tomjerry1 Posted March 7, 2017 Share Posted March 7, 2017 I purchased a set of illuminated shields for my chrono and am trying to use them at an indoor range. The lighting is fluorescent, I am getting errors for front or rear sensor, and the velocities are low or hi??? All power for the chrono and shields are good, and I have noticed that if I shoot just above the sensors, the readings are more inline with what I would expect. Has anyone else had experience with indoor chrono? and any suggestions on obtaining more consistent readings? Link to comment Share on other sites More sharing options...
Foxj66 Posted March 7, 2017 Share Posted March 7, 2017 Do you turn the lights off? I think you need to? Link to comment Share on other sites More sharing options...
tomjerry1 Posted March 8, 2017 Author Share Posted March 8, 2017 no I haven't, will give it a try, if possible Link to comment Share on other sites More sharing options...
RePete Posted March 9, 2017 Share Posted March 9, 2017 The lights are flickering at the same frequency as the clock in the chrono. Link to comment Share on other sites More sharing options...
tomjerry1 Posted March 10, 2017 Author Share Posted March 10, 2017 I should have known Link to comment Share on other sites More sharing options...
MemphisMechanic Posted March 10, 2017 Share Posted March 10, 2017 (edited) What is this indoor lighting setup? If you get a really bright incandescent lamp right next to the body of the chrono aimed up at the bows over the sensors from underneath, it'll work perfectly. It has to be close and bright so that the 60 times a second the flourescent lights go dark is not a factor. And down next the body of the chrono so that the sensors can't see the bulb directly. We use one of these at the indoor range and the chrono functions flawlessly in a room full of fluorescents. https://www.google.com/shopping/product/6925743818905997102?lsf=seller:8049,store:7044089332842547346&prds=oid:15142081725944425160&q=halogen+flood+stand&hl=en-us&ei=FzTCWN71Foe3mwGEobKgDw&lsft=gclid:CNHsqP6Uy9ICFdY6gQodLv0DuA#sgro=om Edited March 10, 2017 by MemphisMechanic Link to comment Share on other sites More sharing options...
tomjerry1 Posted March 11, 2017 Author Share Posted March 11, 2017 the range I'm using has about 10' ceilings with fluorescent lighting running in rows the length of the room. I have used this chrono outdoors with no issues, but inside the range w/lighted screens, I'm getting variations in speed from 250 to 1100fps. I am also getting errors for the front or rear sensor not seeing the round. I am considering building a cardboard cover for the chrono and try to use it like a chrono trap for qualification at a match. I have yet been to the range to try turning off the fluorescent lights, will try this first, one less thing to pack around. Link to comment Share on other sites More sharing options...
Feegee Dean Matlock Posted March 11, 2017 Share Posted March 11, 2017 What brand of crono? Link to comment Share on other sites More sharing options...
tomjerry1 Posted March 11, 2017 Author Share Posted March 11, 2017 Shooting Chrony Link to comment Share on other sites More sharing options...
DutchGunner Posted March 14, 2017 Share Posted March 14, 2017 I use a chrony indoor and I just taped some led bars to the screens. Turned off the lights directy above the chrony and no issue with reading, front an rear sensor are fine. Costs nearly €10,- cheap fix. Link to comment Share on other sites More sharing options...
rancher5 Posted March 15, 2017 Share Posted March 15, 2017 Labrader works well indoors Sent from my SM-T350 using Tapatalk Link to comment Share on other sites More sharing options...
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