Who has used the Finnish K-patents online refractometer? Share your experiences

Our company uses it for measuring sulfuric acid concentration: 1. Overall impression – the sensor is compact; pipeline installation as well as on-site installation are straightforward, making it easy to configure and view the graphs； 2. The measurement of refractive index is highly accurate; it is recommended to purchase standard refractive index solutions for regular calibration, depending on the operating conditions and required precision. 3. All measurement results are based on the refractive index of substances at known concentrations, with the concentration being determined by reversing-engineering from the measured refractive index ； In the same medium, the refractive index changes with temperature; therefore temperature compensation is required, and the sensor needs to be kept warm ； 4. Regularly check the diagrams to confirm whether the lenses are contaminated, and clean them periodically. With proper routine inspections and preventive maintenance in place, the amount of maintenance required is low, and the instruments perform well. EMC is also very good ； The density is also measured using ANTON PAAR’s sound speed and density method.

I’m sorry, we used it for a very short time before it was removed as part of the manufacturing process; the values obtained from testing have no relevance at all for that process.

Is it not allowed? Is the process no longer needed?

Are you stupid, or are your skills in Chinese so poor that your ability to understand words is at the level of a third-grader? :lol

The manufacturer insisted that the lenses were contaminated by the sample; as per their requirements, the lenses they provided were used for cleaning before the instrument was placed in a container containing clean samples, yet the measured values still differed significantly from the analytical values. The manufacturer says the issue with our test sample (online) lies in the measurement site, and it is not a problem with the instrument itself. During the pre-purchase phase, the manufacturer also said that they were recommended by a design institute, and they had thorough discussions with the institute; as a result, they are familiar with all the various parameters and measurement points of the samples to be tested. Hehe~

This post was last edited by 1111111 on 2018-8-18 at 18:58. Er Doggie licks foreign asses; that yellow-mouthed guy is really good at deceiving people. . . This cheap piece of junk costs so much money; just tell me the truth.

What concentration does the K-Patents product be used to measure? Could you please let me know? Thank you. Our factory needs to test the concentrations of cyanohydrin, methionine, concentrated sulfuric acid, and hydrocyanic acid – I was wondering if this is possible

The quality and performance of K-Patents’ instruments are very good, but all instruments have certain limitations in terms of usage. For refractometers, there are mainly two such limitations: 1. Whether they can meet your measurement requirements? A refractometer is primarily used to measure the concentration of soluble substances, as these substances affect the refractive index. If one only wants to measure certain components, or if there are too many interfering components in the medium and those components do not have a fixed proportional relationship with the component that is intended to be measured, then a refractometer may not be suitable for such situations. 2. Prism adhesion. As long as the prism remains clean, the measurements taken by the refractometer itself should remain reliable. There are many factors that can cause adhesion to the prism. Some users claim that our media is very clean and therefore will not cause any adhesion. For example, some media may be very clean yet still form a thin, transparent film on the surface; this is a normal phenomenon, but it can result in inaccurate measurements by the refractometer. In general, it is necessary to communicate more with technical personnel before applying it, in order to understand the potential problems that may arise during actual use; it is advisable to conduct a trial run in cases of uncertainty. The product quality of K-Patents is good, but the prices are high. Those who need refractometers might want to consider the online refractometers of the British brand Critector, which are distributed by Shanghai Yinfei

The quality and performance of K-Patents’ instruments are very good, but all instruments have certain limitations in terms of usage. For refractometers, there are mainly two such limitations: 1. Whether they can meet your measurement requirements? A refractometer is primarily used to measure the concentration of soluble substances, as these substances affect the refractive index. If one only wants to measure certain components, or if there are too many interfering components in the medium and those components do not have a fixed proportional relationship with the component that is intended to be measured, then a refractometer may not be suitable for such situations. 2. Prism adhesion. As long as the prism remains clean, the measurements taken by the refractometer itself should remain reliable. There are many factors that can cause adhesion to the prism. Some users claim that our media is very clean and therefore will not cause any adhesion. For example, some media may be very clean yet still form a thin, transparent film on the surface; this is a normal phenomenon, but it can result in inaccurate measurements by the refractometer. In general, it is necessary to communicate more with technical personnel before applying it, in order to understand the potential problems that may arise during actual use; it is advisable to conduct a trial run in cases of uncertainty. The product quality of K-Patents is good, but the prices are high. Those who need refractometers might want to consider the online refractometers of the British brand Critector, which are distributed by Shanghai Yinfei