Cole-Parmer 7490005 Single-Channel Precision Syringe Pump
| Brand | Cole-Parmer |
|---|---|
| Origin | USA |
| Model | 7490005 |
| Flow Rate Range | 0.2 µL/hr to 500 mL/hr |
| Syringe Compatibility | 10 µL – 60 mL |
| Accuracy | ±0.5% |
| Repeatability | ±0.2% |
| Bidirectional Operation | Yes |
| Communication Interfaces | RS232, TTL, Analog Voltage/Current Output |
| Sterilizable Components | 316 Stainless Steel Syringe Body |
| Pulse Mode | Supported |
| Footswitch Compatible | Yes |
Overview
The Cole-Parmer 7490005 Single-Channel Precision Syringe Pump is an engineered solution for highly controlled, low-flow liquid delivery in analytical, pharmaceutical, and life science laboratories. Operating on a precision lead-screw actuation principle, this pump delivers volumetric accuracy through direct mechanical displacement of syringe plungers—eliminating reliance on peristaltic compression or pressure-driven flow. Its design adheres to fundamental fluid mechanics principles governing laminar flow in cylindrical chambers, enabling predictable, pulse-free infusion across six orders of magnitude in flow rate (0.2 µL/hr to 500 mL/hr). The system is optimized for applications requiring strict adherence to GLP-compliant protocols, where traceable calibration, minimal dead volume, and material compatibility with aggressive solvents or biological buffers are non-negotiable.
Key Features
- Ultra-Wide Flow Range: Programmable from 0.2 µL/hr (equivalent to ~0.0033 µL/min) up to 500 mL/hr, supporting both ultra-microinfusion (e.g., intracerebral dosing in rodent models) and high-throughput reagent dispensing.
- 316 Stainless Steel Syringe Body: Unlike borosilicate glass syringes prone to breakage and adsorption artifacts, the integrated stainless steel barrel withstands autoclaving at 121°C/15 psi for ≥20 cycles—ensuring sterility assurance and eliminating cross-contamination risks in cell culture or aseptic processing environments.
- Bidirectional Control: Full reversible plunger motion enables not only precise injection but also aspiration, facilitating closed-loop recirculation, sample recovery, or active mixing protocols without external valving.
- Pulse-Free & Pulse-Modulated Delivery: Continuous mode ensures steady-state laminar flow; programmable pulse mode allows adjustable duty cycle and frequency—critical for minimizing shear stress during sensitive cell or tissue perfusion studies.
- Industrial-Grade I/O Architecture: Standard RS232 serial interface supports ASCII command protocol for integration into LabVIEW, Python-controlled automation suites, or SCADA systems; TTL-triggered start/stop enables synchronization with electrophysiology rigs or imaging acquisition hardware.
- Analog Signal Output: Real-time 0–5 V or 4–20 mA analog output mirrors current flow rate or position—enabling closed-loop feedback control when paired with external PID controllers or data loggers compliant with ISO/IEC 17025-accredited metrology workflows.
Sample Compatibility & Compliance
The 7490005 accommodates standard Luer-lock syringes from 10 µL to 60 mL capacity, including polypropylene, glass, and PTFE-lined variants. Its stainless-steel drive mechanism exhibits chemical resistance to >95% of common HPLC solvents, aqueous buffers (pH 1–14), and sterilants (e.g., hydrogen peroxide vapor, ethanol). The device meets IEC 61000-6-2/6-3 for electromagnetic immunity and emissions, and its firmware architecture supports audit-trail generation for FDA 21 CFR Part 11 compliance when used with validated software platforms. All mechanical components conform to ASTM F899-22 specifications for medical-grade stainless steel surfaces.
Software & Data Management
No proprietary GUI is bundled; instead, the pump implements a documented ASCII command set over RS232 (9600 baud, 8N1), allowing seamless integration with open-source or enterprise-grade laboratory information management systems (LIMS). Command syntax supports real-time parameter interrogation (e.g., GET RATE?, GET POS?), asynchronous status polling, and multi-step program loading via script files. When deployed in regulated environments, timestamped command logs—including operator ID, parameter values, and execution timestamps—can be exported for GMP batch record reconciliation. Optional third-party drivers (e.g., PySerial, MATLAB Instrument Control Toolbox) enable automated calibration verification against NIST-traceable flow standards.
Applications
- Chronic intravenous or intracerebroventricular infusion in preclinical pharmacokinetic studies (PK/PD modeling)
- Controlled reagent addition in automated titration or kinetic assay platforms
- Microfluidic chip priming and buffer exchange in organ-on-chip systems
- Calibration fluid delivery for mass spectrometry internal standard introduction
- Aseptic media supplementation in bioreactor seed train operations
- Time-resolved electrochemical sensor conditioning with nanoliter-level electrolyte dosing
FAQ
Is the 7490005 compatible with syringes smaller than 10 µL?
No—minimum syringe volume is 10 µL due to mechanical resolution limits of the lead-screw drive train and plunger detection threshold.
Can flow rate accuracy be validated per ISO 8599?
Yes—the pump’s ±0.5% accuracy specification is determined per ISO 8599 Annex B using gravimetric measurement with Class A analytical balances and temperature-controlled environmental chambers.
Does the unit support remote firmware updates?
No—firmware is factory-programmed and immutable; configuration changes are limited to runtime parameters via serial commands.
What is the maximum allowable backpressure?
Rated for continuous operation up to 100 psi (6.9 bar); transient spikes to 150 psi are tolerated for ≤5 seconds without performance degradation.
Is there a CE mark for use in EU-based clinical research labs?
Yes—the device carries CE marking under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), with technical documentation available upon request for notified body review.
