Sartorius Entris 64-1S Drifting

[bbowles]

I have the Sartorius Entris 64-1S scale with The Ingenuity Trickler system. It works great. However, recently I started noticing my scale takes several minutes to stabilize once I turn it on. And then after using it and verifying after have loaded some cases it has changed again. Small amounts of drift such as 0.026 to 0.050 or so. About a kernel or so of weight drift. It's not much but up to now it has taken very little time to stabilize and then rarely moved after was tared. I don't have anything like a line conditioner or antistatic mat etc. Just plug in and go.
Any ideas what is happening? Do I need to change my setup such as line conditioner, surge protector etc? It is always been in a separate room in my house with climate control. I have changed nothing. Never did anything to scale either. Thanks for the help!

 

[acourvil]

IIRC, the instructions recommend turning it on a couple hours before use to let it get to a stable temperature. But I also run a line conditioner. On a bad day, I see maybe .010 drift, usually it is .006 or less during a loading session.

 

[bbowles]

IIRC, the instructions recommend turning it on a couple hours before use to let it get to a stable temperature. But I also run a line conditioner. On a bad day, I see maybe .010 drift, usually it is .006 or less during a loading session.

Thanks! I used to get almost no drift also even when started loading after turning on and waiting only 5 min. I will look into a line conditioner also.

 

[bbowles]

Any particular line conditioner work better for our use?

 

[acourvil]

I use a Furman PST-8 but I can’t really say if it is better or worse than others, it’s the only one I have used. I originally got one for some electronic equipment, then got another one for reloading.

 

[Edsel]

Any particular line conditioner work better for our use?

I use a Furman PST-8 but I can’t really say if it is better or worse than others, it’s the only one I have used. I originally got one for some electronic equipment, then got another one for reloading.

Lines "free of noise" are more important than one would think.

Back in the day (though addressing output more than input), it was a big deal when selecting Power Supplies for the consoles we built.