Trident np vs Hanna

[painter1982]

My trident np is a week old now. The nitrate test np vs Hanna are close. 8.9np vs 9.7 Hanna. Now the phosphate is not even close. .03 np vs .13 Hanna. I tried calibrating the np. That made it worse. I ended up resetting it. It still reads low compared to Hanna. I did the Hanna 3 times and was within .01 each test. Now the np reads .06 and Hanna is .14. Anyone have experience with the trident and how to overcome this? I was going to calibrate with my tank water but need to get it back under .1 before the np with allow it.

 

[areefer01]

My trident np is a week old now. The nitrate test np vs Hanna are close. 8.9np vs 9.7 Hanna. Now the phosphate is not even close. .03 np vs .13 Hanna. I tried calibrating the np. That made it worse. I ended up resetting it. It still reads low compared to Hanna. I did the Hanna 3 times and was within .01 each test. Now the np reads .06 and Hanna is .14. Anyone have experience with the trident and how to overcome this? I was going to calibrate with my tank water but need to get it back under .1 before the np with allow it.

I am not sure where you got that information. The "calibrated" aquarium water range is:

Nitrate 50 ppm
Phosphate 0 - 1 ppm

As long as you are within those ranges you can manually calibrate. Also note when you calibrate using your tank water and favorite test kits you need to do collect a pint of water from the same area the NP is sampling from. You use this water to run 4 to 5 (up to you which) manual tests for both Nitrate and Phosphate, remove any outliers, then average the remaining results. Those are what you will use to test. Once that is done you take the NP sample line, place it in the remaining water, and finish the calibration. This way both manual and NP are using the same water.

 

[painter1982]

My trident np is a week old now. The nitrate test np vs Hanna are close. 8.9np vs 9.7 Hanna. Now the phosphate is not even close. .03 np vs .13 Hanna. I tried calibrating the np. That made it worse. I ended up resetting it. It still reads low compared to Hanna. I did the Hanna 3 times and was within .01 each test. Now the np reads .06 and Hanna is .14. Anyone have experience with the trident and how to overcome this? I was going to calibrate with my tank water but need to get it back under .1 before the np with allow it.

I am not sure where you got that information. The "calibrated" aquarium water range is:

Nitrate 50 ppm
Phosphate 0 - 1 ppm

As long as you are within those ranges you can manually calibrate. Also note when you calibrate using your tank water and favorite test kits you need to do collect a pint of water from the same area the NP is sampling from. You use this water to run 4 to 5 (up to you which) manual tests for both Nitrate and Phosphate, remove any outliers, then average the remaining results. Those are what you will use to test. Once that is done you take the NP sample line, place it in the remaining water, and finish the calibration. This way both manual and NP are using the same water.

I must’ve read the ppm range wrong from the np. I thought it said .1 max. After taking the 4 to 5 tests and averaging them and using that same sample do I then prime the np sample line with that sample or just do the calibrate option?

 

[areefer01]

I must’ve read the ppm range wrong from the np. I thought it said .1 max. After taking the 4 to 5 tests and averaging them and using that same sample do I then prime the np sample line with that sample or just do the calibrate option?

Fair question. I honestly do not remember. The Calibration task, video, should cover this. You can place the sample line in, prime sample, run your manual tests, then continue with the calibration and should work. But I think Paul also talked about it. I would need to check.

 

[mmorrison55]

I don’t have the np, Jt the regular trident and it lets you input your calibration #’s based on your tank 2ater or calibration sample. Assuming the np does the same, have you tried to test with your Hanna and then use that # as your calibration of the NP? That’s what a lot of people do with the regular trident.

Then the next time your NP does a test, do another with the Hanna and they should be much closer.

 

[painter1982]

Update: went through some trouble shooting with Neptune. Had to download a file to my computer and send it back to them. My problem was from performing a manual test right before and after calibration. You have to set these NP’s on a schedule. Calibrate it 15 to 30 minutes before scheduled test. It calibrates and then no test until next scheduled test. Something about these need approximately 24hrs between tests otherwise they are not accurate. Today my Hanna was .07 and trident .06. I’m very happy with it now. I’ll check it next week and see if it’s still accurate to Hanna checker. Hope this helps anyone experiencing problems with an NP.

 

[areefer01]

Update: went through some trouble shooting with Neptune. Had to download a file to my computer and send it back to them. My problem was from performing a manual test right before and after calibration. You have to set these NP’s on a schedule. Calibrate it 15 to 30 minutes before scheduled test. It calibrates and then no test until next scheduled test. Something about these need approximately 24hrs between tests otherwise they are not accurate. Today my Hanna was .07 and trident .06. I’m very happy with it now. I’ll check it next week and see if it’s still accurate to Hanna checker. Hope this helps anyone experiencing problems with an NP.

In the Trident NP calibration task there is a video with Neptune stating to run the calibration in place of the scheduled test and after 48 - 72 hours of use after reagent change. This is so you don't trigger the "no test in 24 hour" error.

 

[painter1982]

Yes. I saw that. My problem was doing a couple manual tests. They caused it to not calibrate correctly according to the Neptune tech helping me.

 

[GoBirds]

Update: went through some trouble shooting with Neptune. Had to download a file to my computer and send it back to them. My problem was from performing a manual test right before and after calibration. You have to set these NP’s on a schedule. Calibrate it 15 to 30 minutes before scheduled test. It calibrates and then no test until next scheduled test. Something about these need approximately 24hrs between tests otherwise they are not accurate. Today my Hanna was .07 and trident .06. I’m very happy with it now. I’ll check it next week and see if it’s still accurate to Hanna checker. Hope this helps anyone experiencing problems with an NP.

Is it still accurate for you? I have seen plenty of bad reviews. I want it to work and I want to get one, but am debating if its actually worth the money.

 

[painter1982]

Update: went through some trouble shooting with Neptune. Had to download a file to my computer and send it back to them. My problem was from performing a manual test right before and after calibration. You have to set these NP’s on a schedule. Calibrate it 15 to 30 minutes before scheduled test. It calibrates and then no test until next scheduled test. Something about these need approximately 24hrs between tests otherwise they are not accurate. Today my Hanna was .07 and trident .06. I’m very happy with it now. I’ll check it next week and see if it’s still accurate to Hanna checker. Hope this helps anyone experiencing problems with an NP.

Is it still accurate for you? I have seen plenty of bad reviews. I want it to work and I want to get one, but am debating if its actually worth the money.

It went back to not being accurate. I have a support ticket with Neptune again. I had to send them pictures of the reagents and a file. I can’t say I’d buy one if I had to do it over. My other trident works pretty good for Alk, cal, mag. But this np is a point of sale in my opinion.