Density Meters

Density Meters
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Density Meters

Product catalog summary
Introduction
A.KRÜSS Optronic is a historic manufacturer of precision measuring devices and analytical instruments, serving industries such as pharmaceuticals, chemicals, petrochemicals, food, and beverages. The company is known for its high-quality products that ensure quality assurance across these sectors.
Importance of Density Measurement
Density measurement is vital for quality assurance in various industries. The document highlights the oscillating U-tube method as the most efficient due to its accuracy, speed, and minimal sample volume requirement.
Density Measurement Methods
  • Areometer: Based on buoyancy, less accurate, requires larger samples.
  • Pycnometer: More accurate but time-consuming and requires skilled personnel.
  • U-Tube Oscillator: Highly accurate, quick, and requires minimal sample volume, ideal for production processes.
Density Meter Sets
A.KRÜSS offers digital density meters, DS7700 and DS7800, featuring U-tube oscillators. These are robust, compact, and suitable for various liquids and emulsions, with options for manual, semi-automatic, and fully automatic sample supply.
Advantages
  • Intuitive touch-screen operation
  • Small sample volume requirement
  • Efficient Peltier temperature control
  • Compliance with GMP/GLP standards
  • Extensive connectivity options for data transfer
Performance Package
The density meters offer flexible data export, complete data recording, and the ability to create unlimited analysis methods. They support multiple languages and provide a comprehensive audit trail for configuration changes.
Specifications and Features
The DS7700 and DS7800 offer high measurement accuracy of ±0.001 g/cm³ and ±0.0001 g/cm³, respectively. They comply with standards such as GMP/GLP, FDA, and ISO, and support various sample supply methods.
Sample Supply Methods
  • Manual: Uses a Luer syringe for sample and cleaning medium supply.
  • Semi-Automatic: Uses a peristaltic pump for enhanced efficiency and safety.
  • Fully Automatic: Utilizes autosamplers for unsupervised measurement of up to 89 samples.
Data Management
The KrüssLab software allows centralized control, remote operation, and data management, even when devices are off.
Maintenance and Calibration
A.KRÜSS provides comprehensive maintenance services, including annual calibration with certified liquids, firmware updates, and guarantee extensions.
Technical Data
The density meters operate within a range of 0–3 g/cm³, with a typical measurement period of 1–3 minutes, requiring a small sample volume of 0.9 ml.
Materials and Components
Components in contact with samples are made from materials like borosilicate glass, PTFE, and TPE, ensuring chemical resistance and durability.
Density Standards and Equipment
The document details DAkkS-certified density standards and equipment for high-precision density measurement, including various density standards and components for automatic sample supply.
Company Information
A.KRÜSS Optronic GmbH is based in Hamburg, Germany, providing contact details for further inquiries.
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Catalog excerpts

Density Meters-1

MEASURING QUALITY. SINCE 1796 DENSITY METERS FAST, RELIABLE MEASUREMENTS USING THE OSCILLATING U-TUBE METHOD

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Density Meters-2

CUTTING-EDGE TECHNOLOGY, MADE IN GERMANY A.KRUSS Optronic is a leading manufacturer of high-precision measuring devices and analytical instruments. The family enterprise founded in 1796 offers an extensive range of products and customised solutions for quality assurance in the pharmaceutical, chemical, petrochemical, food and beverage industry as well as for research and science. Whether it is a refractometer, polarimeter, density meter, gas analyser, flame photometer, melting point meter or microscope - our instruments meet the highest requirements in terms of speed, accuracy and reliability....

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2014 2005 The daughter of Martina Krüss-Leibrock, Karin Leibrock, joins the management ••••••••• A.KRÜSS Optronic is awarded with the “Top 100” seal of approval for especially innovative mid-sized companies 2000 A.KRÜSS Optronic launches a refractometer featuring a fully automatic data acquisition Andres Krüss’daughter, Martina Krüss-Leibrock, is the seventh generation to take over the A.KRÜSS Optronic GmbH. She makes important advances in the internationalisation of the company A.KRÜSS Optronic is the first company in this sector to offer measuring devices and analytical instruments with a touch-screen...

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SUCCESS FACTOR DENSITY MEASUREMENT A comprehensive quality assurance covering the entire pro uction process is a must in any industrial sector. d Density measurements are frequently used for this pur pose, especially in the pharmaceutical, chemical, petro chemical as well as the food and beverage industry. They allow the manufacturer to analyse raw materials, semi-finished and finished products as well as the manu facturing steps in terms of a number of factors. Density can be used to identify substances, to determine their quality or purity and to measure their concentration in binary or quasi-binary...

