Choosing the Right Laboratory Balance: Precision, Analytical, and Semi-Micro Explained

Laboratory balances are critical tools in scientific research, quality control, and industrial applications. But with so many types—precision balances, analytical balances, and semi-micro balances—it can be hard to know which one suits your specific needs.

Common Questions About Laboratory Balances

Choosing the right laboratory balance can be confusing, especially with so many options available. Buyers frequently ask questions such as:

• What is a precision balance used for in laboratories?

• What’s the best semi-micro balance for pharmaceutical labs?

• What is the difference between accuracy and readability in lab balances?

• How do you choose the right balance capacity for your lab?

• How do you use an analytical balance for chemical analysis?

If you’re asking similar questions, you’re not alone. This guide is here to help you understand each balance type and how to select the one that fits your specific needs.

This guide walks you through the differences, use cases, and buying considerations.

What Is a Laboratory Balance?

A laboratory balance is an instrument used to measure the mass of substances with high accuracy. Unlike regular scales, lab balances are designed to detect minute weight differences, often to the nearest milligram or even microgram.

Types of Laboratory Balances: Key Differences and Use Cases

Precision Balance: Ideal for General Laboratory Weighing

• Readability range: 1 mg to 0.1 g
• Capacity: Up to several kilograms
• Use cases: General lab work, chemical preparation, and educational settings

A precision balance provides accurate results for routine measurements. While not as sensitive as analytical or semi-micro models, it offers ease of use and faster stabilization times.

Analytical Balance: Essential for Accurate Quantification

• Readability range: 0.1 mg to 0.01 mg
• Capacity: Typically up to 200–300 g
• Use cases: Quantitative analysis, formulation, quality control

Analytical balances are housed in draft shields to protect against air currents and vibrations. They're indispensable when accuracy down to 0.1 mg is required.

Semi-Micro Balance: Ultra-High Precision for Sensitive Tasks

• Readability range: 0.01 mg
• Capacity: Around 100–200 g
• Use cases: Pharmaceutical R&D, microchemical analysis, environmental testing

A semi-micro balance bridges the gap between analytical and micro balances. It offers extremely high resolution, suitable for labs needing ultra-fine measurements without investing in a full microbalance.

Key Considerations When Choosing a Lab Balance

Accuracy vs. Readability: What’s the Difference?

• Accuracy: How close the measurement is to the true value.
• Readability: The smallest increment a balance can display.

A balance can be readable to 0.01 mg but still be off if it’s not properly calibrated or suited to your environment.

Capacity: Don’t Overload Your Balance

Always choose a balance with a capacity at least 20–30% higher than your typical sample weight. This prevents strain and ensures long-term accuracy.

Environmental Factors Matter

• Keep balances away from vibrations, drafts, and temperature fluctuations.
• Use anti-vibration tables and draft shields for semi-micro and analytical balances.

Maintenance and Calibration of Laboratory Balances

How Often Should a Lab Balance Be Calibrated?

• Internal calibration: Adjusts automatically.
• External calibration: Should be done daily or weekly, based on use and regulations.

Tips for Prolonging Balance Lifespan

• Handle with care and avoid sudden loads.
• Clean weighing pans regularly.
• Keep calibration weights nearby but protected.

Top Brands for Laboratory Balances

• Ohaus
  
• Adam Equipment
• Kern

Each offers a range of balances tailored to different scientific and industrial needs.

Final Thoughts: Which Laboratory Balance Should You Choose?

Choosing the right balance depends on your specific application:

FAQs About Laboratory Balances

What is the difference between analytical and semi-micro balances?

Analytical balances offer 0.1 mg readability, while semi-micro balances go further to 0.01 mg—ideal for trace-level measurements.

Can I use a precision balance for pharmaceutical work?

For preliminary tasks, yes—but for formulation and regulatory compliance, an analytical or semi-micro balance is recommended.

Knowing how to check a fuse in a UK plug is a quick, useful skill that can save you time, money, and stress. It’s also a great first step in troubleshooting common household electrical issues.

Pressure gauges are mechanics used widely across manufacturing, chemical processing, HVAC, and water treatment corporations. Their purpose is to provide a pressure-sensitive reading of a gas or liquid in an industrial setting. Pressure gauges play a significant operational role as many industrial systems rely on the precision of their readings.

