Features:
- Provides Isolated Keyphasor Signal Conversion For Machinery Monitoring
- Supports Multiple Inputs With Reliable Signal Integrity
- Designed For Easy Installation In 3500 Series Racks
The Bently Nevada 125800-02 is an isolated Keyphasor I/O module engineered to process signals from magnetic pickups and proximity probes, delivering precise timing information to the 3500 machinery monitoring system.
It features robust environmental tolerance with an operating range from 0°C to +65°C and storage from -40°C to +85°C, along with resistance to 95% non-condensing humidity, ensuring reliable performance in demanding industrial environments.
With low power consumption, efficient use of rack space, and internal terminations for simplified wiring, the 125800-02 provides dependable Keyphasor signal transmission while supporting up to eight inputs in paired configurations.
The 125800-02 Bently Nevada Isolated Keyphasor I/O Module (Internal Terminations) may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 125800-02 Isolated Keyphasor I/O Module (Internal Terminations) Manuals,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.
Bently Nevada 125800-02 Isolated Keyphasor I/O Module (Internal Terminations) Specs
General
- Manufacturer GE / Bently Nevada
- Model 125800-02
- Condition New Original ready stock
- Product Family 3500/25,149369-01,135473-01
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.
- Electrical Isolation Protection: This module provides electrical isolation between channels, effectively preventing ground loops and allowing the same sensor signal to be safely distributed to the 3500 monitoring system and external control systems (such as DCS) without interference.
- High-Frequency Pulse Processing: Capable of processing signals up to 1,200,000 cpm (20 kHz), it can accurately capture minute speed changes in high-speed rotating machinery (such as high-pressure compressors).
- Magnetic Sensor Optimization: Circuit optimization for the low-voltage output characteristics of passive magnetic pickups ensures stable trigger pulses across different speed ranges.
- Simplified Installation with Internal Terminations: Utilizing an "internal terminations" design, signal lines are directly crimped to the terminal blocks on the back of the module, reducing intermediate conversion steps, improving signal transmission efficiency, and lowering potential points of failure.
- Multi-system Signal Sharing: This isolation module is a standard configuration when a factory requires a single key-phase signal to simultaneously support both the 3500 mechanical protection system (for vibration analysis) and the PLC/DCS system (for logic control or speed display).
- Complex Electromagnetic Environment Monitoring: In environments with strong electromagnetic interference near large motors or frequency converters, its isolation characteristics ensure the purity of the speed signal, preventing false trips.
- Turbine and Compressor Monitoring: Widely used in large rotating equipment such as steam turbines, gas turbines, and axial compressors, it provides accurate speed references and phase references for shaft trajectory and spectrum analysis.
- Overspeed Protection Assistance: As part of the 3500/25 enhanced key-phase system, it provides reliable speed threshold monitoring for critical machinery.
- SIL 1/2 Certification: This module complies with functional safety standards and supports use in SIL 1 or SIL 2 level Safety Instrumented Systems (SIS), meeting high-reliability industrial safety requirements.
- Explosion-proof for hazardous areas: Certified by North America (CSA/NRTL/C), Europe (ATEX), and internationally (IECEx), allowing operation in hazardous environments such as Class I, Division 2, or Zone 2.
- CE marking compliance: Compliant with Electromagnetic Compatibility (EMC) and Low Voltage Directives, ensuring no interference to other equipment in complex industrial power grids and providing excellent immunity.
- API 670 compliance: As a component of the Bently Nevada 3500 series, its design fully complies with the American Petroleum Institute's API 670 industry standard requirements for mechanical protection systems.