Chrony issues

[HolyMeekrob]

Anyone else find that as your chronograph gets cold it starts giving strange numbers? The other day it was giving me strange numbers, and at one point wouldn't even turn on, but that was solved when I warmed the battery, so I'm wondering if a cold battery also led to the strange numbers.
However this was in 40* weather, I had previously been working in 30* weather and it gave me no issues. I'm fairly certain it's not an old battery but bought two more just in case, however haven't been out to try it yet.
It's making me wonder if I can trust the data I've collected over the past couple of range sessions.

 

[Travelor]

I suspect a low battery. I would put a new one in and check the Chrony again.

George

 

[HolyMeekrob]

But this is a new battery right out of the pack which is in date.
So no one's had trouble with cold?

 

[necchi]

I live in MN, no trouble with batteries or the display in 30-40 degree weather.
My biggest difficulty is proper lighting in the natural environment and getting a good refection for the eyes.
It's just something that takes experiment, sunny days, cloudy days, the shades set high, the shades set low, reflected light from the snow,,,etc

Just like shooting, not every day is perfect, :

 

[bighorn06]

I had trouble until I turned on the Infra red lights. I believe it is the low sun angle.

 

[RonAKA]

I've shot down to 32F or so with my Alpha Chrony and had no issues using a standard alkaline battery. No mater what the sky is doing, I generally get better results with no shield over the top of the sight planes. Batteries do lose power as they get colder. Ni Cads seem to be the worst. Alkaline are usually better. Lithium Ion are the best and should deliver full voltage well below freezing. Kind of pricey though.

 

[normmatzen]

I have a beta chroney and have had sometimes questionable results.
Then, one day I did the un-thinkable! I read the instructions! There is a sweet spot within the up-rights for the sensers to track the bullets. I wrapped blue painter's tape around the up-right rods at the appropriate height and when I set the chroney up, I use the best tripod I have and bore sight spot on the center and the appropriate height. A stable, solid tripod is of utmost importance. I use a high quality photographic unit I used for a heavy 4X5 view camera back in the film days. I have also used a lightweight flimsey tri-pod with very poor repeatablility. Just like when I use it for my spotting scope! The shake from muzzle blast can severely modulate the sensers ability to monitor the bullet.

Now, I get VERY repeatable results. Amazing!