Product Short Description
3500/33-01-02 (149986-01) is a professional dual-channel dedicated monitoring module from the Bently Nevada 3500 Series Machinery Protection System. It serves as the core processing unit for Keyphasor speed, phase angle, rotational direction and torsional vibration reference signals. This module receives original pulse signals from Keyphasor proximity probes, performs high-precision signal conditioning, filtering, frequency counting and phase calculation, fully complies with API 670 4th Edition international standard. It outputs accurate speed, phase and synchronization reference signals to 3500 system rack, vibration analysis modules and upper monitoring systems
Description
Detailed Technical Specifications
| Parameter | Exact Specification |
|---|---|
| Product Series | 3500 Series Machinery Protection System Module |
| Main Model | 3500/33-01-02 |
| Factory Assembly Part Number | 149986-01 |
| Channel Quantity | 2 independent Keyphasor input channels |
| Applicable Sensor Type | Bently Nevada 3300 XL eddy current Keyphasor proximity probes |
| Input Signal Type | Eddy current pulse signal, square wave pulse signal |
| Input Voltage Range | 1 Vpp to 20 Vpp differential input |
| Minimum Detectable Pulse Amplitude | 1 Vpp |
| Measurable Speed Range | 1 RPM to 24000 RPM |
| Speed Measurement Accuracy | ±0.01% full scale |
| Phase Measurement Accuracy | ±0.5° electrical angle |
| Frequency Response Bandwidth | DC to 10 kHz |
| Output Signal Type | TTL level Keyphasor synchronization pulse output, system backplane digital speed/phase data output |
| Power Supply | 24 VDC system backplane power supply, supplied by 3500/15 power module |
| Operating Current Consumption | 180 mA maximum |
| Operating Temperature Range | -40 °C to +85 °C |
| Storage Temperature Range | -55 °C to +125 °C |
| Operating Humidity | 0% to 95% non-condensing |
| Mounting Mode | Standard half-slot insert installation in 3500 system rack |
| Hot-Swap Support | Fully hot-swappable, no system shutdown required for replacement |
| Signal Isolation | Complete galvanic isolation between input channels and system backplane |
| EMC Performance | Compliant with EN 61000-6-2, EN 61000-6-4, high EMI/RFI immunity |
| Module Dimensions | Standard 3500 half-slot size |
| Module Weight | 0.38 kg |
| Protection Functions | Channel open-circuit fault diagnosis, signal loss alarm detection |
| Compliance Standards | API 670 4th Edition, CE, UL, CSA, IECEx |
| Origin | United States |
Core Functional Features
- Dual Independent Keyphasor Channels
Two fully isolated independent input channels support simultaneous monitoring of two different shaft speed/phase signals; realizes multi-shaft synchronous phase comparison and rotational direction detection.
- Ultra-Wide High-Precision Speed Measurement
Covers ultra-low speed 1 RPM to high speed 24000 RPM full range; achieves ±0.01% high accuracy speed measurement, adapts to startup, shutdown, rated operation and variable speed working conditions.
- High-Precision Phase Angle Measurement
Provides ±0.5° accurate phase reference signal; is the necessary basis for vibration orbit analysis, vibration vector analysis, dynamic balance correction and shaft rubbing fault diagnosis.
- Professional Signal Conditioning & Filtering
Built-in high-performance filtering circuit completely eliminates high-frequency noise and vibration interference; extracts stable and clean Keyphasor pulse signals from complex industrial environments.
- Complete Galvanic Isolation Design
Full electrical isolation between sensor input, module circuit and system backplane; effectively isolates industrial electromagnetic interference and improves system stability.
- Built-In Real-Time Fault Diagnosis
Automatic detection of probe disconnection, cable open-circuit, signal loss and abnormal pulse faults; outputs alarm status to 3500 system and upper monitoring platform immediately.
- Hot-Swappable & Interchangeable Structure
Standard 3500 half-slot design, plug-and-play hot swap; fully compatible with all 3500 system racks, backplanes and monitoring modules, no field calibration required for replacement.
- Perfect System Synchronization Compatibility
Outputs standard Keyphasor synchronization pulse; matches 3500/22 vibration modules, 3500/40 differential expansion modules and external vibration analysis software completely.
Typical Application Scenarios
- Power Generation Industry
Speed, phase and synchronization monitoring for steam turbines, gas turbines, turbo generators and boiler feed water pumps; provides phase reference for turbine shaft vibration orbit analysis and dynamic balance maintenance.
- Oil & Gas Industry
Rotational speed and phase monitoring for natural gas compressors, pipeline booster units and refinery large rotating equipment; adapts to flammable and explosive hazardous industrial areas.
- Petrochemical & Chemical Industry
Speed-phase monitoring for centrifugal process pumps, high-power compressors, large fans and mixers; supports shaft misalignment, unbalance and rubbing fault diagnosis.
- Metallurgy & Cement Industry
Rotational speed monitoring for rotary kilns, rolling mills, heavy crushers and induced draft fans under high-temperature and strong-vibration harsh environments.
- Heavy Manufacturing & Power Equipment Testing
Startup/shutdown transient speed-phase analysis, dynamic balance testing and operation monitoring for large motor units and rotary processing equipment.
System Matching & Reliability Information
- Matching devices: 3300 XL Keyphasor proximity probes, 3300 XL proximitors, 3500 system racks/backplanes, 3500/15 power modules, 3500/22 vibration monitoring modules, 3500/40 differential expansion modules.
- Warranty period: 12 months for brand new original factory sealed products.
- Product status: Original brand new, in stock, available for global delivery.
- Installation requirement: Installed in dedicated Keyphasor slot of 3500 system rack; supports redundant configuration for high-reliability projects.
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