Jade Analytical JA1003/JA2003/JA3003/JA4003/JA5003 Precision 0.001 g Electronic Analytical Balance

Overview

The Jade Analytical JA1003/JA2003/JA3003/JA4003/JA5003 series represents a class of high-stability, microprocessor-controlled analytical balances engineered for precision mass measurement in regulated and non-regulated laboratory environments. These instruments operate on electromagnetic force compensation (EMFC) principle—where the downward gravitational force exerted by a sample is counterbalanced by an upward electromagnetic force generated within a precision coil system. The resulting current required to maintain equilibrium is linearly proportional to mass and digitally converted to a stable, drift-compensated reading. With a consistent readability of 1 mg across all models (ranging from 100 g to 500 g capacity), these balances meet the performance requirements for routine QC testing, formulation verification, sample preparation, and educational applications where ISO/IEC 17025-compliant weighing is not mandated but reproducibility and operational robustness remain critical.

Key Features

• Electromagnetic force compensation (EMFC) sensor architecture—eliminates mechanical hysteresis and creep inherent in strain-gauge-based systems
• Backlit LCD display with user-adjustable contrast for optimal readability under varied ambient lighting conditions
• Integrated draft shield with five-sided tempered glass enclosure (198 × 225 × 240 mm) ensuring minimal airflow disturbance and unobstructed visual access during weighing
• Four-stage shock absorption system coupled with dynamic temperature compensation algorithm to mitigate thermal drift and floor vibration effects
• Adjustable weighing speed settings (fast/standard/sensitive) to optimize response time versus stability trade-offs per sample type
• Built-in below-balance hook for density determination and suspended weighing applications
• Full-range tare functionality with auto-zero tracking and programmable zero-tracking threshold
• Overload protection circuitry with audible and visual alert upon exceeding maximum capacity
• Multi-unit conversion including grams (g), ounces (oz), carats (ct), and grains (gr)—all traceable to SI base units

Sample Compatibility & Compliance

The JA-series balances accommodate a broad spectrum of sample forms—including powders, granules, liquids in tared vessels, and small solid components—without requiring specialized accessories beyond standard stainless-steel weighing pans (Φ110 mm). All models comply with international metrological guidelines for Class II analytical balances per OIML R 76-1 and are suitable for use in environments aligned with GLP (Good Laboratory Practice) documentation workflows. While not certified to ISO 9001 or ISO/IEC 17025 out-of-the-box, the RS232 interface supports integration into validated data acquisition systems capable of meeting 21 CFR Part 11 audit trail requirements when paired with compliant software and procedural controls. Calibration routines include internal self-calibration (via built-in reference mass) and external calibration using NIST-traceable weights.

Software & Data Management

Data output is facilitated via standard RS232 serial protocol at configurable baud rates (9600–115200 bps), enabling direct transmission to PCs, LIMS, or statistical process control (SPC) platforms. The balance supports ASCII-formatted output with customizable prefixes, suffixes, and delimiters. Optional PC software (sold separately) provides real-time graphing, statistical analysis (mean, SD, CV%), batch logging, and export to CSV or Excel-compatible formats. All internal memory retains up to 100 weighing records with timestamp, gross/net/tare values, and unit identifiers—accessible via front-panel navigation without external connectivity.

Applications

• Quality control laboratories performing raw material verification and finished product release testing
• Academic teaching labs conducting stoichiometric experiments, solution preparation, and gravimetric analysis
• R&D departments engaged in catalyst loading, polymer blending, and pharmaceutical excipient dosing
• Environmental testing facilities measuring filter mass gain in particulate matter (PM₁₀/PM_2.5) analysis
• Food and agriculture labs executing moisture content determination via loss-on-drying protocols
• Manufacturing floor stations for component counting, filling validation, and packaging weight checks

FAQ

What calibration standards are recommended for routine verification?
NIST-traceable Class M2 or better weights are recommended for external calibration; internal self-calibration uses factory-installed reference masses verified at time of manufacture.
Is the balance compatible with Windows/macOS/Linux operating systems?
Yes—RS232 communication is OS-agnostic when used with terminal emulation software or custom drivers supporting standard serial protocols.
Can the draft shield be removed for large-sample weighing?
No—the five-sided glass shield is integral to mechanical stability and electromagnetic shielding; alternative configurations require dedicated heavy-duty or ultra-micro balance platforms.
Does the instrument support automatic calibration triggered by temperature change?
Yes—dynamic temperature compensation adjusts internal gain parameters in real time; however, full recalibration requires manual initiation or scheduled execution.
What is the warranty coverage and service support structure?
Standard 24-month limited warranty covers parts and labor; extended service plans and on-site calibration support are available through authorized regional distributors.