Hanna Marine Master 9in1 Tips and Tricks

[tetonair]

For anyone who has the HI97115. What have you found to be helpful when using it? Here are a couple mods I have made;

1) Mark caps, alignment arrow is annoyingly hard to find early in the morning when I do my testing. I also mark one with a C to indicate my clean sample that I use to get the Zero calibration. (I know, not supposed to do that but it sure speeds things up).

2) Automatic Pipets - these are awesome! You will have to get two, one 2-10ml and one 1000ul(1ml). They come with a bunch of replaceable tips too. Amazon product ASIN B0BJTTM6RM. For whatever reason I find that I have to set the big one to 9.9ml to get the bottom of the water curve to line up with the 10ml line. You can store the tips in the case for repeated use if you want to.


3) Containers - It's handy to have one with Aquarium water and another with RODI for cleaning the cuvet each time along with a large microfiber towel. I also like having the RODI to rinse out the pipet tips.


4) App - Hanna app could be better. I am still using AquaticLog. I really wanted to like it but its just not any where close to as useful as something like AquaticLog. For instance, there is nowhere to record salinity readings, nor is there any way of recording dosing and maintenance. It is nice to have the app to select what measurements you are going to do that day and automatically record them.

How about you, how do we get the most out of this kit?

 

[Lasse]

1) I have one kyvette for ULR phosphorous only. Have noted that at least the marine ammonia test can interfere on PO4 readings if you do that in the same vessels as you do your PO4 tests. I have two extra cuvettes.

2) Have got Automatic pipettes too - notice the same with the 10 ml pipette - the lowest par of the water menisk is just in the upper part of the 10 ml mark. I trust the pipette - hence have the lowest part of the menisk at the upper part of the 10 ml mark.

3) I do the same as you - dip the bottom of the kyvette into RO water before cleaning

4) Yes - it could be better. I use GHL profilux logbook - Im able to combine manual measurements with my electrodes. When uploaded to the cloud - I can´t see any possibilities to erase some measurements thata wrong. Therefore - I have manual updating to the cloud - I can edit in the app before uploading. However - no possibilities to make notes or edit after saving to the app

5 Of some reasons - I sometimes get wrong readings of alkalinity. New zeroing and new read can give a total other reading. Its the only parameter with the Master there it seems to be more tricky compared with Checker

6 I store all liquid chemicals in the refrigerator

7 I found the ammonia test to be very stable and useful - the same with Nitrate (HR) and Nitrite (ULR). Note - the nitrite test give the answer in ppb NO2-N which means that it soul be multiplied with 3.29 and divided with 1000 in order to get readings in mg/L NO2

Sincerely Lasse

 

[Harpo]

Thanks for the tips. Why do I have to insert the plastic plug into the cuvette before putting on the cap to prevent it from leaking.

 

[Dan_P]

For anyone who has the HI97115. What have you found to be helpful when using it? Here are a couple mods I have made;

1) Mark caps, alignment arrow is annoyingly hard to find early in the morning when I do my testing. I also mark one with a C to indicate my clean sample that I use to get the Zero calibration. (I know, not supposed to do that but it sure speeds things up).

2) Automatic Pipets - these are awesome! You will have to get two, one 2-10ml and one 1000ul(1ml). They come with a bunch of replaceable tips too. Amazon product ASIN B0BJTTM6RM. For whatever reason I find that I have to set the big one to 9.9ml to get the bottom of the water curve to line up with the 10ml line. You can store the tips in the case for repeated use if you want to.


3) Containers - It's handy to have one with Aquarium water and another with RODI for cleaning the cuvet each time along with a large microfiber towel. I also like having the RODI to rinse out the pipet tips.


4) App - Hanna app could be better. I am still using AquaticLog. I really wanted to like it but its just not any where close to as useful as something like AquaticLog. For instance, there is nowhere to record salinity readings, nor is there any way of recording dosing and maintenance. It is nice to have the app to select what measurements you are going to do that day and automatically record them.

How about you, how do we get the most out of this kit?

Thanks! Great ideas.

 

[Dan_P]

1) I have one kyvette for ULR phosphorous only. Have noted that at least the marine ammonia test can interfere on PO4 readings if you do that in the same vessels as you do your PO4 tests. I have two extra cuvettes.

