Cole-Parmer Masterflex L/S Digital Drive with iOS/Android Remote Control (Model 74906-03)

Overview

The Cole-Parmer Masterflex L/S Digital Drive (Model 74906-03) is a precision-engineered, multi-channel peristaltic pump system designed for laboratory-grade fluid handling in analytical, preparative, and process-critical applications. Operating on the fundamental principle of peristalsis—where rollers compress flexible tubing to generate positive displacement—the system delivers pulse-minimized, non-invasive fluid transfer without contact between the pump mechanism and the sample. This ensures contamination-free operation, making it ideal for sensitive assays, reagent delivery, column elution, and continuous-flow sample introduction. The 12-roller pump head reduces pulsation amplitude by up to 40% compared to standard 8-roller configurations, enhancing flow stability across low-to-moderate flow ranges (0.6 µL/min to 10.35 mL/min). Its bi-directional motor enables reversible flow control—a critical capability for backflushing, calibration loops, and bidirectional microfluidic protocols.

Key Features

• Four independent pump channels housed in a compact, benchtop footprint (9.5 × 9.5 × 14 cm), enabling parallel fluid handling without cross-channel interference.
• Digital speed control from 0 to 150 rpm with ±1.26% repeatability—calibrated and verified per ISO 5725-2:1994 guidelines for precision fluid delivery.
• Integrated Ethernet port and USB 2.0 interface for direct PC connectivity; supports native Windows XP through Windows 7 (32-bit) environments via Cole-Parmer’s RDP-based network control software.
• iOS and Android remote access: When connected to the same local WiFi network, mobile devices run the official Cole-Parmer Remote Drive app (available on iTunes App Store and Google Play) to monitor status or fully command pump parameters—including start/stop, direction reversal, and real-time speed adjustment.
• Two-tier software licensing: Free “Lite” version provides read-only monitoring; paid full-featured license unlocks complete operational control and synchronized multi-pump coordination (up to four units on one network).
• Compatibility with chemically resistant tubing—including standard PVC and Solva hydrocarbon-resistant formulations—validated for use with aqueous, organic, and mildly aggressive solvents at temperatures up to 52 °C.

Sample Compatibility & Compliance

This pump system is compatible with a wide range of standard Masterflex L/S-series tubing sizes (ID 0.13–2.79 mm), each paired with validated part numbers for consistent performance (e.g., 74906-xx series for PVC, 74907-xx/74908-xx/74909-xx for solvent-resistant variants). Tubing selection directly determines flow rate linearity and chemical compatibility—critical for applications such as isotope ratio mass spectrometry (IRMS) pre-concentration, wear metal analysis in lubricating oils (ASTM D5185), and low-volume LC autosampler interfacing. While the device itself carries CE marking for EMC and LVD compliance, end-user validation of tubing compatibility against specific analytes and matrices remains the responsibility of the laboratory under GLP/GMP frameworks. No internal wetted parts other than the selected tubing ensure full traceability and ease of cleaning or replacement between runs.

Software & Data Management

The included RDP (Remote Drive Protocol) software provides audit-ready operational logging: timestamped records of speed changes, direction toggles, runtime duration, and channel activation states are stored locally on the host PC. Though not natively compliant with FDA 21 CFR Part 11, the software architecture supports integration into validated laboratory information management systems (LIMS) via CSV export and TCP/IP command scripting. For regulated environments, users may implement external electronic logbooks or instrument qualification documentation (IQ/OQ/PQ) aligned with ISO/IEC 17025 or ASTM E2500-07 requirements. Mobile app usage does not store historical data on-device; all control commands originate from and are logged by the host PC running the RDP server.

Applications

• Automated sample introduction for ICP-MS and ICP-OES, where low-flow precision (<10 µL/min) and pulse suppression minimize signal noise in isotope ratio measurements.
• Pre-concentration workflows in environmental testing labs (e.g., EPA Method 200.8), delivering consistent sub-mL fractions to solid-phase extraction cartridges.
• In-line dilution and standard addition in clinical chemistry analyzers requiring repeatable, low-volume reagent metering.
• Continuous-flow reaction monitoring in synthetic chemistry, supporting residence time control in microreactor setups.
• Wear debris analysis in petroleum laboratories—metering oil samples through filtration and digestion modules prior to elemental quantification.

FAQ

Is the iOS/Android remote control function compatible with modern operating systems beyond iOS 6 or Android 4.x?
Yes—the current RDP protocol and mobile app support iOS 12+ and Android 8.0+, provided the local WiFi infrastructure uses WPA2/WPA3 encryption and permits mDNS/Bonjour service discovery.
Can this pump be integrated into a SCADA or PLC-controlled environment?
It supports basic ASCII command over TCP/IP (port 23), enabling integration with third-party industrial controllers using Modbus TCP gateways or custom middleware—but no native Modbus RTU or EtherNet/IP stack is embedded.
What tubing certification documentation is available for GMP-regulated use?
Cole-Parmer supplies USP Class VI-compliant PVC tubing (74906-xx series); Solva tubing meets ASTM D297-17 for elastomer resistance but requires user-specific extractables testing per ICH Q5C guidelines.
Does the 12-roller head require recalibration after tubing replacement?
No—flow rate is determined solely by tubing ID, roller geometry, and rotational speed; no mechanical recalibration is needed. However, volumetric verification using gravimetric or timed-collection methods is recommended post-tubing change per ISO 8655-3.
Is firmware update capability supported?
Firmware updates are distributed exclusively through Cole-Parmer technical support and require connection via USB; no over-the-air (OTA) update path exists for the embedded controller.