The Core Lab Instruments (CLI) ElectroMagnetic Viscometer (EMV) System is based on the Cambridge Viscosity SPL440 sensor and the VP2000 viscometer controller. The SPL440 sensor is installed in a dedicated oven, permitting operation from just below ambient (with air vortex or lCO2 cooling) to its maximum operating temperature of 190 °C (374 °F). The cylindrical viscosity sensor is mounted in a cradle that allows it to be orientated in four (4) fixed positions for loading, operating, and torque opening/closure of the removable end of the sensor.