need new scale

Discussion in 'Darkroom Equipment' started by lee, Aug 16, 2003.

  1. lee

    lee Member

    Messages:
    2,913
    Joined:
    Nov 23, 2002
    Location:
    Fort Worth T
    Shooter:
    8x10 Format
    All,
    I am interested in hearing what brand of scales you guys use. Is it digital or analog and what tipped the scale in favor of your purchace? BTW, Pun intended. :smile:

    lee\c
     
  2. Jorge Oliveira

    Jorge Oliveira Member

    Messages:
    614
    Joined:
    Jun 9, 2003
    Location:
    Brazil
    Shooter:
    35mm
    I have two scales: a very old (triple beam?) mechanical Johnson of England that can measure from 1g and a digital Proscale 250 (Taiwan) that has indications from 0.1g.

    I do not know how precise they are.
    The digital one was purchased ├žause it was a good deal...

    And I do not use any of them to mix paper fixer (hypo+sulphite).

    Jorge
     
  3. Jorge

    Jorge Inactive

    Messages:
    4,532
    Joined:
    Sep 6, 2002
    Shooter:
    Large Format
    I got me a RCBS gun powder digital scale, this one worked for both the darkroom and reloading ammo. You can get them digital sclaes at e bay much cheaper, get one with .01 gr scale, you will not regret it. I have seen them go on e bay in the lab ware section for $50 and up.
     
  4. Bruce Osgood

    Bruce Osgood Membership Council Council

    Messages:
    2,612
    Joined:
    Sep 9, 2002
    Location:
    Brooklyn, N.Y.
    Shooter:
    Multi Format
    Ohaus Tripple beam capable of 2610g. I don't know how accurate it is but a US copper penny weighs at 1.5g if anybody cares to compare? What does your penny weigh?
     
  5. Aggie

    Aggie Member

    Messages:
    4,925
    Joined:
    Jan 1, 2003
    Location:
    So. Utah
    Shooter:
    Multi Format
    ..
     
  6. Ed Sukach

    Ed Sukach Member

    Messages:
    4,518
    Joined:
    Nov 27, 2002
    Location:
    Ipswich, Mas
    Shooter:
    Medium Format
    In a different life, I worked in a Metrology Lab, and calibrating scales was one of our duties.

    A new American dime ($US 0.10) weighs 3.0 grams.

    A new Amrcan nickel ($US 0.05) weighs 5.0 grams.

    Amazingly accurately.
     
  7. Ed Sukach

    Ed Sukach Member

    Messages:
    4,518
    Joined:
    Nov 27, 2002
    Location:
    Ipswich, Mas
    Shooter:
    Medium Format
    No!!! You do that too!!.

    I reload for a beloved pre-war Winchester Model 70 SuperGrade (mid 1941 - from the serial number) in .30-06, and for .38 Special/ .357.

    I'm still "trickling" into an RCBS - Ohaous (sp?) 0-500 "mechanical" scale.

    Let me guess - IMR 4350?
     
  8. Robert

    Robert Member

    Messages:
    747
    Joined:
    Sep 10, 2002
    You don't say if you want a small one or a big one. If I ever decide to get a new small scale this is the one I think:

    http://www.lacywest.com/01scales.htm

    Prices are C$ so divide by about 1.4 to get US$. $50 Canadian isn't that much if it lasts -))

    I've got a BIG old scale that I got from a food service supply place. The only thing in the whole place that wasn't at least 50% over priced. The scale I got can handle 30kg and was fairly reasonable in price. OTOH it's not the sort of thing you use to weigh 50 or 100 grams with.

    So what I'm saying is a scale collection isn't a bad thing. A small fairly accurate one for small things. A big brute for those big heavy things that don't need supper accuracy.
     
  9. Ed Sukach

    Ed Sukach Member

    Messages:
    4,518
    Joined:
    Nov 27, 2002
    Location:
    Ipswich, Mas
    Shooter:
    Medium Format
    Try www.balances.com - a site suggest here on APUG a while ago. Should be *something* there...
     
  10. lee

    lee Member

    Messages:
    2,913
    Joined:
    Nov 23, 2002
    Location:
    Fort Worth T
    Shooter:
    8x10 Format
    thanks Ed that was the link I had before the big computer crash of '03.

    lee\c
     
  11. Jorge

    Jorge Inactive

    Messages:
    4,532
    Joined:
    Sep 6, 2002
    Shooter:
    Large Format
    Yep, you kidding I used to love going shooting, did mostly handgun and clay pigeon, sadly guns in Mexico are hard to have, many permits and stuff and is not wort the trouble.
     
  12. Ed Sukach

    Ed Sukach Member

    Messages:
    4,518
    Joined:
    Nov 27, 2002
    Location:
    Ipswich, Mas
    Shooter:
    Medium Format
    The Permit process is not easy here in Massachusetts, either. I've been a Certified NRA Fireams Instructor for well over twenty years, and recently was certified by the Massachusetts State Police. Even so, I had to wait four (4) months after applying to *renew* my License to Carry Firearms - and that required being fingerprinted again, new photographs, references, and a whole new criminal record - background check.

