... us Integrated ultrasonic level meter LLXK-MR series resistance rotary sealing material level controller: Application l metallurgy, chemical industry, petroleum ... device the l different specific gravities detection blades l high temperature type ≤ 300 °C material environment Use Upper and ... / min Medium density ≥ 0.3g/cm3 (large leaves) Ambient temperature -30 ~ +80 °C Power supply AC24V, 110V, 220V, ...