Jiapeng HL-2F Digital Dual-Channel Peristaltic Pump for Precision Dispensing and Flow Control

Overview

The Jiapeng HL-2F is a dual-channel digital peristaltic pump engineered for precise, repeatable liquid handling in analytical and preparative laboratory applications. Operating on the principle of positive displacement via roller compression of flexible tubing, the HL-2F delivers stable flow rates without fluid contact with internal mechanical components—ensuring chemical compatibility, contamination-free operation, and minimal maintenance. Its dual independent channels support simultaneous or staggered delivery, making it particularly suitable for gradient elution in liquid chromatography systems, fraction collection synchronization, buffer exchange protocols, and automated reagent dispensing. The pump integrates seamlessly with common lab instrumentation including UV-Vis detectors (e.g., nucleic acid/protein analyzers), fraction collectors, and programmable controllers via standard TTL-level external control inputs.

Key Features

• Dual independent 6-roller pump heads with chemically resistant PTFE housings, enabling consistent occlusion force and extended tubing life across both channels.
• Gold LED digital display with real-time rpm and directional status feedback—optimized for visibility under varied ambient lighting conditions in shared lab environments.
• Step-motor-driven actuation with microstepping control ensures high positional resolution, low vibration, and torque stability across the full 0–65 rpm range (0–60 rpm in dispensing mode).
• Ergonomic 80° inclined control panel reduces operator fatigue during prolonged operation and improves accessibility in benchtop configurations with stacked equipment.
• Full bidirectional rotation capability supports backflushing, priming, and reverse-flow calibration procedures—critical for system integrity verification in regulated workflows.
• Robust ABS polymer enclosure, injection-molded as a single structural unit, provides impact resistance, electromagnetic shielding, and compliance with IEC 61010-1 safety requirements for laboratory electrical equipment.

Sample Compatibility & Compliance

The HL-2F accommodates standard silicone or fluoropolymer-based peristaltic tubing with inner diameters of 1.2 mm (for low-flow precision work) and 3 mm (for higher-volume transfer), supporting aqueous buffers, organic solvents (e.g., acetonitrile, methanol), mild acids/bases, and protein-containing solutions—provided tubing material compatibility is verified per manufacturer specifications. While not certified to FDA 21 CFR Part 11 out-of-the-box, the pump’s deterministic speed control, non-volatile display memory, and absence of onboard data storage make it suitable for use in GMP/GLP environments when deployed within validated system architectures. It meets mechanical safety requirements per ISO 13857 and environmental operating conditions defined in IEC 60721-3-3 (Class 3K3: indoor use, non-condensing).

Software & Data Management

The HL-2F operates as a standalone analog-controlled instrument with no embedded firmware or network connectivity. All operational parameters—including speed setpoint, direction, and channel activation—are configured locally via front-panel rotary encoder and push-button interface. External triggering and speed modulation are supported through TTL-compatible input ports (5 V logic level), allowing integration with fraction collectors (e.g., FC-950 series), PLCs, or custom LabVIEW-based sequencing platforms. For audit-trail generation in regulated settings, users are advised to log pump settings alongside chromatographic run metadata using external electronic lab notebooks (ELNs) compliant with ALCOA+ principles.

Applications

• Integration into benchtop FPLC/HPLC systems for mobile phase delivery and column equilibration.
• Synchronized dispensing with automatic fraction collectors during gel filtration or ion-exchange chromatography.
• Controlled feeding of reagents in enzymatic assays, cell culture media preparation, or continuous-flow synthesis setups.
• Calibration and validation of flow sensors via gravimetric or volumetric rate verification at fixed rpm settings.
• Low-shear transfer of shear-sensitive biologics (e.g., viral vectors, exosomes) using ultra-low rpm (<5 rpm) and large-bore tubing configurations.

FAQ

What tubing sizes are supported by the HL-2F?
The pump head is mechanically optimized for tubing with outer dimensions of 1.2×3 mm and 3×5 mm (ID×OD); users must select wall thickness and durometer per fluid compatibility and pressure requirements.
Can the HL-2F be used in sterile applications?
Yes—when paired with gamma-irradiated, USP Class VI-certified silicone or C-Flex tubing and operated under aseptic bench conditions, the HL-2F supports closed-system transfers in cell therapy and diagnostic reagent manufacturing.
Is there a communication protocol for remote control?
The device features TTL-level external control inputs (start/stop, direction, speed voltage analog input 0–5 V), but lacks USB, RS-232, or Ethernet interfaces; third-party DAQ hardware is required for computer-based automation.
How is flow accuracy maintained across the 0.5–900 mL/h range?
Accuracy depends primarily on tubing elasticity, occlusion geometry, and rotational consistency; typical volumetric repeatability is ±1.5% CV over 24 h at constant rpm when using calibrated tubing batches and temperature-stabilized environments.
Does the HL-2F comply with CE or UL marking requirements?
The unit conforms to the essential health and safety requirements of the EU Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU); however, it is supplied without CE marking—end-users are responsible for system-level conformity assessment prior to deployment in EEA member states.