2) Have got Automatic pipettes too - notice the same with the 10 ml pipette - the lowest par of the water menisk is just in the upper part of the 10 ml mark. I trust the pipette - hence have the lowest part of the menisk at the upper part of the 10 ml mark.

3) I do the same as you - dip the bottom of the kyvette into RO water before cleaning

4) Yes - it could be better. I use GHL profilux logbook - Im able to combine manual measurements with my electrodes. When uploaded to the cloud - I can´t see any possibilities to erase some measurements thata wrong. Therefore - I have manual updating to the cloud - I can edit in the app before uploading. However - no possibilities to make notes or edit after saving to the app

5 Of some reasons - I sometimes get wrong readings of alkalinity. New zeroing and new read can give a total other reading. Its the only parameter with the Master there it seems to be more tricky compared with Checker

6 I store all liquid chemicals in the refrigerator

7 I found the ammonia test to be very stable and useful - the same with Nitrate (HR) and Nitrite (ULR). Note - the nitrite test give the answer in ppb NO2-N which means that it soul be multiplied with 3.29 and divided with 1000 in order to get readings in mg/L NO2

Sincerely Lasse

As always, a superlative contribution!

 

[Simon Massey]

Any one find this impossible to connect to the hanna lab app using a Samsung Android phone,it pairs ok but when I try to connect i get a message you need an app to use this device, hanna have been no help, love the kit apart from this frustrating problem

 

[fnsh1st]

1) I have one kyvette for ULR phosphorous only. Have noted that at least the marine ammonia test can interfere on PO4 readings if you do that in the same vessels as you do your PO4 tests. I have two extra cuvettes.

Question, my marine master shows that it measures ULR Phosphate not ULR phosphorous.
Could this be associated with selecting Chemical Form PO43- (ppm) verses P (ppm) - I am currently using P (ppm)
Being6 months into hobby, I am working to understand all the parameters, how to best accurately measure and when I need to take action verses monitoring the normal swings.

 

[Randy Holmes-Farley Verified Community Expert]

Question, my marine master shows that it measures ULR Phosphate not ULR phosphorous.
Could this be associated with selecting Chemical Form PO43- (ppm) verses P (ppm) - I am currently using P (ppm)
Being6 months into hobby, I am working to understand all the parameters, how to best accurately measure and when I need to take action verses monitoring the normal swings.

If it says it reports phosphate, then that value will be 3.06 times the value as if it had reported phosphorus for the same amount of phosphate in the water.

Most reefers on this forum quote phosphate, not phosphorus.

 

[Lasse]

Question, my marine master shows that it measures ULR Phosphate not ULR phosphorous.
Could this be associated with selecting Chemical Form PO43- (ppm) verses P (ppm) - I am currently using P (ppm)
Being6 months into hobby, I am working to understand all the parameters, how to best accurately measure and when I need to take action verses monitoring the normal swings.

If it says it reports phosphate, then that 774-25will be 3.06 times the value as if it had reported phosphorus for the same amount of phosphate in the water.

Most reefers on this forum quote phosphate, not phosphorus.

My bad. I use the ULR PO4 It was a mistake to write phosphorous. Your right - you only change the chemical form. My experiences is also that that the reagents Hi-774-25 (ULR phosphate) and Hi-336-25 (ULR phosphorus) are interchangeable and both can be used to measure both PO4 and P on the Hanna Marine Master.

Sincerely Lasse

 

[fnsh1st]

My bad. I use the ULR PO4 It was a mistake to write phosphorous. Your right - you only change the chemical form. My experiences is also that that the reagents Hi-774-25 (ULR phosphate) and Hi-336-25 (ULR phosphorus) are interchangeable and both can be used to measure both PO4 and P on the Hanna Marine Master.

Sincerely Lasse

 

[fnsh1st]

Good info from all, Than You, this all started because of my want to be sure I am measuring accurately as I started dosing Ammonia in an attempt to increase Nitrate from zero and try to understand my tank and Marine Master.
Maybe everyone knows this but I did a Phosphate test using the P (ppm), thinking I was going to run the test again to confirm what PO43- would show me, I immediately went in and changed the chemical form to PO43-, when I returned to the test I had just finished, the P result was there and it now was displayed using the PO43- math. The PO43- reading did not save to the Log. But it showed on the screen.i ran the math on it (multiply by 3.066) and it made sense.