Pressure Transducer Problems

Dear all,

I am trying to measure the pressure drop in microchannels with the simple flow setup. I am using a Setre pressure transducer with single inlet for pressure drop measurement. It takes a long time nearly 3hrs for the pressure transducer to give a steady value. Any idea why this happens? when i put just the tubing alone in the setup, it takes about 30mins for saturation. the setup is with a simple syringe pump-->tubing--> pressure transducer-->microchannel-->outlet to a container. The typical size of channel is about 10micron deep 100micro wide and about 2cm long.

Thanks

Barani