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S2EN501

The Yokogawa S2EN501 is a Vortex Flowmeter Sensor (Primary Element) from the YEWFLO family. It is the part of the flowmeter that is inserted directly into the pipeline. Its function is to detect the vortices shed by a bluff body and generate a raw pulse signal proportional to the flow rate.

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Parameters / Specifications (Typical)
Parameter Specification Details / Notes
Model Number S2EN501 This is the sensor-only model code.
Product Line Yokogawa YEWFLO Series (Vortex Flowmeter)
Device Type Insertion Type Vortex Flow Sensor
Nominal Pipe Size 1 inch (25 mm) The model number 501 often correlates to a 1" size. Must be confirmed.
Process Connection Flanged (standard) or other types (e.g., wafer) The specific connection (ANSI, JIS, DIN) and rating are defined by the complete model suffix.
Body Material Stainless Steel (typically SUS316) Standard material for most applications.
Sensing Element Piezoelectric Crystal
Fluids Liquid, Gas, Steam
Flow Velocity Range Liquid: 0.3 ~ 9 m/s
Gas/Steam: 4 ~ 90 m/s Minimum and maximum velocities to maintain accurate measurement.
Temperature Range -40 to +400 °C (-40 to +752 °F) Limited by the sensor and sealing materials.
Pressure Rating Depends on Flange Rating (e.g., ANSI 150#: 20 bar @ 100°C) Must be confirmed from the specific order documents.
Output Signal Raw pulse signal Requires a converter to generate a 4-20mA output.
Protection Rating Typically IP67 / NEMA 4X For the sensor element.