Enhancing DP Level Measurement Accuracy with Yokogawa’s Compensating Capillary System
Accurate level measurement is vital in process industries, particularly when dealing with chemicals stored in pressurized or sealed tanks. Differential Pressure (DP) transmitters, equipped with remote diaphragm seals, are commonly used for this purpose. However, temperature fluctuations can significantly impact the accuracy of these measurements due to the thermal expansion or contraction of the fill fluid within the capillaries.
The Challenge of Temperature Variations
In outdoor installations, ambient temperatures can vary widely. For instance, in the UK, wide daily temperature variances are not uncommon. Such variations can cause the fill fluid in the capillaries to expand or contract, leading to erroneous DP readings. This inaccuracy can result in overfilling or underfilling tanks, posing safety risks, potential environmental hazards, and operational inefficiencies.
DP-Flow Ltd's Innovative Solution: The Yokogawa Compensating Capillary