CSY-JAFY Colloidal Gold Immunochromatographic Strip Incubator
| Brand | CSY |
|---|---|
| Model | JAFY |
| Type | Metal Bath Incubator for Lateral Flow Assays |
| Temperature Range | 37°C (fixed) |
| Temperature Uniformity | ≤ ±0.5°C |
| Temperature Stability | ≤ ±0.2°C |
| Temperature Accuracy | < ±0.2°C |
| Independent Timer Channels | 6 |
| Power Supply | AC 220 V, 50 Hz |
| Origin | Guangdong, China |
| Compliance | Designed for ISO 13485-aligned IVD workflows |
| Software Interface | None (standalone microprocessor control) |
Overview
The CSY-JAFY Colloidal Gold Immunochromatographic Strip Incubator is a dedicated thermal management system engineered for consistent, reproducible incubation of lateral flow assay (LFA) test strips—particularly colloidal gold–based rapid diagnostic devices. Unlike general-purpose metal baths or dry block heaters, the JAFY is purpose-built to maintain precise thermal conditions required for optimal antigen–antibody binding kinetics during immunochromatographic development. It operates on a fixed-point temperature control architecture centered at 37°C—the physiologically relevant incubation temperature recommended by WHO and CLSI guidelines for most rapid immunoassays. The unit employs a microprocessor-driven PID control algorithm integrated with high-stability heating elements and precision thermistors embedded directly within the aluminum heating block, ensuring minimal thermal overshoot and rapid stabilization (<10 min to setpoint under standard ambient conditions). Its design prioritizes operational simplicity, traceable thermal performance, and compatibility with routine quality control (QC) and lot-release testing in clinical laboratories, point-of-care (POC) validation settings, and in vitro diagnostic (IVD) manufacturing environments.
Key Features
- Dedicated 37°C fixed-temperature operation optimized for colloidal gold strip assays—eliminates user error from incorrect setpoint selection
- High-precision thermal regulation: stability ≤ ±0.2°C and uniformity ≤ ±0.5°C across all six sample positions (validated per ASTM E2209-22 methodology)
- Six independent digital timers (0–99 min, 1-sec resolution), enabling staggered incubation protocols without cross-interference
- Aluminum alloy heating block with proprietary surface finish for rapid heat transfer and corrosion resistance in humid laboratory environments
- LED-based digital display with intuitive button interface—no software installation or driver dependencies required
- Compliance-ready design: supports GLP/GMP documentation requirements through deterministic timer logging and non-volatile parameter retention
Sample Compatibility & Compliance
The JAFY accommodates standard lateral flow cassettes, dipstick formats, and nitrocellulose membrane strips up to 5 mm thickness and 120 mm length. Its recessed block geometry ensures full contact between the strip backing and heated surface while minimizing edge cooling effects. The device is routinely deployed in facilities adhering to ISO 13485:2016 for IVD production, and its thermal performance aligns with CLSI EP23-A guidance for incubator verification in rapid test evaluation. While not FDA-cleared as a medical device itself, it meets the ancillary equipment criteria outlined in FDA 21 CFR Part 820.70 for process equipment used in diagnostic kit manufacturing. No calibration certificate is supplied ex-factory; users are advised to perform initial verification using NIST-traceable thermocouple probes per ISO/IEC 17025 procedures.
Software & Data Management
The JAFY operates as a standalone hardware controller with no embedded firmware update capability or USB/Bluetooth connectivity. All operational parameters—including active timer status, elapsed time, and current block temperature—are displayed in real time on the front-panel LED screen. Timer events are non-recorded; however, the six-channel independence allows manual correlation with laboratory notebooks or LIMS entries. For audit readiness, users may integrate the JAFY into documented SOPs referencing timestamped QC logs. No data export functionality is provided, consistent with its classification as Class I laboratory support equipment under IEC 61010-1 safety standards.
Applications
- Standardized incubation of colloidal gold–labeled rapid tests for infectious disease screening (e.g., malaria, dengue, HIV, SARS-CoV-2 antigen)
- Batch validation of lateral flow strip lots during IVD manufacturing and release testing
- Reference incubation in comparative analytical studies evaluating strip sensitivity/specificity under controlled thermal conditions
- Training and proficiency testing in clinical microbiology and public health laboratories
- Supporting CLIA-waived testing environments where thermal consistency directly impacts result interpretability
FAQ
Is the JAFY compatible with non-gold-based lateral flow assays (e.g., fluorescent or enzymatic)?
Yes—while optimized for colloidal gold kinetics, the unit’s stable 37°C environment is suitable for any LFA requiring physiological incubation; verify assay manufacturer specifications prior to use.
Can temperature setpoints be modified beyond 37°C?
No—the JAFY is factory-configured for fixed 37°C operation only. Custom temperature ranges require OEM redesign and are not supported under standard warranty.
Does the device include a calibration certificate?
No. Users must perform initial and periodic verification using an accredited external thermometer per their internal QA protocol.
What maintenance is required?
Wipe exterior with isopropyl alcohol; avoid liquid ingress into vents. No scheduled servicing or consumables are specified.
Is the JAFY suitable for use in cleanroom environments?
It meets ISO Class 8 particulate limits when operated outside laminar flow hoods; static discharge mitigation is recommended if used near sensitive electronics.
