Description
Product Overview
The 23733-03 is a Bently Nevada standard accelerometer interface card built for the 3300 Series machinery protection system. It acts as a charge amplifier and signal conditioner for piezoelectric casing accelerometers, converting high-impedance raw charge signals into conditioned low-impedance velocity or acceleration signals for vibration monitors. Widely deployed on gas turbines, generators, compressors and large rotating equipment for casing vibration protection and predictive diagnostics.
Technical Specifications
| Item | Parameter |
|---|---|
| Manufacturer | Bently Nevada (GE) |
| Part Number | 23733-03 |
| Product Type | Accelerometer Interface / Charge Conditioning Module |
| Compatible System | 3300 Series Machinery Protection Rack |
| Power Supply | 18–24 VDC |
| Sensitivity | 100 mV/in/s pk (3.94 mV/mm/s pk) |
| Frequency Response | 1 Hz ~ 10 kHz |
| Operating Temperature | -40°C ~ +85°C |
| Mounting | 3300 rack plug-in card |
| Application | Turbine, generator, compressor casing vibration monitoring |
Key Features
- Charge amplification and signal conditioning for piezo accelerometers, converts charge input to usable vibration velocity output.
- Integrated filtering to suppress high-frequency noise from power plant and heavy machinery environments.
- Designed to pair with Bently Nevada casing accelerometers, feeds processed signals to 3300 vibration monitor channels.
- Rugged single-width card form factor for installation inside standard 3300 series subracks.
- Supports continuous machinery health monitoring, provides inputs for alarm and trip logic in protection systems.
Installation & Testing Notes
- Handle with ESD protection; static discharge can damage sensitive charge amplifier circuitry.
- Install only inside matched Bently 3300 rack and verify 24VDC rack power before insertion.
- After wiring accelerometer to module input, perform loop check and vibration signal calibration.
- Inspect PCB, edge connector and solder joints for corrosion or damage before field replacement.
- Validate signal output using vibration test source during commissioning to confirm scaling matches monitor configuration.
FAQ
Q: Which system does 23733-03 belong to? A: It is a dedicated interface module for the Bently Nevada 3300 machinery protection system, not for the later 3500 series.
Q: What signal does this module process? A: It receives charge signals from piezoelectric accelerometers and outputs conditioned velocity vibration signals to the monitor.
Q: Can it be used for shaft relative vibration? A: No. This module is for casing accelerometer signals. Shaft vibration uses proximity probe and proximitor assemblies.
Start Chat
Send an Email
