[CarbonelementRK]

I just got an omp grain scale and i cant get it calibrated. It says use a 200gr weight. Well i push the calibration button and set the weight on it and it blinks for awhile then it says "fail". What am i doing wrong?

 

[Taz575]

I just turned mine on and used it and didn't calibrate since I don't have anything to calibrate it with. The arrow rest is around 146gr on mine IIRC

 

[Taz575]

Oh yeah, if you don't use a 200gr weight, it will give a Fail message. I tried using the arrow rest to calibrate and it didn't work. Either it's not close to 200 gr or the batteries are low?

 

[fasteddie2488]

JUNK!!! I had one and sent it back to them. Straight out of the box didnt work they told me it was a defective scale and sent me a new one.... Guess what! New one JUNK!!!

 

[bucks/bulls]

Your reading it wrong I think..I'm pretty sure it needs to be calibrated at 200 grams not 200 grains..

 

[Taz575]

I checked mine against my Dillon Precision digital reloading scale and it was .3 grains off weight wise only, even w/o being calibrated.

 

[ramboarhunter]

I have an OMP grain scale. All I do is turn it on and if it does not read "0" I punch the calibration button and it goes to "0". If I want to weigh arrows I put the arrow holder on, hit cal., it then goes to "0" and I can weigh my arrows

 

[Taz575]

I cheat, I put the little red block to hold the arrows on the scale before I turn it on