Putting the reagent in the bottle generates error because it does not go out easily and remains in the bottom of the envelope. The size of the bottle opening does not help and is too small, so some reagent easily is spilled outside of it. Why not just a PILL? In the video you overlook this.
Good day, I recently purchase three units but i notice there is no timer on this equipment as was indicated in the video. My results are incorrect as i have compared it to two calibrated hach DR equipment. How can I calibrate this equipment. Please indicate via a video the calibration
Hi my hl 701 give me the error low light L.lo ... what can I do?? Is there a way to calibrate ? the connection under the battery cover need a cable? thanks
Hi Paolo, you want to make sure that the cover is completely closed and that the Checker® is on a hard flat surface. These are typically the causes of the L.Lo reading. If this doesn't help, let me know and Ill get you in touch with our Tech Support. Thanks!
Hello, I want to know two things, is there any difference between shake the sample before the 60 seconds and when shaked begin the countdown? What method is better and more precise, and by other hand in the user manual appears "shake gently" but in this video you don't shake and in other hanna video they swirl. What method is the better, considering I need the more precise result no matter the time it takes. Thanks!
You want to shake the sample to ensure the reagent is adequately dissolved before beginning the 60 second timer. Gentle shaking or stirring will help prevent the formation of bubbles in the samples, but any form of shaking will still dissolve the reagent.
This video does not make it clear at ALL how this works... To zero an instrument, I would think you would need a sample with well, ZERO chlorine... This videos shows the vial being filled with what looks like tape water. Then you put in a solution that reads 1.93 I assume that is a solution appropriately measured for that particular size vial that would bring the chlorine up to 1.93, but you don't go over how this would relate to testing. I could see a calibration procedure where you would zero it with a sample with zero chlorine although I don't know how I would get one, then poor in the 1.93 mixture and make sure it reads 1.93. The point of this for me, would be for me to see how much chlorine is in my tap water.... Your video does not demonstrate this... Any other info? I tried looking fore a users manuals on your site, but there were just pamphlets with info on all our various testers... I watched another video from another manufacturer. So you add the reagent to the water, and it turns a certain color, and your meter reads the color? How many packets of reagent does it come with? Why is that superior to test strips where I can just look at the color?
Visit the website for Hanna Spain or Hanna Mexico to download the instructional manual for the HI 701 Checker for Free Chlorine.
Brilliant, just updating an SOP for work, much easier than a written manual. Thanks all
Putting the reagent in the bottle generates error because it does not go out easily and remains in the bottom of the envelope. The size of the bottle opening does not help and is too small, so some reagent easily is spilled outside of it. Why not just a PILL? In the video you overlook this.
I tried it for the first time and after the regen was added the water remained clean and did not turn pink like in your video ??
Good day, I recently purchase three units but i notice there is no timer on this equipment as was indicated in the video. My results are incorrect as i have compared it to two calibrated hach DR equipment. How can I calibrate this equipment. Please indicate via a video the calibration
Would this be good for testing hypochlorous acid? What range can this read? Zero to ?? Thanks.
not suitable for HOCL, this meter reads only 0-2.5ppm
Is this instrument durable?
Is it made for intensive use (36 times /day)?
What is this for??
What's is the problem ( LL.o)?
Is there any supplier in india?
അതെ .... ദുബായ് നഗരസഭ സപ്ലൈ ചെയ്യുന്നുണ്ടു..!
I purchased this product
Renjith Kumar Soman evida mashe
Hi my hl 701 give me the error low light L.lo ... what can I do??
Is there a way to calibrate ? the connection under the battery cover need a cable?
thanks
Hi Paolo,
you want to make sure that the cover is completely closed and that the Checker® is on a hard flat surface.
These are typically the causes of the L.Lo reading.
If this doesn't help, let me know and Ill get you in touch with our Tech Support.
Thanks!
y que numero tiene que salir? es q perdi el paper de la instruccion, y el numero q me sale, no se si es el q debe ser??? ayudaaa! porfaaavoor
Hello, I want to know two things, is there any difference between shake the sample before the 60 seconds and when shaked begin the countdown? What method is better and more precise, and by other hand in the user manual appears "shake gently" but in this video you don't shake and in other hanna video they swirl. What method is the better, considering I need the more precise result no matter the time it takes. Thanks!
You want to shake the sample to ensure the reagent is adequately dissolved before beginning the 60 second timer. Gentle shaking or stirring will help prevent the formation of bubbles in the samples, but any form of shaking will still dissolve the reagent.
This video does not make it clear at ALL how this works... To zero an instrument, I would think you would need a sample with well, ZERO chlorine... This videos shows the vial being filled with what looks like tape water. Then you put in a solution that reads 1.93 I assume that is a solution appropriately measured for that particular size vial that would bring the chlorine up to 1.93, but you don't go over how this would relate to testing.
I could see a calibration procedure where you would zero it with a sample with zero chlorine although I don't know how I would get one, then poor in the 1.93 mixture and make sure it reads 1.93.
The point of this for me, would be for me to see how much chlorine is in my tap water.... Your video does not demonstrate this...
Any other info? I tried looking fore a users manuals on your site, but there were just pamphlets with info on all our various testers...
I watched another video from another manufacturer. So you add the reagent to the water, and it turns a certain color, and your meter reads the color?
How many packets of reagent does it come with?
Why is that superior to test strips where I can just look at the color?