Without pressure gauges, fluid powered machines would face unpredictable failures. By implementing one into your machinery, you can monitor pressure around the clock, with any cause for concern flagged immediately, avoiding dangerous or costly errors.

This blog will discuss the workings of a pressure gauge and the importance of their role in an industrial setting, namely their functionality and safety.

How does a pressure gauge measure pressure?

Inside a pressure gauge is a pressure-sensitive mechanism that’s measured internally with the results displayed via a dial or digital readout. The pressure sensitivity is measured as the mechanism deforms under the pressure of the gas or liquid, this is then converted into a reading through measurement, to be displayed to the user. The concept of a pressure gauge is built upon the principle of Hooke’s Law, which states that the amount of force applied to a spring is equal to the returned force of resistance the spring gives back, i.e. if you pull on a spring, it will pull back with equal force.

When considering this law with a pressure gauge in mind, a pressure gauge is measuring the pressure of said media (a liquid or gas), when the pressure fluctuates, the mechanism changes and the change in pressure can be read on the dial or digital readout of the pressure gauge.

This principle applies to all pressure gauges, the full range can be explored at the GNWShop.

How do mechanical and digital pressure gauges differ in functionality?

Mechanical pressure gauges are often referred to as analogue gauges. The function of this type of pressure gauge is based around the mechanical movement of a bourdon tube, or in some designs a diaphragm seal, which in turn drives a needle around a dial. A digital pressure gauge differs by using a diaphragm and strain gauge as opposed to a bourdon tube or diaphragm seal. The digital displays allow the pressure gauge to display and record readings with more ease.

Whilst mechanical pressure gauges can be more affordable compared to digital gauges, and don’t rely on a power supply, digital pressure gauges remain calibrated for far longer, the importance of which can be read about here. They also perform well in areas of extreme vibration, pulsation, and corrosion and display a clear reading, with some models having the option of a backlight.

What role does pressure play in efficiency and safety?

Pressure gauges are implemented in industrial settings to act as a constant monitor to pressure sensitive systems. By having constant access to precise pressure readings, the role of the pressure gauge works to prevent hazardous conditions. By recording any changes in pressure, problems can be dealt with rapidly to avoid any potential issues before they escalate. Further to this, pressure gauges are incredibly user friendly mechanisms, meaning room for error is near to non-existent, allowing for universally readable results.

Not only do pressure gauges play an important role in maintaining a safe industrial setting, but one that works efficiently too. The monitoring of pressure levels means that systems can operate at their optimum, this serves organisations as they’re able to keep any energy wastage to a minimum and regulate performance standards, keeping them maintainable. More about the importance of keeping a safe measure on pressure systems and the role calibration plays can be found here.

How does the type of pressure gauge impact its function and application?

A library of pressure gauges exists due to the variation in requirements from different industries. An example of the comparison between mechanical and digital pressure gauges mentioned earlier in the blog is that digital gauges often provide higher accuracy and work best in a lab setting, however mechanical gauges are sufficient for general industrial use. It’s important to consider the environment your pressure gauge is going to be operating in, as well as the media pressure being measured.

Each pressure gauge is designed with a specific pressure range in mind, for example bourdon tube gauges are suitable for medium to high pressure, whilst diaphragm gauges are ideal for low pressure applications. To ensure you’re getting the most accurate reading and your pressure gauge is running at the highest efficiency, it’s crucial that you select the right gauge for the level of pressure being measured.

When it comes to application, there are specific features to bear in mind. For industries that require a sanitary environment, diaphragm seal pressure gauges are ideal for systems dealing with food, pharmaceuticals, or chemicals. For more hazardous environments, intrinsically safe digital gauges are the best approach. At GNW, we supply a wide range of pressure gauges with a team of experts to advise you on the most suitable mechanism for your pressure monitoring systems. For guidance regarding the different types of pressure gauges, read our blog that breaks down everything you need to know.

The Right Pressure Gauge For You

You should now have a rough understanding of the important role a pressure gauge plays in pressure monitoring systems, and how this can transform your mechanical operations. It’s vital that you choose the right gauge to work most efficiently across your systems, at GNW our technicians are on hand to answer any questions you might have in your search for your next pressure gauge. For any questions you have, get in touch with our team here.

