BENTLY 3500/22-01-01-00 high-precision speed & keyphasor monitoring module

BENTLY 3500/22-01-01-00 is a high-precision speed & keyphasor monitoring module developed by Bently Nevada (now part of Baker Hughes, a GE company), serving as a core component of the 3500 Series Rotating Machinery Protection and Monitoring System. It is specifically designed to measure rotational speed, provide key phasing references, and trigger safety interlocks for high-speed rotating equipment (e.g., turbines, generators, compressors, and pumps). Its core value lies in ensuring accurate speed monitoring (critical for preventing overspeed accidents) and enabling phase-correlated vibration analysis (for precise fault diagnosis). Below is its comprehensive detailed information:

I. Core Technical Parameters

Category	Specific Specifications
Applicable System	Bently Nevada 3500 Series Rotating Machinery Protection & Monitoring System; fully compatible with 3500/10 (single-frame) and 3500/20 (multi-frame) system frames
Model Decoding	- 3500/22: Base model (speed & keyphasor monitoring module)- 01: Input configuration (1 speed channel + 1 keyphasor channel)- 01: Output configuration (2 Form C relay outputs + 1 analog output)- 00: Optional features (standard industrial version, no hazardous area certification)
Input Compatibility	- Sensor type: Magnetoelectric proximity probes (e.g., Bently 3300 XL 8mm, 2000 Series) or active Hall-effect sensors- Input signal: AC pulse (from magnetoelectric probes, 0.1-10V peak-to-peak) or digital pulse (from Hall sensors)- Input impedance: ≥50kΩ (for AC signals); ≤1kΩ (for digital signals)- Number of teeth (gear input): 1-120 teeth (programmable, default 60 teeth for standard speed calculation)
Speed Measurement Performance	- Measurement range: 0.1-30,000 RPM (low-speed coverage for pumps; high-speed for turbines)- Measurement accuracy: ±0.1 RPM (at 1000 RPM); ±0.01% of reading (at ≥10,000 RPM)- Update rate: 100ms per reading (ensures real-time response to speed fluctuations)- Overspeed detection latency: <50ms (critical for emergency shutdown of high-speed machinery)
Keyphasor Function	- Output signal: 1 pulse per revolution (TTL level, 5V high/0V low)- Phase accuracy: ±1° (relative to shaft rotation, supports phase-correlated vibration analysis for fault localization, e.g., rotor imbalance, misalignment)- Trigger source: Synchronized with speed input (gear tooth or probe gap)
Output Configuration	- Relay outputs: 2 Form C (changeover) relays per module; contact rating: 30V DC/2A, 250V AC/5A (for alarms/interlocks: e.g., low speed, overspeed, keyphasor loss)- Analog output: 1 channel of 4-20mA DC (proportional to speed; 4mA = 0 RPM, 20mA = full-scale RPM, programmable range)