Anyone have the SF-400D 500g x 0.01g scale that can tell me what G/weight you use to calibrate it? Thanks!
SF-400D scale?
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I have one of these. I also lost or discarded the instructions 
I am pretty sure it said 100g. I tried to calibrate mine one time with a hundred weight and ended up putting it in to 300G total weight mode and never managed to calibrate it. I lived with it like that for a few months until the batteries finally died and when I changed the batteries it reset back to factory settings. I have checked it with weights and it is spot on so I'm not messing with it any more 
You can use coins to check your accuracy. Just google the weight of US coins.
BTW: I'm flying in to Detroit Saturday and staying in Mesick and then T-City for the next ten days so I guess we will be neighbors for a little while
I am pretty sure it said 100g. I tried to calibrate mine one time with a hundred weight and ended up putting it in to 300G total weight mode and never managed to calibrate it. I lived with it like that for a few months until the batteries finally died and when I changed the batteries it reset back to factory settings. I have checked it with weights and it is spot on so I'm not messing with it any more You can use coins to check your accuracy. Just google the weight of US coins.BTW: I'm flying in to Detroit Saturday and staying in Mesick and then T-City for the next ten days so I guess we will be neighbors for a little while
Thanks for the info! I'll give the coin thing a shot and see where it's at. I lived, worked and retired from Detroit. It's a nice place to be from and hope I never need to go back. Good luck and thanks again!
Yep, the coin tip is great, practically all coin weights are on wikipedia, btw, so I just found a coin or two and looked them up and then tested...
My two very cheap china weights are not 100% precise, meaning if weighing the same coin ten times, then about 7 times it's the same value and the other times slightly off, but no more than 0.03g, so I don't care and don't think it makes any difference in my mixes and especially if e.g. making 30+ ml batches... (I couldn't get the aw one unless paing over 3 times the price in customs and shipping).
Also, a single drop is generally about 0.02g, so it's at most one and a half drop off
It can also make a difference where exactly you place the coin each time, btw, so shoot for the exact middle...
My two very cheap china weights are not 100% precise, meaning if weighing the same coin ten times, then about 7 times it's the same value and the other times slightly off, but no more than 0.03g, so I don't care and don't think it makes any difference in my mixes and especially if e.g. making 30+ ml batches... (I couldn't get the aw one unless paing over 3 times the price in customs and shipping).
Also, a single drop is generally about 0.02g, so it's at most one and a half drop off
It can also make a difference where exactly you place the coin each time, btw, so shoot for the exact middle...
My average drop is 3 for Pg and .04 for Vg. That is an average over a lot of different trials with a lot of different types of drippers. So ya, as long as you aren't making 5ml test batches where it Might matter, you are good to go.
P.S. A nickle weighs 5 Grams.
P.S. A nickle weighs 5 Grams.
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