Beschreibung

KERN compact laboratory balance EWJ 300-3

The KERN EWJ 300-3 compact laboratory balance has been specially developed for precise weighing and is aimed at laboratories and research facilities that require maximum measuring accuracy. Compared to other balances on the market, it offers the advantage of automatic adjustment at regular intervals, which ensures continuous and consistent results. This means that reliable measured values can be achieved with little effort, even with frequently changing locations or temperature fluctuations. Similarly equipped to the[KERN compact laboratory balance EWB 500-3], this balance can be effectively integrated into a wide variety of areas and impresses with its ease of use and long service life.

Versatile features for everyday laboratory work

Thanks to its internal automatic adjustment, which is time-controlled every two hours, this compact laboratory balance minimizes measurement errors and ensures high accuracy throughout the working day. At the same time, there is no need to readjust the device manually. There is also a clear capacity display (bar graph), which allows you to immediately assess the load situation. This means you can always keep an eye on the available weighing and measuring range, which is particularly useful in confined laboratory environments.

Data can be transferred directly to a PC or printer via an integrated USB interface if required. This simplifies the documentation of measurement results and saves valuable time during evaluation. Alternatively, an optional Bluetooth interface is also available, which enables fast and wireless working. The balance is also equipped with a draft shield as standard, whose weighing chamber offers sufficient space for samples with smaller dimensions. For permanently clean handling, the device comes with a protective cover, which also extends the service life of the balance.The essential features include:

– Weighing capacity up to 300 g
– Ultra-fine readability of 0.001 g
– Reading of various units (kg, g, gn, dwt, tl, etc.)
– RS-232 interface as standard, optionally also Bluetooth BTC (v2.0), Bluetooth BLE (v4.0)
– Robust plastic housing with a stainless steel weighing plate

The design and automatic adjustment with internal weight (automatic) make working even easier. Thanks to the short settling time of around 2 seconds, measuring processes can be carried out in quick succession with ease. This is particularly useful in routine laboratories where numerous samples need to be analyzed quickly. In addition, the USP minimum sample weight of 6 g ensures that even sensitive substances can be weighed with sufficient accuracy.

A crucial aspect of the balance design is the draft shield used, which is essential for stable measurements when it comes to minimal differences in the 1 milligram range. Laboratories that regularly weigh substances such as active pharmaceutical ingredients, fine powders or high-quality chemicals such as API (Active Pharmaceutical Ingredients) and fine chemicals in particular benefit from this precise protective measure. Thanks to the carefully crafted plastic housing and the glass top cover, the scales can also be used in sensitive areas without any problems.

Certifications and standards

The KERN precision balance fulfills common industry standards and meets the high quality requirements of professional laboratory environments. Precise compliance with the specifications for pharmaceutical applications (e.g. USP) makes it the ideal choice for many laboratories, whether in research or in cleanrooms.

Concrete application examples

1. Pharmaceutical research: For precise dosing of active ingredients or in the development of new drugs.
2. Food analysis: Determining the exact amount of ingredients in quality assurance experiments.
3. Environmental investigations: Determining the weight of particles or small sample quantities for residue analyses.
4. University laboratories: Regular student experiments where reliability and ease of use are important

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Frequently asked questions (FAQs)

How often does the balance need to be adjusted?

Manual adjustment is not absolutely necessary, as the scale has an internal automatic adjustment function that does this every two hours on a time-controlled basis.

Can I connect the scale to a printer?

Yes, in addition to a USB port, the scale also has an RS-232 interface. Printers can be controlled directly via this to print out measurement data. Extensions via Bluetooth are optionally available.

Is the model suitable for mobile use?

Due to the robust plastic housing and automatic adjustment, the scale can be used anywhere. However, you should ensure that the draft shield is not damaged during transportation.

Which surfaces are required

For optimum results, the balance should be placed on a stable, low-vibration surface. A special laboratory table or an anti-vibration plate are recommended in order to safely perform measurements in the milligram range.

Conclusion

Thanks to its high-precision technology and automatic adjustment function, this compact scale delivers reliable measurement results at all times. The USB interface, the extensive range of settings and the reduced settling times make it a versatile and time-saving partner in the laboratory. Various weighing units and the integrated draft shield also enable a wide range of applications, making the balance ideal for professional use in research, quality assurance and development. Anyone looking for a reliable and lightweight laboratory balance will find a device here that clearly stands out in terms of handling, compatibility and accuracy.