How will you calibrate a leveltrol in the field ?
Calculation # 1 If the calibrating liquid is water: Process Liquid Density / 1* Displacer height = mm of H2O. Calculation # 2 If the calibrating liquid is Other liquid: Process Liquid Density / Calibrating liquid density * Displacer height = mm of H2O. ( Calibrating liquid height in mm ). 1. First close both the primary isolation valves and drain the liquid inside the chamber.
2. Adjust the zero to get 0% output. 3. Connect a transparent PVC tube to the drain point as shown in hook up. 4. Fill it to the center of the top flange. 5. Adjust the specific gravity or span adjustment ( Electronic Level ). 6. Fill it up to 50 %, check linearity.