Sartorius Entris II BCA124I-1S Advanced Analytical Balance – New
The Sartorius Entris II BCA124I-1S Advanced Analytical Balance combines 120 g maximum capacity with 0.1 mg readability for routine quantitative laboratory weighing, sample preparation, formulation, standards preparation, quality control, and research applications.
Available brand new from American Instrument Exchange, the BCA124I-1S belongs to the Sartorius Entris II Advanced Line and incorporates isoCAL automatic internal adjustment, a manual analytical draft shield, real-time leveling support, CalAudit Trail, integrated protection systems, a graphic touch display, user-management features, electronic connectivity, and 13 built-in application programs.
With conventional analytical-balance resolution and a useful 120 g capacity, the BCA124I-1S is well suited for laboratories that need reliable sub-milligram weighing without the additional environmental sensitivity or cost associated with semi-micro and microbalance systems.
This balance is supplied new and includes the applicable Sartorius manufacturer warranty.
Key Features
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120 g maximum weighing capacity
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0.1 mg readability
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0.1 mg repeatability
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0.2 mg linearity
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Typical stabilization time of ≤1.5 seconds
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isoCAL automatic internal adjustment
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Manual analytical draft shield
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240 mm weighing chamber height
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90 mm diameter weighing pan
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Real-Time Level Support
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CalAudit Trail
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Integrated protection systems
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Graphic touch display
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User-management and password-protection capabilities
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13 built-in application programs
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RS232 connectivity
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USB-C connectivity
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USB-C host interface
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Underfloor weighing capability
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Recommended external calibration weight: 100 g, E2
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219 × 317 × 345 mm overall dimensions
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Brand new from American Instrument Exchange
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Sartorius manufacturer warranty included
Overview
The Sartorius Entris II BCA124I-1S is a current-generation analytical balance designed for laboratories that need dependable 0.1 mg weighing performance combined with modern workflow and quality-control features.
Its 120 g capacity provides enough working range for common analytical samples, weighing vessels, filters, vials, crucibles, standards, reagents, and other routine laboratory materials.
The 0.1 mg readability places the BCA124I-1S firmly within the conventional analytical-balance category.
This makes it substantially more sensitive than general precision balances while remaining easier to install and operate than semi-microbalances offering 0.01 mg readability or microbalances operating at 0.001 mg and below.
The Entris II Advanced platform also adds functionality that can help improve consistency across multi-user laboratories, including automatic internal adjustment, leveling assistance, calibration-event documentation, password protection, electronic interfaces, and configurable weighing applications.
Common Applications
The Sartorius Entris II BCA124I-1S Advanced Analytical Balance 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, and general laboratory research.
Pharmaceutical and biotechnology laboratories can use the balance for research compounds, reference materials, formulation ingredients, reagents, buffers, and routine analytical procedures.
Chemical laboratories can use the BCA124I-1S for solution preparation, compound weighing, standards preparation, quantitative analysis, and quality-control work.
Environmental laboratories may use the balance for filters, residues, particulate analysis, and other gravimetric procedures where 0.1 mg readability is appropriate.
Academic, food science, cosmetics, materials science, and industrial laboratories can also use the Entris II for a broad range of quantitative weighing procedures.
Ideal Laboratory Types
The BCA124I-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 combination of 120 g capacity and 0.1 mg readability makes it a strong general-purpose analytical balance.
For many laboratories, conventional analytical resolution provides an effective balance between sensitivity, working capacity, speed, environmental stability, and acquisition cost.
Labs that routinely require smaller minimum sample quantities or 10 µg resolution may want to consider a semi-microbalance instead.
Analytical Weighing Performance
The BCA124I-1S provides 0.1 mg readability throughout its 120 g weighing range.
Sartorius specifies repeatability of 0.1 mg and linearity of 0.2 mg.
Typical stabilization time is ≤1.5 seconds, allowing relatively fast repetitive weighing while maintaining analytical-level resolution.
These specifications make the Entris II suitable for a wide variety of quantitative laboratory procedures where conventional analytical performance is appropriate.
