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What is an Osmometer? Features & Benefits Explained
For laboratories seeking precise and reliable measurement of osmolality, an osmometer is an essential instrument. Whether for clinical diagnostics, pharmaceuticals, or food and beverage quality control, understanding the functionality and benefits of this device is crucial when selecting the right model.

What Does an Osmometer Do?
An osmometer is a specialised laboratory instrument used to determine the osmolality of solutions — that is, the concentration of solute particles dissolved in a solvent. This measurement is vital for understanding the physiological properties of solutions, such as freezing point depression, boiling point elevation, and vapour pressure reduction.
Common applications include:
- Clinical Analysis: Measuring blood, serum, urine or plasma osmolality for detecting kidney disorders, dehydration, or poisoning.
- Pharmaceutical Quality Control: Ensuring the consistency of drug formulations.
- Food & Beverage Testing: Verifying concentration levels in products like dairy, juices and alcohol.

Types of Osmometers
Osmometers generally fall into three main categories:
- Freezing Point Osmometers:       
Measure the depression of the freezing point due to solute particles.
- Vapour Pressure Osmometers:       
Determine osmolality based on changes in vapour pressure.
- Membrane Osmometers:       
Often used for large molecules like polymers and proteins.
The Gonotec Osmomat 3000 Series, for instance, utilises freezing point depression — the most common and reliable method in medical and research laboratories.

Key Features of Modern Osmometers
If you’re planning to buy an osmometer, consider these essential features:
1. High Measurement Accuracy
Precision is everything. Devices like the Osmomat 3000 Series from Gonotec boast high reproducibility and accuracy, ensuring trustworthy results for critical applications.
2. Simple Operation
User-friendly interfaces with minimal training required. The Gonotec Osmometers feature intuitive menu navigation, making daily operation smooth and error-free.
3. Sample Volume Efficiency
Modern osmometers need only small sample volumes (as low as 50 µL) — ideal for scarce or precious samples.
4. Automatic Calibration
Built-in automatic calibration functions ensure consistent accuracy and reduce manual errors.
5. Robust Build Quality
Designed for heavy, everyday laboratory use with high-quality components to withstand repeated cycles.
6. Multi-Functionality
Some models can measure different types of samples — aqueous, biological fluids or even industrial solutions — broadening their usability.
7. Data Output and Connectivity
Exporting data via USB or other interfaces allows integration with Laboratory Information Management Systems (LIMS), essential for traceability and record keeping.

Why Choose the Gonotec Osmomat 3000 Series?
The Gonotec Osmomat 3000 Series is a leading choice for laboratories due to its:
- Freezing Point Depression Technology: Accurate and widely validated method.
- User-Friendly Design: Large display, guided calibration, and easy maintenance.
- Compact Footprint: Suitable for labs where space is a premium.
- Low Sample Volume Requirement: As little as 50 µL, reducing waste and preserving rare materials.
- Quick Measurement Times: Essential for high-throughput environments.
It also includes useful accessories like disposable tubes, cleaning agents, and calibration solutions — ensuring long-term, reliable operation.

Considerations Before Buying an Osmometer
1. Application Needs: Are you measuring biological fluids, industrial solutions, or food samples?
2. Sample Throughput: Will you require high-speed processing for large sample numbers?
3. Budget: Balance cost against features — premium models offer automation and data handling.
4. Regulatory Compliance: Ensure the device meets applicable standards like CE or ISO certifications.

Conclusion
An osmometer is a critical tool for any laboratory involved in solution analysis. Choosing a reliable, feature-rich model like the Gonotec Osmomat 3000 Series ensures accurate, efficient and user-friendly operation for a wide range of applications. If you want to enhance your laboratory’s capability with cutting-edge osmolality measurement, investing in a high-quality osmometer is a step in the right direction.

Introduction
Gonotec Osmomat 3000 series of Osmometers from Wolflabs.
The Gonotec Osmomat determines the total osmolality of aqueous solutions. The instrument requires very small sample volumes and can thus be applied for extreme measuring tasks. Its rapidity allows serial measurements in a very short time.

Features and benefits
- Easily controlled via a touch screen
- Step by step user-guidance for all measurement functions
- Automatic, two or three point calibration
- Robust design that makes it easy to handle and maintain
- Built in printer for physical copies and USB or RS232 connections for digital copies

Discounted Osmometers. OFFER ENDS 2012-12-24

Wolflabs Gonotec :: Osmometers - Special Offer OFFER ENDS 2012-12-24

Wolflabs Gonotec :: Osmometers – Increased discount for special offer, models include; 10, 31, 31+31.01, 50, 70, 90, and 35.

