
Reducing Power consumption of DI-808
Is there a way to reduce the power consumption of the DI-808 in stand alone mode? I am planning a long term low sample rate (5 or 10 minutes) project at a remote location and want to power the DI808 with a battery. Is it possible to disable the network
DI-710 with 4-20mA sensors
Just picked one of these up to make a 16 channel system similar to our 8 channel units using the DI-2018. However, I cant see how you can fit (or do you need?) the shunt resistor between pins? I have no CD drive on the laptop so need to source an external
DI-2108 D1 Remote Storage
I'm new to Dataq products. Trying to setup the stand alone mode for my DI-2108. I use an output from the PLC to turn on/off a relay, and wire the relay output to D1 terminals. Also, I already configured the stand alone as start recording when D1 is low.
DI-2108 CDC Mode - Overcurrent Exploded
I just purchased a DI-2108 and put it into CDC mode for serial communication over USB connected to a Raspberry PI. When the device is idle, and LED flashes yellow, after several hours it will randomly turn off. The LED goes off completely. >>>Replugging
Stand alone mode file creation
I'm using stand alone mode on a 4108. The problem i have is that it is creating multiple files on the thumb drive. And when I say multiple I mean once or twice a minute. I'm ending up with thousands of files per day all with just a few samples in each.
DA-1110 File Full messages
New here so go easy :) We have a DA-1110 unit that has started displaying file fill errors when the file is small but have noticed that it seems to be recording hundreds, if not thousands, of event markers. At the moment we cant see anything obvious.
Mostly curious: why S/R 2000 Hz for 1 channel, 200 Hz for two or more on the DI-2008
I was a bit disappointed to learn that -- although you can get a sampling rate of 2000 Hz for one channel -- as soon as you go to two channels it drops to 200 Hz. Is there a good explanation for why that is? More importantly: if you use one of the software
Cannot find DLL for device.
I have a DI-148U. After I install the latest software on my Windows 7 64-bit machine, the DATAQ Instruments Hardware Manager sees the USB device, but complains when I press the "Start Windaq" button: "Cannot find DLL for device." Is there anything I
DI-4108-U - Only Channel 1 data collected and Wrong date/time
We got a DI-4108-U to collect pH signal from 6 different pH transmitters. We have connected two pH transmitters so far, to channels 1 and 2, with a 250 ohms resistor, 4-20mA output. The 'Button' was pushed to start and stop recording data. USB was removed
DI-2108 Stand-alone Mode RTC accuracy and drift
I'm planning to use a DI-2108 or DI-2108-P in stand-alone mode, set up to "Record on Power Startup" via the WinDaq Dashboard. I'm a long time DI-148U user so I'm familiar with recording in real-time using WinDaq & having the PC's time synchronized to
New user - DI-2008 and DI-2008P
Novice user here. Looking to connect HMP60 sensors to either DI-2008 or DI-2008-P. It seems for the DI-2008-P I will need to supply the 15v source, looks like Dataq power supply 101086 is appropriate. For the DI-2008, I will have the USB connected
EMG Measurement with DI-245
Hi guys, I am trying to measure emg signal with DI-245. I downloaded Windaq free version, and I set 100 hz frequency and gain is 1000. I cannot see any change of signal. I do not know the reason why I cannot measure anything.
How do you determine memory usage for a 710EHS
How do you determine memory usage for a 710EHS per sample rate for x number of channels. I thought I saw a calculator on this site at one time but can't find it now.
DI-2008 USB doesn't show in hardware manager, buzz then chimes?
Hello. My DI-2008 when i plug it into the mac (I am using VMware to run the DATAQ) via USB, i usually get a chime, today i get a buzz, then the chime and the hardware manager doesn't recognize the device. Windows 10 shows it as a bulk device VMware knows about it, is set to allow it when detected I think i had to do something on the mac side (privacy) when i first got it, but i cannot remember the critical step, and see nothing in the privacy settings. It has worked before... thanks for any help.
