Longer BT600-2J Precision Peristaltic Pump

Overview

The Longer BT600-2J Precision Peristaltic Pump is a microprocessor-controlled, dual-channel (single-head configurable) laboratory-grade peristaltic pump engineered for high-accuracy fluid transfer in analytical, bioprocessing, and quality control environments. It operates on the principle of positive displacement via roller compression of elastomeric tubing—eliminating fluid contact with mechanical components and ensuring contamination-free, shear-sensitive sample handling. Designed for reproducible volumetric delivery across wide dynamic ranges, the BT600-2J delivers stable flow performance from ultra-low rates (0.07 mL/min) to high-throughput dispensing (up to 3000 mL/min), making it suitable for applications requiring trace dosing, continuous perfusion, or bulk liquid transfer. Its robust architecture, combined with real-time speed feedback and closed-loop motor control, ensures long-term stability and minimal pulsation—critical for HPLC mobile phase delivery, cell culture media exchange, and reagent automation.

Key Features

• Precision speed control with 1 rpm resolution over a 1–600 rpm range, supporting both manual (rotary knob + function buttons) and external command modes (0–5 V, 0–10 V, 0–10 kHz TTL-compatible pulse, or RS485 Modbus RTU)
• Power-loss memory retention: automatically resumes prior operational state—including speed, direction, and run status—after unexpected power interruption
• Dual-mode operation: standard continuous pumping and dedicated full-speed mode for rapid fill/empty cycles (e.g., system priming or tube purging)
• Reversible rotation for bidirectional flow control, enabling backflushing and recirculation protocols
• Three-digit LED display for real-time speed readout; intuitive interface with tactile feedback and visual status indicators
• IP31-rated enclosure for protection against vertically falling drips and solid objects >2.5 mm—optimized for clean bench and fume hood deployment (not rated for outdoor or wet-location use)
• Comprehensive external I/O: isolated analog inputs, optically coupled pulse inputs, and industrial-standard RS485 serial interface for integration into SCADA, LIMS, or PLC-controlled lab automation systems

Sample Compatibility & Compliance

The BT600-2J accommodates interchangeable pump heads—including YZ1515X, YZ2515X, YZII15, YZII25, and DG15-24—enabling flexible tubing selection (ID 0.5–6.4 mm) to match chemical compatibility, pressure tolerance, and flow precision requirements. Compatible tubing materials include PharmPure® silicone, Viton®, Tygon® E-3603, and C-Flex®, supporting USP Class VI, FDA 21 CFR 177.2600, and EP 3.1.10 compliance for pharmaceutical and diagnostic applications. The unit is CE-marked (Declaration of Conformity available upon order confirmation), demonstrating compliance with EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. While not inherently GLP/GMP-certified, its deterministic control logic, audit-ready parameter logging (via external software), and deterministic repeatability support validation under ISO/IEC 17025, ASTM D3418, and USP Analytical Instrument Qualification frameworks.

Software & Data Management

The BT600-2J does not include embedded data logging but provides full remote controllability via RS485 Modbus RTU protocol (function codes 03h/06h/10h), allowing seamless integration with third-party platforms such as LabVIEW, Python (PyModbus), MATLAB, or custom SCADA interfaces. When paired with the FK-1C dispensing controller (sold separately), it supports programmable batch filling, volume-based stop triggers, and multi-step dispense sequences compliant with ISO 8655-3 gravimetric verification standards. All analog and pulse control inputs are galvanically isolated to prevent ground loop interference—a key requirement in electromagnetically noisy lab environments. Firmware updates are performed via UART interface using Longer-provided utilities, ensuring traceable revision control for regulated workflows.

Applications

• Automated reagent dispensing in ELISA, PCR setup, and clinical chemistry analyzers
• Continuous feed in microbial fermenters and mammalian cell bioreactors
• Mobile phase delivery in preparative and analytical HPLC systems where solvent compatibility and low pulsation are critical
• Calibration standard delivery in titration and ion chromatography
• Waste aspiration and buffer exchange in electrophoresis and blotting stations
• Integration into ISO 15197-compliant point-of-care device test benches for metered fluid simulation

FAQ

Is the BT600-2J compatible with FDA-regulated manufacturing processes?

Yes—when used with USP Class VI-certified tubing and operated within validated parameters (e.g., speed, tubing type, duty cycle), the BT600-2J supports IQ/OQ/PQ documentation under 21 CFR Part 11 when integrated with audit-trail-capable host software.
Can multiple BT600-2J units be synchronized?

Yes—via RS485 daisy-chaining with Modbus addressing, up to 32 units can be coordinated for parallel or cascaded pumping tasks without timing drift.
Does the pump support flow calibration against gravimetric standards?

While it lacks built-in flow sensing, its speed-to-flow linearity (±1.5% typical across calibrated tubing sets) enables traceable calibration per ISO 8655-3 using certified balance and timer equipment.
What is the maximum allowable backpressure?

Maximum recommended backpressure is 0.2 MPa (2 bar) at 600 rpm with YZII25 head and 16# tubing; derating is required above 40°C ambient or with viscous fluids (>1000 mPa·s).
Is firmware versioning and update history documented?

Yes—each firmware release includes a changelog and SHA-256 checksum; version logs are retained in the device’s non-volatile memory and accessible via Modbus register interrogation.