Re: 4-wire sensing device

[Mark Rivers via Tech-talk <tech-talk@aps.anl.gov>]

We have used the Measurement Computing USB-TEMP and USB-TEMP-AI. It costs about $600.

https://digilent.com/shop/mcc-usb-temp-and-tc-series-temperature-and-voltage-measurement-usb-daq-devices/?sku=6069-410-021&utm_source=google&utm_medium=cpc&utm_campaign=21013029836&utm_content=&utm_term=&gad_source=1&gad_campaignid=21006115131&gbraid=0AAAAAD9hNKCoEGxZr53gw0-o0v7NHwLoZ

They can measure thermcouples, RTD, semiconductor, and thermistor sensors.  There is EPICS support in 

https://github.com/epics-modules/measComp

Mark

Sent from my iPhone

On Aug 22, 2025, at 9:07 AM, Pearson, Matthew via Tech-talk <tech-talk@aps.anl.gov> wrote:



Hi Michael,

 

We’ve used 4-wire PT100 RTDs with the Lakeshore 224, which has support for 12 channels. It’s easy to interface to and setup.

 

https://www.lakeshore.com/products/categories/overview/temperature-products/cryogenic-temperature-monitors/model-224-temperature-monitor

 

We use it for both cryogenic applications and also room temperature measurements.

 

It has good EPICS support, although I’m not seeing any published support on the EPICS website. I can send you a copy of our local support if you need it.

 

Cheers,

Matt

 

 

From: Tech-talk <tech-talk-bounces@aps.anl.gov> On Behalf Of Sintschuk, Michael via Tech-talk
Sent: Friday, August 22, 2025 5:11 AM
To: tech-talk <tech-talk@aps.anl.gov>
Subject: [EXTERNAL] 4-wire sensing device

 

Dear all, I would like to know what devices you are using for measuring 4-wire RTDs (temperatur), that -of course- have EPICS-support. For a long time, we used the multimeter Keithley K2700, until it broke. The Keithley DAQ6510/7700 seems to

Dear all,

 

I would like to know what devices you are using for measuring 4-wire RTDs (temperatur), that -of course- have EPICS-support.

 

For a long time, we used the multimeter Keithley K2700, until it broke. The Keithley DAQ6510/7700 seems to be the successor of the K2700 that would fit our needs. But I wonder if there are other systems in use…

We don’t actually need high measurement accuracy, but at least 10 channels would be good.

 

Best regards

Michael

 

 

Bundesanstalt für Materialforschung und –prüfung (BAM)

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