    Anyway ... I just realized how acurate these powder scales are - reading to 0.1 *grain* and there are 15 grains to the gram. That is .008 gram ...
     
  13. Silverpixels5

    Silverpixels5 Member

    Messages:
    594
    Joined:
    Mar 19, 2003
    Location:
    Houston, TX
    Shooter:
    Multi Format
    I have two digital scales. One accurate to the nearest gram and the other to the nearest 0.1 gram. I use a little weight calibration set to ensure accuracy in the scales. The only problem with a penny is that the weights changed over the years seeing as how they aren't made of copper anymore. Pennies after 1985 or somewhere around there are actually copper plated zinc. Seems copper was too expensive...
     
  14. Aggie

    Aggie Member

    Messages:
    4,925
    Joined:
    Jan 1, 2003
    Location:
    So. Utah
    Shooter:
    Multi Format
    ...
     
  15. Silverpixels5

    Silverpixels5 Member

    Messages:
    594
    Joined:
    Mar 19, 2003
    Location:
    Houston, TX
    Shooter:
    Multi Format
    lol...yea i was pretty sure the year was wrong. We did experiments with them as well in high school. We'd hold them in a bunsen burner with a set of tongs until the penny would start to disfigure, then would tap the penny on the counter so that the molten zinc would splash out. Pretty cool thing to do, but not too smart now that I think about it. Molten zinc really isn't something you'd want to pop on you :smile:
     
  16. fhovie

    fhovie Subscriber

    Messages:
    1,247
    Joined:
    Mar 20, 2003
    Location:
    Port Hueneme
    Shooter:
    Large Format
    I work for a scale company so I can use my samples - $3000 worth of automation. I measure out chemicals in lots - ten kits at a time and seal them in indusrial plastic bags. The scale is calibrated and accurate to .01 gram and the scale operates a hopper with a vibratory feeder and will fill each bag within a few seconds. It is really a nice perk because I'd probably look for an old double beam balance or have to spend several hundred on a cheap precision bench scale. - If I was looking - I would try to find one that is no mre than 500 grams capacity - A decent load cell can support 10,000 divisions (ours will do over 30,000) - that would give .05 gram resolution and you can mix a liter of almost anything with 500 grams capacity. - Frank
     
  17. Donald Miller

    Donald Miller Member

    Messages:
    6,242
    Joined:
    Dec 21, 2002
    Shooter:
    Large Format
    I use a digital scale capable of accuracy to .1 gram. It has a 400 gram maximum capacity and is adequate to all of my needs with the exception of 1 gallons of fixer. In that case I divide the thiosulfate into 3 batches.
     
  18. MikeK

    MikeK Member

    Messages:
    558
    Joined:
    Mar 30, 2003
    Location:
    Walnut Creek
    Shooter:
    Large Format
    I have been using an old Pelouze scale (Balanced Beam). It is as accurate as the weights it came with. It is a pretty cheap scale (stamped brass and aluminium) but works a charm. I have seen them on EBay go very cheaply.

    It is OK up to 50 grams, after that you need to measure in batches. The pans are a little small. But it works for me just fine.


    - Mike
     
  19. MikeK

    MikeK Member

    Messages:
    558
    Joined:
    Mar 30, 2003
    Location:
    Walnut Creek
    Shooter:
    Large Format
    So that explains why you are so evenly balanced :smile:
     
  20. Aggie

    Aggie Member

    Messages:
    4,925
    Joined:
    Jan 1, 2003
    Location:
    So. Utah
    Shooter:
    Multi Format
    ..
     
  21. Black Dog

    Black Dog Member

    Messages:
    3,203
    Joined:
    Jul 21, 2003
    Location:
    Eight miles high
    Shooter:
    Multi Format
    I use a Salter digital scale-has a tare button so you just weigh the chemicals not the container. Before this I used the teaspoon measurement table in The Darkroom Cookbook (VV useful) and this was fine as long as you weren't weighing very small amounts.
     
  22. roy

    roy Member

    Messages:
    1,308
    Joined:
    Sep 7, 2002
    Location:
    West Sussex
    Shooter:
    Medium Format
     
  23. Black Dog

    Black Dog Member

    Messages:
    3,203
    Joined:
    Jul 21, 2003
    Location:
    Eight miles high
    Shooter:
    Multi Format
    Yes, 1g is right. Haven't really needed to weigh smaller amounts- I make up % solutions if using benzotriazole, bromide, pot iodide etc. OK for all my regular brews. BTW, anyone out there wear a dust mask while mixing from raw chemicals?
     
  24. Robert

    Robert Member

    Messages:
    747
    Joined:
    Sep 10, 2002
    I should but it's too much of a hassle. Not smart but then.