Vibro-Meter IPC704 244-704-000-042, A2-B07-C232-D2.32-E2-F5000-G0-H0-I0

Vibro-Meter IPC704 244-704-000-042, A2-B07-C232-D2.32-E2-F5000-G0-H0-I0

Product Introduction IPC704 is a high precision charge amplifier signal conditioner designed by Vibro-Meter for piezoelectric vibration and dynamic pressure sensors. It converts low level charge signals from piezoelectric accelerometers and dynamic pressure transducers into standard voltage or current output signals for machinery protection and condition monitoring systems. This specific model with ordering code A2-B07-C232-D2.32-E2-F5000-G0-H0-I0 includes customized filter settings, gain configuration and signal output options. It is widely deployed on rotating machinery such as gas turbines, steam turbines and centrifugal compressors for vibration measurement. IPC704 is the predecessor model to IPC707 and maintains compatibility with legacy Vibro-Meter monitoring systems.

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Description

Vibro-Meter IPC704 244-704-000-042, A2-B07-C232-D2.32-E2-F5000-G0-H0-I0

Technical Specifications

  • Product Type: Piezoelectric sensor charge amplifier / signal conditioner
  • Input Signal: Charge signal from piezoelectric sensors, pC range
  • Output Signal: Configurable voltage output or 2-wire current output
  • Supply Voltage: 18 V DC to 30 V DC, maximum consumption 25 mA
  • Frequency Response: 0.5 Hz to 20 kHz
  • Filter: Configurable high-pass and low-pass filter
  • Gain Range: Adjustable transfer function, 0.1 to 10 mV/pC or 0.1 to 10 µA/pC
  • Mounting: DIN rail mounting or base plate fixed mounting
  • Ingress Protection: IP20 when installed inside control cabinet
  • Operating Temperature: -20 °C to +70 °C
  • Humidity: 5 % to 90 %, non-condensing
  • Weight: 0.36 kg

Functional Features

  1. Convert weak charge signal from piezoelectric accelerometers and dynamic pressure sensors into usable standard measurement signal.
  2. Configurable gain settings adapt to different sensor sensitivity values.
  3. Adjustable high-pass and low-pass filters eliminate unwanted low frequency drift and high frequency noise.
  4. Optional integral function converts acceleration signal into velocity signal for vibration monitoring.
  5. 2-wire current transmission supports long distance signal transmission up to 1000 meters.
  6. 3-wire voltage output option delivers high fidelity signal for short distance measurement.
  7. Built-in sensor cable fault detection identifies cable break and short circuit.
  8. Galvanic isolation reduces ground loop interference between sensor and monitoring rack.
  9. Compact DIN rail housing saves cabinet installation space.
  10. Continuous circuit self-check verifies the integrity of measurement chain.

Application Scenarios

  • Gas turbine bearing vibration monitoring with piezoelectric accelerometers
  • Steam turbine dynamic pressure pulsation measurement
  • Centrifugal compressor casing vibration condition monitoring
  • Power generator high frequency vibration measurement
  • Petrochemical rotating machinery safety protection system

Material Composition

  • Housing: Flame retardant ABS plastic with DIN rail clip
  • Main PCB: FR4 printed circuit board with conformal coating
  • Operational amplifier: High precision low noise instrumentation amplifier chips
  • Passive components: Precision metal film resistors and polypropylene filter capacitors
  • Terminal block: Removable screw terminal block with tin plated copper contacts
  • Surge protection components: Transient voltage suppression diodes

Structural Characteristics

  • Slim rectangular DIN rail mount plastic housing.
  • Front panel carries screw terminal block for sensor input and signal output wiring.
  • Internal circuit layout separates high impedance charge input circuit and low impedance output circuit.
  • Passive convection cooling without fan.
  • Removable terminal connector simplifies wiring maintenance and replacement.

Working Principle Piezoelectric sensor generates tiny electric charge proportional to vibration acceleration or dynamic pressure. The charge enters the high impedance input circuit of IPC704. The charge amplifier converts charge variation into proportional voltage signal. The signal passes through configurable high-pass and low-pass filter to remove noise. The circuit applies selected gain and optional integration calculation. The conditioned signal converts to voltage or current output and transmits to VM600 or other machinery monitoring rack. The diagnostic circuit monitors input impedance continuously to detect broken sensor cable or short circuit.

Installation Requirements

  • Mount IPC704 on standard 35 mm DIN rail inside control cabinet.
  • Use low noise shielded coaxial cable for piezoelectric sensor connection.
  • Separate sensor signal cable from high power motor cables and power wiring.
  • Connect 24 V DC power supply and protective earth wire.
  • Set gain value, filter cutoff frequency and output mode according to sensor datasheet.
  • Test measurement chain by applying calibration signal after wiring completion.
  • Verify fault detection function by simulating sensor cable break.

Usage Notes

  • Use dedicated low noise charge cable for piezoelectric sensor connection, ordinary cable creates measurement distortion.
  • Do not apply overvoltage to input terminals.
  • Keep cabinet dry and free of oil mist and conductive dust.
  • Disconnect DC power before modifying wiring.
  • Use anti-static wristband when handling unit.
  • Replace unit immediately when permanent signal distortion or amplifier circuit failure occurs.

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