120 g Capacity for Routine Analytical Work
A 120 g capacity provides useful flexibility for routine analytical weighing.
Many common procedures involve samples that are relatively light but require containers, filters, vials, weighing boats, crucibles, or other tare vessels.
The BCA124I-1S provides enough capacity to accommodate these items while maintaining 0.1 mg readability.
For laboratories that do not routinely work with heavier containers, the 120 g format can provide a compact and efficient alternative to larger 220 g or 320 g analytical balances.
Controlling Drafts & Airflow
At 0.1 mg readability, air movement can cause visible fluctuations in displayed weight.
The Sartorius Entris II BCA124I-1S Advanced Analytical Balance therefore incorporates a manual glass analytical draft shield around the weighing chamber.
The enclosure helps protect the weighing pan and sample from normal laboratory airflow caused by HVAC systems, doors, nearby movement, and other environmental disturbances.
The 240 mm weighing-chamber height provides useful room for common laboratory containers and sample vessels.
For best results, the balance should still be positioned away from direct HVAC outlets, fans, frequently opened doors, windows, and other strong sources of air movement.
Sartorius Entris II BCA124I-1S Advanced Analytical Balance Vibration, Temperature & Static Control
Analytical weighing performance depends on more than the balance itself.
The BCA124I-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 benches or floors.
Temperature differences between the sample and surrounding laboratory air can also influence analytical measurements.
Samples should therefore be allowed to equilibrate to room conditions before critical quantitative weighing whenever practical.
Static electricity may influence results when weighing powders, filters, plastics, films, glassware, or other materials prone to electrostatic charge.
Appropriate antistatic techniques or accessories may be helpful for particularly sensitive applications.
isoCAL Automatic Internal Adjustment
The BCA124I-1S incorporates Sartorius isoCAL automatic internal adjustment.
isoCAL uses an internal reference weight to automatically adjust the balance when defined environmental or time conditions indicate that adjustment is appropriate.
This helps maintain weighing accuracy as laboratory temperature changes during the day and reduces the need for users to manually perform routine adjustment using an external calibration weight.
For an analytical balance operating at 0.1 mg readability, automatic internal adjustment can provide a meaningful improvement in day-to-day convenience and consistency.
External calibration verification may still be required under USP, GMP, GLP, ISO, or laboratory-specific quality procedures.
Real-Time Level Support
Correct leveling is important for analytical weighing.
The Entris II Advanced Line incorporates Real-Time Level Support to help users identify and correct leveling issues before they affect measurements.
This can be particularly valuable in multi-user laboratories where balances may be moved, cleaned, or repositioned.
Rather than relying solely on periodic manual inspection, the balance provides ongoing assistance to help maintain proper setup.
CalAudit Trail
The Entris II Advanced platform includes CalAudit Trail functionality.
This feature supports documentation of calibration and adjustment activity, helping laboratories maintain a more complete record of balance performance.
For laboratories operating under controlled quality systems, documented adjustment history can improve traceability and simplify review of instrument performance.
CalAudit Trail is especially useful when the balance is shared among multiple users or forms part of a larger documented analytical workflow.
Integrated Protection Systems
Sartorius equips Entris II Advanced balances with integrated protection systems designed to help users identify unsuitable weighing conditions and reduce the possibility of compromised results.
These features provide additional operator guidance beyond basic mass measurement.
In laboratories with multiple users or varying levels of weighing experience, integrated safeguards can help standardize procedures and improve consistency.
Graphic Touch Display
The BCA124I-1S uses a graphic touch display for access to weighing functions, applications, configuration settings, calibration information, and system controls.
The menu-driven interface helps simplify routine operation and reduces dependence on complex key combinations.
For laboratories transitioning from older analytical balances, the modern interface can improve operator training and make frequently used applications easier to access.
Built-In Applications
The Entris II Advanced Line provides 13 built-in application programs for common laboratory weighing procedures.
Depending on the selected workflow, these applications can support tasks such as:
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Standard weighing
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Dosing
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Counting
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Percentage weighing
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Mixing
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Totalizing
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Animal weighing
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Calculation
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Density determination
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Statistics
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Peak hold
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Checkweighing
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Unit conversion
Integrated applications can reduce manual calculations and help users perform routine procedures more consistently.
