👉 Instrumentation fluid, also known as process fluid or measurement fluid, is a specialized liquid used in industrial and laboratory settings to monitor and measure critical process parameters such as temperature, pressure, flow rate, and composition. This fluid typically contains additives that change its physical properties (like viscosity or color) in response to specific conditions, allowing for accurate and reliable measurements. These changes are detected by sensors connected to a control system, which then processes the data to provide real-time insights into the process, ensuring optimal performance and safety. The choice of instrumentation fluid depends on the specific application and the range of conditions it needs to withstand, such as high temperatures or corrosive environments.