Greetings all. Took my new CED M2 Chronograph out to the range to try it out, but alas, had problems.

Shooting conditions were: Desert range (Hard packed sand), bright sun to the right (4 o’clock position) relative to the sensors, clear sky, approx. 90 degrees, 5 – 7 mph wind. Fresh, new battery installed.

Rifle: Savage .308 bolt action, factory ammo.

Errors messages (From the manual):
E0 - Front sensor didn't read
E1 - Rear sensor didn't rear

I set the unit up according to the directions with the sensors 10 feet in front of the muzzle. I powered up the unit, shot a round and received an E1 (Rear) error. I couldn’t clear the error so powered down the unit, powered back up, and fired another round, which resulted in another E1 error. I repeated this several times, all with the same result- E1 error that I couldn’t clear. I then switched the input cables, fired a round, and received an E0 (Front) error. I then switched the sensors, insured the input cables were correct for front & rear sensor, fired a round, and received an E0 error. I couldn’t clear the error so powered down the unit, powered back up, and fired another round, which resulted in another E0 error. I again repeated this several times, all with the same result- E0 error that I couldn’t clear. I then switched the sensors again, moved them back to 15 feet from the muzzle, insured the input cables were correct for front & rear sensor, fired a round, and again received an E1 error. Throughout this testing/trouble shooting the constant has been the suspect sensor as it doesn’t read whether or not it’s in the front or rear, or whether the cables are correct in relation to sensor position or switched.

What do you think? Defective sensor? Thanx.

Cheers,

Mark
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