This flow sensor is capable of detecting Fluorinert fluid flow and temperature. It has two
buffered voltage outputs
as well as a built-in calibration circuit. The output of the alarm set points are 6 amp relay contacts
that can be used to
customer process applications. One buffered voltage output is available for
flow and a second buffered voltage output is available for temperature monitoring. The flow sensor is a
fixed position, single-point flow and temperature switch. The operation of the sensing element is based
upon the thermal dispersion principle: A low-powered heater is used to produce a temperature
differential between two Resistance Temperature Detectors (RTD's). The RTD temperature differential
varies as a function of forced convection for flow measurement. The measurement of the fluid's temperature
is obtained from the non-heated RTD.
This flow sensor is calibrated for use with Fluorinert (FC-40) which is a fluid with thermal stability,
high dielectric strength and having a non-solvent characteristic.
All designs are custom made to customer specifications.