LMBR chrono

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Wobbly

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Probably a stupid question, but

when using the LMBR on the first screen to register the energy and velocity, I get the message 'range' instead of a reading.

What does this mean? I haven't been able to spot anything in the instructions. Shrug tt

Help please.
 
After you switch it on it should display gain then after a short delay it should display an E and V value. "1" in the diagram below.

Press switch S1 and it will display the projectile weight screen. "2" in the diagram below. Press S2 or S3 to change and S1 to exit.

1740570379646.png
 
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Can you give a full account then of what has happened?

Have you made a shot and it hasn't registered?

Pictures are really helpful.
 
Yes, I have fired a string of about 10 shots, each with the barrel in the same position. Most have registered a power and velocity reading, but one in the middle and then the last two just show 'range'.
 
Wobbly said:
Probably a stupid question, but

when using the LMBR on the first screen to register the energy and velocity, I get the message 'range' instead of a reading.

What does this mean? I haven't been able to spot anything in the instructions. Shrug tt

Help please.
Click to expand...
I had the same thing a couple weeks ago.
I was shooting through it, outside in bright sunlight. I'd say most of the shots I took came up with "range" I put new batteries in but no change.
Went into my garage and shot the rest of the string and didn't get the "range" message again.
I've read that sunlight doesn't effect the sensors in a LMBR.
I call ********!
My Combro CB-625 mk4 also gives false or no results in bright sun light.
Steve
 
From memory the muzzle should be 5-8cm from the LMBR. Mine says range if I'm not in this range.
 
If you accidentally put your hand between the 2 sensors it will register "Range!" on the screen, but will only register a measurement above a certain velocity, in other words, your hand gives a false reading, nothing to worry about.
 
Fishy-Steve said:
I had the same thing a couple weeks ago.
I was shooting through it, outside in bright sunlight. I'd say most of the shots I took came up with "range" I put new batteries in but no change.
Went into my garage and shot the rest of the string and didn't get the "range" message again.
I've read that sunlight doesn't effect the sensors in a LMBR.
I call ********!
My Combro CB-625 mk4 also gives false or no results in bright sun light.
Steve
Click to expand...

I've tried pretty well all the end-user chronos out there (except the Nate chrony and the Labradar), and my experience is that ALL of them that use light are affected by direct sunlight - and most by some forms of interior lights as well. When I tested them, the Caldwell was particularly bad and the Skan probably least affected. When you look at their design, it's pretty obvious why.
 
Fishy-Steve said:
I had the same thing a couple weeks ago.
I was shooting through it, outside in bright sunlight. I'd say most of the shots I took came up with "range" I put new batteries in but no change.
Went into my garage and shot the rest of the string and didn't get the "range" message again.
I've read that sunlight doesn't effect the sensors in a LMBR.
I call ********!
My Combro CB-625 mk4 also gives false or no results in bright sun light.
Steve
Click to expand...
Does the garage have fluorescent or LED lighting ?
Both those types of lighting flicker at 50Hz, which may affect the chronograph's ability to measure correctly.
50Hz is invisible to the human eye but perfectly "readable" by the sensors in some chronographs.
 
Eeyore said:
Does the garage have fluorescent or LED lighting ?
Both those types of lighting flicker at 50Hz, which may affect the chronograph's ability to measure correctly.
50Hz is invisible to the human eye but perfectly "readable" by the sensors in some chronographs.
Click to expand...
Both the LMBR and the CB-625 seem to work fine in the garage(fluorescent lighting).
It's out side I have trouble.
The CB-625 MK4 that I have, cannot be trusted to give true readings outside in bright sunlight.
I only spotted there was a serious problem when I was testing on a sunny day with intermittent cloud cover.
My readings were fluctuating massively.
 
I don't have an LMBR but I guess they use infra-red LEDs as transmitter/receiver, so could it be that bright sunlight, having more infra-red than fluorescent lighting, will affect these more?
 
Fishy-Steve said:
Both the LMBR and the CB-625 seem to work fine in the garage(fluorescent lighting).
It's out side I have trouble.
The CB-625 MK4 that I have, cannot be trusted to give true readings outside in bright sunlight.
I only spotted there was a serious problem when I was testing on a sunny day with intermittent cloud cover.
My readings were fluctuating massively.
Click to expand...
I have an LMBR and have had dodgy readings when I used it under a fluorescent light in my garage, though I moved and it was fine under the LEDs, which are also located higher. Might just have been the direction the light was coming from.
Woodcrafts said:
I don't have an LMBR but I guess they use infra-red LEDs as transmitter/receiver, so could it be that bright sunlight, having more infra-red than fluorescent lighting, will affect these more?
Click to expand...
I'd absolutely expect to have problems in direct sunlight, but it should be fine in shade. I guess it might depend on how sensitive the LED sensors are and how well protected from light ingress ?
 
Wobbly said:
Probably a stupid question, but

when using the LMBR on the first screen to register the energy and velocity, I get the message 'range' instead of a reading.

What does this mean? I haven't been able to spot anything in the instructions. Shrug tt

Help please.
Click to expand...
Have you just changed the batteries as the bottom plate only lines up with the top sensors one way.
 
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