Description
Bently Nevada 136294-01 Isolated 4-20mA I/O Module Technical Profile
1. Product Details
- Core Identity: An isolated +4 to +20 mA I/O module with internal terminations, belonging to the Bently Nevada 3500 Machinery Protection System, commonly paired with 3500/62 Process Variable Monitor as its dedicated signal processing unit.
- Physical & Electrical Specs: Dimensions 241.3 mm × 24.4 mm × 163.1 mm, net weight 2 kg, typical power consumption 7.0W, isolation voltage 500V, transient immunity 10kV, noise immunity 500mV peak.
- Performance Specs: Input and output range both 4 to 20 mA, measurement accuracy ±0.25% of full scale, repeatability ±0.1% of full scale, manufactured in the USA, supplied as brand new original unit with 12-month factory warranty.
2. Main Functions
- Analog Signal Conditioning: Processes raw 4-20mA analog signals from field process sensors, converting them into standardized digital data that the 3500 system can recognize.
- Isolated Signal Output: Delivers isolated 4-20mA standard signals to external DCS, PLC or other plant automation systems, realizing seamless data interconnection.
- Electrical Interference Protection: Blocks electrical interference and common-mode noise from field wiring, ensuring accurate and reliable signal transmission in complex industrial environments.
136294-01
3. Core Features
- Full Channel Electrical Isolation: Each channel is equipped with independent electrical isolation, effectively eliminating ground loop interference and preventing signal crosstalk between different measurement points.
- High Measurement Precision: Delivers ±0.25% full-scale accuracy and ±0.1% full-scale repeatability, meeting the high-precision measurement requirements of critical industrial process parameters.
- Harsh Environment Adaptability: Built-in 10kV transient immunity and 500mV peak noise immunity, ensuring stable long-term operation in high-electromagnetic-interference industrial sites.
4. Application Scenarios
- Critical Machinery Parameter Monitoring: Used to process pressure, flow, temperature and liquid level signals from field sensors on turbines, compressors and other key rotating equipment.
- Industrial System Signal Interconnection: Widely deployed in power generation, petrochemical, oil & gas and metallurgy industries, acting as the signal bridge between field sensors and upper-level plant automation systems.
- Hazardous Area Deployment: The isolated design meets the intrinsic safety wiring requirements of explosive industrial zones, supporting safe signal transmission in Class I Division 2 hazardous areas.
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