Overview
Manuals
Core Technical Specifications
Hardware Integration Details
Features:
- For CA... type piezoelectric accelerometers and CP... type dynamic pressure transducers
- Configurable high-pass and low-pass filters
- Optional 2-wire current or 3-wire voltage transmission
The IPC 704 signal conditioner converts the chargebased signal coming from a piezoelectric transducer into a current or a voltage signal. This current or voltage signal is transmitted to the processing electronics via any standard 2-wire or 3-wire transmission cable. This method is advantageous as it avoids having to use expensive low-noise cables that are necessary to transmit charge signals.
The current modulation technique allows a transmission distance of over 1000 m. A GSI galvanic separation unit is required for this configuration. The IPC 704 electronic circuitry is fully floating and incorporated into a moulded aluminium enclosure. The conditioner has configurable high-pass and low-pass filters and an optional integrator. In addition, RFI filters protect the input and output against radio-frequency interference and other electromagnetic influences.
The IPC704 244-704-000-042 Vibro-Meter Legacy vibration signal conditioner may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Vibro-Meter IPC704 244-704-000-042 Legacy vibration signal conditioner manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Main Function: Converts raw piezoelectric charge injection into a standard transmittable level.
Input/Output Specifications (Model -042): Factory calibrated with a specific input/output ratio, typically used in high-temperature dynamic pressure applications (e.g., depending on the configuration, a 7.5 pC/kPa input can be converted to a 50 μA/kPa output).
Housing: Rugged molded aluminum housing shielded against radio frequency interference (RFI).
Linearity Error: Extremely low deviation, limited to ±0.2%.
Transmission Range: Supports long-distance current-modulated signal transmission via standard 2-wire or 3-wire twisted-pair cable, up to 1 km (GSI electrical isolation safety unit required in the loop).
This module is optimized for specific asset tracking application requirements:
No Low-Noise Cable Required: By converting raw piezoelectric charge into a stable current/voltage signal within the turbine housing area, there is no need to lay expensive and faulty low-noise charge cables to the central control room.
Frequency Filtering: The module incorporates low-pass and high-pass hardware filters designed to eliminate irrelevant structural noise, blade passage frequencies, or mechanical background vibration hum.
Optional Integration: A built-in mathematical integrator can be ordered on demand, allowing the raw acceleration curve to be directly output as a vibration velocity index.
Hazardous Environment Classification: With appropriate buffering measures (such as built-in barriers), it can typically be deployed directly in explosion-proof areas (ATEX/IECEx certified).
