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We are pleased to announce that ESSLAB is the UK Exclusive Distributor for all Atago Refractometers, Polarimeters and Accessories.
The Chromatography Catalogue shows over 40 world wide manufacturers covering techniques such as HPLC, GC, GC-MS, LC, ICP, ICP-MS, SPE (sample preparation), flash chromatography and general filtration products.
The General Laboratory Catalogue represents over 60 world wide manufacturers including products such as autoclaves, balances, baths, centrifuges, magnetic stirrers, overhead stirrers, moisture balances, pH meters and much much more....
Click On Here To Enter Our Laboratory Equipment On-Line Catalogue
The name "MASTER" says it all. The MASTER series integrates 66 years of manufacturing expertise into these state-of-the-art instruments. The researchers at ATAGO have addressed the requests of users in 140 countries around the world, and the MASTER series is the embodiment of this extensive research and development. The MASTER series rates 100% in fulfilling both user expectation and illustrating ATAGO's researchers' desire to design the best hand-held refractometer possible
Using a conductivity method of testing, the ATAGO Digital Salt-Meter is used for measuring the level of salinity in a solution of soluble materials.
Winegrowers, Wine cooperatives (sorting grape must), Wineries (purchasing grape must), Buyers for grape must.
Atago Refractometers
and Polarimeters
The RX-5000α ( alpha ) is an automatic digital refractometer which can set measurement temperature internally and has the following features for measuring the refractive index, Brix or concentration of various liquids accurately and speedily
• Since the RX-5000α ( alpha ) has a thermo-module to control temperature, a constant temperature water bath is not necessary.
• The measurement starts automatically after the sample reaches your targeted temperature.
• The refractive index and Brix at your targeted temperature are speedily displayed.
• High Brix ± 0.03% and refractive index ± 0.00004 accuracy can be obtained.
• The RX-5000α ( alpha ) displays the top-and-bottom-limit-bar for your set control range.
• If the measurement value differs from that of your Standard Liquid or the other refractometer, it can be adjusted in a certain range.
• 60 kinds of user scales can be input according to your sample.
• The RX-5000α ( alpha ) is capable of calling up 30 latest measurements.
The Palette series - digital refractometers, are compact battery operated instruments that can display the measured values of samples quickly with one touch of the START switch.
The Palette a (alpha) series can measure Brix values of fruits juice, food and beverage as well as
chemicals and industrial liquids such as cutting oil, cleaning liquid and antifreeze.
Also, these units are programmed with the user-scale feature. This function will allow users to input the coefficient into the formula: [Concentration=Brix x Coefficient ] to display the concentrations according to each type of samples.
In addition, the Palette a (alpha) series is designed and programmed with the new technology "External-Light-Interference" (ELI)* that enables you to take accurate measurements with ease and confidence near at a window or outside.
ATAGO's Polarimeters measure the optical rotation of optically active substances such as saccharide, ascorbic acid, sodium glutamate and others.
Purchase a new RX5000alpha
Digital Automatic Bench Refractometer during the months of September to November and save 20%.
New product for engineering and metal working industries
Purchase a PAL-102S: Cutting Oil Meter, normally - £226.00 during September to November and pay only £186.00 that's £40.00 saving !
PAL-102S is a compact hand-held instrument which has established a reputation from manufacturers for easy operation within industries which are using cutting oils & cleaning fluid for their products' quality control.
For current pricing please click here
PAL-1 :- Brix Range :- 0.0 to 53.0%
The PAL-1 is a completely new and redesigned digital hand-held instrument that will change the traditional conceptions of refractometers. The PAL-1's surprisingly compact size allows you to easily carry it around and use it outdoors or inside factories. With its wide measurement range ( Brix 0.0 to 53.0% ) the PAL-1 works perfectly in measuring almost any fruit juice, food, or drink, such as soup, sauce, ketchup, tomato sauce, low-sugar jam, or marmalade.
The size, design, function and performance will surprise you.
The PAL-1 will expand your range of measuring possibilities.
