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 Post subject: Chrony question
PostPosted: Sun Nov 20, 2016 6:47 am 
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Joined: Sun Jan 09, 2011 8:07 am
Posts: 3320
Location: Central West River Nova Scotia
Has anyone else experienced this ? My chrony occasionally registers shots exactly 200 fps less than correct. It's a beta 1.

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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 5:08 pm 
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Joined: Thu May 07, 2015 8:30 pm
Posts: 1184
Location: Eastern Townships
In my Chrony's manual, they say that low velocity readings maybe due to poor light conditions (not quite enough light?). Some users, myself included, put a light source directly over the diffusers/sensors to get more reliable results, and I've found it improved reliability. I use two small battery-powered LED lamps. Hope it helps!


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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 5:59 pm 
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Location: Central West River Nova Scotia
[quote="airmec"]In my Chrony's manual, they say that low velocity readings maybe due to poor light conditions (not quite enough light?). Some users, myself included, put a light source directly over the diffusers/sensors to get more reliable results, and I've found it improved reliability. I use two small battery-powered LED lamps. Hope it helps![/quote


I also have lights above the sensors. It never happened before in the last three years. Just wondering if it was a common problem.

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If I had only one wish, it would be to be able to "unsay" things.


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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 7:51 pm 
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Joined: Thu May 07, 2015 8:30 pm
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Location: Eastern Townships
The only other thing I could think of is maybe some dirt or debris went on the sensor. I had that problem once when I put my cardboard backstop real close to the Chrony, some confettis flew on the rear sensor. Other than that, I don't know. Guys?


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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 8:39 pm 
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Joined: Mon Aug 08, 2016 7:23 am
Posts: 2779
Location: Somewheres near the Atlantic
Mine does funky things when the sensors are dusty or battery is getting low.


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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 9:17 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6015
Location: P.G. B.C.
leadslinger wrote:
Mine does funky things when the sensors are dusty or battery is getting low.


Rain drops dried or wet - snow flake residue - dust - etc. - they do need periodic cleaning.

Sometimes it's really hard to figure why low readings or "ERROR" readings.

An Oehler 33 or PACT timer do not 'normally' give errors like the inexpensive chronographs like the Chrony and other low cost units.

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Last edited by Daryl on Sun Nov 20, 2016 9:19 pm, edited 1 time in total.

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 Post subject: Re: Chrony question
PostPosted: Sun Nov 20, 2016 9:17 pm 
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Joined: Wed Nov 02, 2016 2:27 pm
Posts: 127
Location: Brampton Ontario
Now I'm wondering if my Chrony is right. I was thinking my guns were not putting out what they were suppose to so now I'll have to add a light and recheck them. Glad I saw this.


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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 4:32 am 
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Joined: Mon Sep 03, 2007 7:56 pm
Posts: 173
Location: Sidney, BC.
For my Chrony I use 110V to 9V adapter from "The Source" to eliminate the 9V battery plus a light source , never have any problems with errors...KEN.


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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 5:20 am 
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Location: Central West River Nova Scotia
KEN. wrote:
For my Chrony I use 110V to 9V adapter from "The Source" to eliminate the 9V battery plus a light source , never have any problems with errors...KEN.

I have never heard of these adaptors. I assume they are available at the source ?

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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 9:57 am 
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Location: Somewheres near the Atlantic
joe hickey wrote:
KEN. wrote:
For my Chrony I use 110V to 9V adapter from "The Source" to eliminate the 9V battery plus a light source , never have any problems with errors...KEN.

I have never heard of these adaptors. I assume they are available at the source ?


Should be able to hook up a external power source to the chrony.


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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 6:09 pm 
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Location: Central West River Nova Scotia
leadslinger wrote:
joe hickey wrote:
KEN. wrote:
For my Chrony I use 110V to 9V adapter from "The Source" to eliminate the 9V battery plus a light source , never have any problems with errors...KEN.

I have never heard of these adaptors. I assume they are available at the source ?


Should be able to hook up a external power source to the chrony.[/quote
How would one go about it ?

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If I had only one wish, it would be to be able to "unsay" things.


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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 6:27 pm 
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Joined: Mon Aug 08, 2016 7:23 am
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Location: Somewheres near the Atlantic
Easiest would be something like this.

Image


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 Post subject: Re: Chrony question
PostPosted: Mon Nov 21, 2016 7:27 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6015
Location: P.G. B.C.
You may be able to get a 110 to 9volt adapter from Pr. Auto. Otherwise, a hobby store might be able to help.

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Daryl


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 Post subject: Re: Chrony question
PostPosted: Tue Nov 22, 2016 12:11 pm 
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Joined: Tue Oct 13, 2009 1:27 am
Posts: 2514
Location: Vancouver
I stopped using 9V batteries a couple of months ago, after annoying myself one time too many by forgetting to turn the thing off after use then finding it dead on next pulling it out of the closet. Dug around in my box of old AC/DC adapters and found one rated for 9V output. Checked polarity, then soldered a 9V coupler to the wire. Easy stuff. Works just the same as it did with batteries, just a whole lot cheaper. My particular adapter shows more like 10.5V output when tested but I guess the Chrony F1's circuits don't mind, as readings are consistent with those taken using a battery. Oh, and this one also delivers 600mAh if that's important.


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 Post subject: Re: Chrony question
PostPosted: Tue Nov 29, 2016 5:53 pm 
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Joined: Mon Sep 03, 2007 7:56 pm
Posts: 173
Location: Sidney, BC.
Why not just go to the Source and buy what I suggested? No monkeying around trying to made one when its on the shelf ready to buy? Under $20.00!!!...KEN.


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