Bently Nevada 3300/03-01-00 System Monitor and Keyphasor Module
The Bently Nevada 3300/03 (Part Number: 3300/03-01-00) is a fundamental component of the 3300 Machinery Protection System, serving as the system's primary diagnostic interface and Keyphasor® signal processor. While the 3300/01 manages rack power, the 3300/03-01-00 specializes in providing synchronized timing signals and managing the serial communication backbone for the entire rack. It effectively bridges the gap between raw field transducer data and the operator's analysis tools, ensuring that shaft speed and phase angle measurements are integrated accurately for machinery protection.
A critical correction to common misconceptions: the 3300/03 is a rack-based module that provides Keyphasor power and RS232 communication, rather than a field-mounted Proximitor® sensor. It enables the system to perform phase-synchronous vector analysis by providing a common timing reference across the backplane. This allows other monitoring modules in the rack to calculate complex variables like 1X vibration amplitude and phase. Built to satisfy API 670 standards, the 3300/03-01-00 is essential for any 3300 system requiring data export to a host computer or precise rotational speed measurements.
Detailed hardware parameters and operational ratings for the 3300/03-01-00:
| Parameter | Specification Details |
| Model Number | 3300/03 |
| Full Order Code | 3300/03-01-00 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Module Type | System Monitor / Keyphasor Interface |
| Input Voltage | 18 to 24 VDC (Supplied via rack backplane) |
| Power Consumption | 2.0 Watts Maximum |
| Communication Port | RS232 Serial Port (Internal/Front Access) |
| Signal Input | Keyphasor Proximity Probe Input |
| Frequency Response | DC to 10 kHz |
| Internal Diagnostics | OK LED status for module and Keyphasor probe |
| Accuracy | ±5% for displacement/vibration measurements |
| Dimensions (HxWxD) | 33.0 cm x 5.1 cm x 20.3 cm |
| Weight | 0.7 kg (Net) |
| Operating Temp | -20 °C to +65 °C |
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