joaquin1119
New member
i have a Portable Refractometer for the first time..How does it work and what the salt level should be ?? and what does PPT stand for and what number should that be in??
Joaquin
Joaquin
Portable Refractometer
- Thread starter joaquin1119
- Start date
powerbuddy
New member
Did it come with a manual?
Let me know how it works with you....I was planning on getting one myself.
Let me know how it works with you....I was planning on getting one myself.
joaquin1119
New member
Nah no manual at all..
powerbuddy
New member
Did you order it online?
joaquin1119
New member
Yea i order it from online at drsfostersmith
powerbuddy
New member
Hmmmm.....I was about to order them from too...Din't come with a manual? Seems like i have to look somewhere else then.
joaquin1119
New member
no manual at all..=/ kinda sucks too
L and L
New member
Parts Per Thousand.
When you look thru the eye piece do you see:
Range: 0 - 100 parts per thousand salinity and 1.000-1.070 specific gravity.
Just get a clean dropper, flip the lid up and add a couple of drops on the prism. Close the lid and take the refractometer to a good light source. I flip open my canopy and hold it close to my MH.
Look into the eye piece and read the specific gravity. Natural sea water (NSW) is 1.025 +- (depending on where you are in the world in can vary).
When you look thru the eye piece do you see:
Range: 0 - 100 parts per thousand salinity and 1.000-1.070 specific gravity.
Just get a clean dropper, flip the lid up and add a couple of drops on the prism. Close the lid and take the refractometer to a good light source. I flip open my canopy and hold it close to my MH.
Look into the eye piece and read the specific gravity. Natural sea water (NSW) is 1.025 +- (depending on where you are in the world in can vary).
joaquin1119
New member
Yea that what i see.. so my saltwater should be like 1.020 then??
WaterChallenged
New member
I believe most shoot for 1.025 - 1.027.
WaterChallenged
New member
I believe most shoot for 1.025 - 1.027.
Calibrate it before you use it to test your tank's water. Warm some RO water to the tank's temperture and read its salinity. Adjust the screw on top to calibrate the reading to 1.000. Then you are ready to test your tank's water. You only have to calibrate it every so often.
I got mine on ebay too. Yes there in no manual with it, but knowing the range to be then it's not that complicate to use. However yours may have the problem of re-calibrate each time you use it as some pm me to ask if I have the same problem. If so you can un assembly the unit and use a piece of soft plastic or spring to keep the screw from moving. I did it this way and no re-calibrate I ever have to do again.
good luck
good luck
joaquin1119
New member
cool...yea i just finish doing a little test..pretty cool..
BloatedSwimBladder
Member
I just got one a couple of weeks ago.
If you remove the foam inside the top, the manual should be behind it. I know it is a dumb place to put it.
At least that is where I found mine.
If you remove the foam inside the top, the manual should be behind it. I know it is a dumb place to put it.
At least that is where I found mine.
joaquin1119
New member
haha yea i got the manual now..it was on top of it..that is a dumb place to put it..thx for letting me know =]
L and L
New member
Unless this person lives on a space station, it's 1.000 for the specific gravity.
There are two scales in the viewfinder: specific gravity and ppt Salinity. The ppt salinity will be zero.
Here's a thread by Dr Foster and Smith.
http://www.reefcentral.com/forums/s...adid=796382&highlight=calibrate+refractometer
And here is an article in Reefkeeping:
Reef Aquarium Salinity: Homemade Calibration Standards
http://www.reefkeeping.com/issues/2004-06/rhf/index.php
There are two scales in the viewfinder: specific gravity and ppt Salinity. The ppt salinity will be zero.
Here's a thread by Dr Foster and Smith.
http://www.reefcentral.com/forums/s...adid=796382&highlight=calibrate+refractometer
And here is an article in Reefkeeping:
Reef Aquarium Salinity: Homemade Calibration Standards
http://www.reefkeeping.com/issues/2004-06/rhf/index.php
