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RO-7 Cables

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Has anyone had any success with keeping RO-7 cables from becoming tangled when pulling them back out of the water?  This is a great instrument but is a contamination nightmare.

Try putting it in a yellow bag and throwing it away! :P Go buy either an AMP 100 or AMP 200 from MGPI. The probes are small, the cables light, and are completely watertight, no need for the large canister. AMP 100 goes up to 1,000R the 200 to 10,000 R for a few hundred  $ more.  They have a digital readout that is very stable. Oh and by the way , Thermo Eberline is discontinuing support for the RO 7. ;D

Already Gone:
Hi Sherry,
Since you, like most of us, don't get to decide what you are going to get stuck using, how's about I try actually answering your question instead of givin' ya a bunch of smartass BS, okay?
Try laying the cable out flat on the floor istead of coiling it before you insert it into the pool.  Then do the same as you take it out.  You will need more room to do this, but you won't be flopping a wet cable around that wants to do its own thing.  You're going to need a helper to walk the meter to you and then back, so that one of you will be lowering/raising the probe while the other keeps the cable straight.  Let me know if it works.
Good luck,

getting an empty drum and coiling the cable into it as the probe is withdrawn from the pool helps keep it from tangling.  this also minimized contaminating the area although it is a good idea to maintain an awareness of the drums dose rate.

My suggestion would be to use one of those orange plastic gizmos normally used by electricians and others for winding up long extension cords. Usually about 1 1/2 ft. long, available at places like DIY for a couple dollars.
Of course, there is still the whole contamination thing, but this makes it easy to wipe down the cable, spool it up as you do so, and leave you with a nice tangle-proof, baggable cable to be stored for future use or further decon.   


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