ISMATEC ISM446B Remote-Controlled Gear Pump Driver

Overview

The ISMATEC ISM446B Remote-Controlled Gear Pump Driver is a precision-engineered, industrial-grade DC motor controller designed specifically for integration with ISMATEC A-Mount-compatible gear pump heads—primarily Micropump® series units. It operates on the principle of closed-loop speed regulation via real-time electronic feedback, enabling stable volumetric flow delivery under variable load conditions typical in continuous fluid handling applications. Unlike open-loop drivers, the ISM446B continuously monitors motor back-EMF and dynamically adjusts drive current to maintain setpoint speed within ±1% tolerance—even during pressure fluctuations or viscosity changes across the pumping system. Its TENV (Totally Enclosed Non-Ventilated) PMDC motor architecture ensures reliable performance in laboratory, pilot-scale, and light industrial environments where dust ingress or intermittent moisture exposure may occur. The unit is rated for continuous duty between 1200 and 5000 rpm, with extended operational range down to 60 rpm and up to 6000 rpm for short-term use, supporting flexible method development and multi-step process sequencing.

Key Features

• True remote operation via DB15 female connector: supports analog voltage (0–5 VDC / 0–10 VDC) and current (0–20 mA / 4–20 mA) speed command inputs, plus TTL-level dry-contact start/stop control
• Closed-loop speed regulation with electronic feedback ensures ±1% speed accuracy independent of load torque variations
• Dual-mode speed monitoring output: selectable 0–10 VDC analog signal or 0–12 kHz frequency pulse train for PLC or DAQ system integration
• TENV-rated permanent magnet DC motor (0.156 HP) optimized for low-noise, high-torque delivery across wide speed ranges
• Factory-configured compatibility with ISMATEC A-Mount pump heads—no mechanical adaptation required when used with Micropump® gear heads
• Integrated mounting interface includes A-Mount adapter plate and magnetic coupling assembly for rapid head installation and alignment
• Compliant with IEC 61000-6-3 (emission) and IEC 61000-6-2 (immunity) standards for electromagnetic compatibility in shared lab environments

Sample Compatibility & Compliance

The ISM446B is not a standalone pump but a driver module intended exclusively for use with ISMATEC A-Mount gear pump heads—including Micropump® GP, GPD, and GPX series units. These heads are chemically resistant to a broad spectrum of solvents, acids, and bases when configured with appropriate rotor/stator materials (e.g., PTFE, ETFE, Viton®, or stainless steel). The driver itself does not contact fluid; therefore, material compatibility is governed entirely by the selected pump head. From a regulatory standpoint, the ISM446B meets CE marking requirements and conforms to UL 61010-1 for electrical safety in laboratory equipment. While the driver lacks built-in audit trail or user authentication, its analog/digital I/O architecture supports integration into FDA 21 CFR Part 11-compliant systems when paired with validated SCADA or LIMS platforms that enforce electronic signature, change control, and data integrity protocols.

Software & Data Management

The ISM446B operates without embedded firmware or proprietary software—it is a hardware-only analog control system. All configuration and operational logic reside externally in the user’s supervisory system (e.g., LabVIEW, MATLAB, Siemens S7 PLC, or custom HMI). Speed setpoints, start/stop commands, and real-time speed feedback are communicated via industry-standard analog and digital signals, enabling seamless interoperability with existing automation infrastructure. For GLP/GMP environments, traceability is achieved through external logging of input control signals and output feedback channels. Optional third-party signal conditioners (e.g., National Instruments USB-6009 or Phoenix Contact MINI MCR-SL-U-I) can digitize and timestamp all I/O streams, satisfying ALCOA+ data integrity principles when deployed within a validated system architecture.

Applications

• Continuous reagent dosing in automated synthesis reactors and flow chemistry platforms
• Precision solvent delivery in HPLC and preparative chromatography auxiliary systems
• Controlled feed of catalysts, initiators, or monomers in polymerization pilot lines
• Calibrated fluid introduction in sensor calibration rigs and microfluidic test benches
• Stable perfusion in bioreactor auxiliary loops requiring low-pulsation, non-contact metering
• Integration into ISO/IEC 17025-accredited testing labs for standardized fluid transfer procedures per ASTM D3427 or ISO 3104

FAQ

Is the ISM446B compatible with non-ISMATEC pump heads?
No—the ISM446B is mechanically and electrically engineered only for ISMATEC A-Mount gear pump heads. Use with other mounts (e.g., L-Mount or B-Mount) requires custom adapters and voids factory calibration.
Does the driver support programmable ramp rates or acceleration profiles?
No—ramp control must be implemented externally via the analog input source (e.g., a programmable voltage ramp generator or PLC analog output module).
Can the ISM446B operate in explosion-proof environments?
Not inherently—the TENV enclosure is not rated for Class I, Division 1 hazardous locations. Integration into such areas requires additional certified barriers and compliance verification per NEC Article 500.
What maintenance is required for long-term reliability?
The PMDC motor contains no brushes and requires no scheduled maintenance. Periodic inspection of the magnetic coupling interface and cleaning of ventilation slots (if ambient particulates exceed ISO 14644 Class 8) is recommended.
Is firmware update capability available?
No—the ISM446B contains no microprocessor or flash memory; it is an analog circuit-based driver with fixed gain and response characteristics.