OHAUS analytical balance PR Series Analytical
This high-precision balance for laboratories, industry and educational institutions is designed for reliable and repeatable measurements. Thanks to a minimum readability of 0.1 mg and a stable stainless steel weighing platform, it offers maximum accuracy, even in challenging applications. The integrated RS232 interface enables uncomplicated data transfer and documentation. Compared to similar measuring systems, this solution simplifies day-to-day operations thanks to its user-friendly operation, internal adjustment options (depending on the model) and compact design.
Focus on precision and convenience
The scale is designed for a wide range of tasks and, with its readability of 0.1 mg, enables precise results for simple weighing applications, piece counting or percentage analyses. Particularly noteworthy is the short stabilization time of only around three seconds, which guarantees fast results. Various measurement modes such as grams, milligrams, carats or customer-specific units allow flexible adaptation to different laboratory or production environments.
The construction of the scale includes:
- Robust ABS upper housing and a removable stainless steel weighing plate
- Glass draft shield with sliding doors for clean measurement results even in turbulent environments
- Built-in underfloor hook for density determination
- Safety elements such as adjustment lock and cable protection
In addition, internal calibration procedures (InCal) are available for certain models. The calibration variants (M models) are standardized according to OIML and are therefore suitable for many applications with legal-for-trade specifications. With a net weight of around 4.5 kg, the scales are still handy enough for flexible positioning.
Technical key points (selection)
- Maximum load: 120 g or 220 g (depending on model)
- Readability: 0.1 mg
- Internal adjustment: Semi-automatic (depending on model)
- Connection: RS232
- Stabilization: ~3 s
- Certification (M models): OIML
- Weighing pan size: 90 mm
Due to its compact footprint (approx. 317 x 303 x 201 mm), the balance requires little space on the laboratory bench without users having to do without a sufficiently large weighing platform
The backlit LCD clearly displays measurement results. User-friendliness is enhanced by an intuitive menu structure that allows direct taring, switching of measurement units and adjustment of environmental filters. An optional second display can also be added, offering the greatest possible flexibility in various application scenarios.
Reliable quality and standards
Compliance with important standards is particularly important in regulated industries. The M models in the series are OIML-certified, ensuring standardized and traceable weighing processes. For users who need to ensure seamless quality control, the integrated adjustment function (depending on the model) offers fast calibration directly on site. This ensures that measurement results meet the highest accuracy requirements at all times.
Concrete application possibilities
- Research laboratories: Ideal for the precise determination of active ingredients in chemical or pharmaceutical tests.
- Universities and educational institutions: Ideally suited for practicals, seminar papers and laboratory exercises thanks to its simple operation.
- Quality control in industry: Whether raw materials, semi-finished products or finished products - the scale reliably determines the exact weight of the material.
- Jewelry production or diamond sorting: thanks to the selectable measuring units such as carats, delicate analyses are possible, for example for precious metals or gemstones.
Frequently asked questions (FAQ)
How often should the scale be calibrated?
Regular calibration is recommended, especially for critical applications or frequent relocation. Models with an internal InCal function make this process much easier.
Can it be used to weigh powders or volatile substances safely?
Yes, the draft shield included in the scope of delivery prevents air turbulence. This means that even light powders remain precisely on the weighing pan.
What is the optimum operating environment?
The scale works reliably in a temperature range of 5 °C to 40 °C, whereby 10 to 30 °C and a relative humidity of 80 % should not be exceeded. Condensation should be avoided in order to achieve the best possible measurement results.
Can the scale be connected to a printer?
Data can be sent to suitable external devices via the RS232 interface, such as printers or PCs for documentation purposes.
Conclusion
With its robust construction, user-friendly design and high accuracy, this laboratory balance is an excellent choice for precise measurements in laboratories, industry and education. The fast stabilization time, variable readability and optional internal adjustment support efficient operation. The flexible RS232 interface makes it easy to integrate the device into existing systems. Users therefore benefit from a durable, future-proof solution for demanding weighing applications.
