Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 07-26-2006, 01:09 AM   #1
Guest
 
Posts: n/a
Refractometer with no directions?

Hey all,

Just received my portable refractometer from Dr. Foster+Smith and it came with no directions.

This one http://www.drsfostersmith.com/produc...pc=1&N=0&Nty=1

I now know how to use, however to calibrate I am confused. Just place distilled water on the prizm and make sure it is 0??

And distillled, so like Poland Spring is ok?
__________________
  Reply With Quote
Old 07-26-2006, 02:38 AM   #2
Aquarium Advice Addict
 
Join Date: Apr 2003
Location: Champaign, IL
Posts: 2,725
I'm not a salty, but I inherited a refractometer from one. Put a few drops of distilled water on the prism (enought to cover the surface and close the thing down, set the "shadow line" to zero (should be with that tiny screwdriver and the thing at the top). Wipe the water away with a soft cloth. Put a few drops of salt water and repeat.
__________________

RogerMcAllen is offline   Reply With Quote
Old 07-26-2006, 07:11 AM   #3
Aquarium Advice Freak
 
Join Date: Jun 2006
Posts: 295
Poland Sprigs water and distilled water are not the same thing. However, they did seem to produce similar results when calibrating my FS refractometer. I bought a gallon of distiled water at a CVS drug store for $1.50.

No adjustment was needed to re-calibrate my new unit. I keep the distilled water handy so that I can clean the salt water off the refractor after use before drying with a soft cloth.

It may pay to check calibration periodically but so far mine hasn't changed.
__________________
46 gal FOWLR
11lb Live Rock - 40lb Live Sand
ProClear Pro 75 - LR rubble & skimmer in sump
AC 300 HOB
AC 402 Powerhead - AC 301 Powerhead
Charlie is offline   Reply With Quote
Old 07-26-2006, 10:07 AM   #4
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
Both Roger and Charlie are correct. Use distilled water, about 3-4 drops, let sit for about 30 seconds (this really isn't important, because that refracto has temp correction, unless the water you are using is really hot or cold...).
If i remember correctly, mine was off a little bit and I had to use the screw driver. Just line up the two lines and you are ready to go.
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 07-26-2006, 11:47 AM   #5
Tex
Aquarium Advice Freak
 
Join Date: Jan 2006
Location: Wichita Falls, Texas
Posts: 228
Nice refractometer and you don't really need instructions. Use distilled water, I bought a gallon for about 70 cents, add 3 or 4 drops to the glass with the included dropper, close the lid and press gently to spread the water out evenly. Hold up to a light source and adjust the shadow line to zero. That's all there is to it. There is also a focus adjustment on the eye piece.

I bought the exact same model on eBay for about $22 plus shipping. The total was less than $30.

this one
__________________
7 month old 100 gallon. Hopefully on my way to a great reef tank. A few small fish and a few small soft corals. T5 HO Lights and ro/di unit.
Tex is offline   Reply With Quote
Old 07-26-2006, 12:00 PM   #6
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
One more thing. I got saltwater on the metal pin, because I flipped the arm to hard, it splashed the SW on the metal and now it is rusting...LOL! Just a little personal experience....
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 07-26-2006, 12:05 PM   #7
Moderator Emeritus
 
Join Date: Dec 2002
Location: Franklin, TN
Posts: 3,968
I thought the pin was stainless. I think mine is, years of use and no rust and I'm not ultra careful about getting saltwater on the pin.
__________________
Bearfan is offline   Reply With Quote
Old 07-26-2006, 12:05 PM   #8
Guest
 
Posts: n/a
Thanks everyone. I did it, and this thing seems great. Can't wait to use it!
__________________
  Reply With Quote
Old 07-26-2006, 12:12 PM   #9
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
Quote:
I thought the pin was stainless.
I hear you, but stainless doesn't mean rust proof, at least in my experience. It is just more resistant. I would imagine, the movement and friction would rub off the stainless coating....But who knows....
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 07-26-2006, 01:58 PM   #10
Aquarium Advice Addict
 
newfound77951's Avatar
 
Join Date: Feb 2006
Location: St Petersburg FL
Posts: 2,114
Quote:
stainless doesn't mean rust proof
yep, it doesn't....common misconception

and yes, Poland spring and RO/DI are not the same, but if the Poland spring water (or tap water, for that matter) didn't have a salinity of 0 I'd be very worried anyway.....
__________________

__________________
newfound77951 is offline   Reply With Quote
Reply

Tags
refractometer

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
need the directions for testing ammonia with api card divedeep1689 Saltwater Reef Aquaria 2 10-21-2009 09:52 PM
Aquascaping Directions marquesalan Saltwater Fish Only & FOWLR 13 03-08-2008 11:58 AM
DIY ca reactor w/ directions. this thing is NUTS!! seahunter DIY Projects 5 01-29-2005 03:10 AM
seachem cupramine directions steve r Saltwater Reef Aquaria 6 01-21-2005 09:37 PM
Coppersafe dosing directions toddwess Saltwater & Reef - Sick Fish or Coral 8 09-03-2003 03:51 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 12:11 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.