Masterflex L/S Economy Peristaltic Pump Model 07554-95
| Brand | Cole-Parmer |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported |
| Models | 07554-95, 77910-35, 77910-25 |
| Motor | 1/20 HP, Unidirectional |
| Speed Accuracy | ±5% |
| Input Voltage | 180–260 V AC, 0.8 A |
| Enclosure Rating | IP22 |
| Dimensions (L×W×H) | 22.9 × 18.1 × 13.3 cm |
| Compliance | UL, CE, ISO 9001:2000 |
Overview
The Masterflex® L/S Economy Peristaltic Pump Model 07554-95 is a compact, single-channel peristaltic pump engineered for reliable, low-maintenance fluid transfer in laboratory and light industrial applications. Based on the well-established Cole-Parmer L/S platform, this drive unit operates via positive displacement through occlusion—rotating rollers compress elastomeric tubing against a curved pump housing to generate flow without internal valves or seals. Its brushless, unidirectional motor employs back-EMF speed regulation to maintain consistent rotational velocity across load variations, delivering stable volumetric delivery with ±5% speed accuracy. Designed for simplicity and durability, the unit features a steel enclosure rated IP22 (drip-protected against vertically falling water), stackable footprint, and green LED power indicator. It is intended for use with interchangeable L/S-series pump heads and compatible tubing—offering flexibility across viscosity ranges from aqueous buffers to moderately viscous solutions (up to ~5,000 cP, depending on tubing selection and flow rate).
Key Features
- Integrated manual speed control via precision thumbwheel—no digital display required; retains last-set RPM upon power cycle
- 1/20 HP induction motor with smooth start-up and inherent overload protection via thermal cut-off
- Robust painted steel chassis with stackable design for space-efficient benchtop deployment
- Back-EMF regulated speed control ensures repeatable performance independent of line voltage fluctuations (180–260 V AC, 50/60 Hz)
- IP22-rated enclosure provides basic environmental protection suitable for standard laboratory environments
- Compatible with multiple L/S pump head configurations—including Easy-Load®, Easy-Load II®, and Easy-Load III®—enabling rapid, tool-free tubing changes and minimized downtime
- Supports thick-wall tubing (e.g., L/S #15, #24, #35) for enhanced suction lift and high-viscosity handling
Sample Compatibility & Compliance
The 07554-95 drive is compatible with a broad range of FDA-compliant, USP Class VI-certified tubing materials—including Tygon® LFL (long-life fluoropolymer-lined), platinum-cured silicone (standard and bio-grade variants), and reinforced bioplastic alternatives. Tubing compatibility spans inner diameters from 0.8 mm to 9.6 mm, supporting flow rates from 0.42 mL/min (L/S #13, Tygon LFL) up to 2,900 mL/min (L/S #36, Tygon LFL). All configurations comply with UL 61010-1 (Electrical Safety for Laboratory Equipment) and CE marking requirements under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU). The system meets ISO 9001:2000 quality management standards at point of manufacture. While not inherently 21 CFR Part 11 compliant, audit-ready data logging can be achieved when integrated with validated third-party controllers and software platforms supporting electronic signature and change control.
Software & Data Management
As a standalone analog drive, the 07554-95 does not include embedded firmware or USB/RS-232 interfaces. However, it is fully compatible with Cole-Parmer’s optional digital control modules (e.g., Masterflex® I/P Controller Series) for remote speed adjustment, ramp profiling, and pulse-width modulation. When paired with external flow meters or gravimetric collection systems, time-stamped flow data can be recorded using LabVIEW™, MATLAB®, or custom Python-based acquisition scripts. For GLP/GMP environments, integration with validated SCADA or LIMS platforms allows traceable operation logs, user access controls, and electronic audit trails—provided the peripheral instrumentation and software are individually qualified per organizational SOPs.
Applications
This pump serves as a foundational fluid-handling solution across analytical, pharmaceutical, bioprocessing, and environmental labs. Typical use cases include: continuous buffer delivery in HPLC sample introduction manifolds; media feeding in small-scale bioreactors and chemostats; reagent dosing in automated titration or colorimetric assays; waste aspiration in cell culture hoods; and controlled eluent supply in ion chromatography systems. Its ability to support multi-head configurations (e.g., dual 07554-95 drives with Y-branch manifolds) enables parallel processing or precise mixing of two streams—ideal for formulation studies or gradient preparation where cross-contamination must be avoided.
FAQ
Does the 07554-95 support bidirectional operation?
No—the drive uses a unidirectional motor and is not designed for reverse pumping.
Can I use non-Masterflex tubing with this pump?
Yes, provided the tubing meets L/S dimensional specifications and material compatibility requirements (e.g., wall thickness, durometer, chemical resistance); however, performance and warranty coverage are guaranteed only with Cole-Parmer–certified tubing.
What is the maximum recommended operating temperature for Tygon LFL tubing?
Tygon LFL maintains mechanical integrity up to 60 °C continuously; intermittent exposure up to 80 °C is permissible with reduced service life.
Is calibration required before first use?
No formal calibration is mandated; however, users should verify flow rate against a calibrated volumetric flask or flow meter under representative conditions (tubing type, pressure head, fluid viscosity) to establish baseline performance.
How often should pump tubing be replaced?
Replacement frequency depends on operational hours, flow rate, and fluid chemistry—typically every 100–500 hours for Tygon LFL under moderate conditions; visual inspection for cracking, flattening, or loss of elasticity is the primary maintenance indicator.
