04,24,2026 130 views
This article presents a technical overview of theStat Fax® 4500Biochemistry Analyzermanufactured by Awareness Technology, Inc. (USA). Designed as a compact, standalone, programmable open‑system instrument, it integrates photometric detection, incubation, data processing, and on‑board printing to support routine clinical biochemistry testing in small‑to‑mid‑size laboratories, clinics, and point‑of‑care settings. Key performance characteristics, optical specifications, user interface design, software functions, mechanical features, and regulatory compliance are summarized to illustrate its reliability, accuracy, ease of use, and cost‑effectiveness.
1. Introduction
Awareness Technology, Inc. has specialized in laboratory diagnostic instrumentation since 1982, with a focus on ELISA processors, microplate washers, readers, and clinical chemistry analyzers. TheStat Fax 4500is a semi‑automated biochemistry analyzer engineered for stable, efficient, and user‑friendly operation. It supports endpoint and kinetic assays, accommodates multiple reaction vessels, and offers multilingual support to serve global clinical and research laboratories. Its compact footprint, robust optical system, and intuitive touchscreen interface make it suitable for routine biochemistry panels including liver, renal, cardiac, and metabolic function tests.
2. Core Product Features
- Standalone open‑system designwith no external PC required for daily operation.
- Built‑in 12‑position incubation blockmaintained at 37 °C for consistent reaction conditions.
- Integrated thermal dot‑matrix printerwith graphical output for immediate result documentation.
- High‑resolution 3.5‑inch color capacitive touchscreenwith smartphone‑like responsive graphical user interface for fast navigation and cleaning.
- Dual‑measurement compatibility: supports 12 mm round tubes, 1 cm square cuvettes, and optional flowcell.
- Multilingual support: English, Spanish, and Russian.
- Comprehensive data storage: up to 140 user‑programmable test protocols, 500 patient results, and 1000 quality control records.
3. Key Performance Advantages
3.1 Optical Performance & Stability
The instrument employs axenon‑halogen light sourcewith lamp‑saver function to extend service life. Itsbichromatic photometryminimizes interference and improves measurement stability, withdrift ≤0.005 A over 8 hours. The optical system usesIAD hard‑coat interference filters(10 nm half‑bandpass) at six standard wavelengths: 340, 405, 505, 545, 580, and 630 nm. Custom filter configurations are available from 340 to 700 nm, supporting up to eight positions.
3.2 High Accuracy & Linearity
- Linear photometric range:0.0–3.0 absorbance units (A)
- Photometric accuracy:±(1% + 0.010 A) from 0.0 to 1.5 A±(2% + 0.010 A) from 1.5 to 3.0 A
3.3 Rapid Throughput
The systemreads, calculates, and prints results in 3 seconds per tube, supporting high workflow efficiency in busy laboratories.
3.4 Flexible Calibration & Software Tools
- Single‑point calibration using standards or factors
- Multipoint calibration with point‑to‑point curve fitting
- Rate assays by standard or factor (single or batch mode)
- Built‑inLevey–Jennings quality controland real‑time kinetic plotting for enhanced analytical traceability
3.5 Compact, Robust, and Safe
- Dimensions: approximately 24 × 34 × 13 cm; weight 4.5 kg
- Flame‑retardant ABS plastic housing
- Universal power input: 110–240 VAC, 50/60 Hz
- Certified: NRTL listed, CE marked, manufactured under ISO 13485:2016 quality system
4. Technical Specifications Summary
| Parameter | Specification |
|---|---|
| Test Speed | 3 seconds per tube (read + calculate + print) |
| Linear Range | 0.0–3.0 A |
| Photometric Accuracy | ±(1% + 0.010 A) @ 0.0–1.5 A; ±(2% + 0.010 A) @ 1.5–3.0 A |
| Stability | Drift ≤0.005 A in 8 h (bichromatic) |
| Light Source | Xenon‑halogen with lamp saver |
| Standard Wavelengths | 340, 405, 505, 545, 580, 630 nm |
| Filter Type | IAD hardcoat interference, 10 nm half‑bandpass |
| Vessel Compatibility | 12 mm round tube; 1 cm square cuvette; optional flowcell |
| Min Sample Volume | 1 mL (12 mm tube); 250 μL (flowcell) |
| Display | 3.5‑inch color capacitive touch LCD |
| Incubation | 12‑station block, 37 °C |
| Printer | Integrated thermal dot matrix (graphic capable) |
| Power | 110–240 VAC, 50/60 Hz |
| Dimensions | ~24 × 34 × 13 cm |
| Weight | 4.5 kg |
| Certifications | NRTL, CE, ISO 13485:2016 |
5. Conclusion
TheStat Fax 4500 Biochemistry Analyzercombines compact design, reliable optics, intuitive operation, and strong data management in a standalone open system. With high photometric accuracy, long‑term stability, fast throughput, and broad assay compatibility, it provides a cost‑effective solution for clinical biochemistry testing. Backed by Awareness Technology’s decades of manufacturing experience and global service support, the instrument delivers consistent performance for laboratories seeking durability, simplicity, and regulatory compliance.
