Jiapeng CBS-B Programmable Automatic Fraction Collector with LCD Display
| Brand | Jiapeng |
|---|---|
| Origin | Shanghai, China |
| Model | CBS-B |
| Instrument Type | Liquid-Phase Fraction Collector |
| Collection Modes | Time-Based, Drop-Based, Peak-Based, Programmable Control |
| Tube Capacity | 100 × 12 mL (standard), optional trays: 16 × 100 mL, 36 × 50 mL, 169 × 5 mL |
| Timing Range | 1 s – 999 h 59 min 59 s |
| Drop Counting Range | 1–999 drops |
| Peak Threshold Range | 1–200 mV |
| Programmable Segments | 1–10 |
| Movement Mechanism | Suspended X-Y Positioning |
| Valve Type | 12 V DC Solenoid |
| Power Supply | AC 220 V, 50/60 Hz |
| Dimensions (W×D×H) | 345 × 360 × 270 mm |
| Weight | 14 kg |
| Data Retention | ≥10 years after power loss |
| Continuous Operation | >200 hours |
| Compliance | Designed for GLP-compliant chromatography workflows |
Overview
The Jiapeng CBS-B Programmable Automatic Fraction Collector is a precision-engineered liquid-phase fraction collection system designed for mid- to low-pressure preparative chromatography applications. It operates on the principle of synchronized signal-triggered tube switching—accepting analog voltage inputs (e.g., from UV detectors) or user-defined time/drop thresholds—to direct eluent fractions into discrete collection vessels. Its suspended X-Y mechanical architecture ensures repeatable, low-vibration positioning across standardized tube racks, minimizing cross-contamination risk and supporting reproducible fraction isolation in biomolecule purification, natural product isolation, and synthetic intermediate recovery workflows.
Key Features
- Suspended X-Y positioning mechanism with stepper motor control for precise, quiet, and wear-resistant tube alignment
- Large-format blue-backlit Chinese-language LCD display with intuitive menu navigation—no English language dependency required for local lab operation
- Ergonomic 65° inclined control panel design optimized for seated or standing operator interaction without stooping
- Electrical isolation between fluid path and control circuitry—enhancing safety and long-term reliability during extended runs
- Integrated waste trough with automatic three-way valve routing for seamless diversion of non-collected effluent
- Non-volatile memory retaining up to 10 independent collection programs and all configuration settings for ≥10 years post-power-loss
- Modular tray compatibility: accepts 16-tube (100 mL), 36-tube (50 mL), 100-tube (12 mL), and 169-tube (5 mL) configurations—enabling flexible method scaling
- 12 V DC solenoid valve actuation ensures stable, low-heat switching performance across continuous operation (>200 hours)
Sample Compatibility & Compliance
The CBS-B is chemically compatible with aqueous buffers, alcohols, acetone, ethyl acetate, and other common chromatographic solvents (optional corrosion-resistant wetted materials available upon request). It interfaces natively with analog-output UV-Vis, conductivity, and refractive index detectors via standard 0–1 V, 0–5 V, or 0–10 V input channels. While not certified to IEC 61010-1 or UL 61010B as a standalone safety-certified instrument, its electrical architecture conforms to general laboratory equipment safety expectations for Class I, overvoltage Category II environments. The device supports documentation practices aligned with GLP and basic GMP requirements—including timestamped program logging and manual record linkage—though it does not implement FDA 21 CFR Part 11 electronic signature or audit trail functionality.
Software & Data Management
Operation is fully menu-driven via the onboard microcontroller interface—no external PC or proprietary software required. Each of the 10 programmable segments allows independent specification of collection trigger mode (time, drop count, or analog voltage threshold), dwell duration, tube index offset, and waste routing behavior. All parameters are stored in EEPROM with battery-backed retention. Real-time status indicators include elapsed time, current tube number, active segment ID, and input signal level (mV). Data export is manual (visual readout + handwritten log), making the CBS-B especially suitable for resource-constrained labs, teaching facilities, and QC environments where simplicity and traceability—not automation integration—are primary objectives.
Applications
- Preparative column chromatography for protein, peptide, and nucleic acid purification
- Isolation of bioactive compounds from plant extracts and fermentation broths
- Fractionation of reaction mixtures in organic synthesis scale-up
- Quality control sampling in pharmaceutical intermediate manufacturing
- Teaching laboratories conducting hands-on chromatography methodology training
- Method development for HPLC and flash chromatography systems requiring offline fraction analysis
FAQ
What types of detectors can be connected to the CBS-B?
The CBS-B accepts analog voltage outputs (0–1 V, 0–5 V, or 0–10 V) from most commercially available UV-Vis, conductivity, and refractive index detectors.
Does the CBS-B support USB or Ethernet connectivity?
No—it is a standalone, microcontroller-based instrument with no digital communication ports. All configuration and monitoring occur via the front-panel LCD interface.
Can the CBS-B be used with high-pressure HPLC systems?
It is rated for low- to mid-pressure applications (≤5 bar typical). For UHPLC or high-flow HPLC systems, a pressure-regulating flow splitter or backpressure regulator must be installed upstream.
Is calibration required before use?
No factory calibration is needed. Users verify timing accuracy using a stopwatch and confirm drop-counting sensitivity by adjusting the threshold against a calibrated peristaltic pump output.
What maintenance is recommended for long-term reliability?
Periodic cleaning of the tube rack guide rails and solenoid valve orifice with isopropanol; inspection of tubing integrity every 6 months; replacement of silicone tubing every 12–18 months depending on solvent exposure.
