Lamy Rheology B-ONE TOUCH Portable Rotational Viscometer

Overview

The Lamy Rheology B-ONE TOUCH Portable Rotational Viscometer is an engineered solution for field-deployable and laboratory-based viscosity characterization of Newtonian and non-Newtonian fluids. Based on Couette flow principle, it employs a precision-controlled motor-driven spindle immersed in the sample to measure torque resistance at defined rotational speeds. Unlike traditional spring-based viscometers, the B-ONE TOUCH utilizes a direct-drive electronic motor with no mechanical springs—eliminating drift, calibration drift due to spring fatigue, and the need for annual spring replacement or leveling adjustments. Its robust aluminum alloy housing, integrated ergonomic carrying strap, and self-contained 1-hour battery backup enable reliable operation in production lines, quality control checkpoints, R&D labs, and remote sampling sites without dependency on fixed infrastructure.

Key Features

• Spring-free electromagnetic drive system ensures long-term stability and eliminates periodic recalibration associated with mechanical torsion springs.
• High-torque motor maintains constant rotational speed across the full viscosity range (1–540,000,000 mPa·s), even for highly viscous or shear-thinning materials.
• 7-inch capacitive touchscreen interface supports multilingual operation (English, French, German, Spanish, Chinese), real-time parameter visualization (viscosity, torque, speed, time, temperature), and intuitive method setup.
• Onboard user authentication with customizable username and 4-digit password enforces access control—critical for regulated environments requiring operator traceability.
• Integrated battery allows uninterrupted measurements for up to 60 minutes during power outages or mobile use—validated under ISO/IEC 17025-compliant operational conditions.
• Compact modular design: probe (Ø85 × 310 mm) and control unit (265 × 125 × 65 mm) weigh only 2 kg total, shipped with protective carry strap and optional ruggedized transport case.

Sample Compatibility & Compliance

The B-ONE TOUCH accommodates standard DIN, ASTM D2196, and ISO 2555-compliant spindles (including LV, RV, HA, HB geometries) and accepts optional Pt100 temperature probes for simultaneous viscosity–temperature profiling. It meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1). While not intrinsically rated for hazardous areas, its sealed electronics and IP54-rated enclosure provide dust and splash resistance suitable for industrial QC floors. Data integrity aligns with ALCOA+ principles: all measurements include timestamp, operator ID, spindle ID, temperature, and rotational parameters—supporting GLP/GMP documentation workflows where audit trails are mandated.

Software & Data Management

The instrument operates autonomously but integrates seamlessly with Lamy’s VISCO RM software via USB or RS232 for advanced protocol scripting, multi-point rheological sweeps, and automated report generation (PDF/CSV). All measurement methods—including timed thixotropy protocols, step-shear sequences, and yield stress approximations—are stored onboard (up to 100 methods). Raw torque–speed–time data can be exported directly to USB flash drives without PC dependency. Optional analog 4–20 mA output enables integration into SCADA or DCS systems for continuous inline viscosity monitoring in pilot-scale reactors or filling lines.

Applications

This viscometer serves as a primary tool for routine QC and R&D across sectors governed by strict material consistency standards. In food manufacturing, it verifies ketchup, mayonnaise, and dairy cream consistency per USP and ISO 11357-7. In pharmaceuticals, it supports formulation development of gels, suspensions, and ointments compliant with FDA 21 CFR Part 11 when paired with VISCO RM’s electronic signature and audit trail modules. Cosmetics labs use it to characterize shear-thinning behavior of shampoos and lotions; paint and ink producers validate dispersion stability and sag resistance per ASTM D1200 and ISO 2555. Academic researchers apply it to polymer melts, nanofluids, and biopolymer hydrogels where portability and reproducibility are critical.

FAQ

Does the B-ONE TOUCH require leveling before each measurement?
No. Its active motor control and spring-free architecture eliminate sensitivity to orientation—measurements remain accurate regardless of surface inclination.
Can it measure thixotropic behavior?
Yes. Users define custom time-dependent protocols (e.g., 30 s at 10 rpm → 60 s at 100 rpm) to quantify structural breakdown and recovery kinetics.
Is temperature compensation supported?
When used with an optional Pt100 sensor, the instrument automatically applies temperature correction to viscosity values using user-defined coefficients or built-in ASTM D445 reference tables.
How is data security managed for regulated industries?
Each measurement logs operator ID, timestamp, method ID, and environmental parameters. Password-protected access and encrypted USB export meet baseline requirements for FDA 21 CFR Part 11 Subpart B compliance.
What spindle configurations are compatible?
All standard Lamy spindles (LV-1 through HV-4) and geometry-specific adapters (cone-plate, vane, ultra-low-volume) are mechanically and firmware-compatible via bayonet mount.