Monitor DC solenoid actuation with DI-2108
I have an old logic board that I'd like to convert over to PLC, but the timings of the 24 VDC solenoid valves are sporadic and over an 8 hour period. I have never used a DATAQ instrument but I believe that I should just be able to connect the + terminal of the DAQ to the solenoid operation and the - side of the daq to a system ground. Would this just work as described to monitor voltage levels? I am also concerned about reverse current from the solenoid switching that could possibly cause damage
Windows 10 setup executable
Is there a download file for OM-EL-USB-2-LCD plus for windows 10?
presenting RMS with multiple channels
Hi, I am successfully presenting 1 channel with RMS values on my windaq dashboard connected to the DI 1100, but as soon as I am anableing 2 channels it starts presenting growing graphs although there in no change in the input voltage, Can you please advise on what seems to be the problem? KR, Elad
Configuring the DI-1110 Digital Ports as Switches
All of the descriptive information about the DI-1110 says that all seven of the digital ports can be configured as switches, giving advice on maximum voltage and current, but despite considerable searching in Help, the manual and the available documentation, I cannot find out how this is done. I also noodled around in Setup mode and didn't find it. How is this accomplished?
Worked DI-2008 slist example
I figured out my problem in writing up a question. Here is the corrected write-up for posterity. To understand the slist command, decode the example given for a DI-2008 (p. 40): slist 0 2562 slist 1 2564 slist 2 3078 slist 3 9 slist 4 10 slist 5 8 Here is how to calculate slist 2 3078. The slist command has form: slist <zero-offset> <16-bit config word> The <zero-offset> determines the sampling order. The <16-bit config word> defines the function (i.e. input/rate/count) and scale/thermocouple. For
Export data playback to movie format
Greetings, Does the DATAQ playback software allow a real time playback or possibly an export to a movie file that will playback in real time? I'd like to import to a video and superimpose the real world things going causing the behavior on the strip chart recording.
Ethernet Interface
It is not at all clear from the Protocol Documentation as to how to initiate communications over the Ethernet interface on a DI-4208-E. I can issue a "dataq_instruments" on UDP port 1235 and see appropriate response on port 1234. What I am not clear on is whether I can use an ASCI command like "info 1<CR>" over port 51235. It does not seem to work on either port 51235 or 1235. Are the ASCI commands not valid over UDP? I also do not quite understand the structure of the commands. struct Command {
Extract Data from USB thumb drive through ethernet port in DI-4108 model.
Hi. Is there any way to extract the data stored in the USB memory through the ethernet port remotely? Is it possible to create an application for this purpose by using command protocol? I need to install an instrument in a place of difficult access. The idea is to interact via 4G and ethernet network. The equipment will always be in stand alone mode.
DI-1100 generating event with side button
Can you please give details on how to generate event mark pressing the button on device side? When I run WinDaq software and press this button no mark is displayed in oscilloscope or scrolling mode.
DI-1100 in CDC mode?
