AND GF-10001A Precision Balance
| Brand | AND/A&D |
|---|---|
| Origin | Japan |
| Model | GF-10001A |
| Maximum Capacity | 10200 g |
| Readability | 0.1 g |
| Calibration | External |
| Repeatability | 0.1 g |
| Instrument Type | Precision Balance |
| Capacity Range | >5000 g |
Overview
The AND GF-10001A Precision Balance is an industrial-grade analytical weighing instrument engineered for high-reproducibility mass measurement in quality control laboratories, production environments, and R&D facilities requiring consistent performance at elevated capacity thresholds. Designed and manufactured in Japan under stringent ISO 9001-certified production protocols, this balance operates on electromagnetic force compensation (EMFC) principle—ensuring linearity, thermal stability, and long-term drift resistance across its full 10,200 g range. Unlike strain-gauge-based platforms, the EMFC sensor architecture delivers inherent immunity to mechanical hysteresis and load-point sensitivity, making it suitable for applications demanding traceable accuracy under variable environmental conditions (e.g., ambient temperature fluctuations between 10–30 °C and relative humidity ≤80 % RH non-condensing). Its compact low-profile chassis (212 × 317 × 93 mm) integrates a large 165 × 165 mm stainless steel weighing pan, optimized for voluminous samples, packaging containers, or multi-component assemblies without compromising center-of-gravity stability.
Key Features
- Electromagnetic force compensation (EMFC) transducer with auto-zero tracking and dynamic damping algorithm for <0.8 s stabilization at 500 g loads
- External calibration capability compliant with ISO/IEC 17025 metrological traceability requirements; supports standard weights certified to OIML R111 Class E2 or better
- Robust housing constructed from ABS polymer with reinforced base plate and anti-vibration feet—designed for installation on standard lab benches or industrial workstations without dedicated isolation tables
- Backlit LCD display with 20 mm digit height and dual-unit readout (g, oz, ct, dwt, grain, lb:oz), configurable via front-panel keypad
- Integrated RS-232 interface supporting ASCII protocol for direct data export to LIMS, Excel, or statistical process control (SPC) software; optional USB-to-serial adapter available
- Auto-power-off and auto-tare functions programmable via menu navigation; overload protection up to 150 % of maximum capacity
Sample Compatibility & Compliance
The GF-10001A accommodates heterogeneous sample forms—including powders in weigh boats, liquid-filled beakers, metal components on trays, and pre-packaged goods—without degradation in repeatability. Its wide pan geometry minimizes edge-loading error, while the draft shield-compatible design (sold separately) enables operation in semi-controlled environments. The instrument meets international regulatory expectations for non-automatic weighing instruments per OIML R76-1 (2021 edition) and satisfies essential requirements under the EU Measuring Instruments Directive (MID) Annex MI-001 for Class II precision balances. For GxP-regulated environments, firmware version 2.4+ supports audit trail logging (user ID, timestamp, weight value, tare event, calibration action) in alignment with FDA 21 CFR Part 11 principles when paired with validated data capture software.
Software & Data Management
Data acquisition is facilitated through bidirectional RS-232 communication using standard command sets (e.g., “SI” for stable weight query, “T” for tare). Third-party integration includes compatibility with LabWare LIMS, Thermo Fisher SampleManager, and custom Python/Node.js scripts leveraging pySerial or similar libraries. Optional AND WinCT-Balance software (v4.2+) provides real-time graphing, GLP-compliant report generation (PDF/CSV), batch weighing templates, and statistical summary (mean, SD, CV%, min/max) per user-defined session. All exported files retain embedded metadata: instrument ID, firmware revision, date/time stamp, operator code, and environmental log (if external温湿度 sensor is interfaced).
Applications
- Raw material receipt inspection in pharmaceutical excipient manufacturing (per USP and EP 2.1.3)
- Batch formulation verification for food additives, nutraceutical blends, and ceramic powder compaction processes
- In-process weight checks during tablet coating, capsule filling, and lyophilized vial stoppering operations
- Calibration laboratory support as a reference standard for verifying lower-capacity balances (up to 5 kg) per ISO/IEC 17025 clause 6.5.2
- Education and vocational training in metrology modules where hands-on exposure to Class II instrumentation is required
- Environmental testing labs performing soil/sediment dry-weight analysis per ASTM D2216 and EPA Method 1684
FAQ
What calibration standards are recommended for routine verification?
OIML R111 Class E2 stainless steel weights (e.g., 1 kg, 5 kg, and 10 kg sets) calibrated by an ILAC-MRA signatory laboratory are recommended for daily checks and periodic full-range verification.
Is internal calibration available on the GF-10001A?
No—this model is externally calibrated only. Internal calibration motors are omitted to maintain structural rigidity and thermal uniformity across the load cell assembly.
Can the balance operate continuously in a production cleanroom (ISO Class 7)?
Yes—provided ambient particulate levels remain within specification and no condensation occurs on the unit. The sealed keypad and vented enclosure meet IP42 ingress protection requirements.
Does the GF-10001A support dynamic weighing (e.g., animal or conveyor-mode operation)?
No—it is designed exclusively for static, stabilized mass measurement. Dynamic or motion-compensated weighing requires dedicated models such as the AND FX-i series.
How frequently should full-range linearity testing be performed?
Per ISO/IEC 17025 and internal QA protocols, linearity verification using at least five test points (0%, 20%, 40%, 60%, 80%, 100% of max capacity) is advised quarterly—or after any physical relocation or mechanical shock event.
