Shanghai-Made FA Series Precision Electronic Analytical Balance
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | FA1004, FA1104, FA1604, FA2004, FA2104, FA2104S, FC104, FC204, JA5003 |
| Capacity | 100–500 g |
| Readability | 0.0001 g (models FA/FC series), 0.001 g (JA5003) |
| Repeatability | ≤ ±0.0001 g (FA/FC), ≤ ±0.001 g (JA5003) |
| Linearity | ≤ ±0.0002 g (FA/FC), ≤ ±0.002 g (JA5003) |
| Pan Diameter | Φ90 mm (FA/FC), Φ125 mm (JA5003) |
Overview
The Shanghai-made FA Series Precision Electronic Analytical Balance is a high-accuracy mass measurement instrument engineered for laboratory environments requiring consistent repeatability and traceable calibration. Based on electromagnetic force compensation (EMFC) transduction technology, these balances deliver stable, drift-compensated readings under controlled ambient conditions (20 ± 2 °C, 45–60% RH). Designed to meet fundamental metrological requirements for analytical weighing in QC labs, research institutes, and pharmaceutical production facilities, the FA Series complies with international reference standards including OIML R76-1 (2021), ISO 9001:2015, and supports alignment with USP , EP 2.1.1, and ASTM E898–22 for balance performance verification. Each unit undergoes factory calibration using certified Class E2 or F1 weights traceable to NIM (National Institute of Metrology, China) and includes a full calibration certificate upon request.
Key Features
- Electromagnetic force compensation sensor architecture with automatic internal calibration (AutoCal™) available on select FA models (e.g., FA2104S) — enables recalibration triggered by temperature drift or time interval
- High-resolution LCD display with backlight and intuitive soft-key interface supporting multiple weighing units (g, mg, ct, oz, lb, %, pcs)
- Stainless steel weighing pan (Φ90 mm standard; Φ125 mm on JA5003) mounted on a rigid, vibration-damped base to minimize environmental interference
- RS232 and optional USB interfaces compliant with standard serial communication protocols for seamless integration with LIMS or ERP systems
- Overload protection up to 150% of nominal capacity and auto-zero tracking function ensuring baseline stability during extended operation
- Internal memory storing up to 1000 data points with timestamp, operator ID, and gross/net/tare flags — exportable via serial output
Sample Compatibility & Compliance
These balances accommodate a broad range of sample types including powders, granules, liquids (in tared containers), and small solid specimens typical in chemistry, pharmacology, and materials science workflows. The open pan design allows compatibility with standard weighing boats, crucibles, and volumetric flasks. All models are CE-marked and conform to IEC 61000-6-3 (EMC emission) and IEC 61000-6-2 (immunity) standards. For regulated environments, the FA Series supports GLP/GMP documentation practices: audit trails (via external software), user access control (when paired with compliant weighing software), and calibration log retention. While not inherently 21 CFR Part 11 compliant out-of-the-box, the balances provide the foundational data integrity features required for validation — including immutable timestamps, non-editable raw data streams, and hardware-level calibration lockout options.
Software & Data Management
The FA Series communicates natively with industry-standard weighing software platforms such as A&D WinCT, Mettler Toledo LabX (via generic ASCII mode), or custom-developed applications using standard RS232 ASCII protocol (baud rate 9600, 8N1). Data output includes weight value, stability flag, unit code, and time stamp in real time. Optional PC connectivity kits include USB-to-RS232 adapters and driver-certified cables. For laboratories implementing electronic records, raw serial logs can be parsed into CSV or Excel formats for archiving in validated document management systems. Firmware updates (where applicable) are delivered via secure manufacturer portal and require physical USB key authentication to maintain configuration integrity.
Applications
- Quantitative gravimetric analysis in analytical chemistry (e.g., preparation of standard solutions, titrant standardization)
- Weighing of active pharmaceutical ingredients (APIs) and excipients during formulation development and batch release testing
- Residue-on-ignition (ROI) and loss-on-drying (LOD) determinations per USP and Ph. Eur. 2.2.32
- Sample preparation for ICP-MS, HPLC, and GC-MS where sub-milligram accuracy is critical
- Calibration of pipettes and volumetric glassware using gravimetric methods (ISO 8655-6)
- Educational use in university teaching labs for metrology fundamentals and uncertainty propagation exercises
FAQ
What calibration standards are used during factory certification?
Each balance is calibrated using NIM-traceable Class E2 stainless steel weights (for 0.0001 g readability models) or Class F1 weights (for 0.001 g models), with full uncertainty budgets documented per ISO/IEC 17025 principles.
Is internal calibration available across all FA Series models?
Internal motorized calibration is standard on FA2104S and optional on FA2004/FA2104 upon configuration; FA1004/FA1104/FA1604 rely on external calibration with included weight set.
Can the balance be integrated into a networked lab environment?
Yes — via RS232 serial connection to a dedicated terminal server or industrial PC; Ethernet or Wi-Fi capability requires third-party gateway hardware and is not embedded.
Does the balance support dynamic weighing or animal weighing modes?
No — the FA Series is optimized for static, stable-sample weighing only; it does not include filtering algorithms for unstable loads or motion compensation.
What is the recommended warm-up time before first use?
Minimum 30 minutes at stable room temperature (20 ± 2 °C); optimal performance is achieved after 60 minutes of continuous power-on prior to critical measurements.
