Masterflex E/S Submersible Water Sampling Pump, Model 07571-05

Overview

The Masterflex® E/S Submersible Water Sampling Pump (Model 07571-05) is an engineered peristaltic sampling system designed for reliable, unattended field deployment in environmental monitoring applications. Utilizing positive displacement via roller compression of flexible tubing—principally Tygon® 24—this pump delivers contamination-free fluid transfer without internal wetted metal components. Its submersible architecture enables direct immersion into surface water, wells, or marine environments up to 7.9 meters depth, with buoyancy retention for up to 30 minutes post-submersion. The unit operates on dual power modes: mains-powered (230 V, 50 Hz) for continuous operation and integrated 12 V rechargeable battery backup supporting up to four hours of autonomous sampling. Designed to meet U.S. Environmental Protection Agency (EPA) regulatory criteria outlined in 40 CFR Part 122.21 and 122.26 (Method 833 B-92.001), the E/S pump supports compliance-driven data collection workflows in wastewater discharge monitoring, groundwater assessment, and ambient surface water quality programs.

Key Features

• Submersible-rated enclosure with IP54 ingress protection—resistant to dust and low-pressure water jets during handling and deployment
• Fixed-speed operation at 600 rpm with ±10% speed accuracy, ensuring repeatable volumetric delivery across extended sampling intervals
• Bidirectional motor control facilitates line purging and inlet clearing—critical for maintaining sample integrity in sediment-prone or biofouling environments
• Compact form factor (41 × 29 × 27 cm) allows insertion through narrow well casings ≥45.7 cm in diameter
• Integrated backlit LCD interface supports low-light field operation and real-time status feedback—including battery level, runtime, and operational mode
• Robust mechanical design certified to ISO 9001:2000 quality management standards and compliant with CE and CUL safety directives

Sample Compatibility & Compliance

The E/S pump is compatible with a range of chemically inert, USP Class VI-certified tubing materials—including Tygon® 24 (PN 06409-24) and platinum-cured silicone—enabling safe handling of potable water, wastewater, brackish estuarine samples, and mildly aggressive aqueous matrices. Tubing selection directly governs flow performance: at 600 rpm, Tygon® 24 delivers 210–1100 mL/min depending on line length, elevation differential, and fluid viscosity. The system meets EPA-required performance benchmarks for discrete and composite sampling protocols, including minimum flow stability, air-injection resistance, and pressure tolerance under submerged static head conditions. All electrical components are rated for outdoor use per IEC 60529 (IP54), and documentation supports GLP-aligned audit trails when paired with validated data loggers.

Software & Data Management

While the Model 07571-05 is a non-programmable base unit (pump-only configuration), it serves as the core actuator within the broader Masterflex E/S programmable platform. When integrated with the full E/S controller (e.g., Model 07580-00), users gain access to six preconfigured sampling routines—five of which are user-modifiable—supporting volume-triggered, time-based, and delay-initiated collection sequences. Programmable parameters include sample volume (1 mL–9 L), interval timing (1 min–167 h 59 min), and standby duration. Internal memory retains up to 300 event timestamps with associated metadata (e.g., start/stop time, motor direction, battery voltage). Data export occurs via RS-232 or USB interface; exported logs comply with FDA 21 CFR Part 11 requirements when used with validated software and electronic signature protocols.

Applications

• Regulatory-compliant wastewater effluent monitoring per NPDES permit conditions
• Groundwater quality assessment in monitoring wells and piezometers
• Surface water surveillance in rivers, lakes, and coastal zones
• Composite sampling for laboratory analysis (e.g., metals, nutrients, organics)
• Calibration verification of inline flow sensors and analyzers
• Emergency response sampling during spill events or stormwater overflows

FAQ

Is the Model 07571-05 supplied with tubing or a pump head?
No. This model is a pump-only configuration (no pump head, no tubing). Compatible accessories include Easy-Load stainless steel pump head 07518-12 and Tygon® 24 tubing (06409-24).
What is the maximum submersion depth and duration?
The unit is rated for continuous operation at depths up to 7.9 meters and maintains positive buoyancy for up to 30 minutes when sealed in its transport case.
Can this pump be powered by vehicle DC supply?
Yes—optional automotive power adapter (PN 07571-50, 12 V DC input) enables mobile deployment from standard vehicle electrical systems.
Does the pump support variable speed control?
No. Model 07571-05 operates exclusively at fixed 600 rpm. Variable speed and programmability require the full E/S controller system (e.g., Model 07580-00).
What certifications apply to this device?
It carries CE marking, CUL recognition, and ISO 9001:2000 quality system certification. It is not intrinsically safe or ATEX-rated.