SHYP JA3003B Precision Analytical Balance
| Brand | SHYP |
|---|---|
| Origin | Shanghai, China |
| Model | JA3003B |
| Instrument Type | Precision Balance |
| Maximum Capacity | 300 g |
| Readability | 1 mg |
| Calibration | External |
| Pan Diameter | 80 mm |
| Net Weight | 6.8 kg |
| Dimensions (W×D×H) | 350 × 215 × 340 mm |
| Packaging Dimensions | 480 × 375 × 515 mm |
| Compliance | Designed for GLP-compliant environments |
| Interface | RS232C serial port |
| Key Features | Electromagnetic force compensation sensor, draft shield with five-sided transparent glass, backlit LCD display, internal below-balance hook, auto fault detection, four-point linear calibration, overload protection, piece counting, unit conversion (carat, troy ounce), zero-tracking, full-range tare |
Overview
The SHYP JA3003B Precision Analytical Balance is an electromagnetic force compensation-based weighing instrument engineered for high reproducibility and stability in routine laboratory and quality control applications. Operating on the principle of magnetic force restoration—where coil current is dynamically adjusted to counteract sample weight—the JA3003B delivers consistent 1 mg readability across its full 300 g capacity range. Its design adheres to fundamental metrological requirements for precision balances, including thermal drift mitigation via optimized sensor housing and mechanical isolation from ambient vibration through a rigid base and adjustable leveling feet. The balance is intended for use in controlled environments where temperature fluctuations remain within ±2 °C and relative humidity stays below 80 % RH non-condensing—conditions aligned with ISO 9001 and ASTM E1223 guidelines for analytical balance validation.
Key Features
- Electromagnetic force compensation transducer ensuring long-term linearity and minimal hysteresis
- Five-sided transparent glass draft shield for rapid stabilization and unobstructed sample visibility during weighing
- Backlit monochrome LCD display (128 × 64 pixels) with adjustable contrast for ergonomic viewing under varied lighting conditions
- Internal below-balance hook enabling density determination and suspended weighing without external fixtures
- Four-point linear calibration routine supporting traceable adjustment at 0 %, 30 %, 60 %, and 100 % of full scale using certified external weights
- Real-time overload protection circuitry preventing sensor damage during accidental overloading
- Automatic fault self-diagnosis at power-on and during operation, reporting error codes per ISO/IEC 17025 diagnostic conventions
- RS232C interface compliant with TIA/EIA-232-F physical layer specifications for bidirectional communication with PCs or label printers
Sample Compatibility & Compliance
The JA3003B accommodates standard laboratory samples up to 300 g, including powders, granules, solids, and small-volume liquids in containers. Its 80 mm diameter stainless steel weighing pan meets corrosion resistance requirements per ASTM B117 for repeated exposure to mild solvents and cleaning agents. The balance is suitable for use in environments governed by Good Laboratory Practice (GLP) and supports audit-ready documentation when paired with compliant data acquisition software. While not pre-certified to OIML R76 or NIST Handbook 44, its performance characteristics—including repeatability ≤ ±0.8 mg (2σ, n=10) and eccentricity error < ±1.5 mg—align with Class II precision balance tolerances defined in EN 45501. It is not intended for use in hazardous locations or under continuous dynamic load conditions.
Software & Data Management
The built-in RS232C interface enables direct ASCII data streaming to host systems using standard protocols (e.g., XON/XOFF flow control, 9600 baud, 8N1). When connected to validated third-party software (e.g., LabX Lite or custom Python/Node.js scripts), the balance supports timestamped weight logging, CSV export, and basic statistical reporting (mean, SD, CV%). Data integrity is preserved via hardware-level transmission checksums. For regulated environments requiring 21 CFR Part 11 compliance, integration must be performed using FDA-validated middleware that enforces user authentication, electronic signatures, and immutable audit trails—capabilities not embedded in the device firmware but achievable through external configuration.
Applications
- Raw material verification and formulation batching in pharmaceutical and nutraceutical manufacturing
- Sample preparation for HPLC, GC, and ICP-MS analysis where mass accuracy directly impacts quantitation reliability
- Calibration of volumetric glassware per USP and ISO/IEC 17025 clause 6.4.7
- Quality assurance testing of components in electronics and precision machining sectors
- Academic teaching labs conducting stoichiometric experiments, gravimetric analysis, and density measurements
- Environmental testing labs performing filter weighing for particulate matter (PM2.5/PM10) analysis per EPA Method 201A
FAQ
What calibration weights are required for the JA3003B?
A certified Class M2 or better external weight set covering 0 g, 100 g, 200 g, and 300 g is recommended for full-range linear calibration.
Does the balance support internal calibration?
No—the JA3003B uses external calibration only; it does not include a motorized internal mass or temperature-compensated reference element.
Can the RS232 output be configured for continuous streaming?
Yes—using command “S” (Send), the balance transmits stabilized weight values at user-defined intervals (default: 1 Hz) in ASCII format.
Is the glass draft shield removable for cleaning?
Yes—the five-sided shield is tool-free detachable and compatible with isopropyl alcohol wipes and lint-free microfiber cloths.
What environmental conditions affect measurement stability?
Air currents >0.2 m/s, static charge buildup on samples, and temperature gradients >0.5 °C/hour across the weighing chamber may induce drift exceeding ±1 mg.
