Acmer BT-300U Precision Peristaltic Pump

Overview

The Acmer BT-300U Precision Peristaltic Pump is an industrial-grade, microprocessor-controlled fluid transfer system engineered for repeatable, contamination-free dosing and continuous flow applications in analytical laboratories, bioprocessing workflows, and chemical synthesis environments. Operating on the principle of peristalsis—where rollers compress a flexible tubing segment against a rigid housing to generate positive displacement—the BT-300U delivers precise volumetric delivery without exposing the fluid path to valves, seals, or internal wetted surfaces. This design eliminates cross-contamination risks and ensures compatibility with aggressive solvents, cell cultures, viscous suspensions, and shear-sensitive biologicals. Its modular architecture supports interchangeable pump heads—including YZ1513, YZ2513S, BZ, and DMD1513—to accommodate tubing inner diameters from 0.1 mm to 6.4 mm, enabling flow rate scalability across three orders of magnitude (0.0063–1950 mL/min) while maintaining linearity and low pulsation.

Key Features

• Multi-mode speed control: Manual adjustment via intuitive keypad interface, hands-free operation using optional footswitch, analog/digital voltage or TTL-level external triggering, and protocol-compliant RS485 communication (Modbus RTU) for integration into SCADA, LIMS, or PLC-based automation systems.
• Bidirectional rotation with instant direction reversal—critical for backflushing, recirculation loops, and titration protocols requiring precise reagent withdrawal.
• Real-time operational display showing current RPM, active direction (CW/CCW), and status indicators (Run, Stop, Pause, Error), enhancing operator situational awareness during unattended operation.
• User-defined speed ceiling: Maximum rotational speed can be locked at any value ≤400 rpm via keypad programming, preventing unintentional over-speed conditions during method transfers or multi-user lab environments.
• Keypad security lock: A configurable key combination disables all front-panel inputs except emergency stop, mitigating parameter drift caused by incidental contact in high-traffic benchtop settings.
• Leak detection readiness: Optional integrated optical or capacitive leak sensor module interfaces with the pump’s control logic to execute pre-programmed responses—including immediate halt, audible/visual alert, or upstream valve closure—upon detection of tubing breach or fitting failure.

Sample Compatibility & Compliance

The BT-300U is compatible with a broad spectrum of chemically resistant tubing materials (e.g., silicone, Viton®, Tygon® LFL, PharMed® BPT), supporting applications ranging from HPLC mobile phase delivery and fermentation feed control to wastewater sampling and pharmaceutical buffer preparation. While not certified to IEC 61000-6-2/6-4 or UL 61010-1 out-of-the-box, its electrical architecture complies with CE-marking essential requirements for electromagnetic compatibility and functional safety when installed per manufacturer guidelines. The Modbus RTU interface enables audit-ready data logging when paired with compliant SCADA platforms, supporting GLP/GMP-aligned process documentation where electronic records must satisfy FDA 21 CFR Part 11 requirements for attribution, integrity, and retention.

Software & Data Management

No proprietary PC software is bundled; however, the RS485 port provides full register-level access to all operational parameters (current speed, direction, run time, fault codes) and writable configuration registers (max speed limit, acceleration/deceleration ramp, leak response mode). Integration with third-party software (e.g., LabVIEW™, MATLAB®, Python-based PyModbus libraries) allows automated calibration curve generation, scheduled flow profiling, and real-time monitoring dashboards. All configuration changes are non-volatile and retained after power cycling. Firmware updates are performed via UART interface using standard serial terminal tools—no vendor-specific utilities required.

Applications

• Continuous infusion in cell culture bioreactors and perfusion systems
• Accurate metering of standards and reagents in ICP-MS, AAS, and UV-Vis sample introduction manifolds
• Controlled eluent delivery in preparative chromatography and inline dialysis setups
• Automated liquid handling in environmental testing labs (e.g., EPA Method 300.0 for anion analysis)
• Low-shear transfer of protein aggregates, liposomes, or microfluidic droplet generation systems
• Calibration verification of flow meters and mass flow controllers using gravimetric or timed-volume methods

FAQ

What tubing sizes are supported by the BT-300U?
The pump accommodates tubing IDs from 0.1 mm to 6.4 mm, depending on the mounted pump head (YZ1513, YZ2513S, BZ, or DMD1513). Detailed ID/OD specifications and pressure ratings are provided in the pump head datasheets.
Is the RS485 interface isolated?
Yes—the RS485 transceiver includes galvanic isolation rated to 1500 VDC, ensuring noise immunity in electrically noisy industrial or shared laboratory power environments.
Can the pump operate continuously for 24/7 duty cycles?
When used within specified ambient temperature (5–40 °C) and humidity (<80% RH, non-condensing) limits, and with appropriate tubing selection and maintenance intervals, the BT-300U is rated for continuous operation under Class II duty cycle conditions per IEC 60034-1.
Does the leak detection module require external power?
The optional leak sensor module operates from the pump’s internal 5 VDC supply and communicates status via dedicated digital input lines—no auxiliary power source is needed.
How is calibration traceability maintained?
While the BT-300U itself is not a measuring instrument per ISO/IEC 17025, its flow accuracy is validated against NIST-traceable gravimetric standards during factory acceptance testing. End users may perform in-house verification using calibrated balance and timer systems aligned with ASTM D3417 or ISO 8421-2 protocols.