Sartorius Entris II BCA324I-1S Advanced Analytical Balance
Shipping
All products ship from our 30,000 sq. ft. Haverhill, MA warehouse
Shipping
All products ship from our 30,000 sq. ft. Haverhill, MA warehouse
The Sartorius Entris II BCA324I-1S Advanced Analytical Balance combines an unusually generous 320 g weighing capacity with 0.1 mg readability, providing laboratories with conventional analytical resolution and substantially more working capacity than typical 120 g or 220 g analytical balances.
Available brand new from American Instrument Exchange, the BCA324I-1S belongs to the Sartorius Entris II Advanced Line and incorporates isoCAL automatic internal adjustment, a manual analytical draft shield, Real-Time Level Support, CalAudit Trail, integrated protection systems, an LED screen with touch technology, user-management features, electronic connectivity, and built-in laboratory weighing applications.
The 320 g capacity is particularly valuable for laboratories that need 0.1 mg analytical resolution while working with heavier tare vessels, larger containers, or samples that would approach or exceed the capacity of conventional analytical balances.
This balance is supplied new and includes the applicable Sartorius manufacturer warranty.
320 g maximum weighing capacity
0.1 mg readability
Typical repeatability of 0.08 mg at approximately 5% load
Typical repeatability of 0.1 mg near maximum load
Linearity limit of ±0.3 mg
Typical linearity of approximately ±0.06 mg
Typical stabilization time of ≤1.5 seconds
isoCAL automatic internal adjustment
Manual analytical draft shield
90 mm diameter weighing pan
Real-Time Level Support
CalAudit Trail
Integrated protection systems
LED screen with touch technology
User-management and password-protection capabilities
Built-in laboratory weighing applications
RS232 and USB-C connectivity
Underfloor weighing capability
Recommended external calibration weight: 200 g, E2
Brand new from American Instrument Exchange
Sartorius manufacturer warranty included
The Sartorius Entris II BCA324I-1S is a high-capacity analytical balance designed for laboratories that need 0.1 mg resolution without the capacity restrictions associated with many conventional analytical balances.
A typical analytical balance may provide approximately 120 g or 220 g maximum capacity.
The BCA324I-1S increases that capacity to 320 g while maintaining 0.1 mg readability.
That additional working range can be particularly useful because balance capacity must accommodate the combined weight of both the sample and its tare vessel.
Larger glassware, crucibles, bottles, containers, and other vessels can consume a significant portion of a lower-capacity balance's available range before the sample is added.
The BCA324I-1S provides considerably more room for those applications while retaining true analytical-level resolution.
The Sartorius BCA324I-1S is well suited for quantitative chemical analysis, pharmaceutical sample preparation, formulation, standards preparation, reagent weighing, gravimetric analysis, quality control, density determination, percentage weighing, differential weighing, filter weighing, residue analysis, materials research, and general quantitative laboratory work.
Pharmaceutical and biotechnology laboratories can use the balance for formulation ingredients, research compounds, reference materials, reagents, buffers, and analytical sample preparation.
Chemical laboratories can use the BCA324I-1S for standards preparation, solution preparation, compound weighing, gravimetric procedures, and quality-control testing.
Materials science and industrial laboratories may find the larger 320 g capacity especially useful when samples or sample holders are heavier than those typically encountered in pharmaceutical or chemical analysis.
The BCA324I-1S is particularly well suited for pharmaceutical, biotechnology, chemical, environmental, analytical testing, academic, food and beverage, cosmetics, materials science, R&D, and quality-control laboratories.
Its 320 g capacity makes it especially useful as a shared or general-purpose analytical balance.
Rather than selecting an analytical balance around one narrow application, laboratories can use the additional capacity to accommodate a wider range of sample containers and procedures.
For laboratories that routinely need 10 µg resolution or particularly small minimum sample quantities, a semi-microbalance may still be preferable.
When 0.1 mg readability satisfies the analytical method, the BCA324I-1S provides an unusually flexible combination of resolution and capacity.
The BCA324I-1S provides 0.1 mg readability throughout its 320 g weighing range.
Sartorius specifies typical repeatability of approximately 0.08 mg at around 5% of maximum load and approximately 0.1 mg near maximum capacity.
The manufacturer specifies a linearity limit of ±0.3 mg and a typical linearity value of approximately ±0.06 mg.
Typical stabilization time is ≤1.5 seconds.
