Meaning, use and related models
MANY MODELS, ONE CERTAIN: OHAUS
What can scales be used for? Each electronic scale has its specific advanced applications that allow you to perform complex operations and minimize errors, saving time and work. In this post you will find the complete list of possible operations thanks to Ohaus scales, their meaning and specific use in laboratories, without forgetting the links to the scales in our shop, with all the information and excellent prices we offer you.
So what is the peak value? totalization and many other functions? Let's find out!
DISPLAY HOLD
This simple function displays the highest stable weight value. It is very useful when the object to be weighed is large enough to cover the scale display. A warning will indicate that the measurement has been carried out and you can move the object to view its weight on the display.
PERCENT WEIGHING
What is Percent Weighing? The scale will show you on the display the percentage of a sample with respect to a pre-established reference weight. For example, in the preparation of food and especially in bakeries, where each ingredient is related to the quantity of main flour, the scale will show you the percentage of the ingredient you are inserting with respect to the total mixture.
This application is also widely used in the pharmaceutical and chemical industries, where it is extremely important to prepare medicines or samples with extreme precision.
SPECIFIC GRAVITY
This mode is perfect for quickly and easily determining the specific gravity of a sample without the need for manual calculations.
Not only can this be critical in material testing, it is also useful for checking the area.
blends for food processing and foodservice applications.
The only Ohaus scale with this function is the Valor 3000 →
CHECKWEIGHING
Compare the weight of a sample against set targets. Choice between: Standard, Nominal Weight or% of Nominal Weight.
Also known as tolerance weighing, it is a key feature in many scales designed for commercial and industrial use to verify package contents and determine if the weight of a particular product meets the required specifications. So, for example, if you sell boxes of strawberries, you need to make sure that all the boxes have the same weight so that people pay the same price for the same amount. The technique involves comparing the weight of the products with predetermined limits set inside the scale.
This feature is used in food, chemical and pharmaceutical environments, including manufacturing and packaging. Some of the specific uses are: control of the filling of the packages; ensure compliance with net content laws for prepackaged products; checking for missing components in a package.
Weight control is extremely beneficial as it saves companies money and helps ensure quality control.
ANIMAL/DYNAMIC WEIGHING
Often used in veterinary medicine and also called "animal weighing", it is the calculation of an unstable, moving weight. The balance determines the average of several weighings made in a given period of time.
Dynamic weighing is also used in many other applications. In mines, in industry, on production belts but, where we are most interested in us, also in laboratories. Some measurements can be made on liquids or on samples with internal chemical reactions in the process, which affect the weight and density of the sample. So even if the material is fixed inside the beaker, the weight fluctuates. Dynamic weighing can accurately measure materials that undergo such changes.
Bench and floor scales with this function are often used in commercial bakeries, food and beverage manufacturing plants, breweries, chemical plants or paint mixing shops.
TOTALIZATION/ACCUMULATION
determination of the total weight of several elements. The accumulated total can be greater than the scale capacity. Totalization is useful when adding the masses of multiple samples without the need for a calculator.
Calculate the total accumulated weight, count or percentage of individual items.
DIFFERENTIAL WEIGHING
Stores the sample weights and, at a second weighing, calculates the difference between the initial and final weight.
A common use in laboratories for this function is the weighing of one or more samples before and after treatment in a drying oven.
It will be possible to memorize different samples, use the balance for different purposes and once the treatment in the oven is complete, resume the saved weights and compare them with the new weight of the samples. Automatically, the scale will show you the difference between the initial and final weight.
Fill Weight Change
The OHAUS EXPLORER series has a dedicated application mode for 'Fill Weight Change'. It helps to calculate statistical information and reduces the risk of error on manual calculations and / or on the predefined target weight. It is also able to publish the criteria in the final report.
Example:
In a weighing laboratory, operators are required to verify that the tablets weigh in the range of 130 mg to 324 mg; the different steps:
- The operator sets the parameters, where the acceptable difference is ± 7.5%.
