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How to calibrate a new digital scale?
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Discussions > Espresso > Q and A > How to calibrate...  
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mcgargantuette
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Posted Thu Feb 7, 2008, 4:54pm
Subject: How to calibrate a new digital scale?
 

I just received the $11 digital scale I ordered from DealExtreme (read about it in a thread here -- thanks!).

It looks like a decent little scale, but I can't seem to understand the instructions for calibrating the scale.  (The instructions leave a lot to be desired in terms of clarity!)  The instructions say:

(1)  "press 'on' till it shows '8888' and '0.0.'"   [okay, no problem]
(2)  "Press 'on' again and hold it for 3 seconds till it displays '0.'  Then release the button."  
(3)  "It displays the verifying value like 500.0 or 100.0 etc"  [okay, but my display actually shows 1000.0 rather than 500 or 100; is that okay?]
(4)  "When 'g' is flickering, press the weight onto the pan.  The weight value should be the capacity value of the scale."  [Here's my first problem -- what "weight" am I supposed to press onto the pan?  Does it mean I should find something equal to the maximum capacity of the scale?  If so, how do I find something that weighs 1000 g ?????]
(5)  "5 seconds later, 'g' stops flickering.  The calibration is over."  [if I put something on the scale that I know weighs 1 oz, the scale says it actually weighs 35+ oz, and the "g" never stops flickering]

So, does anyone reading this have the $11 scale and/or any idea how to calibrate it?

Thanks!
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gime2much
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Posted Thu Feb 7, 2008, 5:01pm
Subject: Re: How to calibrate a new digital scale?
 

mcgargantuette Said:

(4)  "When 'g' is flickering, press the weight onto the pan.  The weight value should be the capacity value of the scale."  [Here's my first problem -- what "weight" am I supposed to press onto the pan?  Does it mean I should find something equal to the maximum capacity of the scale?  If so, how do I find something that weighs 1000 g ?????]


Thanks!

Posted February 7, 2008 link

1000 g = 2.2 lbs if that helps. And no I would not use a kilo of an illegal product from Columbia.

Dan

 
Dan Brewer
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mcgargantuette
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Posted Thu Feb 7, 2008, 5:36pm
Subject: Re: How to calibrate a new digital scale?
 

I think that DOES help!  Now to find 2.2lb of a (legal) substance ...

Thanks!
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Breeze
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Breeze
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Posted Thu Feb 7, 2008, 7:28pm
Subject: Re: How to calibrate a new digital scale?
 

mcgargantuette Said:

I think that DOES help!  Now to find 2.2lb of a (legal) substance ...

Thanks!

Posted February 7, 2008 link

Can't help you here!  Ha!!!
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JVBorella
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JVBorella
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Posted Thu Feb 7, 2008, 7:40pm
Subject: Re: How to calibrate a new digital scale?
 

Most shops that sell scales also offer the correct calibration weight as an extra cost option. Unless you spring for one you would need a correctly calibrated scale to verify that the weight you are going to use for calibration is exactly the weight you need.

 
John
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joey
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Posted Sun Feb 17, 2008, 9:19pm
Subject: Re: How to calibrate a new digital scale?
 

instead of purchasing a weight you can use nice and shiny nickels.  they're 5 grams each.
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mcgargantuette
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Posted Sun Feb 17, 2008, 10:02pm
Subject: Re: How to calibrate a new digital scale?
 

That's a lot of nickels!

Actually, I ended up doing something that was simple and seemed to work.  I got a fairly big water bottle, and put it on my kitchen scale, then added water to the bottle until the scale told me it weighed 2.2 lbs.  Then I used the 2.2 lbs water bottle to follow the digital scale's calibration procedure.  

It may be a fraction off, but I think it's close enough, and at least it's consistent.

Thanks.
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gime2much
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Joined: 10 Dec 2004
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Posted Sun Feb 17, 2008, 10:51pm
Subject: Re: How to calibrate a new digital scale?
 

mcgargantuette Said:

That's a lot of nickels!

Actually, I ended up doing something that was simple and seemed to work.  I got a fairly big water bottle, and put it on my kitchen scale, then added water to the bottle until the scale told me it weighed 2.2 lbs.  Then I used the 2.2 lbs water bottle to follow the digital scale's calibration procedure.  

It may be a fraction off, but I think it's close enough, and at least it's consistent.

Thanks.

Posted February 17, 2008 link

Wait....

Was the kitchen scale used for the initial 2.2 measurement calibrated?

How about this......"A pint and a pound the world around......old bakery measurement from time out of mind.

Dan

 
Dan Brewer
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mcgargantuette
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Joined: 27 Dec 2007
Posts: 31
Location: los angeles
Expertise: Just starting

Espresso: gaggia coffee deluxe
Grinder: innova I-1
Posted Sun Feb 17, 2008, 11:24pm
Subject: Re: How to calibrate a new digital scale?
 

Yup, kitchen scale had been recently calibrated ...

Still, might try to round up 200 nickels just to double-check!
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caeffe
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Posted Mon Feb 18, 2008, 9:14pm
Subject: Re: How to calibrate a new digital scale?
 

Wow, 100 or 200 nickels as a calibration scale!  Who'd have thought?

I've got the same scale so I'm also interested in this.

So....
What's the actual weight of a nickel or quarter?  It must have some sort of tolerance - +/- x grams?
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