This performance allows the BCA324I-1S to provide true analytical resolution while accommodating significantly heavier total loads than lower-capacity analytical balances.
The advantage of the BCA324I-1S becomes particularly apparent when tare weight is considered.
A laboratory may only need to weigh a 20 g sample, but if that sample is placed in a 200 g container, the balance must support a total load of approximately 220 g.
That procedure would already approach the maximum capacity of a conventional 220 g analytical balance.
With 320 g available, the BCA324I-1S provides substantially more room for the vessel and sample while retaining 0.1 mg readability.
This makes the balance useful for laboratories that work with heavier weighing bottles, glassware, crucibles, larger sample containers, specialized holders, or other substantial tare loads.
Sartorius technical documentation lists an optimum minimum initial weight of approximately 0.082 g, or 82 mg, according to USP Chapter 41 conditions for this analytical balance family.
The manufacturer also provides a typical minimum initial weight of approximately 0.16 g, or 160 mg.
These figures demonstrate why readability should not be confused with quantitative minimum sample weight.
Although the BCA324I-1S displays changes as small as 0.1 mg, that does not mean a 0.1 mg sample can be quantitatively weighed within typical pharmaceutical uncertainty requirements.
For USP, GMP, GLP, or other controlled procedures, laboratories should establish minimum weight using repeatability testing performed on the installed balance under actual operating conditions.
At 0.1 mg readability, even relatively minor air movement can influence the displayed result.
The BCA324I-1S therefore incorporates a manual analytical draft shield to protect the weighing pan and sample from routine laboratory airflow.
The enclosure helps reduce disturbances caused by HVAC systems, doors, nearby personnel, and other sources of moving air.
For best performance, the balance should still be positioned away from direct HVAC outlets, fans, open windows, frequently used doors, and other strong airflow sources.
The BCA324I-1S should be installed on a rigid, stable weighing surface away from significant vibration.
Centrifuges, shakers, pumps, compressors, refrigerators, freezers, and other equipment can transmit vibration through laboratory benches, floors, or surrounding structures.
Temperature differences between samples and the laboratory environment can also influence analytical weighing.
Whenever practical, samples should be allowed to equilibrate to room conditions before critical quantitative measurements.
Static electricity may become significant when weighing powders, filters, plastics, films, glassware, and other materials prone to electrostatic charge.
Appropriate antistatic accessories or handling techniques may be helpful when static becomes a meaningful source of error.
The BCA324I-1S incorporates Sartorius isoCAL automatic internal adjustment.
The “I” in the model designation identifies this internal-adjustment configuration.
isoCAL uses an internal reference weight to automatically perform adjustment when defined time or temperature conditions indicate that adjustment is required.
Sartorius specifies a 1.5 K temperature-change trigger and a four-hour time interval for isoCAL on this model.
Automatic internal adjustment helps maintain consistent analytical performance as laboratory conditions change throughout the day and reduces the need for technicians to manually perform routine adjustment using an external weight.
Independent verification may still be required according to USP, GMP, GLP, ISO, or laboratory-specific quality procedures.
Correct leveling is important for analytical weighing.
The Entris II Advanced platform incorporates Real-Time Level Support to help users recognize when the balance requires leveling.
This is particularly useful in multi-user laboratories where balances may occasionally be moved or repositioned during cleaning or maintenance.
The system provides additional operator guidance to help ensure that weighing begins with the balance properly set up.
The BCA324I-1S incorporates Sartorius CalAudit Trail functionality.
This supports documentation of calibration and adjustment activity and provides laboratories with a more complete record of balance performance.
Calibration-event documentation can be particularly valuable in pharmaceutical, biotechnology, quality-control, and other laboratories operating under formal quality systems.
Rather than treating adjustment as an undocumented background function, CalAudit Trail provides additional traceability for instrument activity.
Entris II Advanced balances incorporate integrated protection systems designed to help operators recognize unsuitable weighing conditions and avoid accepting compromised measurements.
These systems provide additional guidance beyond simply displaying a weight value.
For shared laboratory instruments, integrated safeguards can help standardize weighing practices and reduce dependence on individual operator experience.
The Entris II Advanced platform uses an LED screen with touch technology for access to weighing functions, applications, settings, adjustment information, and instrument controls.
The interface provides a straightforward menu structure while supporting the additional functionality expected from a modern analytical balance.
For laboratories replacing older instruments, the interface can simplify operator training and make commonly used weighing applications easier to access.