This new type of Hand-Held refractometer MASTER functions such as Easy-to-Read, Easy-to-Hold, Smooth sampling, Easy disposal of sample from the edge, the improvement of hygiene aspect by employing the new type of grip, and well balanced structure, emphasis is also placed on its design, well exemplified by the streamlined body and the strong grip with rich texture.
- IP65 - Protection class of the MASTER-α, H series are IP65. You can rinse off the sample by running water on the prism. The design allows the user to easily wipe off the sample.
- ATC - The Automatic Temperature Compensation function of the MASTER-α, T, H series enables you to take measurement readings regardless of the ambient temperature.
- Convenient Storage Case Included
- ASD - Automatic Sample Distribution (ASD)
New prism housing design allows for sample to cover the prism without having to lift the day-light plate! This design will allow forfast & easy measurements. - Sample size 2-3 drops.
Refraction
When a straw is placed into a glass of water, the straw appears bent. Now if a straw is placed in a glass with water containing dissolved sugar, the straw should appear even more bent (see illustrations). This phenomenon is known as the principle of light refraction. Refractometers are measuring instruments which put this phenomenon of light refraction to practical use. They are based on the principle that as the density of a substance increases (e.g. when sugar is dissolved in water), its refractive index (how much the straw appears bent) rises proportionately. Refractometers were devised by Dr. Ernst Abbe, a German/Austrian scientist in the early 20th century.
About the Brix ( % ) Scale
The Brix (%) shows the concentration percentage of the soluble solids content in a sample (water solution). The soluble solids content is the total of all the solids dissolved in the water, including sugar, salts, protein, acids, etc., and the measurement reading is the sum total of these. Basically, Brix (%) is calibrated to the number of grams of cane sugar contained in 100g of cane sugar solution. So, when measuring a sugar solution, Brix (%) should perfectly match the actual concentration. With solutions containing other components, especially when one wants to know the exact concentration, a conversion chart is necessary.
Principles of Refractometers
There are two detection systems for refractive index: transparent systems and reflection systems. Hand-held refractometers and Abbe refractometers use transparent systems, while digital refractometers use reflection systems.
Transparent Systems
The detection system for hand-held refractometers (transparent system) is summarized below.
( 1 ) In the figure below the detection is done by utilizing the refractive phenomenon produced on the boundary of the prism and sample. The refractive index of the prism is much larger than that of the sample.
( 2 ) If the sample is thin, the angle of refraction is large (see "a") because of the large difference in refractive index between the prism and the sample.
( 3 ) If the sample is thick, the angle of refraction is small (see "b") because of the small difference in refractive index between the prism and the sample.
Reflection Systems
The detection system for digital refractometers (reflection system) will be discussed below.
In the figure below, Light A, being incident from the lower left of the prism, is not reflected back by the boundary, but exits through the sample. Light B is reflected by the boundary face to the right, directly along the prism boundary. Light C, having an incident angle too large to be let through to the sample side, is totally reflected toward the lower right of the prism.
As a result, a boundary line is produced dividing light and dark fields on either side of the dotted line "B' " in the figure. Since the angle of reflection of this boundary line is proportional to refractive index, the position of the boundary line between light and dark fields is caught by a sensor and converted into refractive index.
Applications of Refractometers
FRUIT
When measuring the sugar concentration of fruit, refractometers have the following benefits: 1 The correct time for harvesting can be determined.
2 Through sorting and grading control, fruit can be made uniform for shipping.
3 For the improvement of product quality and growing conditions, sugar concentration is an important indicator.
FOOD INDUSTRY
By measuring the sugar concentration or soluble solids content (%) of various food products the following benefits can be obtained : 1 Product standardization.
2 Measurements of precise mixture proportions for the flavoring solutions of canned goods, etc.
3 Ideal for maintaining exporting and other international standards.
4 Quality comparisons with standard or competitors' goods can be made easily.
5 Product development and improvement can be made from the data obtained.
OTHER INDUSTRIAL AND RESEARCH FIELDS 1 By controlling the appropriate concentration of cutting oil, corrosion can be prevented and cutting efficiency can be increased.
