Yokogawa P3T32-CGG1A-AA1NA-BBAAA Vortex Flowmeter Unit

Module Feature

P3T32-CGG1A-AA1NA-BBAAA is a full-code variant of Yokogawa DYF series vortex shedding flowmeter.

It adopts vortex shedding bluff body principle, the piezoelectric sensor captures the alternating vortex frequency signal, and the transmitter converts frequency signal into flow value. It supports 4-20mA analog output with HART digital overlay. Multivariable configuration can integrate temperature and pressure sensors for mass flow compensation of saturated / superheated steam and process gas. Flange connection, optional ATEX / IECEx hazardous area certification, wide turndown ratio and low pressure loss. Widely stocked as maintenance spare for power plant, refinery and chemical process flow skid.

Working principle

When fluid passes the internal bluff body, regular vortexes are generated alternately.

Piezoelectric element picks up vortex vibration signal, vortex frequency is proportional to volumetric flow velocity. Multivariable version calculates compensated mass flow by real-time temperature and pressure data. HART channel transmits tag, engineering unit and diagnostic information to DCS. Continuous self-check monitors sensor signal, over-range and electronic circuit status.

Onboard components

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

LED indicators

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

Hardware self‑diagnosis

Built-in supervision detects weak sensor signal, over-range, electronic fault and loop wiring failure. Configuration and calibration 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:P3T32-CGG1A-AA1NA-BBAAA Brand:Yokogawa Device type:DYF vortex shedding flowmeter Function:Volumetric and mass flow measurement for liquid, gas and steam

Mechanical & Structure

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

Environmental

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

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

Installation

Depressurize and isolate the process pipeline before replacement.

Reserve sufficient upstream and downstream straight pipe sections, avoid strong vibration. Set K-factor and medium compensation parameters, verify 4-20mA output and HART communication after commissioning.

Interface

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

Diagnostic

No flow reading: sensor damage, flow below measuring threshold, bluff body blocked. Unstable reading: insufficient straight pipe section, pipeline vibration, turbulent flow. HART communication failure: missing 250Ω resistor, reversed polarity or transmitter hardware fault.

Product BriefP3T32-CGG1A-AA1NA-BBAAA flowmeter, Yokogawa DYF vortex instrument spare for steam and gas flow measurement skid replacement.