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Density Meters-5

WITH DENSITY METERS FROM A.KRÜSS

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Density Meters-6

OUR DENSITY METER SETS In close cooperation with industry and science, we have de eloped digital density meters with U-tube oscillators that v best meet the requirements in terms of accuracy, speed, required sample volume and ease of integration into the manufacturing process. They have stood the test for many years in numerous companies for quality control in the laboratory as well as at the production line. Once the measurement has started, the measuring chamber and the sample will be maintained at the right temperature and the display will quickly show the measured values on the selected scales....

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Density Meters-7

SAMPLE SUPPLY DENSITY METER DRYING UNIT PERISTALTIC PUMP TUBE SETS FOR SAMPLE SUPPLY AND DISCHARGE ORDER NUMBERS* For a detailed overview of our density meter sets, please refer to page 14 f.

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A STRONG PERFORMANCE PACKAGE UNLIMITED NUMBER OF METHODS ■■ Create any number of methods and analyse each sample using the desired parameters ■■ Measurement modes: single, continuous or interval measurement ■■ Method parameters such as scales, temperature, sample supply, limit values, comments and many others ■■ Pre-defined scales such as density, relative density, Brix, concentration of alcohol and sulphuric acid ■■ Any number of freely definable scales with conversions based on tables or formulas such as m%, vol%, g/cm³ und many more COMPLETE DATA RECORDING AND BACKUP ■■ Records all measured...

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Density Meters-9

DENSITY METER SOLUTIONS FOR ANY NEED ■■ DS7700 with an measurement accuracy of ±0.001 g/cm³ ■■ Set 1 for manual sample supply ■■ Set 2 for manual s. s., also of aggressive samples ■■ Set 3 for semi-automatic sample supply ■■ Set 4 for fully automatic sample supply ■■ Set 5 for fully automatic s. s., also of aggressive samples COMPLIANCE WITH GLOBAL STANDARDS AND NORMS ■■ GMP/GLP ■■ 21 CFR Part 11 ■■ Pharmacopoeia (USP BP JP Ph. Eur.) , , , ■■ FDA, ISO, HACCP OIML, ASTM, ICUMSA, NIST , FAST, RELIABLE MEASUREMENT ■■ Drying unit with regenerable silica gel for a highprecision adjustment ■■ Efficient...

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MAXIMUM EFFICIENCY THROUGH AUTOMATION TYPES OF SAMPLE SUPPLY MANUAL FULLY AUTOMATIC If work is performed manually, the sample and the medium for cleaning the U-tube oscillator will be supplied with a Luer syringe. While the sample is added, you can check for air bubbles by looking through the inspection glass. A suitable medium is injected for the cleaning until all sample residues have been dissolved and removed. The drying unit will then remove all liquid residues. The semi-automatic process re quires the peristaltic pump DS7070, which will draw the required volume of the sample or the cleaning...

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Density Meters-11

Our KrussLab software allows you to conveniently control all of your A.KRUSS devices on a PC. The KrussLab can be easily installed via Windows Explorer. Your devices are connected to your local network via Ethernet or directly to your computer and identified via its IP address. The user-friendly interface that you already know from your A.KRUSS devices will then appear on the PC monitor. The KrussLab allows you the following: ■ Central user management; the user rights can be transferred to the individual devices ■ Remote control of any number of devices ■ Measured data can be saved in a database...

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OUR EXTENSIVE RANGE OF SERVICES YOUR BENEFITS AS AN A.KRÜSS CUSTOMER ■■ ■■ ■■ ■■ ■■ ■■ ■■ IQ/OQ/PQ by A.KRÜSS Optronic or certified service partners Service, maintenance, calibration and adjustment on site Calibration and adjustment with certified calibration liquids Training and application consulting on site Spare parts and accessories directly from the manufacturer Customer-specific customisation of devices Efficient support thanks to a fast confirmability of the customer’s situation based on extensive reports MAINTENANCE OF OUR DENSITY METERS Our maintenance contracts include the following...

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■ Measurement based on U-tube oscillation ■ Easy operation thanks to self-explanatory, well-arranged user interface and touch-screen display ■ User administration that can be activated or deactivated depending on the requirements, with optional password protection and different user rights ■ Easy, menu-driven adjustment ■ Any number of measurement methods for monitoring the measurement process according to method, batch, product and/or production line incl. limit value monitoring ■ Measurement modes: single, continuous or interval measurement ■ Measurement procedures: measurement with manual...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.