SHYP JA1003B Precision Balance

Overview

The SHYP JA1003B Precision Balance is a high-reliability electromagnetic force compensation balance engineered for routine analytical and quality control tasks in laboratories, educational institutions, and production environments. Operating on the principle of electromagnetic force restoration, the instrument achieves stable, drift-free weighing by dynamically balancing the gravitational load on the pan with a precisely controlled electromagnetic field—ensuring consistent repeatability and long-term stability without mechanical wear. With a maximum capacity of 100 g and a readability of 1 mg (0.001 g), it meets the performance requirements for Class II precision balances per OIML R76 and ISO 9001 calibration traceability frameworks. Its compact footprint and robust metal housing support integration into fume hoods, clean benches, and regulated manufacturing spaces where space efficiency and operational integrity are critical.

Key Features

• Electromagnetic force compensation sensor technology delivering high linearity, low temperature drift, and exceptional long-term stability
• Five-sided transparent glass draft shield with optimized airflow geometry to minimize convection-induced measurement noise
• Backlit LCD display (128 × 64 pixels) with adjustable contrast for clear readability under varied ambient lighting conditions
• Internal lower hook assembly enabling below-balance weighing applications—including density determination and magnetic susceptibility analysis
• Automatic fault diagnostics and self-monitoring routines that verify sensor integrity, zero-point stability, and overload status at power-on and during operation
• Four-point linear calibration routine supporting external weights traceable to NIST or equivalent national metrology institutes
• Overload protection circuitry preventing sensor damage up to 150% of rated capacity
• RS232C serial interface compliant with standard ASCII protocol for direct connection to PCs, thermal printers, or LIMS systems

Sample Compatibility & Compliance

The JA1003B accommodates samples up to 100 g on its 80 mm diameter stainless-steel weighing pan, compatible with standard weighing boats, crucibles, filter papers, and small-volume containers. Its draft shield design conforms to ISO 17025 environmental requirements for controlled weighing zones, minimizing air current interference while permitting unobstructed visual monitoring. The balance supports documentation workflows aligned with Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP) standards—including user-defined ID entry, time-stamped weight logging, and audit-ready output via RS232. While not certified to FDA 21 CFR Part 11 out-of-the-box, its deterministic data output and non-volatile memory enable validated integration into regulated systems when paired with compliant software platforms.

Software & Data Management

Data acquisition is facilitated through native ASCII-based RS232 communication using standard baud rates (9600/19200 bps). No proprietary drivers are required; the balance transmits stabilized weight values, unit identifiers (g, ct, oz t, etc.), and status flags (e.g., “STABLE”, “OVERLOAD”) in real time. Integration with Excel, LabVIEW, or custom Python scripts is straightforward using serial terminal emulation or PySerial libraries. Optional third-party middleware solutions provide automated data capture, statistical process control (SPC) charting, and electronic signature support for regulated environments. Internal memory retains calibration history and configuration settings across power cycles, ensuring continuity during scheduled maintenance intervals.

Applications

• Quantitative sample preparation in pharmaceutical QC labs (e.g., active ingredient dispensing, excipient ratio verification)
• Calibration of volumetric glassware per ASTM E542 and ISO 4787
• Gravimetric analysis including ash content, moisture loss on drying (LOD), and residue-on-ignition (ROI)
• Education: Fundamental mass measurement experiments in undergraduate chemistry and materials science curricula
• Manufacturing: Component counting, batch reconciliation, and raw material receipt inspection
• Density determination of solids and liquids using sinker methods per ISO 1183

FAQ

What calibration weights are required for the JA1003B?
A single 100 g Class M2 or better external weight, certified and traceable to national standards, is sufficient for full-range linear calibration.
Is internal calibration available?
No—the JA1003B uses external calibration only, which enhances transparency and facilitates third-party verification in audited environments.
Can the balance operate on battery power?
No—it requires continuous AC power via the included adapter; no internal battery option is provided.
Does it support automatic tare or zero-tracking functions?
Yes—zero-tracking adjusts the zero point automatically within ±2 mg drift range; full-range tare is supported before or after sample placement.
What is the warm-up time for optimal accuracy?
Minimum 30 minutes at stable ambient temperature (20–25 °C, <60% RH) is recommended prior to critical measurements.