What type of signal?

[1idejim]

right on, thanks.

this is very important to me as it's being put on for irrigators by irrigators, we are trying to educate at the grass roots level

[1idejim]

a friend of mine is just getting started doing some private locates and leak detection in wa.

his boss bought some equipment used, metrotech 9890-xlt without the Aframe and a LD-12 leak detector.

i received an e-mail yesterday saying that he was trying to locate a galv. service connection with a both a tempo 521 and the metrotech.

he was only able to get response for about thirty feet from either end and had cleaned the pipe and installed a pipe clamp to connect with.

i explained signal path return and suggested that he place his ground far away from the connection as possible by using a jump wire and sent him a copy of 3-Ms locating manual for referance.

any of you that run the metrotech have any suggestions for locating pipes for this machine, i run the dynatel 573DL and don't have any real problems with finding pipes.

thanks

jim

[ProfessionalLocator]

a friend of mine is just getting started doing some private locates and leak detection in wa.

his boss bought some equipment used, metrotech 9890-xlt without the Aframe and a LD-12 leak detector.

i received an e-mail yesterday saying that he was trying to locate a galv. service connection with a both a tempo 521 and the metrotech.

he was only able to get response for about thirty feet from either end and had cleaned the pipe and installed a pipe clamp to connect with.

i explained signal path return and suggested that he place his ground far away from the connection as possible by using a jump wire and sent him a copy of 3-Ms locating manual for referance.

any of you that run the metrotech have any suggestions for locating pipes for this machine, i run the dynatel 573DL and don't have any real problems with finding pipes.

thanks

jim

Placing that ground far away is good advice.

That pipe may have an anti-corrosion coating or insulation on it. Try grounding the far end.

The Metrotech 810 induces very well on pipes. Go out to where the signal stops, around that 30 foot mark and try inducing from there.

Galvanized pipe will rust from the inside out. The heavy rust usually expands and clogs the pipe often reducing the passage at that point, called an inclusion, down to the size of a pencil lead. If it fully rusted through anywhere, like where the leak is, you will not get continuity beyond that point so no signal past that point.

[ProfessionalLocator]

Okay, that was the 9890 Metrotech, still try induction.

I can understand why witching rods are frowned upon. I have used them to find a utility and then get an induced signal back to a positive source like a transformer, meter, ped, etc. .