Thermo Scientific Sarasota FD900, User Manual

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User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters Thermo Fisher Scientific
Product Overview
Operation
Operation
Sensors in the sensor assembly are caused to vibrate at their natural
resistance. Gas flowing through the sensors causes changes in the vibration
frequency. The change in vibration frequency is proportional to the density
of the gas.
The instrument retractor accommodates the Sarasota ID900 density meter
with the vent valve mounted to mate with the system isolation valve. The
head of the vent valve interferes with lugs on the clamp ring, preventing
removal of the clamp ring while the bleed valve is shut. This safety feature
prevents removal of the top seal housing until seal housing pressure is
released. The retractor allows the Sarasota ID900 to be removed from the
system while leaving the seal housing still clamped to the system pipeline. It
is designed to be used with pipeline pressures up to 170 bar (2500 psi).