TA-0301: Datron 1071 7.5 DMM - Quick Test on 510BA and a look inside.

Datron 1071 from late '80 lets have a look on the Fluke Calibrator.
Love the big display and the many digitis :)
#Datron #1071 #5101B #FLUKE

[WilliamLaakkonen]

Hey Tony- thanks for doing this video. I used to work for Datron USA back when these were made. Pretty amazing design for 1979- and still quite versatile today. One thing you missed on modes- if you press AC and DC at once, you should get AC coupled DC mode. Also, the shining point of the company is the True RMS converter on the AC module. The unit can read correct RMS even at crest factors of up to 10.5:1 - that is how we test at the factory. The AC was calibrated at a low frequency (IIRC 1 kHz) and again at a higher frequency of 20 kHz. The only way to truly calibrate these units is with a Datron AC Calibrator. These things really shine in industrial settings and with IEEE-488 - when you connect one to a Datron calibrator, most of the cal is Automatic after input bias. Sorry I'll miss your posts on Facebook- I am only on mewe now thanks to referring to things which are not allowed to speak of on FB Cheers!

[davidv]

Very nice meter, Tony - thank you for showing it to us. Surely you can find a space for it! Regards, David.

[Stephen_Heathcote]

Very nice meter and ref check. Feedbackloop did a video on a new screen for this meter too. Love the simplicity of the Fluke calibrator in use though :)

[MAXA]

What a lovely meter Tony. Incredible accuracy and resolution too. When you look at how small the resolution goes down to it almost difficult to comprehend how small those numbers are. And the reading were so close to the Agilent yet the Datron was near 40 years older. I really liked the long term test and it was fun to see the temperature going up and up. My attic was at 36c today. But hey here in the UK we are not used to this intense. That was a really nice video Tony.

[TheDefpom]

The Datron meters are excellent, not effected by temperature as much as other meters are, sure they are limited functionality, but what they do, they do well.

[rrowan]

I love your Keithley section. You have a very nice work space.

[KeritechElectronics]

A thing of beauty! Wondering about the type and principle of operation of the display device used in it. Multiple plate 7seg neon indicator, nixie style?

[TheDefpom]

First thing is to re-cap this, all of the Philips caps will be bad, I’ve done several Datron repair videos (which you may have seen) and every single unit had bad caps. Also consider replacing the round bridge rectifiers with new ones, they tend to fail too.

[craxd]

Those are an excellent meter still found in some cal labs. Hold onto it.

[vf]

Very nice meter. I have several Datron's and love their panaplex displays.
Just regarding your meter it is populated at least with option 20 (resistance) that is bottom right board closest to display, then there is option 10 (ACV) board in the middle right and option 30 (current !) what is last board top right. It is strange that current measurement can't be enabled because option 30 board is present (btw this is very rare option, most Datron's I have ever seen don't have current board installed). Empty space bottom left is not used, it was used in very early models where GPIB board was bigger (I have very early 1071 from 1980 with such big GPIB board). You can also try to run selftest (there is dedicated button in Mode section of buttons) to see what options will be checked and if you have some errors.

[xufocom]

1071 VAC show constant offset 1017.... on all ranges. RMS converter need check as written in service manual.

[mrpetit]

The Datron should be in your Datron
Werk aan de winkel 😁🤣
Supermooi ding trouwens.

[dannyxz]

Hi Tony, you're running out of bench real estate, gotta knock some walls down pretty soon :)

[MarcelHuguenin]

Hey Tony! Jouw verzameling begint echt fantastische vormen aan te nemen 😀 Wat een prachtige unit weer gescoord zeg. Marktplaats?