[HockiumGuru]

would this scale suffice for measuring out fert amounts?

http://cgi.ebay.ca/0-1-g-gram-Diamo...=39:1|66:2|65:2|240:1318&_trksid=p3286.c0.m14

if not, which would be recommended? (at low cost)

 

[snickle]

Re: Newbie Guide to PPS-Pro

would this scale suffice for measuring out fert amounts?

http://cgi.ebay.ca/0-1-g-gram-Diamo...=39:1|66:2|65:2|240:1318&_trksid=p3286.c0.m14

if not, which would be recommended? (at low cost)

This would be better.

 

[HockiumGuru]

Re: Newbie Guide to PPS-Pro

This would be better.

what would?

 

[snickle]

Re: Newbie Guide to PPS-Pro

Sorry:

This is what I use.

http://cgi.ebay.ca/100-x-0-01-GRAM-DIGITAL-POCKET-SCALE-JEWELRY-SCALES-ESA_W0QQitemZ160294374725QQcmdZViewItem?hash=item160294374725&_trksid=p3286.c0.m14&_trkparms=72%3A1215|66%3A2|65%3A12|39%3A1|240%3A1318

 

[supersmirky]

Re: Newbie Guide to PPS-Pro

I'm confused. Both scales look good to me but why is the $20 scale better?

 

[blang]

Re: Newbie Guide to PPS-Pro

You don't need to spend $20. I bought a scale for about $8 shipped. Unfortunately, I can't remember who I bought it from but if you search this website, there are other discussions about purchasing a scale. That is where I got my information from. Whoever I purchased it from was quick and inexpensive.

 

[supersmirky]

Well mine was about $9 shipped....so I was wondering why this one worked better given they both do grams.

 

[blang]

I have no idea. Maybe more features? Bigger? Just want to charge more? Don't know.

 

[Left C]

Do they measure in:
0.1 grams
0.01 grams or
0.001 grams

You really need a scale that will measure to 0.01 grams for our use. One that measures to 0.001 would be even better.

I have one scale that measures to 0.001 grams for measuring small amounts and an older scale that measures to 0.1 grams for measuring larger amounts.

 

[supersmirky]

The one I have is to the .1 gram. Is this sufficient or do I need to go buy a different kind?

 

[Left C]

The one I have is to the .1 gram. Is this sufficient or do I need to go buy a different kind?

I'd use it and make a best guess if the number includes 2 or 3 decimal places. I used the my 0.1 gram scale for many years and it was good enough for me.

Most of the time, a scale that measures to one decimal place in grams should be good enough. You just need to calculate the percentage of error involved and make sure that your measurement is close enough for what you intend to do..

If you were making standard testing solutions, a three or more decimal place scale in grams would be much better.

I hope this helps you, supersmirky.

Left C

 

[Fortuna Wolf]

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93543
Sometimes goes on sale for $10, measures to .1 gram in .1 gram incruments. Fits in your pocket. Can be calibrated. Great for weighing out chemical powders and dried plant matter!

 

[HockiumGuru]

why the need to be so precise when the measurements are in whole gram's (no decimals), as opposed to say 6.25g's?

 

[Edward]

Plus - minus one gram is good enough.

 

[HockiumGuru]

Plus - minus one gram is good enough.

so there is no real need for a scale measuring 0.1g's vs one measureing .01g's for the PPS-Pro method?

 

[Edward]

A digital scale at 0.1 gram is nice but not necessary. Let's say KH2PO4 in solution #1 is the smallest amount of 6 grams per litre so keep adding until the scale says 7 grams which is perfectly ok. Other chemicals are larger quantities as 41 grams of MgSO4 so 41 on the display of a digital scale is perfectly fine. Don't worry about it, if you compare this with spoon users whose error is +/- 100% we are still pretty accurate.

 

[wwh2694]

Re: Newbie Guide to PPS-Pro

What type of scale do I need? I saw alot in ebay but dont know what to get.. they have 500 x 0.1 gram digital pocket scale for $12.95, is this ok?

 

[Left C]

Re: Newbie Guide to PPS-Pro

A scale that will weigh to 0.01 grams is a better choice. http://search.ebay.com/search/search.dll?from=R40&_trksid=m37&satitle=0.01+gram+scales&category0=

I used a 200 gram 0.1 gram scale for years until I got an 100 gram 0.001 gram scale.

 

[Left C]

Re: Newbie Guide to PPS-Pro

Please read this link as well. It will help you too. It all depends on how accurate that you want to be. Edward makes a good point.

 

[wwh2694]

Re: Newbie Guide to PPS-Pro

Thank you all. I just got one for 15 bucks the 100 x 0.01 grams free shipping at ebay.