Connectivity & Data Transfer
The BCA124I-1S provides RS232, USB-C, and USB-C host connectivity.
These interfaces allow the balance to communicate with compatible computers, printers, and laboratory peripherals.
Electronic transfer of weighing results can reduce manual transcription and the possibility of recording errors.
For laboratories processing large numbers of samples, direct electronic data capture can also improve efficiency and facilitate integration into digital laboratory workflows.
Underfloor Weighing
The BCA124I-1S supports underfloor weighing, allowing samples to be suspended beneath the balance rather than placed directly on the weighing pan.
This capability can be useful for density determination, magnetic samples, unusually shaped objects, or other procedures where conventional pan weighing is not practical.
Key Specifications
| Specification |
Sartorius Entris II BCA124I-1S |
| Balance Type |
Analytical Balance |
| Product Line |
Entris II Advanced |
| Maximum Capacity |
120 g |
| Readability |
0.1 mg |
| Repeatability |
0.1 mg |
| Linearity |
0.2 mg |
| Typical Stabilization Time |
≤1.5 seconds |
| Adjustment |
Internal automatic / isoCAL |
| External Calibration Weight |
100 g, E2 |
| Draft Shield |
Manual analytical draft shield |
| Weighing Chamber Height |
240 mm |
| Weighing Pan |
Round |
| Pan Diameter |
90 mm |
| Leveling |
Real-Time Level Support |
| Calibration Documentation |
CalAudit Trail |
| Display |
Graphic touch display |
| Applications |
13 built-in programs |
| Data Interfaces |
RS232, USB-C, USB-C Host |
| Underfloor Weighing |
Yes |
| Sensitivity Drift, +10°C to +30°C |
±1.0 ppm/K |
| Operating Temperature |
+10°C to +30°C |
| Overall Dimensions |
219 mm W × 317 mm D × 345 mm H |
| Power Requirements |
100–240 VAC, 50–60 Hz |
| Legal Verification |
Non-verified |
| Condition |
New |
| Warranty |
Sartorius manufacturer warranty |
Choosing Between 120 g and 220 g Analytical Balances
The 120 g BCA124I-1S is a good choice for laboratories whose samples and containers remain comfortably below its capacity.
A 220 g analytical balance provides additional tare capacity for heavier vessels and larger samples while typically maintaining the same 0.1 mg readability.
The extra capacity is not automatically beneficial if it is never used.
For laboratories primarily weighing small samples, reference standards, filters, reagents, or modest laboratory vessels, the 120 g model may provide all the working range required.
A larger-capacity analytical balance becomes more attractive when heavier containers or greater tare flexibility are routinely needed.
Analytical Balance vs. Semi-Microbalance
The BCA124I-1S provides conventional analytical readability of 0.1 mg.
A semi-microbalance typically provides 0.01 mg / 10 µg readability, offering ten times finer displayed resolution.
That extra sensitivity can be important for very small samples, expensive materials, potent compounds, and procedures with tighter uncertainty requirements.
However, semi-microbalances are also more susceptible to environmental effects such as vibration, air movement, static electricity, and temperature gradients.
For routine quantitative analysis, formulation, sample preparation, quality control, and standards work, the BCA124I-1S may provide a more practical combination of sensitivity, speed, and ease of use.
BCA124I-1S vs. BCA124-1S
Sartorius offers both internal- and external-adjustment versions of the 120 g Entris II Advanced analytical balance.
The BCA124I-1S includes isoCAL automatic internal adjustment.
The BCA124-1S uses external adjustment.
Both provide 120 g capacity and 0.1 mg readability.
The internal-adjustment BCA124I-1S is particularly attractive for laboratories that want the convenience of automatic time- and temperature-triggered adjustment.
The externally adjusted BCA124-1S can be appropriate for laboratories that maintain certified calibration weights and prefer manual control of adjustment procedures.
