Jihepu FBA-200-3 Intrinsically Safe Explosion-Proof Precision Balance
| Brand | Jihepu |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | FBA-200-3 |
| Instrument Type | Explosion-Proof Precision Balance |
| Maximum Capacity | 200 g |
| Readability | 1 mg (0.001 g) |
| Repeatability | ±0.001 g |
| Calibration | Automatic Internal Calibration |
| Protection Rating | Ex dⅡBT4 Gb |
| Compliance Standard | Q/BXCJ001-2015 |
Overview
The Jihepu FBA-200-3 Intrinsically Safe Explosion-Proof Precision Balance is an electromagnetically force-compensated analytical balance engineered for operation in hazardous environments where flammable gases, vapors, or combustible dusts may be present. Designed in strict accordance with the Chinese explosion-protection standard Q/BXCJ001-2015 and certified to the international flameproof enclosure classification Ex dⅡBT4 Gb, this balance integrates a hermetically sealed electromagnetic force sensor, reinforced stainless-steel load cell housing, and fully encapsulated electronics to prevent internal spark generation or thermal ignition under fault conditions. Its 200 g maximum capacity and 1 mg readability enable high-resolution mass determination in regulated production and quality control workflows—particularly where trace-level weighing of energetic materials must occur without compromising personnel safety or process integrity.
Key Features
- Flameproof enclosure (Ex dⅡBT4 Gb) certified for Zone 1/21 gas/dust environments—suitable for Class I, Division 1 hazardous locations per NEC/CEC equivalency
- Electromagnetic force restoration sensor with zero-drift compensation and temperature-stabilized feedback loop
- Automatic internal calibration triggered by time interval, temperature shift (>1.5 °C), or user command—traceable to NIST-traceable standards
- Stainless-steel draft shield assembly with removable side panels and anti-static coating for electrostatic discharge (ESD) mitigation
- IP65-rated front panel with sealed membrane keypad and corrosion-resistant aluminum housing
- Real-time overload and eccentric-load detection with audible/visual alert and automatic zero-hold suspension
Sample Compatibility & Compliance
The FBA-200-3 supports weighing of solid powders, granules, pressed pellets, and small metallic components—including propellants, initiators, pyrotechnic compositions, and insensitive munitions formulations. Its design conforms to the operational requirements of GB/T 27476.5–2014 (Explosion-Protected Equipment Safety Requirements) and aligns with functional safety principles outlined in IEC 60079-0 and IEC 60079-1. While not FDA 21 CFR Part 11–compliant out-of-the-box, audit-ready data logging (via optional RS232/USB interface) supports GLP/GMP-aligned record retention when integrated with validated laboratory information management systems (LIMS). The balance meets ISO/IEC 17025 metrological traceability requirements when used with accredited calibration services.
Software & Data Management
The embedded firmware supports configurable data output protocols (ASCII, MODBUS RTU) for direct integration into industrial SCADA or MES platforms. Optional PC software provides batch reporting, statistical process control (SPC) charts (X̄-R, Cpk), and electronic signature-enabled audit trails compliant with ALCOA+ data integrity principles. All weight records include timestamp, operator ID (if enabled), environmental temperature/humidity (when connected to external sensors), and calibration status flags. Raw data export is available in CSV or XML format with no proprietary encryption—enabling third-party validation and long-term archival.
Applications
- Weighing of explosive formulations (e.g., RDX, HMX, PETN) during mixing, pressing, and lot sampling in ordnance manufacturing
- Quality assurance of detonator and primer charge masses in ammunition assembly lines
- Calibration mass verification and reference standard handling in metrology labs located within classified facilities
- In-process weighing of composite solid rocket propellants during casting and curing stages
- Batch release testing of commercial blasting agents under national civil explosives regulatory frameworks
FAQ
What does Ex dⅡBT4 Gb certification signify?
It indicates flameproof enclosure protection for Group II (non-mining) equipment, Class B gas group (e.g., ethylene), temperature class T4 (surface temp ≤135 °C), and equipment protection level (EPL) Gb—suitable for Zone 1 gas atmospheres.
Is external calibration required after installation?
No—internal automatic calibration satisfies routine verification; however, annual third-party calibration against certified weights (Class E2 or better) is recommended per ISO/IEC 17025.
Can the balance interface with PLC-based production systems?
Yes—RS232 and optional analog 4–20 mA output support real-time weight streaming and trigger-based tare/zero commands in automated filling or dispensing cells.
Does it meet ATEX directives?
Not natively—ATEX compliance requires EU-type examination certificate and CE marking under Directive 2014/34/EU; this model is certified under China’s mandatory explosion-protection regime only.
What maintenance intervals are recommended?
Daily visual inspection of enclosure integrity, weekly cleaning with non-flammable solvent, and biannual verification of grounding resistance (<10 Ω) per GB 50169.
