LongerPump BT300-2J Precision Peristaltic Pump

Overview

The LongerPump BT300-2J is a benchtop precision peristaltic pump engineered for reproducible, contamination-free fluid handling in regulated laboratory environments. Based on the positive displacement principle of peristalsis—where rollers compress flexible tubing to generate unidirectional flow—the BT300-2J delivers precise volumetric delivery without internal valves, seals, or wetted metal components. This design eliminates cross-contamination risk and ensures compatibility with aggressive solvents, biological buffers, cell suspensions, and particulate-laden media. Its motor-driven dual-channel architecture supports continuous operation under variable backpressure (up to 2 bar typical), making it suitable for applications requiring stable flow across dynamic system impedances. The pump’s core function is volumetric dosing and transfer—not pressure generation—thereby aligning with ISO 8536-4 and ASTM D3418 standards for peristaltic pump performance verification.

Key Features

• Wide operational flow range: 0.07–1140 mL/min, achieved via interchangeable pump heads (YZ1515X, YZ2515X, YZII15, YZII25) and compatible tubing sizes (e.g., Norprene® L/S 13–36, PharMed® BPT, Tygon® E-3603)
• High-resolution speed control: 1 rpm incremental adjustment across 1–300 rpm, enabled by a front-panel rotary encoder and tactile push-button interface
• Dual-mode operation: Local manual control + remote programmable control via RS485 (Modbus RTU protocol), analog voltage (0–5 V / 0–10 V), or TTL-compatible pulse input (0–10 kHz)
• Power-loss memory retention: Automatically resumes pre-interruption speed, direction, and operating mode upon AC power restoration
• Dedicated full-speed mode: Instant activation for rapid fill/empty cycles—critical for batch dispensing, reactor priming, or waste evacuation
• Reversible rotation: Enables bidirectional fluid transfer and system purge functionality without mechanical reconfiguration
• IP31-rated enclosure: Dust-protected housing with limited drip resistance—intended for indoor laboratory use only (not rated for outdoor or washdown environments)

Sample Compatibility & Compliance

The BT300-2J is chemically inert relative to tubing material selection; no pump component contacts fluid except the inner surface of the elastomeric tube. Users must select tubing certified for their application—for example, USP Class VI–compliant silicone for pharmaceutical buffer transfer, or fluoropolymer-lined tubing for HPLC mobile phase delivery. While the unit itself does not carry CE marking by default, CE-compliant versions are available upon explicit order specification and include full EMC (EN 61326-1) and LVD (EN 61010-1) documentation. The pump supports GLP/GMP workflows through deterministic control logic, non-volatile parameter storage, and traceable external command logging when integrated with validated supervisory systems (e.g., LabVIEW, SCADA). It meets general requirements of ISO/IEC 17025 for equipment used in testing laboratories when operated within specified environmental limits (0–40 °C, <80% RH).

Software & Data Management

The BT300-2J operates as a stand-alone device but integrates seamlessly into automated platforms via its native RS485 port. Modbus RTU register mapping enables read/write access to real-time parameters—including current speed, direction status, run/stop state, and fault codes (e.g., overtemperature, motor stall). Analog and pulse inputs allow synchronization with PLCs, data loggers, or custom DAQ systems. No proprietary software is required; configuration can be performed using standard terminal emulators (e.g., Tera Term) or third-party Modbus masters. For audit-trail compliance, external systems may record timestamped command sequences and operational logs—fully satisfying FDA 21 CFR Part 11 requirements when implemented with appropriate electronic signature and access controls.

Applications

• Automated reagent dispensing in ELISA, PCR setup, and cell culture workflows
• Continuous feed in bioreactors, fermenters, and membrane filtration systems
• Calibration fluid delivery for flow meter validation (per ISO 4064)
• Mobile phase delivery in preparative chromatography systems (when paired with pulse-dampening manifolds)
• Waste aspiration in ICP-MS sample introduction modules
• Controlled infusion in pharmacokinetic dissolution testing (aligned with USP )
• Integration with FK-1C fraction collector for timed eluent fractionation

FAQ

Does the BT300-2J support regulatory-compliant audit trails?
Yes—when connected to a validated external controller that captures timestamps, user IDs, and command payloads, the pump contributes to Part 11–compliant data integrity frameworks.
Can the pump operate continuously at maximum speed?
Yes, provided ambient temperature remains ≤35 °C and tubing is rated for sustained compression at 300 rpm; recommended duty cycle is ≤80% for >8-hour shifts.
Is tubing life monitored or reported by the pump?
No—tubing wear is application-dependent and requires manual inspection per manufacturer guidelines (e.g., Norprene® recommends replacement after ~100–500 hours at 100 rpm).
What is the maximum allowable backpressure for accurate flow delivery?
Flow accuracy degrades above 1.5 bar with standard tubing; for high-backpressure applications (>0.5 bar), use reinforced tubing (e.g., Pharmed BPT 16#) and verify calibration under actual system conditions.
How is firmware updated?
Firmware is factory-programmed and not field-upgradable; functional enhancements are delivered via hardware revision (e.g., BT300-2J v2.1).