SHYP JA31002 Precision Balance

Overview

The SHYP JA31002 Precision Balance is an entry-level analytical-grade laboratory balance engineered for routine mass measurement tasks in quality control labs, educational institutions, and production environments where high repeatability and robust environmental tolerance are required. Operating on electromagnetic force compensation (EMFC) principle, the JA31002 delivers stable, drift-resistant readings across ambient temperature fluctuations (10–30 °C) and moderate air currents—common challenges in non-climate-controlled lab spaces. With a maximum capacity of 3100 g and readability of 10 mg (0.01 g), it meets the performance criteria for Class II precision balances per OIML R76-1:2021 and aligns with ASTM E1223-22 for general-purpose weighing applications. Its compact footprint (350 × 215 × 115 mm) enables seamless integration onto shared benchtops without compromising mechanical stability or vibration isolation.

Key Features

• Electromagnetic force compensation sensor with auto-zero tracking and internal damping algorithm to minimize settling time under variable load conditions.
• External calibration capability using certified weights (e.g., Class M2 or better), supporting periodic verification and audit-ready documentation workflows.
• RS232C serial interface compliant with standard ASCII protocol, enabling direct communication with laboratory information management systems (LIMS), electronic notebooks, and ERP platforms without proprietary drivers.
• Dual-range tare functionality: full-capacity tare (up to 3100 g) and incremental tare for multi-step formulation workflows.
• Multi-unit conversion including grams (g), carats (ct), ounces (oz), troy ounces (ozt), and pounds (lb), configurable via front-panel keypad without software dependency.
• Counting mode with automatic sample weight averaging (n = 1–99 pieces) and statistical deviation reporting—validated per ISO 8655-5 for counting accuracy assessment.
• Zero-tracking function maintains baseline stability during extended idle periods, reducing manual re-zero interventions in high-throughput settings.

Sample Compatibility & Compliance

The JA31002 accommodates samples up to 3100 g on its 160 mm stainless steel weighing pan, suitable for bulk powders, granular solids, pre-weighed containers, and medium-volume liquid vessels (with appropriate secondary containment). It is not designed for volatile, corrosive, or static-prone materials without auxiliary shielding. The balance operates within metrological tolerances defined by ISO/IEC 17025:2017 Clause 6.4.3 for equipment suitability, and supports traceability through external calibration records aligned with ISO/IEC 17025 Clause 6.6. While not inherently 21 CFR Part 11 compliant (lacking electronic signature or audit trail firmware), its RS232C output permits integration into validated data acquisition systems meeting FDA regulatory expectations for paperless QC environments.

Software & Data Management

No proprietary software is bundled; instead, the JA31002 relies on industry-standard serial communication protocols. ASCII-formatted output includes timestamp (when enabled via host system), gross/net weight, unit code, and status flags (e.g., “STABLE”, “OVERLOAD”). This architecture ensures compatibility with open-source tools (e.g., Python pySerial scripts), commercial LIMS modules (LabWare, STARLIMS), and spreadsheet-based data logging. For GxP-regulated users, third-party middleware solutions can be deployed to add audit trails, user authentication layers, and electronic signature capture—transforming raw serial streams into ALCOA+ compliant records.

Applications

• Raw material receipt inspection in pharmaceutical excipient and nutraceutical manufacturing.
• Batch formulation checks in food processing facilities per ISO 22000 requirements.
• Student laboratory exercises in chemistry and biology curricula involving stoichiometric calculations and solution preparation.
• Inventory management of metal components, ceramics, or polymer pellets in industrial QA labs.
• Preparation of calibration standards for volumetric glassware verification (e.g., gravimetric determination of water density at 20 °C).
• Environmental monitoring sample weighing (soil, sediment, filter media) prior to ICP-MS or AAS analysis.

FAQ

Is the JA31002 suitable for USP or compliance?
No—it lacks internal calibration, temperature compensation, and documented uncertainty budgets required for pharmacopeial testing. It may serve as a support balance for non-critical weighing steps only.
Can it be connected to a USB port?
Not natively; an RS232-to-USB adapter (FTDI chipset recommended) is required, and driver configuration must preserve 9600 baud, 8N1 settings.
What is the recommended calibration frequency?
Per ISO/IEC 17025, calibration interval should be risk-assessed—but typical practice is daily zero check, weekly span verification, and annual full calibration by an accredited provider.
Does it support dynamic weighing (e.g., moving objects)?
No; the JA31002 is designed exclusively for static mass measurement. Dynamic or conveyor-based weighing requires dedicated industrial load cells.
Is the weighing pan removable for cleaning?
Yes—the stainless steel pan is secured by a single central screw and can be detached without tools for ultrasonic cleaning or sterilization.