Brookfield BT-200 Dual-Channel Digital Peristaltic Pump

Overview

The Brookfield BT-200 Dual-Channel Digital Peristaltic Pump is an engineered solution for precise, pulse-free fluid delivery in laboratory and pilot-scale applications requiring independent control of two parallel flow paths. Based on the principle of peristalsis—where rollers compress flexible tubing to displace fluid without contacting the medium—the BT-200 eliminates risk of cross-contamination, seal leakage, or sample degradation. Its brushless DC motor drive ensures consistent torque output across the full flow range, enabling stable volumetric delivery under variable back pressure conditions up to 2.5 kg/cm². Designed for integration into chromatographic systems, bioreactor feed trains, environmental sampling manifolds, and continuous reaction setups, the BT-200 operates without valves, pistons, or wetted metal components, making it suitable for aggressive solvents, shear-sensitive biomolecules, and sterile process streams.

Key Features

• Dual-channel architecture with fully independent speed and direction control—enabling synchronized or asynchronous operation of two flow paths
• LED digital display with real-time RPM and flow rate readout (calibrated per tubing type and inner diameter)
• Adjustable rotation speed range: 0.1–120 rpm, corresponding to a calibrated flow range of 1–6800 mL/h per channel when used with standard 3.2 mm ID silicone tubing
• Brushless DC motor with thermal protection and low electromagnetic interference—optimized for long-duration unattended operation
• Modular pump head design supporting rapid tubing changeover; compatible with standard peristaltic tubing sizes (1.6 mm to 6.4 mm ID), including USP Class VI-certified silicone and chemically resistant PharMed® BPT
• Front-panel membrane keypad with dedicated start/stop, direction reversal, and memory recall functions
• Robust ABS+PC housing rated IP20 for laboratory benchtop use; CE-compliant per EN 61000-6-2 (immunity) and EN 61000-6-3 (emission)

Sample Compatibility & Compliance

The BT-200 is inherently compatible with a broad spectrum of liquids—including aqueous buffers, organic solvents (e.g., acetonitrile, methanol, IPA), cell culture media, viscous polymer solutions (<5,000 cP), and suspensions containing particles ≤50 µm—provided appropriate tubing material is selected. It meets functional requirements outlined in ISO 8536-4 (infusion equipment), ASTM D471 (rubber property testing), and supports Good Laboratory Practice (GLP) workflows through repeatable flow calibration traceable to NIST-traceable volumetric standards. While not certified for medical device use per ISO 13485, its design aligns with FDA 21 CFR Part 11 data integrity principles when paired with compliant data logging software (see Software & Data Management section).

Software & Data Management

The BT-200 operates as a standalone instrument but supports optional RS-232 or USB-to-serial interface (via external adapter) for remote command control using ASCII-based SCPI-like protocols. Compatible with third-party lab automation platforms—including LabVIEW™, Python (pySerial), and MATLAB®—it enables programmable ramp profiles, timed dispensing cycles, and event-triggered flow adjustments. When integrated into validated environments, audit trails of parameter changes, runtime logs, and calibration records can be exported in CSV format. For regulated pharmaceutical or QC labs, configuration control and user access management must be implemented at the host system level, as the pump itself does not embed user roles or electronic signatures.

Applications

• Continuous feeding of nutrient media or inducers in microbial or mammalian cell culture bioreactors
• Gradient solvent delivery in preparative HPLC and flash chromatography systems
• Automated reagent addition in enzyme kinetics assays and high-throughput screening platforms
• Wastewater sampling and inline dilution in environmental monitoring stations
• Controlled dosing of catalysts or initiators in continuous-flow chemical synthesis reactors
• Perfusion systems for tissue engineering scaffolds and organ-on-chip devices

FAQ

What tubing sizes are supported by the BT-200 pump head?
The standard pump head accommodates tubing with inner diameters from 1.6 mm to 6.4 mm. Recommended tubing materials include platinum-cured silicone (for general-purpose use) and PharMed® BPT (for enhanced chemical resistance and USP Class VI compliance).
Can the two channels operate at different flow rates simultaneously?
Yes—each channel has independent speed control, allowing differential flow rates, directions, and start/stop timing without hardware modification.
Is the BT-200 suitable for sterile applications?
Sterility is achieved via tubing selection and aseptic handling. The pump itself is not autoclavable, but the pump head and tubing can be sterilized using gamma irradiation or ethylene oxide—provided tubing material certification supports the method.
How often does the tubing require replacement?
Lifespan depends on operating speed, pressure, and fluid chemistry. Under typical lab conditions (≤60 rpm, aqueous solutions), silicone tubing lasts 100–300 hours. A tubing wear indicator function is not built-in; users should monitor for visible flattening, cracking, or flow deviation exceeding ±3% of setpoint.
Does the BT-200 comply with FDA 21 CFR Part 11?
The device does not natively support electronic signatures or audit trails. However, when connected to a Part 11-compliant host system that manages user authentication, change logging, and data archiving, the BT-200 may be deployed within validated workflows under appropriate procedural controls.