Chu Ding Technology DS100 Four-Channel Volumetric Peristaltic Filling System with Independent Flow Control

Overview

The Chu Ding Technology DS100 Four-Channel Volumetric Peristaltic Filling System is an engineered solution for precise, repeatable, and scalable liquid dispensing in laboratory, pilot-scale, and light industrial environments. Built upon the fundamental principle of peristaltic pumping—where rollers compress flexible tubing to displace fluid without contact between the pump mechanism and the liquid—the DS100 delivers volumetric accuracy through calibrated rotational control rather than pressure-based or gravimetric feedback. Each of its four independently addressable channels operates with dedicated motor control, enabling asynchronous filling across multiple vessels with identical or variable target volumes. Designed for integration into automated workflows, the system supports both standalone operation via its integrated color touchscreen interface and synchronized control via external PLC or PC-based software through standardized digital I/O signals. Its 304 stainless steel chassis ensures structural integrity and resistance to common laboratory solvents, weak acids, and alkaline solutions—making it suitable for routine use in QC labs, bioprocessing support, reagent preparation, and pharmaceutical secondary packaging validation studies.

Key Features

• Four fully independent peristaltic channels with individual speed and timing control—no cross-channel interference or shared drive coupling.
• High-resolution motor control: 0.1 rpm speed resolution and adjustable fill time from 0.1 to 99.99 seconds per cycle, supporting fine-tuned flow rate adaptation over tubing lifetime.
• Integrated intelligent calibration routine that automatically correlates rotational speed, tubing ID, and fill volume—reducing manual setup time and minimizing operator-induced variability.
• Modular scalability: Systems can be daisy-chained via RS485 or digital I/O to form 8-, 12-, or higher-channel configurations while retaining per-channel programmability and status monitoring.
• Robust 304 stainless steel enclosure with conformal-coated PCBs (triple-layer moisture, dust, and corrosion protection), rated IP31 for operation in controlled but non-sterile lab environments.
• Dual-mode operation: Standalone mode with full touchscreen HMI; or networked mode with external start/stop triggers and bottle-absence detection inputs compliant with standard bottle conveyor interfaces.

Sample Compatibility & Compliance

The DS100 accommodates a broad range of aqueous, viscous, and mildly aggressive liquids—including buffers, cell culture media, enzyme solutions, and low-concentration organic solvents—provided compatible tubing (e.g., PharmPure® silicone, Tygon® LFL, or Norprene® A-60-F) is selected per chemical exposure guidelines. It supports tubing IDs from 0.5 mm (#13) to 3.2 mm (#25), with YZ15 and YZ25 pump heads optimized for low- to medium-viscosity fluids up to ~500 cP. While not certified for GMP manufacturing use out-of-the-box, the system’s deterministic flow behavior, traceable calibration logs, and configurable audit trail (via optional serial logging) align with foundational GLP documentation requirements. Its electrical design complies with IEC 61000-6-3 (EMI emission) and IEC 61000-6-2 (immunity), and the enclosure meets mechanical safety standards per IEC 61000-6-4. For regulated environments, users may implement procedural controls—including daily volumetric verification per USP , periodic pump head torque validation, and soft-tubing replacement schedules—to satisfy internal QA protocols.

Software & Data Management

The DS100 features an embedded 7-inch capacitive color touchscreen HMI running a deterministic real-time OS. All operational parameters—including target volume, fill duration, ramp-up/down profiles, and channel enable/disable states—are stored in non-volatile memory with timestamped change history. The interface supports user-defined presets (up to 99 programs), password-protected parameter editing, and on-screen error diagnostics (e.g., tubing occlusion, motor stall, or sensor timeout). Optional RS232/RS485 communication enables ASCII command protocol integration with LabVIEW, Python, or custom MES platforms. When connected to a host PC, the system can export CSV-formatted operation logs—including actual dispensed volume (calculated from speed/time), elapsed cycle count, and fault events—for inclusion in electronic batch records. Though not natively 21 CFR Part 11 compliant, the architecture supports third-party digital signature and audit trail add-ons when deployed within validated IT infrastructure.

Applications

• Preparation of standardized sample aliquots for HPLC, GC, or spectrophotometric analysis.
• Automated filling of microtiter plates, vials, or tubes during assay development or stability testing.
• Buffer and media dispensing in upstream bioprocessing support labs.
• Calibration standard preparation requiring sub-milliliter precision across replicate containers.
• Integration into semi-automated packaging lines for diagnostic kit assembly or reagent kit manufacturing.
• Teaching laboratories demonstrating volumetric transfer principles, pump mechanics, and process control fundamentals.

FAQ

What tubing sizes are supported, and how does tubing selection affect accuracy?
The DS100 supports tubing inner diameters from 0.5 mm (#13) to 3.2 mm (#25) using YZ15 or YZ25 pump heads. Accuracy depends critically on consistent wall thickness, elasticity, and compression recovery—users must validate tubing batches per ASTM D2240 hardness and replace tubing at defined cycle intervals to maintain ±0.5% repeatability.
Can the DS100 operate in continuous-flow mode, or is it strictly batch-oriented?
It is designed for discrete-volume dispensing with programmable start/stop timing. Continuous flow is not supported; however, rapid sequential cycles (e.g., 0.5 s fill + 0.2 s pause) can simulate quasi-continuous delivery for low-throughput applications.
Is firmware update capability available, and how is version control managed?
Firmware updates are delivered via USB flash drive with checksum-verified binaries. Each unit logs firmware version, installation timestamp, and user ID in its internal audit buffer—accessible via HMI or serial dump.
Does the system include validation documentation or IQ/OQ templates?
No factory-issued validation documents are provided. However, the technical specifications, electrical schematics, and calibration methodology are supplied in English, enabling qualified users to develop site-specific IQ/OQ protocols aligned with ISO 13485 or ISO 9001 frameworks.
How is “bottle-absence” detection implemented, and what interface standards does it follow?
Detection uses opto-interrupter or proximity sensor input (NPN/PNP configurable) wired to dedicated terminals. The signal follows standard 24 VDC dry-contact logic: open circuit = run; closed circuit = immediate stop-fill and visual alarm—compatible with most OEM conveyor controllers.