Product Description

Intrinsic Safety and Precision Sensor Interfacing

The 3500/42 (Model: 3500/42) Proximitor Seismic Barrier I/O Module is a critical component for hazardous area monitoring within the Bently Nevada 3500 Series Machinery Protection System. The 135489-01 (Part Number: 135489-01) is specifically engineered with internal zener barriers to provide intrinsically safe connections to transducers located in potentially explosive atmospheres. By limiting the electrical energy delivered to the field sensors, this module ensures that even in the event of a circuit failure, there is insufficient energy to ignite hazardous gases, making it the industry standard for refineries, chemical plants, and upstream oil and gas facilities.

Detailed Technical Specifications

The 3500/42 135489-01 provides four channels of highly isolated input/output signals, optimized for vibration and position monitoring.

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Series: 3500/42 Proximitor Seismic Monitor

• Part Number: 135489-01

• Module Type: Internal Barrier I/O

• Number of Channels: 4 Independent Isolated Channels

• Transducer Compatibility: Proximitor Sensors, Accelerometers, Velomitors

• Input Voltage Range: -24 VDC (Nominal for Proximitor supplies)

• Barrier Type: Internal Zener Barriers (Intrinsically Safe)

• Signal Frequency Response: 0.5 Hz to 30 kHz (Application dependent)

• Isolation Voltage: 500 Vrms (Channel-to-Channel and Channel-to-Backplane)

• Operating Temperature: -40°C to +80°C (-40°F to +176°F)

• Protection Features: Integrated Short-Circuit, Overvoltage, and Reverse Polarity Protection

• Mounting: Rear-access rack mounting in standard 3500/05 chassis

• Regulatory Compliance: Designed for CSA/ATEX hazardous area certifications