A practical guide to the analytical balance definition, principle, function, and key uses of the EZL-AB107 across pharmaceutical, chemical, food, and environmental laboratory workflows.
Before examining where the EZL-AB107 fits in practice, a clear analytical balance definition establishes what distinguishes this instrument class from general-purpose weighing equipment.
An analytical balance is a precision weighing instrument capable of measuring mass to a readability of 0.1 mg (0.0001 g) or finer. This sub-milligram resolution places it in a category above top-loading laboratory balances, which typically read to 0.01 g or 0.001 g. The defining characteristic is not just the numerical readout precision — it is the combination of electromagnetic force restoration (EMFR) weighing technology, draught shield enclosure, and vibration-damping systems that make that precision reproducible in real laboratory conditions.
The EZL-AB107 delivers 0.1 mg readability with a 110 g capacity, a 180-second stabilisation time in standard conditions, and a full-colour touchscreen interface — positioning it as an analytical balance machine suited for QC, formulation, and research workflows that require documented, auditable weighing records.
EZL-AB107 at a glance: 0.1 mg readability · 110 g capacity · OIML Class I · Automatic internal calibration · Full-colour touchscreen · RS232 / USB / Bluetooth connectivity · 110–240V universal power.
Understanding the analytical balance principle explains why these instruments require specific operating conditions and why handling and environmental factors affect measurement accuracy.
Unlike mechanical spring-based balances, most modern analytical balance equipment uses EMFR technology. A coil-in-magnet system generates an electromagnetic force that counteracts the weight of the sample placed on the pan. The current required to maintain pan position is proportional to the sample mass — providing a direct electrical measurement of weight with no mechanical wear on the sensor over time.
At 0.1 mg readability, air currents from nearby ventilation, personnel movement, or open laboratory doors introduce weighing errors that exceed the readability threshold. The draught shield enclosure on the EZL-AB107 isolates the weighing chamber from ambient airflow, allowing the balance to reach a stable reading rather than continuously fluctuating. This is a fundamental aspect of the analytical balance function that cannot be replicated by removing or bypassing the enclosure.
The EZL-AB107 includes an automatic internal calibration system that activates in response to temperature changes in the environment. Unlike balances that rely on external calibration weights — a common source of calibration drift in high-use laboratories — internal calibration maintains measurement accuracy throughout the working day without operator intervention. This function directly addresses one of the most frequent causes of out-of-specification results in pharmaceutical and chemical QC workflows.
The analytical balance machine incorporates active or passive vibration damping to suppress the effect of bench-top and building vibration on readings. The built-in levelling indicator confirms that the balance pan is horizontal — a prerequisite for accurate EMFR measurement, as gravitational force acts vertically and any tilt introduces a systematic offset.
The range of analytical balance uses spans all disciplines where mass measurement at sub-milligram resolution is a documented process step. The EZL-AB107 covers the following primary application areas.
Active pharmaceutical ingredient (API) weighing, excipient dispensing, and blend uniformity testing all require analytical balance accuracy. The EZL-AB107's 0.1 mg readability and automatic internal calibration support GMP-compliant weighing with documented records at each step. Unlike a mettler toledo analytical balance or sartorius analytical balance, the EZL-AB107 integrates touchscreen operation with RS232, USB, and Bluetooth output in a single unit.
Gravimetric analysis, standard preparation, and reagent dispensing in analytical chemistry require sub-milligram accuracy to produce reference standards within acceptable uncertainty limits. The EZL-AB107 analytical balance equipment supports these workflows with its 110 g capacity — sufficient for most volumetric flask and standard preparation tasks — and USB data output for direct transfer to laboratory data management systems.
Research applications — synthesis work, sample preparation for instrumental analysis, and formulation studies — place the same accuracy demands on a balance as pharmaceutical QC, but often with smaller sample sizes and more varied sample types. The EZL-AB107's touchscreen interface and multiple connectivity options support structured data collection workflows where the analytical balance function is integrated into a broader laboratory information system.
Moisture determination, ingredient weighing for nutritional label compliance, and food additive dispensing at low concentrations all rely on analytical balance accuracy. The EZL-AB107 provides the sub-milligram resolution needed for these measurements while offering the data output options required for HACCP and food safety documentation workflows.
Gravimetric analysis of suspended solids, filter residue weighing for air quality sampling, and preparation of calibration standards for water quality instruments are among the analytical balance uses in environmental monitoring laboratories. The 0.1 mg readability of the EZL-AB107 meets the precision requirements for gravimetric methods specified in standard environmental test protocols.
Gemstones, precious metal samples, and jewellery assay work require a balance that reads to the 0.1 mg level across a capacity range suitable for larger single specimens. The EZL-AB107's 110 g capacity and draught shield enclosure make it suited for gemological applications where the ohaus analytical balance-class accuracy is needed in a compact, touchscreen-operated instrument.
The following parameters define the operating envelope of the EZL-AB107 analytical balance machine across its weighing, calibration, and connectivity capabilities.
| Parameter | Specification |
|---|---|
| Capacity | 110 g |
| Readability | 0.1 mg (0.0001 g) |
| Repeatability (SD) | 0.1 mg |
| Linearity | ±0.2 mg |
| Stabilisation Time | ≤ 5 seconds (standard conditions) |
| Calibration | Automatic internal calibration |
| Weighing Units | g, mg, ct, oz, ozt, lb, GN, tael |
| Pan Size | Ø 90 mm |
| Display | Full-colour touchscreen |
| Connectivity | RS232, USB, Bluetooth |
| Classification | OIML Class I |
| Power Supply | 110–240V AC, 50/60 Hz |
Full datasheet: EZL-AB107 Analytical Balance — Ezilab | Browse all analytical balances
Choosing the right analytical balance equipment involves more than matching readability to specification — the operating environment, calibration approach, and data output requirements all affect whether a balance will perform consistently in daily use.
Navigate directly to the EZL-AB107 product page or explore the full analytical balance range on the Ezilab website.
0.1 mg readability · 110 g capacity · OIML Class I · Automatic internal calibration · Touchscreen · RS232 / USB / Bluetooth
Explore the EZL-AB107