The flow sensor board have one aboard function

• This new version of vacuum differential detection replaces the previous vacuum differential since June 2008.
• Replace the flow sensor board when when the flow test is malfunctioning.
• Replace the digital potmeter when the positioning is malfunctioning.

• Digital pot which is used for positioning the pipettes on carousel.
• Replace the digital potmeter ESRI030920 when the positioning is malfunctioning.