The Digital 300 is an all-digital instrument that is based on the standard 300 series flow controller. This digital version uses the same base, flow shunting arrangement, and sensor as the analog 300 series.
The sensor is operated in the same “constant temperature above ambient” manner as the analog 300 series. The valve is essentially the same except some metal has been removed from the sides of the orifices and pole pieces to make room for the cover.
The coil cover has been modified to reduce the fringing magnetic fields.
Mechanically the Digital 300 series has the same fitting, spacing and mounting-hole arrangements as the analog 300 series and with consideration given for its additional height, could be a drop in replacement for improved control and flexibility.
Files
