DigiWeigh 100 X 0.01 Gram Digital Jewelry Pocket Scale "scale read 2" Questions

...scale reads HHH and the only thing it can do is calibrate but after it flashes 100g then want me to place things on it, it just stays on ZERO? Answer 3. I basically removed the 2 screws one under the ...

my digiweigh keeps reading out 2 i changed the batteries but it still is reading out 2 what does out 2 mean it needs to be cal turn on hit tare hold down until number show mine went crazy -628.2 ...

2 it will say insuffecent. how do i reset the machine to get a true reading? thanks Your machine sound like normal to me! For charging to the vehical you should have minimum 3.30 lbs of refrigerant on