I have a usx-500 balance scale. I put new batteries in it and it is off. Does anyone know  how to calibrate it? A 125 field point weights 86 grains on it now.

Thanks,
Howard

add 39 grains to your readings    


that was wrong, I apologize  :D

No instructions on the inside of the scale? My usc-300 does but instructs me to use the calibration weight that was included.

Basically, turn the scale on. Put the calibration weight in center of scale. press CAL key till display shows 100.0 from left to right and then shows 100.0.
Scale is ready.

Edit: mind that these are two different models, apologies if this doesnt help.

Regards,
 Dave

Thanks Dave, when I put the calibration weight on the scale and press the cal key it goes to 0. Put the point on and it still weights 86. Must be broken.

Howard

Before you give up try another set of batteries.
Ron

(I have a cheap digital scale, but I don't recall the make or model, but not had problems.)

1.  Does the scale read "0" with nothing on it?  If not, that is when to "tare" it to zero.

2.  Is the scale reading currently in "grains" mode?

3.  Does THIS field point actually weigh 86 grains?

The scale reads "0" with nothing on it. All points 125 point I put on it weights 86 and the scale it set to grains.

I'm stumped.  Sort of sounds like the scale is faulty.  Maybe email the manufacturer?