Over £2,000 off Gonotec's new freezing point osmometer

32-Offer - Wolf special offer – Osmometer Gonotec Osmomat 3000 for aquaeous samples, freezing point measurement, with manual sample handling, touch screen, comes with free consumables starter kit. Price also includes free IQ/OQ documentation protocol. OFFER ENDS 24-12-2014

Hi Linda,

Yes I’m happy for you to amend the total cost of the PO. I wanted to say that we’re really pleased with the service that we’ve received getting this piece of equipment fixed so thank you very much for all of  you help.

Special offers on our entire range of osmometers shown here http://www.wolflabs.co.uk/laboratory-products/osmometers

Thanks Dave

Price seems very good so as you will have seen I have asked my tech to order one from you.

Always a pleasure doing business with Wolf!

Discounts of almost 40% - http://www.wolflabs.co.uk/laboratory-products/osmometers

New Osmomat 3000-D, Osmomat 3000-M and Osmomat 3000-D-M series osmometers from Gonotec have been added.

Introduction
The Gonotec single sample cryoscopic osmometer is developed in particular for the operator who rather emphasizes on simple handling and precise measurements than on automatic documentation. The Osmomat 3000 basic is the basic version of the osmomat 3000. It determines the total osmomality in aqueous solutions in very small sample volumes and it is suitable for extreme measuring tasks just like the osmomat 3000. With this basic version measurements have to be recorded by the operator, as the unit is neither equipped with a printer nor data output.  

Features and benefits
- The osmomat 3000 basic can be controlled easily and comfortably via a touch screen display
- Step by step user guidance through all measurement functions
- Comfortable calibration routine
- 2 or 3 point calibration
- The tough design of the measuring equipment makes the osmomat 3000 basic easy to handle and to maintain?
- Language options:  German / English

Introduction
The Gonotec single-sample freezing point osmometer is especially designed for routine measurements in the medical field and is also very suitable for measurements in research and industry. The Osmomat 3000 determines the total osmolality of aqueous solutions. The instrument requires very small sample volumes and can thus be applied for extreme measuring tasks. Its rapidity allows serial measurements in a very short time.

Features and benefits
- The Osmomat 3000 can be controlled easily and comfortably via a touch screen display.
- Step by step user guidance through all measurement functions.
- QM assistance for the laboratory supervisor.
- 2 or 3 point calibration.
- The results are sent to the optional built-in printer in document-ready format.
- For data transfer to a PC it can be connected via USB or RS232.
- The last result remains available for reading even after automatic switching to stand-by mode.
- The robust design of the measurement equipment makes the Osmomat 3000 easy to handle and maintain.
- Choice of language.
- Automatic calibration by using Gonotec calibration standards.

Discounts of almost 30% - http://www.wolflabs.co.uk/laboratory-products/osmometers

Introduction
Gonotec Osmomat 070 osmometer from Wolflabs. The Osmomat 070 is suitable for the determination of the average molecular weight (Mn) of polymers which are soluble in different organic solvents and for the determination of the osmolality of aqueous solutions. The instrument can measure the molecular weights in the range from 40 to 50,000 in organic solutions and up to approximately 5000 g/Mol in water.

Features and benefits
- Temperature difference measurement with two thermistors of high resolution
- Display of the temperature difference by means of the Wheatstone-bridge with a resolution of about 5 x 10-5 ºC
- Auto zero adjustment of the measuring system
- Cell is thermostated with a very high temperature constant
- Adjustable cell temperature in steps of 1 ºC between 30 ºC and 130 ºC thermistors are suitable for measuring electrically conducting liquids

Introduction
Gonotec Osmomat 050 from Wolflabs. The Osmomat 050 was especially developed for use in intensive care units. It is designed to be used on a 24 h/day 7 day/week basis and the system is always ready to collect data. The system performs all cleaning and control operations during the stand-by period so that the user can perform a measurement at any time. After performing a measurement, the Osmomat 050 is automatically cleaned so the next measurement can be performed as required.

Features and benefits
- High-performance measuring cell
- Minimum sample volume
- Simple injection of the sample solution (plasma or serum, whole blood not recommended)
- Measuring time < 1 minute
- Automatic zero setting
- User selection of the pressure dimension (mm Hg), (cm water column) or (k-Pascal), respectively
- Display of the first result and storage of a second value serve as a control of the equilibration of the system
- Automatic rinsing of the measuring cell after each measurement
- Simple calibration with hydrostatic pressure differential
- Automatic stand-by function over longer periods of time

Introduction
Gonotec Osmomat 010 osmometer from Wolflabs. The Osmomat 010 is a universal cryoscopic osmometer for the determination of molar masses in benzene solution and of the total osmolality in aqueous solutions. The Osmomat 010 is suitable for measuring freezing points of solvents of aqueous and organic solutions which have a freezing point between +10 and -5°C. The instrument is especially useful for rapid quality control measurements in industrial facilities as well as for research in scientific laboratories.

