Kern ALS-A / ALJ-A analytical balance
The Kern ALS-A / ALJ-A analytical balance offers top performance for precise weighing in professional environments. Developed for laboratories, research institutions, universities, quality control, pharmacies and the jewellery sector, this model impresses with its excellent readability, durability and ease of use. Compared to similar analytical balances, the ALS-A / ALJ-A stands out for its high user-friendliness and durability - ideal for all specialist areas where reproducible and reliable measurement results are required.
Innovation and precision for demanding applications
The Kern ALS-A / ALJ-A analytical balance combines modern weighing technology and practical design to ensure both comfort and maximum precision. With a particularly fine readability of 0.0001 g and a maximum weighing range of either 160 g or 250 g, it enables detailed and consistent analyses - even with very small quantities of substances.
Special features provide noticeable added value in daily laboratory operations:
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High-quality electrostatic protection prevents weighing errors caused by electrostatic charging of samples (ALJ-A model).
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Automatic calibration (ALJ-A) at the touch of a button using a built-in adjustment weight ensures reproducible precision.
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Simple, intuitive operation thanks to a clearly structured control panel and large, high-contrast display for fast results.
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Compatibility with various weighing units such as grams, milligrams, carats and other units increases flexibility.
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Robust, dirt- and chemical-resistant housing makes it possible to use the device even in more aggressive laboratory environments.
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Non-slip and compact design with efficient footprints enables safe working and easy storage.
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Data transfer via RS-232 interface (depending on model) supports modern laboratory IT systems.
Further technical data:
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Weighing system: Wheel load compensator/monoblock (depending on model)
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Tare function: Yes, across the entire weighing range
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Windshield (for models ? 220 g): Glass windshield with large opening, ideal for comfortable working
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Operation: Mains operation (230/115V, optional rechargeable battery for certain versions)
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Weighing plate dimensions: approx. Ø 90 mm (depending on model)
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Calibration: External/internal at the touch of a button (depending on version)
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Operating environment: Temperature range +10°C to +30°C
Standards and certifications: For safety and quality in the laboratory
The series meets the basic requirements of professional working environments:
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CE conformity: Complies with current European safety and environmental standards.
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ISO 9001-certified production: Ensures consistently high quality and reliability.
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Optional: Calibration certificate according to DAkkS DIN ISO/IEC 17025 (can be ordered depending on configuration).
Certification to these standards ensures safe use even in official research projects or QA processes.
Typical applications for the ALS-A / ALJ-A series
The high precision and robust design open up numerous professional applications:
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Chemical and pharmaceutical laboratories: Precise weighing of reagents, powders, solids and solutions. For example, for the production of standardised potassium permanganate solutions, weighing of silver nitrate or citric acid in synthesis batches.
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Research and teaching: Use in university laboratories for quantitative analysis in practical courses and research work, e.g. for analytical titration.
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Jewellers and precious metal testers: Precise weight determination of gold, platinum, gemstones and other valuable objects.
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Industrial quality control: Monitoring of product samples with regard to weight specifications, e.g. for pharmaceutical intermediates, solder samples or grain size distributions.
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Pharmacies: Preparation of prescribed formulations in compliance with minimal weight tolerances, e.g. in the manufacture of ointment bases or soluble tablet mixtures.
Frequently asked questions (FAQ)
How does the internal calibration of an ALJ-A balance work?
Internal calibration is performed automatically using an integrated calibration weight. The calibration process can be started via the menu or a button. This ensures consistent precision without external weights.
Which weighing units can be selected?
In addition to grams, milligrams, carats and, in some cases, pounds or ounces can also be selected. This is ideal for using the balance for different applications and international standards.
Is the device suitable for contact with aggressive chemicals?
The housing is designed to be chemical-resistant. The balance can be easily cleaned after contact - suitable for laboratory samples with acids or alkalis, for example, as long as the operating instructions are followed.
Can the balance be integrated into the laboratory IT system?
Yes, the RS-232 data interface (depending on the model) allows the balance to be conveniently connected to laboratory software, test equipment management or LIMS.
How is the draft shield designed?
Balances up to 220 g have a generous glass draft shield with a large opening to prevent weighing errors caused by air currents and to allow samples to be inserted easily.
Summary
The ALS-A / ALJ-A series from Kern & Sohn stands for maximum accuracy, uncomplicated operation and maximum flexibility in everyday laboratory, jewellery and quality control work. High chemical and dirt protection, automatic internal calibration (depending on the model) and certification according to international standards are particular strengths of these balances. Their practical design and wide range of applications make them a strong choice for demanding weighing tasks in research, quality control, universities and industry.
