Magentic Stirrer for Hanna Checker

Plandauesq

Active Member
View Badges
Joined
Jul 18, 2019
Messages
133
Reaction score
72
Review score
+0 /0 /-0
Hi All,

I just purchased an AutoAqua Smart Stir that I plan to use for my Hanna checker vials. Do I need to remove the magnet before placing the vial in the checker? Will the magnet affect the test at all?
 

Dan_P

Valuable Member
View Badges
Joined
Sep 21, 2018
Messages
2,376
Reaction score
2,283
Review score
+0 /0 /-0
Hi All,

I just purchased an AutoAqua Smart Stir that I plan to use for my Hanna checker vials. Do I need to remove the magnet before placing the vial in the checker? Will the magnet affect the test at all?
The magnetic stir bar will not interfere with the reading.
 
BRS

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
45,398
Reaction score
34,443
Review score
+0 /0 /-0
Location
Arlington, Massachusetts, United States
Yes, it came with a tiny stir bar. Do you think it has any effect on the test reading?

I've not seen the Hanna setup to know exactly how it works. If it in any way changes with pathlength of the light beam through the liquid, yes it will have an effect. If it is not physically blocking the light path and does not change the path length in other ways, then it will be fine.
 

rwb500

Community Member
View Badges
Joined
Apr 6, 2020
Messages
36
Reaction score
41
Review score
+0 /0 /-0
Consider a vortex mixer instead of a magnetic stirrer:

 
Aquarium Specialty - dry goods & marine livestock

ingchr1

Valuable Member
View Badges
Joined
Sep 9, 2018
Messages
1,014
Reaction score
705
Review score
+0 /0 /-0
Consider a vortex mixer instead of a magnetic stirrer:

While I'm sure it's nice, it's over 10x the price of the magnetic stirrers mentioned in this thread.
 

rwb500

Community Member
View Badges
Joined
Apr 6, 2020
Messages
36
Reaction score
41
Review score
+0 /0 /-0
While I'm sure it's nice, it's over 10x the price of the magnetic stirrers mentioned in this thread.

I didn't mean to suggest that it be purchased from the manufacturers website. Used ones are ~$30 on ebay.


This is the tool widely used in laboratories to mix small vials.
 

Spieg

Valuable Member
View Badges
Joined
Jan 12, 2020
Messages
1,089
Reaction score
1,067
Review score
+0 /0 /-0
Have not seen every Hanna Checker on the market, but all that I have seen read sample through the side of the vial, so the stir pill on the bottom should not affect the reading.
 

Malcontent

Active Member
View Badges
Joined
Sep 20, 2018
Messages
366
Reaction score
333
Review score
+0 /0 /-0
I just ordered something similar off Amazon. How has it worked out for you?

Yesterday, it seemed to suddenly stop working as well. I popped the rubber piece off and it looked like a little "foot" that inserted into the rubber piece became disengaged. I put it back the way it seemed like it should go and it was working again.
 

Tori

ReefMoore 103
View Badges
Joined
Oct 10, 2015
Messages
408
Reaction score
281
Review score
+0 /0 /-0
Location
California
Yesterday, it seemed to suddenly stop working as well. I popped the rubber piece off and it looked like a little "foot" that inserted into the rubber piece became disengaged. I put it back the way it seemed like it should go and it was working again.
Good to know, thanks! The one I got was only $56 on Amazon so probably not long until I need to utilize that info
 
AS

PICK the Most Tested & Least Tested Parameters of your Tank (Pick 2)

  • Calcium (most)

    Votes: 44 6.3%
  • Alkalinity (most)

    Votes: 486 70.0%
  • Magnesium (most)

    Votes: 5 0.7%
  • Phosphate (most)

    Votes: 67 9.7%
  • PH (most)

    Votes: 66 9.5%
  • Nitrate (most)

    Votes: 67 9.7%
  • Nitrite (most)

    Votes: 3 0.4%
  • Ammonia (most)

    Votes: 17 2.4%
  • (least) Calcium

    Votes: 10 1.4%
  • (least) Alkalinity

    Votes: 4 0.6%
  • (least) Magnesium

    Votes: 63 9.1%
  • (least) Phosphate

    Votes: 14 2.0%
  • (least) PH

    Votes: 36 5.2%
  • (least) Nitrate

    Votes: 12 1.7%
  • (least) Nitrite

    Votes: 202 29.1%
  • (least) Ammonia

    Votes: 263 37.9%
LA
Top