LeFever BT100S (YZ15) Speed-Adjustable Peristaltic Pump

Overview

The LeFever BT100S (YZ15) Speed-Adjustable Peristaltic Pump is a precision-engineered laboratory-grade peristaltic pump designed for accurate, repeatable, and contamination-free fluid handling in analytical, bioprocessing, and quality control environments. Based on the principle of positive displacement via roller compression of elastomeric tubing, the BT100S delivers consistent volumetric flow without internal wetted surfaces—eliminating risk of cross-contamination, valve wear, or seal leakage. Its modular architecture supports interchangeable pump heads (YZ15, YZ25, DG-series), enabling flexible adaptation to diverse tubing diameters (ID 0.1–6.4 mm), viscosity ranges (up to ~10,000 cP), and application-specific flow requirements—from nanoliter-scale reagent dosing to high-throughput media transfer.

Key Features

• High-resolution speed control: 0.1 rpm resolution with ±0.5% accuracy across full 0.1–150 rpm range, ensuring reproducible flow delivery under varying backpressure conditions.
• Dual-mode operation: Manual keypad interface with dedicated keys for start/stop, forward/reverse direction, full-speed override, and power-loss memory retention—preserving last-used parameters after shutdown.
• Intuitive 4-digit LED display: Real-time rpm readout with high contrast and wide viewing angle, optimized for ambient lab lighting and glove-compatible operation.
• Rugged industrial enclosure: Stainless steel front panel and dust- and moisture-resistant PCB layout conform to IP31 ingress protection, supporting reliable use in ISO Class 7 cleanrooms and general-purpose QC labs.
• Standard RS485 serial interface compliant with MODBUS RTU protocol: Enables seamless integration into automated workflows, SCADA systems, or LIMS-controlled environments with configurable baud rates (9.6–115.2 kbps) and parity settings.
• “Quick Dispense” mode: A programmable volume-based dispensing function allowing single-button execution of preset dispense volumes—reducing operator variability and improving throughput in routine sample preparation or buffer dilution tasks.

Sample Compatibility & Compliance

The BT100S accommodates a broad spectrum of chemically compatible tubing materials—including silicone, Viton®, Tygon® LFL, PharMed® BPT, and C-Flex®—supporting applications involving aqueous buffers, organic solvents, cell culture media, and mildly aggressive reagents. When paired with certified tubing and validated pump head configurations, the system meets operational requirements aligned with ISO 8573-1 (compressed air purity), ASTM D3418 (viscoelastic characterization of polymers), and USP guidelines for analytical instrument qualification. While not inherently 21 CFR Part 11-compliant as a standalone device, its MODBUS-enabled data logging capability allows traceable parameter recording when integrated with compliant supervisory software featuring electronic signatures and audit trail functionality.

Software & Data Management

The pump operates autonomously without proprietary software; however, its RS485/MODBUS interface supports bidirectional communication with third-party control platforms such as LabVIEW, MATLAB, Python-based automation scripts (via PyModbus), or industrial PLCs. Users can remotely query real-time status (e.g., current rpm, direction, run state), set target speed or dispense volume, and trigger I/O events (e.g., pulse output upon completion). Firmware-level parameter storage ensures configuration persistence across power cycles—critical for GLP/GMP-aligned workflows requiring documented setup repeatability. Optional PC utilities (available from authorized distributors) provide GUI-based calibration logging, batch export of operation logs (.csv), and firmware update support.

Applications

• Automated liquid handling in HPLC mobile phase delivery, fraction collector triggering, and column washing protocols.
• Cell culture bioreactor feed/perfusion systems requiring gentle shear-sensitive media transfer.
• Environmental water analysis—continuous sampling and reagent addition in online analyzers or discrete auto-samplers.
• Pharmaceutical QC labs performing dissolution testing, standard solution preparation, or filter integrity test fluid delivery.
• Educational laboratories demonstrating fluid dynamics principles, flow calibration methods, and closed-loop process control fundamentals.

FAQ

What tubing sizes are supported by the YZ15 pump head?
The YZ15 head accommodates tubing inner diameters from 0.13 mm to 3.2 mm (e.g., Masterflex L/S 13, 14, 16, 17, 18), delivering optimal occlusion and service life at recommended compression settings.
Can the BT100S be used in sterile processing environments?
Yes—when equipped with gamma-sterilizable tubing (e.g., C-Flex® or PharMed® BPT) and operated within validated flow and pressure limits, it complies with ISO 13408-2 for aseptic processing equipment qualification.
Is calibration documentation provided with the instrument?
Factory calibration certificates (traceable to NIST standards) are available upon request; users may perform in-house verification using gravimetric flow measurement per ISO 5725-2.
Does the pump support analog input/output signals?
No—only digital RS485 communication is natively supported; external signal converters (e.g., RS485-to-4–20 mA) may be deployed for legacy analog integration.
What is the maximum allowable backpressure for continuous operation?
Maximum recommended backpressure is 0.2 MPa (2 bar) at 150 rpm with standard silicone tubing; performance varies with tubing material, wall thickness, and temperature—consult tubing manufacturer specifications for derating curves.