If you’re ready to take the next step and implement a pressure gauge to transform your operations, browse our full range online now.

With the huge amount of options available to you when purchasing a multimeter, buying can turn into a daunting task. So we have put together a quick buying guide to help you with your choices. If you require any more information or would like some recommendations, contact us and we will be able to help!

1. Purpose: The first step in buying a multimeter is to determine your intended use. Are you a professional electrician or an engineer who needs a high-precision multimeter for precise measurements? Or are you a DIY enthusiast who needs a simple and affordable multimeter for basic electrical tasks? Identifying your purpose will help you determine which features are most important for your needs.

2. Digital or Analog: Multimeters are available in two types, digital and analog. Digital multimeters (DMM) are the most common type and provide more precise and accurate readings. Analog multimeters (AMM) use a needle to display the measurement and are preferred by some professionals because they offer a more intuitive display.

3. Accuracy: The accuracy of a multimeter is a crucial factor to consider when buying. Look for multimeters with high accuracy ratings, especially if you require precise measurements. The accuracy rating of a multimeter is usually expressed as a percentage of the reading plus a number of digits, such as ±0.5%+2.

4. Range: Multimeters have a measurement range, which is the maximum and minimum value that the tool can measure. Ensure that the multimeter you choose has a range that is suitable for your needs. If you're an electrician, you may need a multimeter with a high range to measure high voltages.

5. Display: The display of a multimeter should be clear and easy to read. Choose a multimeter with a backlit display, especially if you work in low-light conditions. Some multimeters also have a large display screen, which can be helpful when taking measurements from a distance.

6. Safety: Safety features are essential when working with electrical equipment. Look for multimeters with overload protection and auto-ranging functions to prevent accidental damage to the multimeter or injury to the user.

7. Brand: Choosing a reputable brand can help ensure that you're getting a high-quality and reliable multimeter. Brands such as Fluke, Chauvin Arnoux, and Kaiweets are known for their quality and accuracy.

8. Price: Finally, consider your budget when buying a multimeter. Multimeters vary in price depending on the features and brand. Determine which features are essential for your needs and choose a multimeter that fits your budget.

By following these guidelines, you can choose the best multimeter for every situation and provide accurate and reliable measurements for years to come.

Glycerine-filled pressure gauges are a popular choice for a wide range of applications due to their ability to dampen the effects of pulsation and vibration. In this post, we'll take a closer look at glycerine-filled pressure gauges and their advantages.

What are glycerine-filled pressure gauges? Glycerine-filled pressure gauges are pressure gauges that have their internal cavities filled with glycerine, a clear, odorless, and non-toxic liquid. The glycerine acts as a dampening fluid, reducing the effects of pulsation and vibration on the gauge pointer. This helps to extend the lifespan of the gauge and provides more accurate readings over time.

Advantages of glycerine-filled pressure gauges There are several advantages to using glycerine-filled pressure gauges:

1. Vibration and pulsation dampening: As mentioned earlier, the glycerine-filled cavity helps to reduce the effects of vibration and pulsation on the gauge pointer, leading to more accurate readings and longer lifespan of the gauge.

2. Corrosion protection: Glycerine has anti-corrosive properties, which means that it can help to protect the internal components of the gauge from corrosion caused by exposure to harsh or corrosive substances.

3. Improved readability: The dampening effect of glycerine helps to prevent the gauge pointer from oscillating wildly, making it easier to read and interpret the pressure readings.

4. Versatility: Glycerine-filled pressure gauges are suitable for a wide range of applications, including industrial, commercial, and residential settings.

5. Durability: Glycerine-filled pressure gauges are designed to withstand harsh environmental conditions, making them ideal for use in rugged environments.

Conclusion Glycerine-filled pressure gauges offer several advantages over traditional pressure gauges, including improved accuracy, durability, and corrosion resistance. If you're looking for a reliable pressure gauge that can provide accurate readings even in harsh environments, consider investing in a glycerine-filled pressure gauge.

Click here to view our range of glycerine-filled pressure gauges.

Weighing Indicators: The Key to Accurate Load Cell Measurements

When it comes to measuring weight, load cells are a reliable and accurate tool. But without the proper weighing indicator, load cells can be limited in their ability to provide precise measurements. Weighing indicators are essential components in any weighing system, as they allow for real-time measurements and data analysis. In this post, we'll explore the importance of weighing indicators, their features, and what to look for when choosing the right one.

