LongerPump BT100-3J Precision Peristaltic Pump

Overview

The LongerPump BT100-3J is a compact, microprocessor-controlled precision peristaltic pump engineered for reproducible, pulse-free fluid delivery in laboratory environments. Operating on the fundamental principle of peristalsis—where rollers compress flexible tubing to displace fluid without contacting the medium—the BT100-3J eliminates contamination risk and ensures chemical compatibility across diverse reagents, solvents, and biological samples. Its modular architecture supports interchangeable pump heads (YZ1515X, YZ2515X, YZII15, YZII25, BZ, DG, DG15, DMD15-13), enabling adaptable flow performance from ultra-low (0.0002 mL/min) to high-volume (380 mL/min) regimes. Designed for integration into analytical workflows—including HPLC fraction collection, cell culture media perfusion, titration systems, and continuous sampling loops—the BT100-3J delivers stable rotational control with ±0.2% speed accuracy under steady-state conditions and maintains mechanical robustness over extended duty cycles.

Key Features

• Wide dynamic flow range: 0.0002–380 mL/min (single-tube configuration), calibrated per pump head and tubing specification
• Precise speed control: 0.1–100 rpm with 0.1 rpm resolution via front-panel membrane keys or external analog/digital signals
• Bi-directional operation: Reversible rotation for bidirectional fluid transfer, rinsing, or backflush protocols
• Integrated RS485 interface compliant with Modbus RTU protocol for centralized system integration and remote parameter setting
• Analog input compatibility: Accepts 0–5 V, 0–10 V, 4–20 mA, and 0–10 kHz signals for seamless linkage with PLCs, DAQ systems, or PID controllers
• Power-loss memory: Retains last active speed, direction, and run state if powered down after ≥5 seconds of operation—restores on reboot without manual reconfiguration
• LED status display: Real-time 3-digit readout of current rotational speed, direction indicator (→/←), and operational mode (RUN/STOP)
• Low thermal signature and <20 W power draw enable unattended benchtop deployment in temperature-sensitive labs

Sample Compatibility & Compliance

The BT100-3J is inherently compatible with any elastomeric tubing meeting dimensional and durometer specifications for its mounted pump head—commonly silicone, Viton®, Tygon® LFL, or C-Flex®. Tubing selection directly governs chemical resistance, pressure tolerance, and pulsation amplitude. While the base unit does not carry CE marking by default, CE-compliant versions are available upon explicit order request and include full EMC and LVD documentation per EN 61326-1 and EN 61000-6-3. The device meets general laboratory safety requirements per IEC 61010-1 and supports GLP-aligned operation through deterministic control logic and non-volatile state retention—though it does not implement FDA 21 CFR Part 11 audit trails or electronic signature functionality.

Software & Data Management

The BT100-3J operates as a standalone controller without bundled PC software; however, its RS485 interface enables interoperability with third-party SCADA platforms, LabVIEW™ VIs, Python-based automation scripts (via PyModbus), or custom HMI interfaces. All communication parameters (baud rate, parity, stop bits) are configurable via front-panel menu. Analog control inputs provide deterministic, low-latency response (<50 ms settling time) suitable for closed-loop flow regulation. No internal data logging is performed—the device functions exclusively as an actuator node within larger data acquisition ecosystems.

Applications

• Automated reagent dispensing in spectrophotometric and colorimetric assays
• Continuous perfusion of 3D bioreactors and microfluidic organ-on-chip platforms
• Mobile phase delivery in preparative chromatography and fraction collector synchronization
• Calibration standard delivery in environmental water analysis (e.g., EPA Method 300.0)
• Controlled nutrient feed in algal photobioreactors and fermentation monitoring setups
• Low-shear transfer of shear-sensitive suspensions including mammalian cell cultures and liposomal formulations

FAQ

Does the BT100-3J support programmable ramping or multi-step protocols?
No—the device implements only constant-speed operation. Programmable acceleration/deceleration profiles require external motion controllers or PLC coordination via RS485 or analog input.
What tubing sizes are validated for use with the DG15-24 pump head?
DG15-24 is rated for tubing IDs of 16# (1.6 mm), 25# (2.4 mm), and 17# (1.8 mm) per ISO 8536-4; wall thickness must be 0.8–1.0 mm for optimal occlusion and roller engagement.
Is firmware upgrade capability available?
Firmware updates are not user-accessible; the microcontroller is factory-programmed with fixed logic. Hardware revisions may introduce minor calibration refinements, communicated via technical bulletins.
Can the pump operate continuously at maximum speed (100 rpm)?
Yes—rated for indefinite operation at 100 rpm when ambient temperature remains ≤35°C and tubing is properly tensioned and cooled. Continuous high-speed use accelerates tubing fatigue; recommended replacement interval is 200–500 hours depending on tubing material and load.
How is flow accuracy affected by tubing aging?
Flow deviation increases as tubing loses elasticity and develops permanent set. Calibration drift exceeds ±3% after ~150 hours at 60 rpm with standard silicone tubing; periodic recalibration against gravimetric measurement is advised for quantitative applications.