Masterflex Digi-Staltic Peristaltic Pump System Model 77310-01

Overview

The Masterflex Digi-Staltic Peristaltic Pump System Model 77310-01 is an engineered solution for precise, contamination-free fluid handling in regulated laboratory and industrial environments. Based on the principle of positive displacement via occlusion—where rollers compress flexible tubing to advance fluid without internal contact—the system eliminates risk of cross-contamination, seal leakage, or sample degradation. Its modular architecture separates the controller (Model 77310-02) from the pump drive unit (Model 77310-01), enabling scalable deployment across multi-pump configurations. Designed for applications demanding repeatability and traceability—including pharmaceutical formulation, bioprocess sampling, analytical reagent delivery, and food-grade liquid transfer—the Digi-Staltic platform integrates programmable logic with mechanical robustness to support both routine operation and method-critical workflows.

Key Features

• Modular controller-pump architecture supporting up to four independent pump drives per controller, each with individually assignable speed, direction, run time, and pause intervals.
• Dual Easy-Load II pump heads per drive unit, configured in Y-junction layout to minimize pulsation and deliver steady-state flow profiles—critical for sensitive detection systems and continuous dilution protocols.
• Backlit 80-character LCD interface with menu-driven keypad for direct parameter entry; supports real-time display of RPM, flow rate, elapsed time, and active program status.
• 30-user-program memory with full parameter retention: flow volume (0.5 mL–8000 L), dispensing unit (mL, L, g, kg), interval timing (0–999.9 s), ramp-up/down duration (0–9.9 s), anti-drip reverse rotation (0–10 revolutions), and cycle count (1–999).
• Comprehensive tubing compatibility across 11 Masterflex silicone and platinum-cured elastomer formulations—including high-pressure, chemically resistant, and USP Class VI-certified options—selected via intuitive software-assisted sizing that auto-calculates optimal RPM ranges.
• Serial communication interface (RS-232) enables bidirectional PC integration: upload/download programs, monitor live pump status, perform comparative calibration checks, and export timestamped operational logs for quality review.

Sample Compatibility & Compliance

The Digi-Staltic system accommodates a broad viscosity range—from aqueous buffers (1 cP) to viscous cell culture media (>10,000 cP)—through selection of wall-thick tubing (e.g., #25, #35, #36) with enhanced suction capability. All compatible tubing meets ISO 10993 and USP Class VI biological safety standards. The system’s IP22 ingress protection rating ensures safe operation in standard laboratory environments. While the base hardware complies with CE and cUL safety directives, its software-enabled data management supports alignment with regulatory frameworks: when paired with validated PC software, it provides electronic signatures, audit trails, and user-access controls required under FDA 21 CFR Part 11 and EU Annex 11. Routine operation adheres to ISO 9001:2000 quality management principles, and documentation packages are available for GLP/GMP validation protocols.

Software & Data Management

The included Digi-Staltic Control Software facilitates offline program development, version-controlled storage, and synchronized deployment across multiple controllers. Each program file contains metadata—operator ID, date/time stamp, tubing type, calibration offset, and execution history—enabling full traceability. Real-time telemetry allows remote visualization of pump status, including current RPM, cumulative volume dispensed, and error flags (e.g., tubing fatigue detection, motor stall). Log files export in CSV format for integration into LIMS or ELN platforms. Optional firmware updates maintain backward compatibility while extending compliance readiness—for instance, enabling electronic record retention periods per ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate).

Applications

• Pharmaceutical QC/QA: Automated buffer exchange in HPLC mobile phase preparation; sterile media transfer during aseptic fill-finish process validation.
• Biotechnology: Sequential reagent addition in ELISA wash steps; perfusion culture media recirculation with pulseless flow assurance.
• Food & Beverage: Precise flavor concentrate dosing into batch mixers; hygienic transfer of dairy products where metal-contact prohibition applies.
• Environmental Testing: Continuous sampling from aqueous streams with programmable dilution gradients for ICP-MS analysis.
• Academic Research: Multi-step gradient elution in column chromatography; controlled infusion in microfluidic device priming and testing.

FAQ

What tubing sizes are supported by the Model 77310-01 pump head configuration?
The 77310-01 drive unit accepts two Easy-Load II pump heads—either part number 77200-60 (for tubing sizes #13, #14, #16, #25, #17, #18) or 77200-62 (for #15, #24, #35, #36)—each optimized for specific inner diameter and pressure requirements.
Can the controller operate without PC connectivity?
Yes. All 30 programs can be created, edited, and executed directly via the front-panel interface; PC connectivity is optional for advanced data management and remote diagnostics.
Is flow accuracy affected by tubing wear over time?
Flow accuracy remains within ±0.5% of setpoint under nominal conditions; however, scheduled tubing replacement per manufacturer guidelines (based on revolutions and chemical exposure) is required to maintain specification compliance.
How does the system handle high-viscosity fluids?
Thicker-walled tubing (e.g., #35, #36) provides higher occlusion force and improved suction lift—enabling reliable transport of fluids up to ~15,000 cP when operated within recommended RPM limits.
Does the system support integration with analytical balances?
Yes. Via optional interface cables (77310-06 for Ohaus/Sartorius; 77310-07 for AND), the controller accepts real-time mass feedback to dynamically adjust dispensing volume—supporting gravimetric endpoint control.