- Calculate the average weight of 20 units. Once the average weight has been defined, the operator can weigh the single tablet to determine whether it falls within 'Accept' or 'Under and Over', highlighted with a color on the display
- The EXPLORER scales then provide different print data which include: individual weighing data; percentages between average weight and single weight; amount of units Accept / Fail; average weight, Limit%
PEAK HOLD
Captures and stores the highest value in a series of measurements. Both stable and unstable weights are stored.
Available on both floor and analytical scales, it is a versatile feature that is not well known.
Let's take an example immediately: you want to test how much a cardboard box is able to hold a weight. Then you put the box on a floor scale and then you start pressing on the box. The weight is not stable and uniform, but the scale does not measure the average value of your pressure (like dynamic weighing) but shows the highest value recorded on the display. You will press on the box until it breaks and the display will show the maximum weight that the box at right before breaking.
The uses are however very varied and mainly in the industrial field or in the laboratory.
Dynamometer or scale? The answer is quite simple: the shape or weight of the objects to be tested is sometimes not conducive to dynamometers; in addition, scales often have more functionality and can print or send results to computers.
COUNTING
Counting scales are mainly used in factories or assembly lines. They are primarily designed for precise inventory management, particularly when counting large volumes of items with small individual weights, such as bolts or screws. When a group of identical items is placed on the platform of a counting scale, the display shows how many total pieces there are on the platform. The result is a highly accurate count, in seconds, rather than hours of human labor with the near certainty of numerous errors.
PIPETTE CALIBRATION
The primary goal of gravimetric pipette calibration is to ensure that dispensing is performed with the expected accuracy. The calibration process requires the use of equipment such as a beaker, Erlenmeyer flask, pipette filler, thermometer, and scale. Ohaus also provides a pipette adjustment kit which significantly reduces the evaporation rate compared to using an open beaker.
FILLING
Simply, filling will allow you to fill a container very quickly, until a target weight is reached. A bar of different colors on the display will indicate the filling level.
FORMULATION
What if there was a better and more efficient way to create your own compounds or recipes? Yes, there is: the wording. What is that? Also called recipe calculation, the formulation allows the user to store, add and calculate the weights of multiple ingredients. Up to 99 ingredients can be stored in Ohaus scales.
The success of each recipe is its repeatability, which is why it is essential to accurately weigh each ingredient or component. Manual weighings or recipes written in other devices increase the risk of the final product not coming out as expected. It is therefore better to record the recipes directly on the scale, even better if connected to a PC, which will provide you with additional documentation and traceability.
The formulation is useful in a wide variety of industries: pharmaceutical labs, R&D labs, new product development (such as cosmetics and hair dyes), food manufacturing, brewing, paint blending, and even ink blending for silk-screen printing.
DENSITY DETERMINATION
Determines the density of solids denser than water, solids less dense than water, liquids and porous materials.
One of the most popular methods of determining density is the buoyancy technique, which follows the Archimedes principle. The flotation technique can be performed relatively easily using an analytical balance equipped with a special density kit.
For the determination of the density of solids: the most common configuration involves a beaker positioned on the scale with one weighing pan above the beaker and another suspended inside. The beaker is filled with a reference liquid of known density: water, ethanol and sodium chloride solution.
Ohaus supplies laboratory kits for density determination as an accessory. The basic steps are: weighing the sample in air; weighing of the sample in the reference liquid; density calculation based on these measurements.
For the determination of the density of liquids: the beaker holds the sample liquid and a reference body (a glass plate) of known volume is weighed. The basic steps are: weighing the reference body in the air; weighing in the sample liquid; density calculation based on these measurements.
Determinazione della densità in laboratorio:
Determinazione della densità per l'industria:
INGREDIENT COST
Determines the cost of the formula or recipe based on the known costs of the components and ingredients.
SQC
Process monitoring and / or control to eliminate filling errors.
Statistical Quality Control (SQC) is extremely useful during various types of fill operations to avoid errors. The scale has arrangements to accommodate the weight of various packing methods. During operation, the parameters of the packaged product are set in the scale: the weight of the packaging, the acceptable weight limits and the unacceptable weight limits of the product. Easy indicators will be shown on the display to help the operator in filling and also the limits set. All data can then be printed.
