LeadFluid BT103S Variable-Speed Peristaltic Pump

Overview

The LeadFluid BT103S Variable-Speed Peristaltic Pump is an industrial-grade laboratory peristaltic pump engineered for precise, repeatable, and contamination-free fluid handling in analytical, bioprocessing, and quality control environments. Based on the positive displacement principle of peristalsis—where rollers compress a flexible tubing against a rigid housing to generate unidirectional flow—the BT103S delivers highly accurate volumetric transfer without internal wetted parts, eliminating cross-contamination risks and simplifying cleaning validation. Its design adheres to core engineering requirements for regulated laboratories: stable speed control under variable load conditions, robust electrical isolation for signal integrity, and compatibility with automated process control architectures. The pump is intended for continuous or intermittent operation in ambient lab settings (0–40 °C, <80% RH), supporting applications ranging from reagent dosing in HPLC sample preparation to cell culture media perfusion and inline titration systems.

Key Features

• High-precision stepping motor drive with speed resolution of 0.1 rpm and accuracy better than ±0.2%, ensuring reproducible flow delivery across the full range (0.00011–500 mL/min).
• Dual-language (English/Chinese) graphical LCD interface with intuitive menu navigation, real-time status feedback, and parameter persistence across power cycles.
• Industrial membrane keypad with tactile response and extended mechanical life—designed for frequent use in shared lab environments.
• Programmable timing functions: user-defined run duration, pause intervals (0.1 s to 999 days), and cycle counts (1–999 or infinite), enabling automated liquid dispensing, timed sampling, and flow calibration protocols.
• Engineered anti-drip functionality: programmable deceleration ramp (soft stop) and reverse suction (backfill) to prevent post-shutdown dripping—a critical requirement for gravimetric dosing and micro-volume transfers.
• Comprehensive external control architecture: isolated digital I/O (5–24 V), configurable analog input (0–5 V / 0–10 V / 4–20 mA), and RS485 serial interface supporting Modbus RTU for integration into SCADA, PLC, or LIMS-controlled workflows.
• Enhanced environmental resilience: conformal-coated PCBs (triple-layer moisture/dust/corrosion protection), wide-input AC power supply (100–240 V, 50/60 Hz), and EMI-hardened circuitry for stable operation in electrically noisy facilities.

Sample Compatibility & Compliance

The BT103S is compatible with a broad range of chemically resistant silicone and thermoplastic elastomer (TPE) tubing sizes (e.g., 0.5–6.4 mm ID), supporting fluid viscosities up to 10,000 cP under standard operating conditions. It accommodates multiple interchangeable pump heads—including single-channel, multi-channel, and high-pressure configurations—enabling method flexibility without hardware replacement. While not certified to ISO 13485 or FDA 21 CFR Part 11 out-of-the-box, its deterministic behavior, non-invasive fluid path, and audit-ready operational logging (when paired with optional thermal printer or LeadFluid APP) support alignment with GLP and GMP documentation practices. The pump meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1), and its IP31 rating confirms protection against vertically falling solid objects and limited ingress of moisture—suitable for benchtop deployment in ISO Class 7/8 cleanrooms when operated within specified environmental limits.

Software & Data Management

The integrated LF-LED-OS firmware provides local parameter configuration, real-time monitoring, and event-based logging (e.g., start/stop timestamps, speed changes, error flags). For remote supervision, the optional LeadFluid mobile application enables secure Bluetooth/Wi-Fi connectivity to configure speed, initiate/terminate runs, schedule timed operations, and receive push notifications for maintenance events—including tubing wear alerts and optional occlusion or leak detection triggers. When connected via RS485 to a host system, the pump supports bidirectional data exchange using standard Modbus register mapping (e.g., holding registers for setpoint speed, input registers for actual rpm and status bits), facilitating traceability in automated workflows. Optional thermal printer output provides hard-copy records of runtime parameters—supporting 21 CFR Part 11-compliant record retention when paired with appropriate procedural controls.

Applications

• Automated sample introduction in atomic absorption spectroscopy (AAS) and inductively coupled plasma (ICP) analysis.
• Controlled reagent addition in titration systems and dissolution testing apparatus per USP & Ph. Eur. guidelines.
• Media perfusion and feed strategies in bioreactor seed train and small-scale mammalian cell culture platforms.
• Calibration fluid delivery in flow meter verification and gravimetric flow standardization procedures.
• Continuous wastewater sampling and inline nutrient dosing in environmental monitoring stations.
• Low-shear transfer of shear-sensitive biological suspensions, including enzyme solutions and particulate-containing buffers.

FAQ

What tubing sizes are supported by the BT103S?
The pump is compatible with standard peristaltic tubing IDs from 0.5 mm to 6.4 mm, depending on the installed pump head model. Tubing material selection must consider chemical compatibility and pressure rating.
Does the BT103S support analog speed control?
Yes—it accepts configurable analog input signals of 0–5 V, 0–10 V, or 4–20 mA, with scaling adjustable via the front panel or RS485 interface.
Can the pump be integrated into a PLC-controlled system?
Yes—its RS485 port implements Modbus RTU protocol with documented register maps, enabling seamless integration with Allen-Bradley, Siemens, and Omron PLCs.
Is the “drop prevention” function programmable?
Yes—the soft-stop deceleration profile and post-run reverse suction volume/duration are fully configurable through the local interface or remote commands.
What certifications does the BT103S hold?
It complies with EN 61010-1 (safety) and EN 61326-1 (EMC) and carries CE marking; no FDA or UL listing is provided, as it is classified as a laboratory accessory rather than a medical device.