Features and benefits
- Automatic calibration by switch
- No ice formation in the lower cooling system: reliable measurements even for long working periods
- Measuring time approximately 1 min: valuable in case of serial measurements
- Measurements and determination microprocessor controlled
- Minimum sample volume: 50µL
- Disposable plastic measuring vessels save time and costs
- Automatic error detection and display
- Optional measurement documentation by integrated matrix printer: date, time, sample number and measuring result are printed

Introduction
Gonotec Osmomat 090 osmometer from Wolflabs. The Osmomat 090 enables the measurement of the average molecular weight (Mn) of polymers that are soluble in aqueous or organic solvents within the range of 10,000 to 2,000,000 g/Mol.

Features and benefits
- High-performance measuring cell
- Short response times
- Small sample volumes
- Highest measuring resolution of 0.1 mm liquid column per digit
- Avoids "balloon effects"
- Membrane diameter of 40mm

Discounts of almost 30% - http://www.wolflabs.co.uk/laboratory-products/osmometers

Introduction
Gonotec Osmomat auto osmometer from Wolflabs. The Osmomat auto is a fully automatic freezing point osmometer, which is used for measurement of total osmolality in aqueous solutions. Up to 20 samples per measuring series are automatically analyzed and the results are stored. The Osmomat auto is based on the for decades proven measuring principle of the Osmomat 030. A powerful and efficient measuring system is obtained by means of the system to initiate crystallization with ice crystals and the simple menu-driven operation allows its application in laboratories with a daily large number of samples.

Features and benefits
- Relief of the user by means of the fully automatic measurement of up to 20 samples
- Automatic calibration: no manual adjustment of a potentiometer is required
- No ice formation in the lower cooling system: reliable measurements even for long working periods
- Measuring time approx. 70 secs. per single measurement: important for daily large number of samples
- Automatic measuring: simple operation
- Minimum sample volume: 50 µl standard sample volume
- Disposable plastic measuring vessels: saves time and money
- Air cooling: no water supply needed, electronic wall-socket suffices
- Latest electronic engineering: microprocessor controlled, automatic determination, display and storage of the result
- Clearly arranged front panel with menudriven operation and LCD-display
- Automatic error-detection: display shows clear error messages
- Entering of sample data by means of a barcode reader possible
- Measurement documentation by means of an integrated printer: provides a hard copy of the result with date, time and sample data

Disounts of almost 30% - https://www.wolflabs.co.uk/laboratory-products/osmometers

Introduction
Gonotec Osmomat auto osmometer from Wolflabs. The Osmomat auto is a fully automatic freezing point osmometer, which is used for measurement of total osmolality in aqueous solutions. Up to 20 samples per measuring series are automatically analyzed and the results are stored.

Features and benefits 
- Automatic calibration meaning no manual adjustment of a potentiometer is required.
- No ice formation in the lower cooling system giving reliable measurements even for long working periods.
- Automatic measuring makes for simple operation.
- Disposable plastic measuring vessels which saves time and money.

5 Osmometer Tips in Line with Sustainability

Wolflabs is committed to halve carbon emissions by 2030, and as many other companies look at ways they can be more sustainable, we have five tips on how to run your osmometer more sustainably.

1.    Many osmometers have a cooling fan that requires intake and ventilation ducts. Make sure that the ducts are not obscured and try to ensure that the unit is positioned away from equipment that might cause dust, powders or warm air to be passed through the unit.
2.    Your osmometer manual will recommend a cleaning routine. Making sure that this is part of your user protocol will increase the units longevity.
3.    Most units will also require lubrication periodically. Making sure that this is part of your user protocol will increase the units longevity.
4.    Make sure that you service the unit annually. Wolflabs can provide you with this service or provide you a copy of our service schedule and report template if you want to consider carrying out your own servicing.
5.    Some osmometers are programmed to be energised whilst the unit is powered on – save costs by ensuring the unit is never left on longer than the manufacturer recommends.

Would you like pricing on servicing or a trade-in or re-use value for this type of equipment? If so please Email Us.
Click Here for energy saving tips on other product categories