The Entris II Advanced platform includes integrated applications for common laboratory weighing procedures.
Applications support procedures such as weighing and dosing, counting, percentage weighing, mixing, totalizing, animal weighing, calculations, density determination, statistics, peak hold, checkweighing, and mass-unit conversion.
Underfloor weighing capability is also available for specialized procedures where a sample cannot conveniently be placed on the standard weighing pan.
Built-in applications can reduce manual calculations and help laboratories standardize repetitive weighing procedures.
The BCA324I-1S provides electronic interfaces for connection to compatible computers, printers, and laboratory peripherals.
RS232 and USB-C connectivity support electronic transfer of weighing data and integration with digital laboratory workflows.
Direct electronic transfer can reduce dependence on handwritten records and manual transcription.
For laboratories processing large numbers of analytical samples, this can improve efficiency while reducing opportunities for transcription error.
The BCA324I-1S supports underfloor weighing.
This allows a sample to be suspended beneath the balance rather than positioned directly on the weighing pan.
Underfloor weighing can be useful for density measurements, magnetic materials, unusually shaped objects, or specialized research applications where conventional pan weighing is unsuitable.
| Specification | Sartorius Entris II BCA324I-1S |
|---|---|
| Balance Type | Analytical Balance |
| Product Line | Entris II Advanced |
| Maximum Capacity | 320 g |
| Readability | 0.1 mg |
| Typical Repeatability at Approx. 5% Load | 0.08 mg |
| Typical Repeatability Near Maximum Load | 0.1 mg |
| Linearity Limit | ±0.3 mg |
| Typical Linearity | ±0.06 mg |
| Typical Stabilization Time | ≤1.5 seconds |
| Typical Measurement Time | ≤2.0 seconds |
| Adjustment | Internal automatic / isoCAL |
| isoCAL Temperature Trigger | 1.5 K |
| isoCAL Time Interval | 4 hours |
| Recommended External Calibration Weight | 200 g, E2 |
| Draft Shield | Manual analytical draft shield |
| Weighing Pan | Round |
| Pan Diameter | 90 mm |
| Optimum USP Minimum Initial Weight | Approx. 82 mg |
| Typical Minimum Initial Weight | Approx. 160 mg |
| Leveling | Real-Time Level Support |
| Calibration Documentation | CalAudit Trail |
| Display | LED screen with touch technology |
| Connectivity | RS232 and USB-C |
| Underfloor Weighing | Yes |
| Sensitivity Drift, +10°C to +30°C | ±1.0 ppm/K |
| Operating Temperature | +10°C to +30°C |
| Power Requirements | 100–240 VAC, 50–60 Hz |
| Condition | New |
| Warranty | Sartorius manufacturer warranty |
The Entris II Advanced analytical family provides several capacities while maintaining the same 0.1 mg readability.
The BCA124I-1S provides 120 g capacity.
The BCA224I-1S provides 220 g capacity.
The BCA324I-1S increases maximum capacity to 320 g.
For laboratories working almost exclusively with small samples and lightweight vessels, the 120 g model may provide all the capacity required.
The 220 g model provides greater flexibility for routine analytical work and is a strong general-purpose choice.
The 320 g BCA324I-1S becomes particularly attractive when heavier vessels, larger samples, or specialized sample holders are regularly used.
Because all three models provide 0.1 mg readability, laboratories can select capacity according to their actual working requirements without sacrificing displayed analytical resolution.
The BCA324I-1S and BCA224I-1S provide the same 0.1 mg readability and share many Entris II Advanced features.
The major difference is maximum capacity.
The BCA224I-1S provides 220 g.
The BCA324I-1S provides 320 g.
That additional 100 g can be significant when heavier tare vessels are involved.
For routine analytical samples that remain comfortably below 220 g including the container, the BCA224I-1S may be sufficient.
For laboratories that want greater tare flexibility or routinely work with heavier total loads, the BCA324I-1S provides additional working headroom.
The BCA324I-1S provides conventional analytical readability of 0.1 mg.
A semi-microbalance typically provides 0.01 mg / 10 µg readability, giving it ten times finer displayed resolution.
Semi-micro performance can be valuable for very small samples, expensive compounds, potent materials, pharmaceutical reference standards, and methods with particularly demanding uncertainty requirements.
Greater sensitivity also increases susceptibility to environmental effects such as vibration, airflow, static electricity, and temperature gradients.
