The Koehler KV5000 Series Kinematic Viscosity Bath represents a new generation of automated viscosity testing systems. Equipped with an optical flow detection system, it provides precise and repeatable viscosity measurements of petroleum and petrochemical samples according to ASTM and international standards.
The bath supports up to five optical assemblies for simultaneous testing and includes two manual positions for flexibility. Interchangeable viscometer tubes — including Ubbelohde, Cannon-Fenske, and Reverse Flow types — can be easily installed, removed, and cleaned. The system allows automated test cycles and results calculation without requiring an external PC, offering both standalone and PC-integrated operation.
The motorized stirrer ensures uniform circulation without turbulence, while the PID microprocessor control maintains stable and accurate temperature regulation across the full operating range. Dual digital displays enable real-time monitoring of both setpoint and actual bath temperature, with selectable scales (°C/°F).
An integrated cooling coil supports sub-ambient testing, and redundant safety systems protect against over-temperature or low liquid level conditions. Combined with Koehler’s Viscosity Software, the KV5000 enables automated data logging, result computation, calibration tracking, and export to Microsoft Excel or LIMS systems for advanced reporting.
