LongerPump T100 Integrated Peristaltic Pump with 57-Step Motor

Overview

The LongerPump T100 Integrated Peristaltic Pump is an engineered solution for precise, repeatable, and maintenance-free fluid transfer in laboratory, analytical, and industrial process environments. Based on the positive displacement principle of peristalsis—where rollers compress a flexible tubing against a curved housing to generate unidirectional flow—the T100 eliminates fluid contact with mechanical components, ensuring contamination-free operation and chemical compatibility dictated solely by tubing material selection. Its integrated architecture combines a high-torque 57-step hybrid stepper motor, precision motion controller, and RS485 communication module into a single compact chassis (121 × 102 × 118 mm), minimizing footprint while maximizing system-level reliability. Designed for integration into automated workflows, the T100 supports external control via digital I/O, analog voltage (0–5 V or 0–10 V), pulse-width modulation (PWM), and serial command protocols—making it suitable for OEM instrumentation, continuous sampling systems, bioreactor feed control, and multi-channel reagent dispensing platforms.

Key Features

• Monolithic design integrating 57-step stepper motor, driver electronics, and communication interface—no external controller required
• High-resolution speed control down to 0.1 rpm across full 0–100 rpm range, enabling ultra-low-flow applications such as microfluidic calibration or trace-standard delivery
• Dual-mode external control: real-time analog voltage input (0–5 V / 0–10 V) for proportional speed adjustment, and TTL-compatible digital signals (start/stop, direction, full-speed override)
• RS485 interface compliant with Modbus RTU (slave mode) and LongerPump’s proprietary OEM protocol; configurable baud rates (1200–115200 bps), parity (none/even), and address (1–32)
• Programmable power-on behavior: user-selectable default state (stopped, running at preset speed, or awaiting command)
• DC5V/100mA auxiliary output for powering external sensors or logic circuitry, synchronized with pump operational status
• Robust mechanical construction with aluminum alloy housing, IP20-rated enclosure, and vibration-damped mounting options (panel or baseplate)

Sample Compatibility & Compliance

The T100 is compatible with a broad portfolio of standard and custom pump heads—including YZ1515X, YZII15, YZ2515X, FG15-13, BZ15-13 series, DG15-24, and BPH01—supporting tubing IDs from 0.5 mm to 6.4 mm (e.g., Norprene®, Viton®, silicone, and PharMed® BPT). Maximum flow rates are empirically determined per pump head/tubing combination and referenced under standardized test conditions (25°C, water, 100% occlusion, single-channel operation). While not certified to IEC 61000-6-2/6-4 or UL 61010-1 out-of-box, the T100’s electrical architecture complies with essential EMC and safety principles for lab-grade equipment. When deployed in regulated environments (e.g., pharmaceutical QC labs), its deterministic open-loop control, absence of feedback drift, and audit-ready serial command logging (via host system) support alignment with GLP and GMP documentation requirements. Full traceability of operating parameters—including speed setpoint, runtime, direction, and fault events—is achievable through host-side data capture.

Software & Data Management

The T100 operates without embedded firmware-based UI or local display; instead, it functions as a deterministic peripheral within a larger automation ecosystem. Configuration and real-time control are executed exclusively via host software using ASCII-based command sets (e.g., “RUN”, “STOP”, “SPEED=42.3”, “DIR=CCW”) over RS485. LongerPump provides a Windows-compatible PC utility for commissioning and validation, including waveform generation for analog control testing and log export in CSV format. For integration into LIMS, SCADA, or LabVIEW-based platforms, drivers and example scripts (Python, C#, MATLAB) are available under NDA. All serial transactions include response acknowledgments and error codes (e.g., E01 = invalid command, E04 = overtemperature), enabling robust error handling. Though not natively 21 CFR Part 11 compliant, the T100 supports electronic record integrity when paired with validated host software that implements audit trails, electronic signatures, and role-based access control.

Applications

• Automated liquid handling in analytical chemistry workflows (e.g., HPLC mobile phase delivery, ICP-MS sample introduction, titrator reagent dosing)
• Continuous media feeding and pH-controlled nutrient addition in microbial fermentation and cell culture bioreactors
• In-line calibration standard delivery for online analyzers (e.g., conductivity, UV-Vis, dissolved oxygen sensors)
• Low-shear transfer of shear-sensitive biological fluids (e.g., whole blood, cell suspensions, protein solutions) in diagnostic instrumentation
• OEM integration into environmental monitoring stations (e.g., wastewater nutrient analyzers, groundwater sampling controllers)
• Education and research labs requiring reproducible, low-cost fluid metering with programmable timing and sequencing

FAQ

What tubing materials are recommended for use with the T100?
Tubing selection must be based on chemical compatibility, pressure rating, and elasticity. Commonly used materials include platinum-cured silicone (for general lab use), Norprene® (for ozone resistance), Viton® (for hydrocarbon solvents), and PharMed® BPT (USP Class VI, FDA-compliant for pharmaceutical applications). Always verify compatibility using manufacturer chemical resistance charts.
Can the T100 operate in bidirectional mode?
Yes—the T100 supports reversible rotation via digital input or serial command (“DIR=CW” / “DIR=CCW”), enabling applications such as backflushing, recirculation loops, and dual-reservoir exchange.
Is flow rate linearly proportional to rotational speed?
Within a given pump head and tubing configuration, flow rate exhibits high linearity vs. rpm under constant backpressure (1000 mPa·s), or pulsation-sensitive downstream detection—calibration against gravimetric or volumetric standards is recommended for quantitative work.
Does the T100 include overload or stall protection?
The integrated driver monitors coil current and thermal rise; sustained overcurrent or >60°C internal temperature triggers automatic shutdown with fault code reporting via RS485. Recovery requires host-initiated reset or power cycle.
How is accuracy verified during installation?
Accuracy verification should follow ASTM D3418 (standard practice for peristaltic pump calibration) or internal SOPs involving timed collection into a calibrated cylinder, repeated across at least three speed points (e.g., 10, 50, 90 rpm) and two tubing batches. Repeatability (RSD 0.999) are typical performance benchmarks.