Lab Balances and Scales Feature Comparison
Uses for Balances in Laboratories
Lab balances and scalesare offered in a variety of designs to measure sample mass, density, and moisture content of solids, liquids, and powders. While a scale determines the mass of a sample, a balance is designed to compare the mass of multiple samples. Balances and scales are offered in several configurations: analytical, precision, top-loading, front-loading, high-capacity and moisture analysis.
What types of Balances are Used in a Laboratory?
Certain balances offer additional functionality, such as data traceability (for 21CFR Part 11 compliance), integration with external devices (such as a printer, computer, or barcode reader), pipette calibration, and sample protection (such as a draft shield) for installation into a laminar flow hood or ISO-rated cleanroom.
A - Balance Type
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A1 - Analytical Balances
Analytical balancesare optimal for most standard lab weighing operations, such as density determination, comparative mass analysis and dynamic weighing. Analytical balances measure samples to very tight tolerances, yielding readabilities down to 0.0001 grams. As analytical scales are sensitive to air current and temperature changes, most models include a draft shield to maintain a controlled measuring environment.
A2-精确余额
Precision balances是分析平衡的经济替代方法。虽然精密量表比分析模型支持更高的重量能力，但它们不会产生相似的公差（降低到0.001克）。精确量表在体验温度和湿度波动的环境中产生稳定的读数。
A3 - High-Capacity Balances
高容量平衡旨在在生产环境中称重散装粉末，动物和重型储物容器。尽管分析和精度平衡分别适合300克和600克的重量负荷，但高容量平衡可以测量最高34,000克的负载。
A4 - Micro Balances
Microbalancesare designed to weigh small samples (up to 6 grams) at industry-leading tolerances (readabilities down to 0.0000001 grams). Microbalances are extremely sensitive to changes in atmospheric conditions and require recalibration on a semi-annual basis.
B - Scale and Balance Weighing Capacity
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实验室平衡提供a broad range of weighing capacities, from ultra-micro scales designed to measure down to the milligram and microgram levels, to high-capacity balances capable of measuring weights up to 34,000 grams. Electronic scales provide readouts in dozens of different units, including grams, milligrams, kilograms, pounds, ounces and grains.
C - Balance Weighing Pan Size
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实验室平衡和尺度包括称重ns to accommodate a variety of sample types, including powders, liquids, solids and living organisms. Smaller, round pans are optimal for weighing low quantities of aqueous samples or powders, while larger, square pans are ideal for weighing solids or tare vessels (such as weight buckets).
D - Balancing Loading and Format
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D1 - Front-Loading Balances
Front-loading balances include draft shields to protect the sample from air movement and temperature fluctuations. Ionizer draft shields dissipate static charges to protect fine powders from aggregating to draft shield walls.
D2 - Top-Loading Balances
Top-loading balances are designed without a draft shield to provide easy access to the weighing pan. Top-loading scales are optimal for weighing bulky solids, animals, or large containers that require unobstructed access to the weighing pan.
F - Application-Specific Features
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F1 - Balance Draft Shields
Sartorius Modular Cubis II Micro and Ultra-Micro Balancesare available with glass or stainless steel draft shields. Draft shields offer protection for fine powders or aqueous samples sensitive to air currents or static charges. Common draft shields provide access to the weighing pan from the front, top and sides.
F2 - LIMS Integration
Sartorius Quintixbalances offer data export programs compatible with a variety of software packages, including Microsoft Office and LIMS (Laboratory Information Management System), to support sample lot traceability, workflow efficiency, and event reporting.
F3 - Auto Calibration of Balances
Sartorius Securaand Quintix balances include isoCAL software to support automatic or user-determined instrument recalibration routines at monthly intervals or after balance relocation.
F4 - USP Compliance
Sartorius Cubis II（PDF）, Quintix, and Secura balances automatically log all recorded measurements for daily export and review per USP <797> and <800> guidelines.
F5 -21CFR第11部分合规性
Sartorius Cubis II余额包括端到端数据完整性，安全数据传输，用于受控数据访问的电子签名以及21CFR第11部分合规性的审计跟踪。
Buy Online:Cubis II Ultra-Micro and Microbalances by Sartorius
Where Can I Find a Trusted Supplier of Lab Balances and Other Laboratory Equipment?
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Shop online to compare pricing，用于多种实验室平衡和设备的功能和选择，包括PCR，DNA/RNA技术，ELISA，蛋白质分析和细胞培养。
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