chrisa006 Posted January 26, 2009 Share Posted January 26, 2009 I just went to check some ammo and am getting very strange numbers. I am shooting 40 ammo that should be around 925-950fps and it is coming in at 3030- 4020. The muzzle is 8' from first screen. I have the infrared screens. I checked the distance between screen setting. Anyone have any ideas or is the chrono shot? Link to comment Share on other sites More sharing options...
AlamoShooter Posted January 26, 2009 Share Posted January 26, 2009 If you had the old problem of too close to the screens you would get a -Low- # not a high # If it was set to 2.4 yards for what you tell the crono but the screens are 24" the math works out about rite. That would almost be 3x Or you set it too close to your beer Link to comment Share on other sites More sharing options...
wide45 Posted January 27, 2009 Share Posted January 27, 2009 Is the chrono brain too close to the muzzle blast? Link to comment Share on other sites More sharing options...
chrisa006 Posted January 28, 2009 Author Share Posted January 28, 2009 I moved the display across the room and made sure the wires were not crossed and that seems to cure the problem. Link to comment Share on other sites More sharing options...
ben b. Posted February 2, 2009 Share Posted February 2, 2009 (edited) Never mind.... Edited February 2, 2009 by ben b. Link to comment Share on other sites More sharing options...
chrisa006 Posted February 12, 2009 Author Share Posted February 12, 2009 Any help folks? Unit is doing the same thing. Link to comment Share on other sites More sharing options...
norbs007 Posted February 12, 2009 Share Posted February 12, 2009 Did you set the screen distance to 2 feet on the unit like what Alamo is saying? Link to comment Share on other sites More sharing options...
chrisa006 Posted February 12, 2009 Author Share Posted February 12, 2009 Yes, I checked all the info per the directions. My stepdaughter is doing a science project about temp on powerfactor and this is a pain. Link to comment Share on other sites More sharing options...
scheirere Posted July 30, 2009 Share Posted July 30, 2009 I had a similar problem with my M1 a month ago. I was chrono'ing late in the day and the sun was a little behind me. Apparently it was giving the chrono fits, even with the infared screens. A friend had this happend before and suggested putting the chrono in the shade, which cured the problem. Now I understand why they always put the chrono's in a box at big matches! Link to comment Share on other sites More sharing options...
tekno Posted July 30, 2009 Share Posted July 30, 2009 I have had high readings with a long life smoke detector battery, everything OK when I changed to a normal battery... Link to comment Share on other sites More sharing options...
Seth Posted July 30, 2009 Share Posted July 30, 2009 My CED doesn't like the IR screens outdoors. I use it predominantly in a indoor range and have them turn off most of the lights when I use it. That gives me the most accurate results. Its WANKY outdoors with the IRs. Link to comment Share on other sites More sharing options...
Jman Posted July 30, 2009 Share Posted July 30, 2009 Mine is erratic in sunlight. Putting it in a shaded area fixes that. Just remember, no direct sun. Link to comment Share on other sites More sharing options...
chrisa006 Posted July 31, 2009 Author Share Posted July 31, 2009 I sent the unit back to CED and it checked out OK. I am using it indoors and the suggestion that seemed to fix the problem was to put something, I used a target with a hole cut in it, before the first screen. I have had all good readings since I did this. Link to comment Share on other sites More sharing options...
SVIlover Posted July 31, 2009 Share Posted July 31, 2009 When using the ced indoors with the ir kit, make sure there are no fluorescent lights near by. The sometimes naked to the eye flickering causes the ced to act weird. Link to comment Share on other sites More sharing options...
Jeff686 Posted July 31, 2009 Share Posted July 31, 2009 Yes, I checked all the info per the directions. My stepdaughter is doing a science project about temp on powerfactor and this is a pain. Make sure you have a very temp sensitive powder!! 7625 is know to be temp sensitive, but I had to get it up to 150deg before I could see a signal, and then it was only 2pf. Large sample sizes might help, but there is a lot of noise, and the signal to noise ratio is tight between 32 and 100 deg F. Link to comment Share on other sites More sharing options...
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