What are pressure sensing lines?

Basically pressure sensing lines are also known as impulse lines. And this sensing line enables positioning of pressure transmitters away from the process station. This line minimizes the effect of temperature on transmitter performance and operation. Also high ambient or atmospheric temperatures will affect the transmitter's mechanical components and shorten the life of its solid-state electronics. Placing the pressure transmitter away from the process station will reduce the effects of vibration and make maintenance or replacement of the pressure transmitter easier.