Excalibur 1000

[billinstuart]

Gringo:

Go to the beach, set the bottom knob to disc, the threshold to where you BARELy hear the hum, the volume up maybe 1/2 way, the sensitivity on auto, and the selectivity at 1. Get used to the sounds. The threshold is basically the base setting for the "carrier" hum from the unit. Encountering metallic objects basically modulates this carrier in frequency and intensity. The volume adjusts the intensity. The selectivity (top) knob adjusts which frequencies the unit will react to. Ferrous objects are blanked out..the carrier will disappear. A low battery will produce a strong hum that you can't control.

It's all about the way the unit hums. Everyone likes a hummer.................

 

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[Gringo]

Thanks, Bill...I have not had the chance to give that a try yet, but I printed out your instructions and will take some coins, nails, etc. to the beach and try it. Are the settings any different if the detector is, say, 10-20 ft. underwater, completely immersed?

 

[billinstuart]

I don't dive so I can't help with underwater. I have taken it in the surf, and found that there is little difference in settings between wet and dry. Movement of the coil is essential for the unit to work..it has to move through the field created by the buried object to modulate the frequency of the carrier.

 

[Sandman]

Gringo, another reason the detector might be unstable is a low battery. Also if you are near a boat and any electronic gear that is turned on should be silenced. But I doubt this is the case. You can also unplug the battery connection and apply silicone grease from a dive shop to the threads and screw it back on and see if that helps.

I had a bubble pop on the bottom of my Excal's coil and saltwater got in the coil to cause the instability. Minelab gave me a new coil and it was out of warranty.

Good Luck,
Sandman

 

[Treasure_Hunter]

My apologies, I forgot about that fix.

I also use the silicone grease on mine, doing as Sandman suggested and applying it on the threads. I had noticed when I first started using the Excal that there was times it seemed unstable, I was very green with it and per Sandman's suggestion I tried the grease and my problem quit. .

 

[Gringo]

thanks for the suggestions. I have good silicone grease, and will try that, too. I bought an extra battery for it.

 

[Hangingfor8]

I was having some wierd stuff going on and I added the silcone lube and it really helped. I also found that a really good charge will make all the difference in the world. I just wish there were a light or something to let you know the thing is charging. I've heard you can fast charge the battery with an R/C car charger. You can buy them at most hobby shops and make an adapter from simple parts at Radio Shack. Has anyone tried this yet?

 

[Treasure_Hunter]

I have never tried them myself. I give mine a charge the night before I go hunting and it last a lot longer then my 5-6 hour hunts as there is still plenty of power left. You can also pick up a back up battery and charge it, 2 batterys should last you more then the time you will need them..

I have 2 Excals with an additional back up battery and the AA battery pod. I picked up the extra battery off of EBay used for about $50 with the shipping. I have a converter in my van that I put the battery on while Im driving to the beach just to top it off.

You can also check the battery with a volt meter to be sure of your charge before you go hunting. I just charge mine the night before I plan on hunting nad it has never been an issue. I have had low battery in the past and I knew it was low as the unit was going nuts.

 

[Hangingfor8]

The extra battery is a good thing. I was just thinking the r/c car charger would be nice if you were on the boat because it attaches to a car or boat battery, but if you have inverter or a gen you could do the same thing. Anyway, it's very important to have the battery at full charge or else it'll just go crazy when it gets low.