CoMetro CP-M Series Precision Constant Flow Pump
| Brand | CoMetro |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | CP-M Pump |
| Flow Rate | 10 mL/min |
| Maximum Pressure | 6000 psi |
| Accuracy | ±2% |
| Precision (RSD) | 0.2% |
| Dimensions | 175(H) × 225(W) × 305(D) mm |
| Weight | 11 kg |
| Power Supply | 230 V / 115 V, 50 / 60 Hz |
| Fluid Path Materials | PEEK or 316 Stainless Steel |
| Control Interface | Keypad & RS232 Digital Communication |
| Remote Input Options | Frequency Input, 0–5 V / 0–10 V Analog Input |
Overview
The CoMetro CP-M Series Precision Constant Flow Pump is an electronically controlled, positive-displacement peristaltic-free pump engineered for high-pressure, low-pulsation liquid delivery in analytical, synthetic, and process-critical laboratory environments. Unlike conventional peristaltic or diaphragm-based systems, the CP-M employs a motor-driven dual-piston architecture with active electronic compensation and non-contact pressure sensing to achieve true constant flow under dynamic backpressure conditions—up to 6000 psi (414 bar). Its core operating principle relies on closed-loop velocity and pressure feedback, where real-time motor torque modulation compensates for fluid compressibility, viscosity shifts, and system resistance changes. This architecture ensures stable volumetric delivery across variable load conditions, making it suitable for applications demanding strict flow reproducibility—including HPLC auxiliary pumping, microreactor feed control, catalyst screening, and continuous-flow synthesis.
Key Features
- Ultra-low pulsation design achieved via low internal-volume accumulator and rapid-fill actuation mechanism
- Integrated non-contact pressure transducer enabling real-time pressure monitoring without fluid-path intrusion or seal degradation
- Dual-control architecture: local keypad operation + RS232 digital interface for remote integration into LabVIEW, MATLAB, or custom SCADA systems
- Configurable analog input (0–5 V / 0–10 V) and frequency input for external flow setpoint modulation
- Onboard bypass valve and self-cleaning module to prevent crystallization, particle accumulation, or cross-contamination during intermittent operation
- Modular fluid path options: chemically inert PEEK for aggressive solvents or high-purity 316 stainless steel for elevated temperature and pressure stability
- Programmable safety limits including maximum/minimum pressure thresholds, runtime alerts, and fault-state logging
Sample Compatibility & Compliance
The CP-M Series supports a broad range of solvents, reagents, and suspensions typical in organic synthesis, pharmaceutical development, and materials science. Its fluid-contact materials comply with USP Class VI biocompatibility standards when configured with PEEK components—enabling use in cell culture media delivery, enzymatic assay feeding, and preclinical formulation studies. The pump’s mechanical design adheres to ISO 8573-1 for compressed-air-free operation (where applicable), and its electrical architecture conforms to IEC 61010-1 for laboratory equipment safety. When deployed in regulated environments, audit-trail-capable firmware versions support 21 CFR Part 11 compliance through timestamped parameter logging, user-access controls, and electronic signature-ready configuration files.
Software & Data Management
The CP-M Series communicates via standard RS232 serial protocol with ASCII command syntax, allowing seamless integration into existing laboratory informatics infrastructure. Optional CoMetro PumpControl Suite (v3.2+) provides graphical real-time monitoring of flow rate, actual pressure, motor load, and alarm status—alongside exportable CSV logs for GLP/GMP documentation. All firmware updates are digitally signed and validated; configuration backups include cryptographic checksums to ensure data integrity. For automated workflows, the pump accepts TTL-triggered start/stop commands and supports synchronous triggering with UV-Vis detectors or mass spectrometers via configurable I/O ports.
Applications
- High-pressure liquid delivery in preparative HPLC and SFC systems requiring stable gradient formation
- Continuous-flow chemistry setups involving exothermic reactions, photochemical activation, or gas–liquid mixing
- Calibration and validation of flow sensors, Coriolis meters, and microfluidic devices
- Controlled reagent dosing in electrochemical cells, fuel cell testing rigs, and corrosion studies
- Teaching laboratories for fluid mechanics, process control theory, and instrumentation engineering courses
- QC/QA labs performing dissolution testing, extractables/leachables analysis, and excipient compatibility screening
FAQ
What is the minimum programmable flow rate for the CP-M205 model?
The CP-M205 supports a minimum flow rate of 0.001 mL/min with full pressure capability up to 6000 psi.
Does the CP-M Series support pressure-controlled mode, or is it flow-only?
The pump operates exclusively in flow-rate control mode; however, real-time pressure feedback is provided for safety interlocking and system diagnostics.
Can the pump be integrated into a PLC-based industrial control system?
Yes—via analog voltage input (0–10 V) or RS232 ASCII commands, with configurable response latency and handshake protocols.
Is firmware upgrade available remotely?
Firmware updates require local USB connection using CoMetro’s certified update utility; no over-the-air or network-based update functionality is implemented for security and traceability reasons.
What maintenance intervals are recommended for long-term reliability?
Piston seals and check valves should be inspected every 500 hours of operation; full calibration verification is recommended annually or after any major fluid-path modification.
