ISMATEC ISM920A Flushable Peristaltic Pump

Overview

The ISMATEC ISM920A Flushable Peristaltic Pump is an industrial-grade, precision fluid transfer system engineered for demanding laboratory, pilot-scale, and process automation applications. Based on the positive displacement peristaltic principle—where fluid is moved by sequential compression of flexible tubing via rotating rollers—the ISM920A delivers pulse-free, contamination-free flow without valves, seals, or wetted pump components beyond the tubing itself. Its IP65-rated enclosure ensures reliable operation in environments subject to dust ingress and low-pressure water exposure, making it suitable for washdown-capable installations in regulated manufacturing, bioprocessing, and analytical sample handling workflows. Designed for integration into automated systems, the ISM920A supports both local operation via its intuitive 7-button keypad and full remote control through industry-standard analog and digital signals, enabling seamless synchronization with PLCs, SCADA systems, or LIMS platforms.

Key Features

• IP65-rated robust aluminum housing with stainless steel rotor assembly—enabling rapid disassembly and thorough cleaning between runs
• Precise speed control from 1 to 240 rpm with ±0.2% speed stability under load, supporting reproducible volumetric delivery across the full 0.45–3400 mL/min flow range
• Backlit LED display showing real-time rotational speed, direction of rotation (CW/CCW), and system status indicators
• Multi-mode remote interface: accepts 5 VDC TTL, 10 VDC analog, 0–20 mA, 4–20 mA current loop, and dry-contact start/stop commands
• Dedicated flush mode programmable via front panel—automatically reverses direction and runs at user-defined speed for tubing clearance and residue removal
• Modular architecture: drive unit (ISM920A), pump head (e.g., IS10039), and tubing are field-replaceable; no tools required for pump head removal
• Compliant with CE marking requirements and RoHS Directive 2011/65/EU for restricted hazardous substances

Sample Compatibility & Compliance

The ISM920A is compatible with a broad range of chemically resistant, USP Class VI-certified tubing materials—including silicone, Viton®, Tygon® B-44-3, and PharMed® BPT—ensuring compatibility with aqueous, organic, and mildly corrosive fluids. Its tubing-based fluid path eliminates cross-contamination risk and supports single-use or reusable configurations depending on application requirements. The pump meets mechanical safety standards per EN 61000-6-2 (immunity) and EN 61000-6-4 (emissions), and its design aligns with Good Manufacturing Practice (GMP) expectations for equipment used in pharmaceutical and biotech processes. While not intrinsically rated for hazardous locations, its IP65 rating supports use in non-classified cleanrooms (ISO Class 7–8) and controlled laboratory environments where routine surface sanitation is performed.

Software & Data Management

The ISM920A operates as a standalone instrument but is fully integrable into larger automation frameworks. It does not require proprietary software for basic operation; however, its analog/digital inputs enable direct interfacing with LabVIEW™, MATLAB®, or custom Python-based control scripts using standard DAQ hardware. For audit-ready environments, the pump’s operational state (speed, direction, run time, flush cycles) can be logged externally via PLC-scanned I/O registers or analog output scaling. Though the ISM920A itself does not feature onboard data logging or FDA 21 CFR Part 11-compliant electronic signatures, its deterministic behavior and repeatable performance support validation protocols under ISO 9001, ISO 13485, and ASTM D3418 for pump qualification in quality-critical workflows.

Applications

• Automated reagent dispensing and media preparation in cell culture and fermentation labs
• Continuous feed control in inline filtration, diafiltration, and tangential flow filtration (TFF) skids
• Calibration fluid delivery in analytical instrument sample introduction systems (e.g., ICP-MS, HPLC autosamplers)
• Batch dosing and fill-volume control in small-scale pharmaceutical packaging lines
• Environmental monitoring—sampling pumps for wastewater, groundwater, or air scrubber effluent analysis
• Chemical synthesis reactors requiring precise stoichiometric addition under inert atmosphere

FAQ

What tubing sizes are supported by the ISM920A with the IS10039 pump head?
The IS10039 pump head accommodates tubing inner diameters from 0.5 mm to 6.4 mm (1/16″ to 1/4″), with optimal performance observed using ISMATEC-certified tubing such as IS10039 (ID 3.2 mm, OD 7.0 mm).
Can the ISM920A be validated for GMP use?
Yes—the pump’s mechanical consistency, absence of fluid-path wear parts, and traceable speed control make it suitable for IQ/OQ/PQ validation; users must document calibration against gravimetric or timed-volume methods per internal SOPs.
Is a foot switch included with the standard ISM920A configuration?
No—a foot switch is an optional accessory (Part No. 78003-10 includes drive and pump head only); it must be ordered separately if hands-free start/stop functionality is required.
Does the ISM920A support bidirectional flow without hardware modification?
Yes—direction reversal is programmable via keypad or remote signal, with configurable ramp-up/down profiles to minimize tubing stress.
What is the maximum continuous duty cycle for the ISM920A at full speed?
Rated for indefinite continuous operation at any speed within 1–240 rpm when installed in ambient temperatures ≤40°C and with adequate ventilation; thermal protection circuitry engages automatically if internal temperature exceeds safe limits.