What are Weighing Indicators?

Weighing indicators are electronic devices that display weight measurements from load cells. They provide the user with real-time measurements of the weight of an object or material being weighed. The weighing indicator is connected to the load cells and is responsible for processing the weight data and displaying it in a readable format. Weighing indicators are used in a variety of industries, including agriculture, food processing, and manufacturing.

Features of Weighing Indicators

Weighing indicators come with a range of features and capabilities that make them essential in the weighing process. Some of the key features of weighing indicators include:

1. Display: The display on a weighing indicator is crucial, as it shows the weight measurements in real-time. Most indicators have an LED or LCD display that is easy to read and can be customized to show weight measurements in different units of measurement.

2. Calibration: Weighing indicators need to be calibrated to ensure accurate measurements. Many indicators have built-in calibration functions that allow for easy calibration without the need for additional equipment.

3. Data Storage: Some weighing indicators have built-in memory that allows for data storage. This feature is useful for tracking weight measurements over time and analysing trends.

4. Connectivity: Weighing indicators can be connected to other devices, such as computers, printers, and data loggers. This allows for the data to be analysed and processed in real-time, as well as printed for record-keeping.

Choosing the Right Weighing Indicator

When choosing a weighing indicator, there are several factors to consider. These include:

1. Accuracy: The weighing indicator needs to be accurate to provide precise weight measurements. Look for indicators with high accuracy ratings.

2. Capacity: The capacity of the weighing indicator should match the load cells being used. Make sure to choose an indicator with a capacity that is appropriate for the load cells.

3. Display: The display should be easy to read and customizable. Look for indicators with backlit displays that are easy to read in low light conditions.

4. Connectivity: Consider the connectivity options of the weighing indicator. If you need to connect the indicator to other devices, make sure it has the necessary ports or wireless connectivity options.

In Conclusion

Weighing indicators are essential components of any weighing system. They allow for real-time measurements, data analysis, and connectivity with other devices. When choosing a weighing indicator, consider factors such as accuracy, capacity, display, and connectivity options. By choosing the right weighing indicator, you can ensure accurate and reliable weight measurements for your business.

If you are in the food industry, then you know that weighing ingredients is an important part of the process. In fact, it is so important that many businesses use industrial food scales to ensure accuracy. But what are industrial food scales, and why do you need one? Keep reading to find out!

Industrial food scales are designed to weigh large quantities of food. They are often used in commercial kitchens or bakeries, as they can accommodate larger bowls and containers. Many industrial food scales also have a tare function, which allows you to subtract the weight of a container from the total weight. This is especially useful when you are measuring ingredients by weight.

Accuracy is crucial when it comes to baking and cooking. This is why industrial food scales are so important. They can help you measure ingredients more accurately, which will result in better-tasting food. If you have ever had a recipe turn out badly because of incorrect measurements, then you know how frustrating it can be. They are also vital in ensuring that commercial recipes are followed correctly therefore keeping nutritional values as close to stated as possible.

When it comes to industrial food scales, there are a few things you should keep in mind. First, they should be durable and able to stand up to heavy use. Second, they should be accurate. And third, they should be easy to clean. Here are a few of the best industrial food scales on the market:

The Kern FFN is one of the most popular industrial food scales on the market. It is known for its durability and accuracy. This scale can handle up to 25kg whist still maintaining a small footprint, making it perfect for commercial kitchens. It also features an LCD display that makes it easy to read measurements.

If you are looking for an accurate and durable industrial food scale, then the Adam Equipment Astro range are a great option. They can weigh up to 8kg with a readability of 1g and feature a rugged, stainless steel case.

If you need an industrial food scale for heavier weights or larger items then the Adam Equipment Gladiator platform scales are a good choice. This scale is available in capacities from 6 kg to 300 kg, are EU verified [M class] and are IP67 rated for use in the most demanding production environments.

No matter what your needs are, there is an industrial food scale that will meet them. Choose one that is durable, accurate, and easy to clean so you can keep your commercial kitchen running smoothly. GNW can supply scales from all manufacturers including Kern, Ohaus and Adam Equipment. We can also repair and calibrate all makes and models.