Test Gear

[Joe]

Not me, Guv, honest. Check the Mod Logs.

- Joe

[Tedzed1]

not in the mod logs, but in the admin logs, my presumptions were 100% correct.

[Alistair D]

There is something special about solidly made test equipment that does not have dozens of menus or querty keyboards.

Whoever changed your signature is just jealous of your musical abilities.

Al

[Tedzed1]

I agree Al, I like equipment that just does what it says on the label, nothing more, nothing less.

Regards from Keith Moon.

[Andrewausfa]

Paul,

Amongst other things I imagine, it's used for testing explosive bolts. See here
http://www.richardsradios.co.uk/safety.html

Andrew

[kevin.Hoyland]

Paul
This Megger i have is just an Ohmmeter.
   
Regards Kev.

[AlanBeckett]

I've got one in the attic that's meant for Earth resitance measurements.
I must get it out.
Alan

[pwdrive]

Paul,

Amongst other things I imagine, it's used for testing explosive bolts. See here
http://www.richardsradios.co.uk/safety.html

Andrew

We had similar instruments when I was mining, they used to limit the current to a safe level when we were checking an explosive round that had been fired by the exploder but the round failed to go off, as a supplementry note of interest (maybe)
the first time I was sent in to do it I was a bag of nerves! We had just finnished drilling about thirty two 8ft holes plus the cut in a granite tunnel round, each hole apart from the center cut hole was primed with a stick of dynamite and a detonator then all the holes were rammed tight with dynamite, all the detonators are twist wired in series with the pair of wires from the exploder connected to the two ends of the series circuit.
Any way I must have done this a hundred times or more, however this time when we wound the exploder up and pressed the fire button 'nowt happened, muggins here was sent in to rectify the problem, it's a strange and erie feeling as when you walk up to the face all is quite exept for the dripping of water etc and you are all on your own standing in front of what amounts to a fully primed box of dynamite, the procedure was to break the circuit roughly in the middle and check either half for O/C connection and so on 'till you found the duff detonator then stuff a replacement detonator in the face end of the dynamite, then go back and fire the expoder, it always fired second time round...two duff detonators in a row would be a bad omen I think.
The safety proceedure for a missfire using electric detonators was to wait for 5 mins. after the first attempt at firing before going in to sought it out.
If using cut saftey fuses, (the ones that are lit like in the cowboy films) the proceedure was to wait 20 Mins before going in to sort it out, I have to say they were the worst.

Lawrence.

[Andrewausfa]

Just out of interest, I've seen several Megger 'Bridge Ohmeters' on our usual hunting grounds, could someone kindly explain what they are for?

From the photos, these seem much larger pieces of equipment, the military ones are usually yellow and come in a lidded box much the same as the AVO military test gear does. The bridge ohmeters have the wind up bit but also four decade knobs which I assume are the 'bridge' bit of the equipment.

Thanks - Andrew

[Restorer79]

Hi Paul (Tedzed1) I picked 1 of those up as well, lovely bit of kit. Low reading ohmmeter for testing amongst other things Earth continuity. Also picked up a 500v wind up Megger for the same price & in full working order.
Modern test equipment is ok, but there's nothing like the real thing.

Andy