Bently Nevada 87890-01 System Monitor Module

Description

The Bently Nevada 87890-01 is a high-performance System Monitor module designed for centralized machinery protection. It serves as the core controller of the 3300/03 rack system, collecting and processing vibration, proximity, and temperature data from multiple monitors. Moreover, it ensures reliable alarm management and seamless communication with external control systems. Its rugged design allows continuous operation in turbines, compressors, motors, and pumps under harsh industrial environments. The 87890-01 is ideal as a replacement or spare part for legacy Bently Nevada installations, supporting uninterrupted monitoring of critical rotating machinery.

Key Features

• Centralized monitoring for vibration, axial position, and temperature signals.

• Reliable alarm processing compliant with API 670 machinery protection standards.

• Flexible power supply support: 18–36 VDC or 85–264 VAC for various rack configurations.

• Power distribution to rack modules, simplifying system wiring and operation.

• Rugged PCB design ensures stable operation under extreme temperatures and industrial conditions.

• Quick replacement or rebuild options minimize downtime during maintenance.

Technical Specifications

• Model: 87890-01

• Series: 3300/03

• Type: System Monitor Module

• Power Supply: 18–36 VDC / 85–264 VAC

• Power Consumption: < 15 W

• Voltage Monitoring: +VRH, +VRL, +7.5V, +5V, REF, -7.5V

• Power-up Inhibit Duration: Approx. 2 seconds

• Operating Temperature: -20 °C to +65 °C

• Mounting: Rack-mounted PCB card

• Weight: 2.8 kg

• Compliance: Meets API 670 machinery protection standards

Typical Applications

• Continuous online monitoring of turbines, compressors, motors, and pumps.

• Integration into Bently Nevada 3300 Series racks for multi-channel machinery protection.

• Centralized alarm and data management for industrial automation and process control systems.

• Replacement or upgrade component for legacy monitoring systems requiring reliable performance.

FAQ

Q1: Can the 87890-01 module operate on both AC and DC power?
A1: Yes, it supports 18–36 VDC or 85–264 VAC depending on rack configuration.

Q2: Which machinery types is this module suitable for?
A2: It is ideal for turbines, compressors, motors, and pumps in industrial settings.

Q3: What is the typical repair turnaround time?
A3: Standard repair or rebuild takes 3–7 days to minimize downtime.

Q4: Does it comply with API 670 standards?
A4: Yes, the 87890-01 fully meets API 670 requirements for machinery protection systems.

Q5: Can it replace older Bently Nevada 3300 modules?
A5: Yes, it is commonly supplied as a replacement or spare for legacy systems.