How to use refractometer?

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sblakeley
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How to use refractometer?

Post by sblakeley »

So I got one of these w/o an instruction manual via craigslist and have no idea how to use it! Help please!!

http://www.aquariumguys.com/almo-sybon- ... meter.html

This isn't the exact one but it looks like the one I have.
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Pufferpunk
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Re: How to use refractometer?

Post by Pufferpunk »

You need to get some calibration solution to calibrate it. Adjust the level to what the solution is supposed to be by putting some on the glass, close the top glass over it & look into the brightest light you can find. You can adjust the focus, by turning the eyepiece. If you can't get calibration solution, use RO water.

What did you pay for that one? I'm selling a few for $25 ea.
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Re: How to use refractometer?

Post by Nick »

Oh, DO NOT use the sun for the brightest light. These things are NOT UV shielded!
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Pufferpunk
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Re: How to use refractometer?

Post by Pufferpunk »

What does that do to them, Nick?
You are getting sleepy... you only hear the sound of my voice... you must do water changes... water changes... water changes... water changes...

"The solution to pollution is dilution!"
sblakeley
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Re: How to use refractometer?

Post by sblakeley »

I got it along with an entire water chemistry set and a while bunch of odds and ends for $20 off craigslist. The people were moving and taking down their SW tank.
sblakeley
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Re: How to use refractometer?

Post by sblakeley »

Pufferpunk wrote:You need to get some calibration solution to calibrate it. Adjust the level to what the solution is supposed to be by putting some on the glass, close the top glass over it & look into the brightest light you can find. You can adjust the focus, by turning the eyepiece. If you can't get calibration solution, use RO water.

What did you pay for that one? I'm selling a few for $25 ea.
RO water?
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Pufferpunk
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Re: How to use refractometer?

Post by Pufferpunk »

Reverse Osmosis: has no salts, chemicals, etc. in there.
You are getting sleepy... you only hear the sound of my voice... you must do water changes... water changes... water changes... water changes...

"The solution to pollution is dilution!"
Nick
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Posts: 3231
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Location: Middletown, CT
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Re: How to use refractometer?

Post by Nick »

To them? Nothing. However, direct sunlight causes radiation damage to your eyes each time, and it's much worse if it's focused directly onto your eyeball with an optical device.
No matter how magnificent your successes or devastating your failures, the worlds' approximately 5 billion impoverished people could not possibly care less.
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Pufferpunk
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Posts: 32976
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T miurus
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T biocellatus
C valentini
C coranata
C papuan
C lorteti
DPs
suvattii
burrfish
T niphobles
Location (country): USA, Greenville, SC
Location: Greenville, SC
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Re: How to use refractometer?

Post by Pufferpunk »

Never thought of that. I don't look directly into the sun though, just out a bright window.
You are getting sleepy... you only hear the sound of my voice... you must do water changes... water changes... water changes... water changes...

"The solution to pollution is dilution!"
Nick
Former Staff Member
Posts: 3231
Joined: Sun Oct 22, 2006 8:47 pm
My Puffers: Mine:
GSPs - Shakespeare and Jillybean
F8 - Velvet
My fiance:
DP - Emma Goldman
Narrow Lined Puffer - Ulrike
Location (country): Northeastern USA
Location: Middletown, CT
Contact:

Re: How to use refractometer?

Post by Nick »

Indirect sunlight should be OK... just don't use a bright sunny sky.
No matter how magnificent your successes or devastating your failures, the worlds' approximately 5 billion impoverished people could not possibly care less.
sblakeley
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Re: How to use refractometer?

Post by sblakeley »

Got some RO from the LFS (free of charge) now what?
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Re: How to use refractometer?

Post by DarkStorm »

add a drop or 2 and use the dials to set the calibration at 0 (blue line for the one i use.)
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