Anyone know the procedure to calibrate a PACT powder scale? I just got one at a price I could not refuse but it don't have an instruction manual with it. It works great, in that it powers up and talks to the powder dispenser. However, I don't know how to calibrate/zero the scale. It has 2 weights with it. A 20 gram and a 50 gram.

1 make sure you have a stable 0.0
2 press cal twice
3 the scale will ask you to give a 0 weight
4 push cal again
5 the scales reads hold for a few seconds then displays 20
6 place 20 gram weight on scale and press cal
7 will display hold again then 50
8 remove the 20 and put on the 50
and press cal
9 will display hold then 70
10 add the 20 to the 50 and press cal
11 will display hold then ask for 0 again
12 remove both weights and press cal
13 the display will read 0

PCCT's # is 800-722-7462

Thunder Stick, thanks for your help, I appreciate it.

I calibrated mine by chunking it in the garbage. Most inaccurate POS I ever had. PACT could have cared less. My level of pistivity was unbelievable with the PACT scale.

I have 3 electronic scales, including a PACT.

I have been using the PACT for over 10 years now. (It is one of the early ones which can't talk to a powder dispenser.)

My PACT scale is my "go-to" scale for all my reloading where accuracy is important enought to justify hand-weighing every charge thrown.

For really large runs of hunting, plinking, or other ammo where accuracy is not critical, I use my other scales and their "automatic" powder dispensers.