I'm looking for the hardware and software specs of running the UltimaSerial control to capture data from the DI-154RS. Our department will have a computer...
you can use di-194 on any Win95 and up PC with a com port, i think it even runs on Win3.1 if you use WinDaq, but not ultimaserial. if your pc doesn't have a...
How can I command the UltimaSerial control to take a single reading, under control of VB? I just want to make a reading, do some math on the answer and go from...
i wanted to use dataq 194 to datalog temperature via a GM IAT (inlet air temperature) sensor but according to dataq the 194 doesn't support a thermistor as my...
Hi Chen, Are you implying that if I overtly specity the AnalogInput (Channel) that the UltimaSerial will respond with a single reading? - - Steve ... From:...
Not sure what language you are using, if you use VB, take a look at the sample "AnalogInput" included with the control. You have to enable a specific channel...
There is much written on this and I'm no expert but from an analog standpoint here is what you need to consider. The 194 has a +-10VDC linear input. A...
MATH ERROR! 20 VDC / 1024 = 20 millivolts per step. SORRY! - - Steve ... From: Mr Motor To: ultimaserial_group@yahoogroups.com Sent: Monday, June 09, 2003 2:28...
If you need to monitor every reading, why not use GetData? or GetDataEx, if you are not comfortable with variant. GetData returns a variant, and you can access...
I thought he wanted to use thermistor instead of thermocouple. With thermister, you can get much better linearity than thermocouplem, but in a smaller range. ...
Chen, You are the Master! I'm so old-school I've not explored thermistors! Thanks again for an excellent tip that certainly can lead to inexpensive solutions! ...
hmm...so to read the 0-5v range the thermistor is going to sending to the dataq i would remove R1 and R3 per http://www.dataq.com/misc/serialextra/di-194r.gif...
http://www.dataq.com/misc/serialextra/di-194power.gif is the schematic for the latest version of DI-194/154 btw, the output of a pressure sensor may be too...
Thank you Chen for steering the ship. This is great info, shows a company willing to share proprietary documents if it will benefit the user. -- Steve ... ...
I use the DI-194 for vehicle testing. The manifold absolute pressure (MAP) sensor I use is a standard GM type that requires a 5VDC reference. I also pull in...
Well, i would assume that to read a 0-5v supply you wouldn't have to remove any resistors since the 194 can read 0-10v supply. But i figured if you removed the...
I have not tried running with the resistors removed but it would seem to have better resolution. My problem is that this is not a dedicated test system and at...
To increase resolution is a major reason to play with the resistor network, and the latest version of Di-194/154 has the jumpers to make the job a littler...
i c, that makes sense. This is for an automotive engine application and i am basically just datalogging some sensors that typically are 0-5v ... would seem to ...
Hi, I have never used the PC for daq, but now need to monitor temperature change over the course of a few days and this appears to be the most promising...
You can connect a thermistor to the joystick input of a sound card and use Basic or Visual Basic to access the value of the resistance of the thermistor and...
Great Tip Dr. Dave! I love this kind of moment when I think the most stupid question ever has just been asked, and then am presented with an outstanding "out...
I hope someone can help me. I am using the older 8-bit DI-194 and I want to be able to send high/low signals out of the parallel port upon a certain voltage...
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