Got a fascinating DRO, need help finding a scale.

[shild]

Got myself a fascinating looking DRO from "Valeron Digital Techniques". It doesn't have the 9 pin serial connector or the 6 pin canon connector but an 8 pin round connector of some sort. What kind of scale does this use? It has a selector switch for Normal, TIR, MAX, MIN. What does TIR mean? It also has a 9 pin connector labeled "Reject Relay". What is that for? https://www.ebay.com/itm/Valeron-Digita ... 2749.l2649

[John Hasler]

That isn't a DRO.

[shild]

That isn't a DRO.

Not a 1 axis dro? What is it then?

[John Hasler]

It appears to be part of some sort of go/no-go gauging system.

[shild]

It appears to be part of some sort of go/no-go gauging system.

Don't some dro's have that feature too? Modern dro's have a lot of features. But you're right about the go/no-go part. If I go too far above the preset limit the "HI" light will light up while making a relay click noise, too far below and the "Lo" light lights up as it clicks. I had the cover off today, they are 2 separate relays you can actually see work. I found another example of one of these with 2 readouts here. https://www.ebay.com/itm/Valeron-Digita ... xy8F1RGMeV

[pete]

I'm not saying for sure it's a gage head amplifier but it could have been. There used with high accuracy gage heads to make extremely accurate measurements, part flatness, surface quality etc. It looks to me like that unit was used as a high accuracy dimensional parts checker that's why you see the preset limits for the high / low measurements just like John said. If it's processing unit isn't compatable with any of the signal types the common dro scales use it ain't gonna work as a single axis dro. If it's what I think it is? Then I wish you luck. TIR is normally total indicated reading, depends on what that was used for and in what industry. It could have another meaning I know nothing about. With the combination of digital plus analog on the same unit my guess is it's pretty old. Late 1970's early 1980's maybe?

[Magicniner]

Valeron Digital Techniques Dual Probe Preset Limit Controller.
Industrial automated Go/No-Go probing with reject relay facility.
Posibly used on some kind of production line in conjunction with a PLC, no need for a reject relay output on anything used in manual or bench inspection.

[shild]

Valeron Digital Techniques Dual Probe Preset Limit Controller.
Industrial automated Go/No-Go probing with reject relay facility.
Posibly used on some kind of production line in conjunction with a PLC, no need for a reject relay output on anything used in manual or bench inspection.

Thanks! Have you used one? Do you know what kind of scale to get for it?

[Magicniner]

It doesn't use a scale, it uses a pair of probes.
Seriously, it's not a DRO and isn't suitable for use as one, it functions as a comparator, if it didn't come with probes you are very likely the owner on a nice bit of Wall Art

[shild]

It doesn't use a scale, it uses a pair of probes.
Seriously, it's not a DRO and isn't suitable for use as one, it functions as a comparator, if it didn't come with probes you are very likely the owner on a nice bit of Wall Art

You're really sure about this? Hmmmmmm, yeah it does look like good wall art, very good looking for equipment like that isn't it? I don't have probes but I did find a place I could buy the 8 pin plug that plugs into it if I can't find probes already with one. But what do you measure with them? Also found 2 dipswitches inside when I took off the cover, never flipped them, don't know what they do. What do you think they do?

[Magicniner]

You're really sure about this?

Yes.

I don't have probes but I did find a place I could buy the 8 pin plug that plugs into it if I can't find probes already with one.

Have you contacted the current owners of the company name? They may have some archive information.

Any competent electronics specialist should be able to examine the circuitry and meter the inputs and take a punt at the requirements then do some testing and work out what would function, but this would likely run you something approaching or exceeding the cost of a good working DRO, and you would still be without a working DRO.

Hang it on the wall with a cable and switch and use it as a talking point, when people ask you what it is turn it on, twiddle with it some and tell them it's a "Talking Point"

[John Hasler]

The probes may very well be something such as LVDTs or strain gauges.If I owned the thing I might be able to turn it into a DRO display (if I had any scales) with some soldering and reprogramming but most likely I'd scrap it for parts.