Entris II Advanced vs. Entris II Essential
Sartorius offers Entris II balances in both Essential and Advanced configurations.
The Advanced Line represented by the BCA124I-1S adds workflow and quality-control features beyond the more basic Essential platform.
These include Real-Time Level Support, CalAudit Trail, integrated protection systems, a graphic touch display, expanded application functionality, and additional operator-management capabilities.
Laboratories that primarily need basic weighing may find the Essential Line sufficient.
The Advanced Line becomes particularly attractive for multi-user, quality-controlled, or documentation-intensive environments.
New Sartorius Balances from American Instrument Exchange
This Sartorius Entris II BCA124I-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 instruments, factory-new condition, current Sartorius technology, and manufacturer warranty coverage, the Entris II provides an attractive alternative to purchasing a refurbished analytical balance.
American Instrument Exchange can also help laboratories source additional Sartorius laboratory equipment and complementary sample-preparation equipment for complete laboratory workflows.
Shipping & Installation Considerations
Analytical balances require more careful installation than routine precision balances.
The BCA124I-1S should be placed on a rigid, stable, vibration-resistant laboratory bench away from HVAC outlets, direct sunlight, windows, frequently used doors, centrifuges, shakers, pumps, compressors, refrigerators, and other sources of airflow or vibration.
After installation, the balance should be leveled and allowed to acclimate to the laboratory environment before critical quantitative weighing.
The isoCAL system can then maintain routine internal adjustment as environmental conditions change.
For regulated applications, laboratories should also perform appropriate calibration verification, repeatability testing, minimum-weight determination, or qualification according to internal quality procedures.
Related Laboratory Equipment
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.
Sartorius Entris II BCA124I-1S Analytical Balance FAQs
What is the maximum capacity of the Sartorius BCA124I-1S?
The BCA124I-1S has a maximum weighing capacity of 120 g.
What is the readability of the BCA124I-1S?
The balance provides 0.1 mg readability throughout its weighing range.
Is the BCA124I-1S an analytical balance?
Yes. Sartorius classifies the BCA124I-1S as an analytical balance. Its 0.1 mg readability is characteristic of conventional analytical weighing.
Does the BCA124I-1S include isoCAL?
Yes. The “I” version of the BCA124 includes Sartorius isoCAL automatic internal adjustment.
What is the repeatability of the BCA124I-1S?
Sartorius specifies repeatability of 0.1 mg.
What is the linearity of the BCA124I-1S?
Sartorius specifies linearity of 0.2 mg.
How quickly does the BCA124I-1S stabilize?
Typical stabilization time is ≤1.5 seconds.
Does the BCA124I-1S have a draft shield?
Yes. The balance includes a manual analytical draft shield with approximately 240 mm of weighing-chamber height.
What size is the weighing pan?
The BCA124I-1S uses a round weighing pan approximately 90 mm in diameter.
What is Real-Time Level Support?
Real-Time Level Support helps users identify when the balance requires leveling and provides guidance for restoring the proper setup before critical measurements are performed.
What is CalAudit Trail?
CalAudit Trail supports documentation of calibration and adjustment events, helping laboratories maintain a history of balance performance and adjustment activity.
Can the BCA124I-1S transfer data electronically?
Yes. The balance includes RS232, USB-C, and USB-C host connectivity for communication with compatible computers, printers, and laboratory peripherals.
What is the difference between the BCA124I-1S and BCA124-1S?
Both models provide 120 g capacity and 0.1 mg readability. The BCA124I-1S includes isoCAL automatic internal adjustment, while the BCA124-1S uses external adjustment.
Is this Entris II balance new or refurbished?
This BCA124I-1S is offered brand new by American Instrument Exchange and includes the applicable Sartorius manufacturer warranty.
Why choose the Sartorius Entris II BCA124I-1S?
The BCA124I-1S combines 120 g capacity, 0.1 mg analytical readability, isoCAL automatic internal adjustment, fast stabilization, a full analytical draft shield, Real-Time Level Support, CalAudit Trail, touchscreen operation, built-in applications, and modern data connectivity in a current-generation laboratory balance.
