Masterflex L/S Digital Speed-Display Peristaltic Pump Model 07528-30

Overview

The Masterflex L/S Digital Speed-Display Peristaltic Pump Model 07528-30 is a precision-engineered laboratory peristaltic pump designed for repeatable, contamination-free fluid transfer in demanding analytical, bioprocessing, and quality control environments. Operating on the principle of positive displacement via roller compression of elastomeric tubing, this pump eliminates fluid contact with internal mechanical components—ensuring absolute chemical compatibility, zero risk of cross-contamination, and compliance with stringent purity requirements in pharmaceutical, food safety, and environmental testing applications. The 07528-30 variant is distinguished by its integrated LED speed display, four-pump-head expandability, and support for high-flow and high-pressure configurations through interchangeable pump heads and chemically resistant tubing options—including Tygon® LFL, Pharmed® BPT, and PTFE-based assemblies. Its robust ABS housing meets IP33 ingress protection standards, while the brushless DC motor delivers consistent torque across the full 0.06–3400 rpm range, enabling precise low-speed metering and high-throughput delivery without pulsation-induced shear stress.

Key Features

• Digital LED speed display with real-time rpm readout for immediate operational verification and process traceability
• Bidirectional operation enables pre- and post-pumping tube flush cycles—critical for sample integrity in sequential assays or multi-reagent workflows
• ±0.25% speed accuracy over the full operating range (validated at key reference points: ±0.1 rpm at 100 rpm; ±1 rpm at 600 rpm), supporting GLP/GMP-compliant calibration protocols
• 4–20 mA analog input interface for centralized control integration into SCADA, PLC, or LIMS environments—enabling remote speed modulation, start/stop commands, and status feedback
• Modular architecture supports up to four independently driven pump heads (07528-30 base unit), facilitating parallel processing, multi-stream blending, or flow augmentation via Y-configuration manifolds
• IP33-rated enclosure with stackable ABS housing provides splash resistance and space-efficient benchtop deployment in shared lab environments
• Compliance with ISO 9001:2000 quality management systems, ETL-listed to UL 61010-1, and CE-marked per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD)

Sample Compatibility & Compliance

The 07528-30 accommodates a broad spectrum of tubing materials and dimensions—including standard Tygon® LFL (13–18, 24–36), Pharmed® BPT (16HP), and fluoropolymer-lined PTFE assemblies—to ensure compatibility with aggressive solvents, strong acids/bases, biological buffers, and sterile media. Tubing selection directly governs pressure capability (up to 10.2 bar with high-pressure pump heads), flow linearity, and service life under continuous duty. When configured with PTFE or FEP-lined pump heads (e.g., 07090-42 or 77390-00), the system meets USP Class VI and FDA 21 CFR Part 11 requirements for material biocompatibility and electronic record integrity—making it suitable for cGMP-regulated processes such as API synthesis, cell culture media preparation, and chromatographic mobile phase delivery. All tubing-driven flow paths eliminate valves, seals, or wetted metal surfaces, eliminating leachables and simplifying cleaning validation.

Software & Data Management

While the 07528-30 operates as a standalone analog-controlled instrument, its 4–20 mA interface enables seamless integration with third-party data acquisition platforms—including LabVIEW, MATLAB, or custom HMI systems—for time-stamped flow logging, alarm triggering, and audit-trail generation. When deployed within validated workflows, users may implement electronic signatures and change-control procedures per FDA 21 CFR Part 11 through compatible host software. The pump’s deterministic speed-response behavior—free from digital latency or firmware-dependent jitter—ensures reproducible volumetric delivery essential for automated titration, fraction collection, or perfusion bioreactor feeding. No embedded firmware updates or proprietary drivers are required; operation remains fully deterministic and vendor-agnostic.

Applications

• Continuous feed of reagents, standards, or calibration solutions in ICP-MS, HPLC, and ion chromatography sample introduction systems
• Controlled media perfusion in hollow-fiber bioreactors and stem-cell expansion platforms
• Accurate dosing of viscous polymer solutions, suspensions, or slurries in formulation development labs
• High-purity transfer of aggressive chemicals (e.g., HF,浓HNO₃, organic peroxides) in semiconductor wafer cleaning or etch processes
• Multi-channel reagent dispensing in ELISA, PCR setup, and microplate washing systems
• On-line monitoring loops requiring uninterrupted flow to analyzers (e.g., pH, conductivity, UV-Vis) in pilot-scale water treatment studies

FAQ

What tubing sizes are supported—and how do they affect flow rate and pressure capability?
The 07528-30 accepts tubing IDs from 0.8 mm to 9.6 mm (e.g., Masterflex catalog numbers 13–36), with flow rates scaling linearly with ID² and pressure capacity inversely related to wall thickness and durometer. High-pressure operation requires thick-wall tubing (e.g., 15, 24, 35, 36 series) paired with high-compression pump heads.
Can this pump be integrated into a 21 CFR Part 11-compliant environment?
Yes—when connected to a validated host system that enforces electronic signatures, audit trails, and role-based access control, the 07528-30 serves as a compliant peripheral due to its deterministic analog control architecture and absence of onboard data storage.
Is the 4-pump-head configuration truly independent—or do all heads run at identical speed and direction?
All four pump heads are mechanically synchronized to the same motor shaft; therefore, speed and direction are identical across all channels. For independent channel control, discrete pump units or multi-channel programmable controllers (e.g., Masterflex I/P series) are recommended.
What certifications apply to the electrical safety and electromagnetic compatibility of this unit?
The device carries ETL listing to UL 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and CE marking for EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU.
How is calibration and performance verification performed?
Speed accuracy is verified using a calibrated tachometer or optical encoder; flow rate validation requires gravimetric or volumetric measurement against NIST-traceable standards per ASTM D3427 or ISO 5667-3, with tubing-specific correction factors applied for elasticity and slip compensation.