B Series Precision Electronic Balance

Overview

The B Series Precision Electronic Balance is a robust, entry-to-mid-tier analytical weighing instrument engineered for consistent mass measurement in non-regulated and light-regulated laboratory and industrial environments. Built upon electromagnetic force compensation (EMFC) transduction technology, it delivers stable, drift-compensated readings under standard ambient conditions (20 ± 5 °C, <70 % RH). Unlike high-end analytical balances with draft shields and internal calibration motors, the B Series prioritizes operational simplicity and mechanical durability—featuring a stainless-steel weighing pan and powder-coated metal base designed for resistance to chemical splashes, mechanical abrasion, and long-term structural stability. Its architecture supports routine gravimetric tasks where repeatability within ±0.1 g or ±1 g (depending on model configuration) meets method requirements—such as sample preparation, reagent dispensing, formulation batching, and educational demonstrations.

Key Features

• Stainless-steel weighing pan (Φ130 mm or 160 mm × 160 mm) for corrosion resistance and easy cleaning
• Powder-coated metal base providing mechanical rigidity and vibration damping
• Two readability options per model (0.1 g / 1 g) selectable via front-panel configuration
• Tare and piece-counting functions with automatic unit weight calculation
• LED or LCD display variants available—optimized for visibility in varied lighting conditions
• Integrated overload protection and auto-zero tracking to maintain baseline integrity
• AC-powered operation (220 V, 50 Hz) with low-power standby mode for energy efficiency

Sample Compatibility & Compliance

The B Series accommodates solid, granular, and powdered samples typical of academic labs, R&D centers, and QC departments in chemical manufacturing, pharmaceutical excipient handling, and materials science education. While not certified for USP Chapter 41 or ASTM E898 compliance (which require documented linearity, eccentricity, and repeatability testing), its performance aligns with ISO 9001-supported internal calibration protocols when used with traceable Class M2 or M1 weights. The absence of built-in calibration mechanisms necessitates external verification at defined intervals—recommended per ISO/IEC 17025 clause 6.5 for laboratories maintaining technical competence records. No IP rating is assigned; therefore, operation in high-humidity or dust-laden environments requires localized environmental control.

Software & Data Management

The B Series does not include proprietary PC software or USB/RS-232 connectivity as standard. However, models equipped with optional serial output (RS-232 interface) support ASCII-based data streaming to third-party LIMS or Excel-based logging systems using standard terminal emulation (e.g., Tera Term, PuTTY). All units generate time-stamped weight values compliant with basic GLP documentation needs—provided the connected host system implements audit-trail functionality. For regulated environments requiring FDA 21 CFR Part 11 compliance, integration must be validated through user-defined risk assessment and electronic signature workflows external to the balance itself.

Applications

• Student laboratories: Quantitative chemistry experiments, molar mass determination, stoichiometric ratio verification
• R&D settings: Pre-formulation powder blending, catalyst loading, polymer sample preparation
• Industrial QA/QC: Raw material receipt inspection, batch weight verification, packaging net-content checks
• Environmental testing labs: Soil/sediment subsampling, filter weight gain analysis (pre/post-drying)
• Veterinary and agricultural extension services: Feed additive dosing, seed count calibration, fertilizer formulation

FAQ

Is internal calibration available on the B Series?
No—calibration must be performed externally using certified reference weights. Routine verification is recommended before each shift or daily, depending on usage frequency and criticality.
Can this balance be used in a fume hood?
Yes, provided airflow is minimized (<0.2 m/s across the pan) and temperature gradients are stabilized; however, no draft shield is included, so positional placement and ventilation management are user responsibilities.
What is the warm-up time required for stable readings?
Minimum 30 minutes after power-on under stable ambient conditions; extended stabilization may be needed following large ambient temperature shifts.
Does the B Series meet OIML R76 or NIST Handbook 44 requirements?
No—it is not type-approved for legal-for-trade applications; it is designated for laboratory and industrial process support only.
Are service manuals or firmware updates available to end users?
Technical documentation and firmware are provided exclusively to authorized service partners; end-user access is restricted per manufacturer policy.