Description
Bently Nevada 3500/50-01-00-01 288062-02
Technical Specifications:
- Channels: 2 independent speed input channels
- Measurement Range: 0 to 50,000 revolutions per minute
- Measurement Accuracy: ±0.1%
- Input Signal Range: +10.0 V to -24.0 V, signals outside this range are internally clamped
- Input Impedance: 20 kilohms standard, 40 kilohms TMR, 7.15 kilohms with internal barriers
- Power Consumption: 5.8 watts typical
- Operating Temperature: -30°C to +65°C
- Storage Temperature: -40°C to +85°C
- Dimensions: 241.3 mm × 24.4 mm × 241.8 mm
- Weight: 0.82 kg
Functional Features:
- Dual-channel design monitors two speed points simultaneously
- Can be configured to provide conditioned Keyphasor signals to the 3500 rack backplane for use by other monitors
- Supports speed monitoring, setpoint alarming, zero speed indication, and rotor acceleration alarming
- Peak hold function stores the highest speed reached by the machine, resettable by the user
- Redundancy design support improves system reliability and availability
- Programmed through 3500 Rack Configuration Software
- Supports multiple communication interfaces for easy connection to monitoring systems
Application Scenarios:
- Power plant steam turbine and generator rotational speed monitoring
- Petrochemical pump and compressor rotational speed monitoring
- Manufacturing rolling mill and lathe rotational speed monitoring
- Steel and metallurgy large rotating machinery rotational speed monitoring
- Paper and textile industry rotating machinery operational status monitoring
Performance Parameters:
- Output Signal: 4-20 mA, 0-10 V
- Operating Voltage: 12-30 V DC
- Frequency Response: Determined by speed range
- Keyphasor Signal: Can provide conditioned Keyphasor signals to rack backplane
- Alarm Function: User-programmable Alert and Danger alarm setpoints
Material Composition:
- Housing: Industrial-grade metal enclosure
- Circuit Board: Multi-layer printed circuit board
- Connectors: Industrial-grade speed signal input terminals
Structural Characteristics:
- Full-height module design occupying one front slot
- Front panel status LEDs
- Supports internal or external termination connections depending on I/O module type
- Modular design supporting hot-swappable replacement
Working Principle: The module receives pulse signals from proximity probes or magnetic pickup sensors. Internal circuits shape, count, and process the signals to calculate precise rotational speed values. The module simultaneously monitors rotor acceleration and direction changes. When rotational speed exceeds user-set alarm values, the module generates alarm signals. The module can also provide Keyphasor signals, offering phase reference for other vibration monitoring modules.
Installation Requirements:
- Install in designated slot of 3500 rack
- Speed sensors must be properly installed to ensure stable reliable signals
- Gap between sensor and gear or key slot must be adjusted according to specifications
- Ensure sensor cable shields are properly grounded
- Maintain appropriate spacing from high-voltage power cables
Use Precautions:
- This module is not designed for use as an overspeed protection system component
- Analog proportional outputs are for data collection, chart recording, or display only
