Yokogawa P3F30-CGGGG-AAEFA-BAAAA Vortex Flowmeter Unit

Module Feature

P3F30-CGGGG-AAEFA-BAAAA is Yokogawa DYF series vortex shedding flowmeter with full code model variant.

It adopts vortex shedding principle, detects frequency of vortex generated by bluff body, converts frequency signal into flow rate. It supports 4-20mA analog output with HART digital overlay. The multivariable version can integrate temperature/pressure sensor for mass flow calculation of saturated / superheated steam and gas. Flange mounting, available for ATEX / IECEx hazardous area certification, wide turndown ratio, low pressure loss. Widely stocked as maintenance spare for power plant, refinery and chemical process flow measurement skid.

Working principle

Fluid passes through the bluff body inside the meter body, regular vortexes are generated alternately on both sides. Piezoelectric sensor captures vortex frequency signal; frequency is proportional to volumetric flow velocity. Transmitter circuit calculates volume flow, and compensates by temperature and pressure signal for mass flow. HART channel transmits tag, engineering unit and diagnostic information to DCS system. Continuous self-check monitors sensor signal, over-range and electronic failure.

Onboard components

Bluff body, piezoelectric vortex sensor, signal conditioning PCB, HART communication chip, LCD local indicator, temperature/pressure sensing element (multi-variable type), terminal block and explosion-proof aluminum housing.

LED indicators

Local LCD screen displays flow value, totalizer, tag, temperature, pressure and fault code.

Hardware self‑diagnosis

Built-in supervision detects sensor signal loss, over-range, electronics fault and loop wiring fault. Configuration and fault diagnosis are completed by HART communicator or Yokogawa FieldMate software.

Programming softwareFieldMate, used for K-factor setting, density compensation, totalizer reset and fault log reading.

Electrical & Process Parameters

Model:P3F30-CGGGG-AAEFA-BAAAA Brand:Yokogawa Device type:DYF vortex shedding flowmeter Function:Volumetric and mass flow measurement for gas, steam and liquid

Mechanical & Structure

Mounting:Flange inline installation Protection class:IP67 Housing:Stainless steel meter tube + aluminum transmitter housing

Environmental

Operating temperature:-40℃ ~ +85℃ (electronics side; process temperature depends on version) Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, ATEX / IECEx optional, SIL2 available Status:Original Yokogawa process instrument spare

Installation

Isolate process medium and depressurize pipeline before replacement. Reserve sufficient upstream and downstream straight pipe section, avoid strong vibration, set K-factor and density compensation, test 4-20mA and HART communication after commissioning.

Interface

Two-wire 4-20mA+HART terminal, flange process connection.

Diagnostic

No flow reading: Sensor failure, low flow below threshold, blocked bluff body. Unstable reading: Vibration interference, insufficient straight pipe, turbulent flow. No HART communication: Missing 250Ω resistor, reversed polarity or transmitter electronics damage.

Product Brief

P3F30-CGGGG-AAEFA-BAAAA flowmeter, Yokogawa DYF vortex instrument spare for steam and gas flow measurement skid replacement.