Utilizza la funzione "costo ingredienti" e "SQC" con le bilance Explorer →
MOLAR WEIGHING
Molar mass is defined as the mass of 6.02 x 1023 atoms of a given element or compound. Mole weighing allows scientists to determine how many molecules there are in a given sample based on the molar mass of the sample that is placed in the balance.
This function measures the weight of a sample and automatically calculates the result in Mole. Scout scales are equipped with specific software for gravity measurement and Mole weighing modes, designed for classroom science lessons.
ALL OHAUS SERIES, WITH THEIR APPLICATIONS
An advice! Search for the application you need via the "search" function of your browser. On the keyboard press ctrl + F and type the balance function you are looking for (among those listed and explained above); it will be easy for you to understand which scale to consider for your purchase.
For each series, you will find the link to the product in our online catalog.
Defender 6000 industrial scales or even for food use, with IP69K degree, ultra-washable:
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Ranger industrial counting scales. Robust, multi-function, with three displays and large worktop:
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The Adventurer analytical balances. Extremely high precision and complete with the most useful functions and comforts inside the laboratory:
SHIPMENTS
Catapult 1000 →
Weighing
Catapult 5000 →
Weighing, animal / dynamic weighing, display hold, accumulation
INDUSTRY
Ranger 3000 →
Weighing, Piece Counting, Check Weighing, Percent Weighing, Animal / Dynamic Weighing, Display Hold, Accumulation
Ranger Count 3000 →
Weighing, piece counting with automatic optimization, weight control, accumulation
Ranger 4000 →
Weighing, Counting, Check Weighing, Percent Weighing, Animal / Dynamic Weighing, Display Hold, Accumulation
Ranger Count 4000 →
Weighing, Parts Counting with Auto Optimization, Check weighing, Accumulation
Ranger 7000 →
Weighing, Counting with Auto Optimization, Percent Weighing, Advanced Checkweighing, Dynamic / Animal Weighing, Display Hold, Filling, Formulation, Differential Weighing, Density Determination
Defender 2000 →
Weighing, counting, accumulation
Defender 3000 →
Weighing, counting
Defender 3000 i-D33 →
Weighing, weight control, counting, totalization
Defender 5000 →
Weighing, Piece Counting, Percent Weighing, Checkweighing, Dynamic Weighing, Display Hold
Defender 6000 →
Weighing, APW Optimized Counting, Percent Weighing, Check Weighing, Check Counting, Filling, Dynamic Weighing / Display Lock
FLOOR SCALES
VE →
Weighing, piece counting
DF →
Weighing, piece counting, weight control, accumulation, Display Hold
LAB
Pioneer →
Basic Weighing, Piece Counting, Percent Weighing, Dynamic Weighing, Density Determination
PR →
Basic Weighing, Piece Counting, Percent Weighing
Adventurer →
Weighing, Piece Counting, Percent Weighing, Check Weighing, Dynamic / Animal Weighing, Totalization, Formulation, Density Determination, Display Hold
Explorer →
Weighing, Piece Counting, Percent Weighing, Check Weighing, Animal / Dynamic Weighing, Filling, Totalizing, Formulation, Differential Weighing, Density Determination, Peak Hold, Ingredient Costing, Pipette Adjustment, SQC, Fill Weight Change
HUMIDITY ANALYZERS
MB23-MB25-MB27 →
Determination of the percentage humidity, determination of the percentage solid component, weighted
MB90-MB120 →
Determination of the percentage humidity, determination of the recovery of percentage humidity, determination of solids in percentage, weighing
FOOD SCALES
Valor 1000 →
Weighing
Valor 2000 →
Weighing, checkweighing
Valor 3000 →
Weighing, percentage weighing, specific weight
Valor 4000 →
Weighing, percentage weighing, weight control, accumulation
Valor 7000 →
Weighing, percentage weighing, weight control, accumulation
PORTABLE SCALES
Navigator →
Weighing, piece counting, percent weighing, weight control
Compass →
Weighing, Display Hold
TEACHING
Scout →
Weighing, density determination, molar weighing
With over 100 years of experience serving the weighing industry, no company has the knowledge to build quality products like OHAUS.
Known throughout the world, the New Jersey-born company has been producing safe, accurate and reliable scales, analytical instruments and laboratory equipment since Gustav and Karl Ohaus founded the company in 1907.
