Refractometer – Rudolph’s Digital J57-VT HA – High Accuracy & J57-VT WR Wide Range.
The J57-VT High Accuracy Refractometer and J57-VT Wide Range Refractometer are part of the Rudolph Research Product Line. The Rudolph J57-VT High Accuracy and J57 Wide Range refractometers are designed to meet the unique needs of teste da qualidade do alimento where the automatic refractometer is viewed as a quality control (QC) tool rather than a laboratory instrument. A single flat measurement surface, automatic electronic temperature control, and one button measurement capability make it perfect for heavy use food industry applications. In the food industry, fast, automatic, and accurate Brix readings are required.
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Capabilities to meet your Application – Two Models J57-VT High Accuracy & J57-VT Wide Range
- Where High Accuracy is critical the J57-VT HA Model Refractometer offers Accuracy of ±0.00002 RI and Brix Accuracy of ±0.01 with an RI Measurement range of 1.32-1.53 and Brix measurement range of 0-100. The capabilities of J57-VT HA are designed to meet the application requirements of the Food and Beverage Industry.
- Where Measurement Range is most importance the J57_VT WR Model Refractometer offers an RI Measurement range of 1.3-1.7 and Brix measurement range of 0-100 with Accuracy of ±0.0001 RI and Brix Accuracy of ±0.1. The Rudolph J57-VT WR is an excellent fit for Chemical Industry Laboratories where applications often require a wider RI measurement range.
Sistema de medição automático
Rudolph J57-VT High Accuracy refractometer features a fully automatic measuring system. The operator simply places the sample on the prism, presses a button and the results are displayed on 7.5cm x 10cm back lit LCD. There are no shadow lines to match and there is no eyepiece requiring operator determination or manual adjustment.
High Accuracy Refractometer With Electronic Temperature Control
As leituras do Brix são muito sensíveis às mudanças da temperatura quando as amostras da indústria de alimento tendem a chegar no refratômetro muito quente ou muito frio. Variações relacionadas com a temperatura nas leituras do Brix podem ser minimizadas usando o ICUMSA correção de temperatura para sacarose, mas apenas minimizada, não eliminada. O ICUMSA Temperature Correction Table was developed for a sucrose and water solution and the further from pure sucrose and water the sample is, the more inaccurate Temperature Correction becomes.
Temperature Correction also requires that the sample temperature remains stable during the measurement. So a room temperature sugar solution measurement works reasonably well, but if a sauce sample or syrup comes from a kettle or a refrigerator, temperature correction will be almost useless. The solution to measuring hot samples has always been to control the sample temperature with a circulating water bath and then clean and maintain the water bath. This is still not ideal as bringing samples to temperature with a water bath is slow and maintaining a water bath is time consuming. The J57-VT refractometers addresses this issue with a built in, maintenance free, electronic temperature control which provides the best solution for these real world problems: absolute accuracy regardless of sample type and excellent thermo-stability no matter what the sample or environmental temperatures are. Standard configuration includes sample Temperature Control from 10ºC to 65ºC.
Exatidão elevada
The J57-VT HA was designed for the food industry with a BRIX range of 0 – 100% and a Refractive Index range of 1.33 – 1.53 RI. The J57-VT HA has a ±0.01 BRIX and ±0.00002 Refractive Index (RI) accuracy, which matches the accuracy of Rudolph’s best refractometers. Combined with absolute temperature control the J57-VT HA delivers high accuracy and consistent readings, perfectly designed for rigorous Food Industry applications.
Fácil limpar a superfície da medida
Regardless of the specified instrument accuracy the real world performance will always depend on how well the instrument is cleaned between samples. The J57-VT refractometers address this issue by providing a very flat easy to clean measurement surface with no corners or crevices that tend to trap sugars, syrups, and other food industry samples.
Prisma de safira de alta durabilidade
Quando um refratômetro automático tradicional é usado em um aplicativo de alta taxa de transferência, a substituição de prisma se torna uma tarefa regular. Isto é porque o abade tradicional refratômetros tem os prismas de vidro que são muito mais macios do que o prisma da safira do refratômetros áspero da série de J e assim mais prone a riscar e o desgaste geral e o rasgo que podem conduzir às Leituras imprecisas potencial desconhecido para o operador.
Menor custo de uso sobre abade refratômetros
Traditional industry has used an ABBE refractometer either with or without a water bath. The cost of replacing the water bath and the Abbe dual glass prism over time makes the cost of owning a Rudolph Research J57-VT with its single sapphire prism and electronic temperature control, actually less than the cost of an Abbe over their comparable useful lives. The speed and accuracy of readings also increases productivity and reduces costly mistakes that can be potentially caused by inaccurate readings.
Calibração
The J57-VT Automatic Refractometer offers 1 or 2 point calibration. The instrument stores the date and the time of the last calibration in line with ISO e padrões similares. Independentemente de quantas vezes o refratômetro é calibrado pode sempre ser restaurado para a calibração de fábrica padrão.
Configurável pelo usuário
Os instrumentos de laboratório versáteis têm vantagens quando as aplicações mudam entretanto esta versatilidade pode igualmente conduzir à confusão durante o uso regular da produção com teclas extra e forçando operadores a interpretar os resultados extra que não têm nenhuma relevância. O display digital personalizável da série J permite que o instrumento seja configurado exatamente para o que é necessário para cada aplicativo. O teclado personalizável pode ser "bloqueado" ou apenas algumas teclas podem ser operável, fazendo para uma curva de aprendizado ainda mais rápido do usuário. A função de bloqueio, calibração e outras funções são protegidos por senha.
Touchscreen e LCD digital
All functions of the J57-VT Automatic Refractometers are activated through a large 4.3″ 480dpi, digital, color TFT LCD touch screen. The 70mm X 75mm measure button on the J57-VT is designed to allow an operator wearing gloves to activate measurement with an elbow or side of a hand. The sealed touchscreen is resistant to fingernails, sharp objects, chemicals and acids.
Proteção por senha
A combination of password protection and being able to lock out specific “keys” enables control over which users can access certain functions. This means that the J57-VT can be set up as a one-button instrument for factory environments.
Impressora e saída de computador
In today’s highly regulated environment many users find hard copy or computer record keeping essential. The J57-VT comes complete with an RS232 port and a forward facing USB port.
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Todos os instrumentos Rudolph carregam nosso exclusivo compromisso de 20 para servir seu instrumento.
Rudolph Research analítica oferece uma ampla gama de manutenção preventiva e programas de serviço. Rudolph demonstrou um compromisso com seus clientes, mantendo os instrumentos instalados operacionais, não só por 20 anos, mas em alguns casos por mais de 40 anos. Este compromisso de longo prazo para manter os nossos instrumentos em execução faz o custo de propriedade, ao longo da vida de um instrumento Rudolph, um dos mais baixos no segmento de mercado de laboratório. Na data em que este documento foi publicado, não há nenhum outro fabricante de instrumentos de laboratório que garanta serviço e suporte técnico por 20 anos. Ver toda a garantia de 20 serviços.