Is it possible to put device in CDC mode and made it visible as a virtual COM-port? I follow link from Dataq-Instruments-Protocol.pdf document https://www.dataq.com/blog/data-acquisition/usb-daq-products-support-libusb-cdc/, and when 'Active' LED turns yellow I see the device in Device Manager panel as 'virtual COM Port', but it says 'Device Driver Not Found'
Wireless Transmission of Data from Sensor to DAQ System
Is there a way to transmit data from a sensor to a DAQ system wirelessly? Like through Bluetooth? I know there are a lot of DAQ systems with bluetooth capabilities for transmitting data to a laptop, but what about the collection of data from a sensor wirelessly? Noah Hendershot
DI-245 not detected by example program
Hi, I am new to this type of programming. I am working on writing a customized software for a device built using DI-245. I started with downloading the DATAQ Instruments library and loaded DI-245 example project in Visual Studio 2017 on Win10. It compiles and runs without any error. However, it is unable to detect the device connected via USB. Can you help me figure out what am I doing wrong? Just to give an idea, this is a research project and the device detects air flow rate and time; the air flow
how to correctly set DI-1100 srate with Linux
Hi, I'm using DI-1100 along with Linux for my research and I'm facing some issues when I try to read from the device. First of all, I'm following this documentation for protocol communication (https://www.dataq.com/resources/pdfs/misc/Dataq-Instruments-Protocol.pdf), and gently following this code (https://github.com/dataq-instruments/Python/blob/master/binary_comm/DI-1100/DI_1100.py). This code and this document (https://www.dataq.com/resources/pdfs/misc/DI-1100-Protocol.pdf, page 6) mention that
Real time
Hi! I'm an user of DI 718 Datalogger. We would like to analyze in real time the temperature data acquired by DI-178B datalogger (Sample rate 100Hz/channel) without using Windaq program. Filling a database directly... or export to real time to Excel, .csv or similar format. It is possible somehow? We need to process data extremely fast and in automated way. In case our device is not capable but there is one that can with a similar or higher sample rate and allows the processing of data online please
DI-2108 clock time is off?
I have a simple distance transducer set up with the DI-2108 to measure actuator stroke vs time. When recording data the displayed/recorded data shows quicker than actual rate. (ie. physical actuator stroke time = 5 seconds with stopwatch, WinDaq shows time for stroke =3-4 seconds). Any ideas?
DI-245 THERMOCOUPLE ISSUES
We purchased a DI-245 a while back and have finally began using it. We coupled it with Type J thermocouples from thermetrics and installed the Dataq software. An ice slurry to calibrate and we’re ready to go. All 4 sensors read the ambient temps correctly however once placed in a refrigerated test case (running between 29-38°f) the readings are roughly 18°f lower as compared with a several hand held digital thermometers. Can you offer any suggestions?
Analog carbon monoxide sensor
Anyone know of an analog carbon monoxide sensor that works with a Dataq device?
GL840M current readings
I need to be able to read amperages of 4 different circuits. Can you attach more than one GS-DPA-AC to the GL840M to read more than two currents?
Recording Data
Im looking at the DI-1100 to record voltage, but enable to use a laptop for the specific application. Could I use a USB drive to record data and view later?
Rate Input time delay on DI-155
I am trying to use the Rate Input to record varying RPM but it appears to have an averaging time constant delay of approx 0.75 sec before it provides a steady state value after an acceleration or deceleration. Is there any way to improve upon this? I have tried varying the sample rate to no avail.
Power for sensors DI-245
is there some way that I can tap into the 5V power coming into the Datalogger (DI-245) through the miniUSB cable? I have 2 very low power sensors that need a 5V supply and ground, I would like to not add another USB cable just to provide 2W of power to 2 sensors.
Saving Data to External Drive
I'm using the DI-4108 model and need to record data onto an external drive. The problem is that all the data gets split up into multiple files instead of one single file on the drive.
DI-1120 VS DI-2108-P
I have a home built siesmometer. Its wideband. 0.01hz-40hz.. Ultra low frequencies are a really hard engineering issue because of 1/f noise and all sorts of weirdness.. Ive been using a DI-1120 since it came out years back. I just swapped to a 2108-P. The difference has been truly remarkable in the frequency band i am interested in. In fact its been shocking. The difference is not the 14bit vs 16bit. Its the far lower 1/f noise below 10hz down to 0.01hz. Where I once just had noise, signals have
DI-158U "Forgets" Default Setup
Randomly, the DATAQ model DI-158U will "forget" the default setup. Opening a "reference file" does not transfer the settings back to the way they were set up. This is causing us to redo the settings every time. Sometimes, opening WinDaq will open correctly with the user defined settings. Other times, it opens with the out-of-the-box settings. How can we make the default settings stick?
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