Acmer WG600-2J Heavy-Duty Programmable Peristaltic Pump

Overview

The Acmer WG600-2J is a heavy-duty, microprocessor-controlled peristaltic pump engineered for continuous, high-flow fluid transfer in industrial and laboratory environments where precision, reliability, and operational flexibility are critical. Based on the positive displacement principle of peristalsis—where rollers compress flexible tubing to generate flow—the WG600-2J delivers pulse-free, contamination-free, and shear-sensitive fluid handling without valving or seals. Its robust mechanical architecture supports sustained operation at up to 600 rpm with programmable speed resolution of 1 rpm, enabling precise volumetric delivery across a wide dynamic range (typically 0.1–12,000 mL/min, dependent on tubing inner diameter and material). Designed for integration into automated process lines, bioreactor feed systems, chemical dosing stations, and environmental sampling platforms, the pump complies with fundamental safety and electromagnetic compatibility requirements for Class I, Division 2 industrial use.

Key Features

• Triple operational modes: Speed control, flow rate control (calibrated via tubing ID and pump geometry), and time-based dispensing with auto-shutdown
• 4-digit LED display with real-time toggle between rpm and calibrated flow rate (mL/min), supporting immediate operator verification
• Bidirectional rotation capability for priming, backflushing, or system purge applications
• Precision timing function with adjustable interval from 1 second to 99 hours—programmable for batch dosing, periodic sampling, or scheduled maintenance cycles
• Rotary encoder interface for intuitive, tactile parameter adjustment; full-speed button for rapid line fill or evacuation
• Power-loss memory retention: Restores pre-interruption settings—including mode, setpoint, and elapsed timer—upon re-energization
• Standard digital I/O and optional analog/frequency inputs (0–5 V, 4–20 mA, 0–10 kHz) enable seamless PLC or SCADA integration
• RS485 serial interface compliant with Modbus RTU protocol for remote configuration, monitoring, and data logging in networked control architectures
• Configurable status outputs (run/stop, direction, pulse frequency) support interlock logic and supervisory feedback in GMP-compliant processes

Sample Compatibility & Compliance

The WG600-2J accommodates silicone, Viton®, Tygon®, and other USP Class VI-certified tubing with inner diameters from 1.6 mm to 16 mm, permitting adaptation to low-viscosity solvents, abrasive slurries, or shear-thinning biological media. While not certified to IEC 61000-6-2/4 or ATEX standards out-of-the-box, its IP31-rated enclosure provides protection against vertically falling drips and solid objects >2.5 mm—suitable for controlled indoor environments per ISO 14644-1 Class 8 cleanrooms when used with appropriate tubing and housing. For regulated applications, users may implement 21 CFR Part 11–compliant audit trails via external SCADA systems interfaced through Modbus, and calibration records can be maintained per ISO/IEC 17025 guidelines using traceable flow meters.

Software & Data Management

No proprietary software is bundled; however, the RS485/Modbus interface enables native integration with industry-standard platforms including Ignition SCADA, LabVIEW, MATLAB, and Siemens SIMATIC WinCC. Configuration parameters (target speed, timer duration, direction flag) are addressable via standard Modbus function codes (e.g., 0x06 for preset single register, 0x10 for multiple registers). All external control signals—including analog setpoints and digital start/stop commands—are sampled at ≥100 Hz to ensure deterministic response latency (<50 ms). Event logs (start/stop timestamps, fault codes, overtemperature warnings) can be buffered locally and exported via serial dump or polled remotely for inclusion in electronic batch records (EBRs).

Applications

• Continuous reagent dosing in wastewater treatment pilot plants (e.g., coagulant or pH-adjustment chemical injection)
• Media perfusion and harvest in mammalian cell culture bioreactors (0.1–5 L/min range with silicone tubing)
• Automated sample introduction in ICP-OES and HPLC autosampler loops requiring pulseless, low-shear delivery
• In-line blending of food-grade syrups, dairy additives, or pharmaceutical excipients under sanitary operating conditions
• Calibration fluid delivery in metrology labs performing gravimetric flow verification per ISO 4064-2
• Environmental field sampling systems requiring battery-backed timed aspiration (e.g., groundwater monitoring wells)

FAQ

What tubing sizes are supported, and how does tube selection affect flow accuracy?
The WG600-2J accepts tubing IDs from 1.6 mm to 16 mm. Flow rate is calculated based on roller geometry, compression ratio, and rotational speed; therefore, accurate calibration requires entering the exact tubing ID and wall thickness into the controller or referencing Acmer’s published flow curves for each tubing type.
Is the pump suitable for sterile or aseptic processing?
It is not inherently sterile; however, when paired with gamma-sterilizable tubing (e.g., PharMed BPT) and installed in laminar flow hoods or isolators, it meets basic aseptic transfer requirements for non-critical applications.
Can the pump be validated for GMP manufacturing?
Yes—its deterministic control logic, repeatable timing, and Modbus audit trail capability support IQ/OQ protocols. Full validation requires user-defined test scripts, calibrated flow measurement, and documented risk assessment per Annex 15.
Does the device support fail-safe shutdown on motor overload or overheating?
Yes—the internal thermal cutoff disables drive output if heatsink temperature exceeds 85 °C, and error code “E02” is displayed. Recovery is automatic after cooldown.
How is flow calibration performed?
Using a calibrated gravimetric or volumetric flow meter, users perform a two-point calibration (e.g., at 100 rpm and 500 rpm) to generate a linear correction factor applied across the full speed range.