The e e thin film sensor used in ee660 operates on the hot film anemometer principle which provides accuracy down to 0 15 m s 30 ft min and high insensitivity to pollution.
Air velocity sensor schneider.
Also available center averaging flow probe kits sail switches and low cost differential pressure flow sensors.
Designed with conformal coated electronics and sealed enclosures f300 sensors area suitable for demanding applications including those in corrosive or alkaline environments.
I do not think you are using the 641 series air velocity transmitter in an appropriate application.
Air velocity and temperature sensor t dci f300 1x3 the f300 series sensors are versatile rugged high performance air velocity and air temperature sensors.
The e e ee660 airflow velocity transmitter is designed to accurately measure low air velocities.
With an air velocity sensor hardware issues like fan failures can be quickly identified before critical electronic components overheat.
The difference in the sensors is probably why you got longer life out of the pfs series which unfortunately is no longer available.
The new sensor works fine for only a few days and then starts reading almost no flow.
Air velocity sensors are ideal for providing real time feedback in air cooled systems when flow verification is key to maintaining a stable and reliable operation.
Kele carries differential pressure air velocity sensors velocity transmitters and pitot tubes ready to ship out today.
Differential pressure air velocity transducer product description the ep transducer can measure either air pressure or velocity with the flip of a switch.
Mouser offers inventory pricing datasheets for air flow sensors.
0 1 wc 0 3 000 ft min or.
Duct and panel models have two pressure and velocity options.
The ep is available in three installation configurations.
Air velocity sensor dry pressure switch wet pressure switch current monitoring current switches current transducers air quality c02 co smoke light living space outdoor.
These devices are used in an air scrubber application exhaust stack.
Any moisture or particulates in the exhaust could be causing damage to the hot wire sensor leading to the failure.
We have recently replaced a dwyer air velocity transmitter pfs1300204 with a dwyer series 641.
Air flow sensors are available at mouser electronics.
Duct panel or universal.