2 Measurements on animal and plant secretions for improving varieties and for research on growing and cultivation conditions.
BRIX SCALE (SUCROSE)
% Brix RI 0.0 1.3330 5.0 1.3403 10.0 1.3479 15.0 1.3557 20.0 1.3639 25.0 1.3723 30.0 1.3811 35.0 1.3902 40.0 1.3997 45.0 1.4096 50.0 1.4200 55.0 1.4307 60.0 1.4418 65.0 1.4532 70.0 1.4651 75.0 1.4774 80.0 1.4901 85.0 1.5003
The name "MASTER" says it all. The MASTER series integrates 66 years of manufacturing expertise into these state-of-the-art instruments. The researchers at ATAGO have addressed the requests of users in 140 countries around the world, and the MASTER series is the embodiment of this extensive research and development. The MASTER series rates 100% in fulfilling both user expectation and illustrating ATAGO's researchers' desire to design the best hand-held refractometer possible. |
1. Water Resistant
The concept of a washable hand-held analog unit is exceptional. After measuring, you can clean it with running water under a faucet. The new structural-design of these units allows them to be washed whenever necessary. The MASTER Series is the epitome of user friendliness. |
2. Visibility
Efficiently using an analog unit depends on how easily the measured value can be read. With extensive research and the utilization of quality optics, the result is a view of the measurement scale that is very bright, creating a high contrast to see clearly where the boundary intersects the memory lines of the scale. The scale numbers are also large and easy to read. Imitation instruments produced in China cannot compare to the durability, quality or accuracy of ATAGO instruments. Maintaining high standards of quality and attention to detail is the difference which is as clear as the scale of the MASTER units. |
3. Contamination Free
The MASTER Series was also designed with a smooth and easy-to-clean grip, eliminating the possibility of food and other samples being trapped which can result in contamination and bacterial growth. The steel and carbon-fiber design is both functional and stylish. |
4. Automatic Temperature Compensation
The Automatic Temperature Compensation (ATC) system was also reviewed and improved. This new system allows the MASTER series to have improved accuracy that out performs similar units. While developing the MASTER series, there were many discussions, data gathering of countless tests, and repeated setbacks that our development team had to - and did - overcome. Through this process, ATAGO has applied for a patent on the design of the improved ATC system. Ultimately, the MASTER series reads more accurately than any comparable unit in the market. |
5. Endurance
The MASTER Series has passed all water resistance, dust resistance, and drop tests. Instruments were subjected to water jets from four directions, dropped from a height of one meter onto an oak platform, and withstood the pressure changes of air travel. The only replacement part for the MASTER series is the daylight plate and the instruments do not utilize consumable parts or materials, thus keeping the cost for replacement parts to a minimum. |
6. Automatic Sample Distribution (ASD)
People who frequently use refractometers have noticed that the daylight plate can get in the way when placing a sample on the prism. To address this problem, ATAGO has developed a spoon-shaped tip, which makes applying the sample easy, and helps to spread the sample across the prism on its own. This makes the instrument even more user-friendly. (Patent Pending) |
7. Repair and Service
ATAGO has established a close network of customers by providing excellent customer service support. When an ATAGO instrument needs servicing, not only is each customer treated with respect, but they are also provided with detailed methods and user-specific suggestions on sampling and taking measurements, based on individual needs. ATAGO has refined our user-friendly approach not only to improve our instruments, but to also support our valued customers. ATAGO has many excellent Authorized Service Centers worldwide. |
8. Reputation for Quality
| ATAGO has built a firm reputation for reliability and quality during its 66-year history. We are a strong company that exports to over 140 countries with continued growth expectations. We have received ISO certification, and our integrated system for producing and marketing our products, based on the "Plan-Do-Check-Act" cycle, is essential in promoting the ATAGO name. |
We at ATAGO are confident that the MASTER series will surpass your expectations. |