When 0.1 mg readability satisfies the analytical method, the BCA324I-1S provides a practical combination of high capacity, analytical sensitivity, rapid stabilization, and ease of use.
Sartorius offers Entris II balances in both Essential and Advanced configurations.
The Advanced Line represented by the BCA324I-1S adds operator-guidance, quality-control, and workflow features beyond basic weighing functionality.
Real-Time Level Support, CalAudit Trail, integrated protection systems, enhanced user controls, and expanded applications can be especially useful in multi-user or documentation-intensive laboratories.
The Advanced platform is therefore particularly well suited for laboratories where weighing is part of a controlled analytical workflow rather than simply an isolated mass measurement.
This Sartorius Entris II BCA324I-1S is offered brand new through American Instrument Exchange.
It is not used or refurbished equipment.
The balance is supplied as new equipment and includes the applicable Sartorius manufacturer warranty.
For laboratories that prefer current-production equipment, factory-new condition, modern Sartorius technology, and manufacturer warranty coverage, the Entris II provides an attractive alternative to purchasing a refurbished analytical balance.
American Instrument Exchange also offers used and refurbished balances for laboratories that prioritize acquisition cost or need discontinued models for established methods.
The BCA324I-1S should be installed on a rigid, stable, vibration-resistant laboratory surface away from direct HVAC airflow, windows, frequently used doors, centrifuges, shakers, pumps, compressors, refrigerators, freezers, and other sources of vibration or air movement.
After installation, the balance should be leveled and allowed to acclimate to the laboratory environment before critical quantitative measurements begin.
The isoCAL system can then support routine internal adjustment as time and temperature conditions change.
For regulated or particularly demanding applications, installation should be followed by appropriate calibration verification, repeatability testing, minimum-weight determination, or qualification according to the laboratory's quality procedures.
American Instrument Exchange maintains an extensive inventory of used, refurbished, and new laboratory balances, including analytical balances, semi-micro balances, microbalances, and precision balances for applications ranging from routine sample preparation to high-resolution quantitative analysis.
Labs developing complete analytical or sample-preparation workflows can also source centrifuges, water baths, incubators, laboratory refrigerators, laboratory freezers, and other laboratory equipment from American Instrument Exchange.
The BCA324I-1S has a maximum weighing capacity of 320 g.
The balance provides 0.1 mg readability throughout its weighing range.
Yes. Sartorius classifies the BCA324I-1S as an analytical balance. It combines conventional 0.1 mg analytical readability with an unusually large 320 g capacity.
Yes. The “I” configuration incorporates Sartorius isoCAL automatic internal adjustment.
Sartorius specifies typical repeatability of approximately 0.08 mg at around 5% load and approximately 0.1 mg near maximum load.
Sartorius specifies a linearity limit of ±0.3 mg and a typical linearity value of approximately ±0.06 mg.
Typical stabilization time is ≤1.5 seconds.
Sartorius technical documentation provides an optimum USP minimum initial weight of approximately 82 mg and a typical minimum initial weight of approximately 160 mg. Actual minimum weight should be established under the balance's installed operating conditions.
Sartorius recommends a 200 g E2 external calibrated test weight for verification of the BCA324I-1S.
The larger capacity provides additional room for heavier samples, containers, and tare vessels while retaining 0.1 mg analytical readability.
Both provide 0.1 mg readability. The BCA224I-1S has 220 g maximum capacity, while the BCA324I-1S increases capacity to 320 g.
Not inherently. The principal advantage is additional working capacity. Balance selection should consider readability, repeatability, minimum weight, environmental conditions, and the laboratory's actual weighing requirements rather than maximum capacity alone.
Yes. The Entris II Advanced platform provides electronic interfaces including RS232 and USB-C for connection to compatible computers, printers, and laboratory peripherals.
This BCA324I-1S is offered brand new by American Instrument Exchange and includes the applicable Sartorius manufacturer warranty.
The BCA324I-1S combines 320 g capacity with 0.1 mg analytical readability, isoCAL automatic internal adjustment, rapid stabilization, Real-Time Level Support, CalAudit Trail, integrated protection systems, modern touch operation, built-in applications, and electronic connectivity in a current-generation analytical balance.
CLICK HERE to see the Sartorius Entris II BCA324I-1s analytical balance on our YouTube channel
Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.
We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.
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Yes – please see our repair services page for more information.