IKA ROTAVISC LO-VI HELI COMPLETE Rotational Viscometer

Overview

The IKA ROTAVISC LO-VI HELI COMPLETE is a high-precision benchtop rotational viscometer engineered for reliable, reproducible viscosity measurements of low-to-high-viscosity Newtonian and non-Newtonian fluids across research laboratories, quality control environments, and industrial R&D settings. Based on the Couette principle, it measures dynamic viscosity by quantifying the torque required to rotate a spindle at a defined angular velocity within a fluid sample under controlled shear conditions. Its integrated HELISTAND electric lift mechanism enables programmable, smooth vertical movement of the measuring system—ensuring consistent immersion depth, eliminating operator-induced variability, and supporting standardized test protocols such as ASTM D2196, ISO 2555, and DIN 53019. Designed and manufactured in Staufen, Germany, the instrument complies with IEC 61010-1 for electrical safety and meets electromagnetic compatibility requirements per EN 61326-1.

Key Features

• Electrically actuated HELISTAND lift system with 142 mm total travel and 61 mm active stroke—enabling precise, repeatable submersion and withdrawal of spindles at user-defined speeds;
• 4.3″ full-color TFT touchscreen interface with intuitive menu navigation, real-time graphical display of viscosity vs. time or shear rate, and built-in electronic level calibration aid;
• Continuous speed control from 0.01 to 200 rpm with ±0.01 rpm resolution—supporting both steady-state and ramp-mode (RAMP function) measurements for thixotropy, yield stress, and flow curve analysis;
• Integrated PT100 temperature sensor port and optional external temperature probe support—enabling simultaneous viscosity–temperature profiling compliant with ISO 7885 and ASTM D445;
• Comprehensive torque measurement capability (0.0673 mN·m full-scale) with ±1% accuracy and ±0.2% repeatability—validated per ISO 17025-accredited calibration procedures;
• Dual communication interfaces (RS-232 and USB) for direct data export and remote operation via IKA LabWorld software or third-party SCADA/LIMS systems;
• Robust mechanical architecture including 16 mm diameter support column, integrated clamping arm, and overload protection circuitry—designed for long-term stability in regulated environments.

Sample Compatibility & Compliance

The ROTAVISC LO-VI HELI COMPLETE accommodates a wide range of sample geometries and rheological behaviors. It supports standard spindles SP1–SP4 (included), as well as optional T-shaped spindles for low-viscosity liquids and ultra-high-viscosity pastes. Sample containers up to 600 mL volume are compatible with the fixed base configuration. The system operates safely within ambient conditions of 5–40 °C and ≤80% relative humidity (non-condensing), and its −100 to +300 °C temperature range—when paired with certified cryogenic or heating baths—supports testing under extreme thermal conditions. All firmware and hardware design elements adhere to GLP/GMP documentation requirements, including audit-trail-capable calibration logging, user-access-level management, and timestamped measurement records—fully compatible with FDA 21 CFR Part 11 readiness when deployed with validated software configurations.

Software & Data Management

IKA LabWorld software (optional, Windows-compatible) provides advanced data acquisition, visualization, and reporting functions—including customizable report templates, statistical process control (SPC) charts, and export to CSV, PDF, or Excel formats. Raw measurement data—including torque, speed, temperature, time, and calculated viscosity—is stored with metadata (operator ID, date/time stamp, calibration status, and method name). The instrument’s internal memory retains up to 1,000 measurement series, each with full parameter traceability. USB mass storage mode allows direct file transfer without host software. For integration into enterprise QA/QC workflows, the RS-232 interface supports ASCII-based command protocols enabling bidirectional communication with LIMS or MES platforms under validated SOPs.

Applications

• Quality assurance of lubricants, resins, adhesives, and polymer melts in chemical manufacturing;
• Rheological characterization of pharmaceutical suspensions, ointments, and injectables per USP <911> and Ph. Eur. 2.9.35;
• Food texture analysis—including sauces, dairy products, and plant-based alternatives—aligned with ISO 10499 and AOAC methods;
• Academic research on shear-thinning behavior, viscoelastic transitions, and temperature-dependent flow properties;
• Process validation studies requiring documented repeatability and traceable calibration against NIST-traceable standards.

FAQ

What spindle sets are included with the ROTAVISC LO-VI HELI COMPLETE?
The instrument ships with the standard SP1–SP4 spindle set, HELISTAND electric lift stand with T-spindle adapter, protective guard frame, PT100 temperature probe, and mounting accessories.
Can the viscometer be used with external temperature baths?
Yes—via the integrated PT100 input and optional bath-compatible spindle holders, enabling precise temperature control from −100 °C to +300 °C using certified circulators.
Is the device compliant with FDA 21 CFR Part 11 requirements?
The hardware supports Part 11 compliance when operated with validated IKA LabWorld software, including electronic signatures, audit trails, and role-based access control.
What is the maximum sample volume supported?
Standard operation supports containers up to 600 mL; larger volumes may be accommodated with custom fixtures and validated methodology.
Does the system support automated method programming?
Yes—RAMP mode, timer-controlled runs, and multi-step protocols can be preconfigured and recalled via the touchscreen or LabWorld software.