Drick DRK-JA5003 Precision Electronic Balance (0.001 g readability, 500 g capacity)
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DRK-JA5003 |
| Instrument Type | Precision Balance |
| Capacity | 500 g |
| Readability | 0.001 g |
| Calibration Method | Automatic External Calibration |
| Max Capacity | 500 g |
| Measurement Range | 200–500 g |
Overview
The Drick DRK-JA5003 Precision Electronic Balance is an entry-level analytical-grade weighing instrument engineered for reproducible mass measurement in laboratory, quality control, and production environments where sub-milligram resolution is required but full analytical balance functionality (e.g., draft shield, internal calibration) is not mandated. It operates on electromagnetic force compensation (EMFC) principle — the industry-standard transduction method for high-stability precision balances — delivering consistent linearity and thermal drift compensation across its full 500 g range. With a readability of 0.001 g (1 mg), it meets the minimum performance threshold for ISO/IEC 17025-compliant weight verification procedures when used with certified Class F1 or Class M2 weights. Designed for routine daily use in regulated and non-regulated settings, the DRK-JA5003 features a robust aluminum alloy base, stainless-steel weighing pan (120 mm diameter), and front-panel key layout optimized for glove-compatible operation.
Key Features
- 0.001 g readability across full 500 g capacity — compliant with ASTM E898-22 and ISO 9001:2015 metrological requirements for intermediate-precision weighing tasks
- Automatic external calibration mode: initiates upon user command or scheduled interval; supports traceable calibration using standard weights (e.g., 100 g or 200 g Class F1)
- Full-range tare function: zeroing capability at any load up to 500 g, enabling sequential multi-sample weighing without manual reset
- Dual-range display interface: shows both gross weight and net weight simultaneously during tare operation
- RS232 serial interface standard — enables direct data transfer to LIMS, Excel, or custom QC software; optional USB-to-serial adapter available
- Stabilization time ≤ 2.5 s (typical) under ambient lab conditions (20–25 °C, <60 % RH, no air currents)
- Integrated overload protection: mechanical stop limits prevent sensor damage beyond 110 % of rated capacity
Sample Compatibility & Compliance
The DRK-JA5003 accommodates standard laboratory sample containers including weighing boats (polypropylene, aluminum), glass vials, petri dishes, and small-volume beakers. Its open-top design permits rapid placement and retrieval of samples without enclosure interference — ideal for high-throughput batch weighing in packaging QA, pharmaceutical raw material checks, and polymer additive dosing. The balance conforms to IEC 61000-4 electromagnetic compatibility standards and carries CE marking per EU Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). While not certified to OIML R76 or NIST Handbook 44 for legal-for-trade applications, it satisfies internal calibration and verification protocols referenced in USP , EP 2.1.6, and ISO/IEC 17025 Clause 6.4.3 for non-regulated and GLP-aligned workflows.
Software & Data Management
Data output follows ASCII-based serial protocol (9600 baud, 8N1, no flow control) compatible with generic terminal emulators and validated third-party data acquisition tools. Optional Drick BalanceLink™ software (v3.2+) provides audit-trail-enabled logging, customizable report templates (PDF/CSV), and timestamped calibration event records — supporting 21 CFR Part 11 compliance when deployed with Windows domain authentication and electronic signature modules. All weight data includes metadata: date/time stamp, operator ID (user-defined), balance ID, and calibration status flag (PASS/FAIL/EXPIRED). Internal memory retains up to 500 weight entries with auto-rollover.
Applications
- Raw material dosage verification in pharmaceutical excipient blending and tablet formulation
- Weight consistency testing of printed labels, laminated films, and corrugated board samples in packaging R&D
- Moisture content determination via gravimetric loss-on-drying (LOD) in food and polymer laboratories
- Standardized sample preparation for FTIR, XRF, and TGA analysis where ±1 mg repeatability is sufficient
- Calibration mass verification for pipette and volumetric flask validation programs
- QC release testing of textile yarn count, rubber compound batches, and ceramic slurry density standards
FAQ
What external calibration weights are recommended for the DRK-JA5003?
A certified 200 g Class F1 or Class M2 weight is optimal for full-span verification; a 100 g weight may be used for mid-range linearity check per ISO 17025 Clause 6.5.2.
Does the balance support internal calibration?
No — the DRK-JA5003 implements automatic external calibration only; no built-in reference mass is installed.
Can this balance be integrated into a GMP-compliant environment?
Yes, provided calibration is performed using traceable standards, records are retained per ALCOA+ principles, and software validation (if using BalanceLink™) is completed per Annex 11 guidelines.
Is the weighing pan removable for cleaning?
Yes — the stainless-steel pan is secured by two M3 screws and can be detached without tools; reinstallation requires no recalibration.
What is the temperature coefficient specification?
±2 × 10⁻⁶ / °C (typical), verified over 15–30 °C operating range; users should allow ≥30 min warm-up before critical measurements.
