EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: VintageTekFan on October 10, 2014, 02:11:06 pm
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I just picked up a Data Precision 2590 5.5 Digit Multimeter from a local tech recycler for 10 bucks. :-DMM
Trying to find some information on it, but I Google fails me. Would love a spec sheet, or a manual, or best a service manual.
So far, I only checked it on the 20V range, and it reads reasonably, and shorting the inputs produces 0.00000. The mA range does not appear to work, but there is a blown 2A fuse in the back, and I think its also the current source for the mA reading - so I'm hoping replacing the fuse will work - thats tonight's project.
I may do a tear-down with pictures if its not too bad, and I can find my camera.
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Data Precision's meters were well made and were competitive with most other high end DMM's of their time. I had one of the older 5.5 digit ones years back, it might have been a 3500 model. It had Panaplex displays and auto-ranging accomplished by clicking through a row of about 8 relays. Unfortunately it stopped working, and I would have just as soon found diamonds digging in my back yard before I could find any service data for it. Some of these smaller American T/M companies of the past sold the majority of what they built to the government and their management was hesitant over releasing service data in an open manner. As the production quantities of the equipment itself were relatively small, it makes finding service info even harder.
-Mark-