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MG Midget and Sprite Technical - electronic tourque adaptor

Has anyone out there any experience of these devices?
Naturally I have a conventional torque wrench (Norbar), but its all of 40 years old and i feel that this device could confirm or otherwise that it is still reasonably accurate.
bob

R C Skerritt

Bob I had my 3 torque wrenches calibrated and certified by a company in Glasgow for (IIRC) about £25 only a few years ago. I imagine an Internet search would find a company near you but I haven't looked.

I always keep mine in their boxes in the house away from the damp and always unload the springs before I put them away.

The device you posted is interesting but I don't know how well it works.

I've done my own checks in the past using levers and weights; it's not hard, but it's not very exact.

HTH. Cheers.
Greybeard

You might be better to send it away for calibration if someone will deal with it or at least they can record how accurate it is against a standard so you can compensate. I used to work for a company as a software engineer and they make force and torque testing equipment and I think calibrated items and they weren't cheap. Their equipment still needed re-calibration IIRC yearly to deal with drift in the electronics to achieve required accuracy in many cases so how stable that one is might depend on the price. When I worked on spectrometer software one important part of the software was the running of drift and calibration samples to check the compensation values were correct and those instruments were expensive but the electronics still drifted and needed to be checked against standards to produce accurate results. Maybe for a torque wrench that would be over the top but I think by design a bending beam torque wrench if accurately made should be stable over its life whereas the likes of a clicker like a Norbar, I have 2, may suffer wear and change with age but I suppose that depends on the quality of design and manufacture. A calibration occasionally wouldn't hurt and should be informative.
David Billington

this is how I calibrate my torque wrench. Just with myself on a digital weight scale.

Flip Brühl

Nice one, Flip!
Peter Blockley

cool Flip, i'll give it a try
bob
R C Skerritt

I guess you could stand on the end of the wrench, after working out the moment you create and see if it breaks at that setting.
Graeme Williams

This is what I use to calibrate my wrench - most times I just use it to set the wrench without bothering what the wrench says.

Chris at Octarine Services

I have had my britool torque wrench calibration checked twice a year since I bought it about 8 years ago and it has always been within spec and has never needed to be sent away for repair, this is the one I use at home, say I use it about once a month, even the snap on ones I use at work which get a lot of use still stay in spec between checks, I cannot comment on budget ones as I have never used one
Andy Tilney

Ive been fornate... mine is long in the tooth maybe close to 10 years old now and its srill with in spec

It did cost a small fortune but i cant remember the price tag amount only that i got a big gift card and blew it all plus a few extra dead presidents on the side

Prop
Prop and the

My torque wrench is a quality Britax one, now 50 years old.
Graeme Williams

This thread was discussed between 14/03/2017 and 19/03/2017

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