Bently Nevada 1034549-21 | Seismic Input Monitor

Product Overview

The Bently Nevada 1034549-21 is a dual-channel Seismic Input Monitor belonging to the 1701/25 series of the FieldMonitor family. Unlike proximity sensors that measure relative shaft motion, this seismic monitor is designed to measure absolute vibration from the housing or casing of rotating machinery.

Technical Specifications

• Model Number: 1034549-21

• Series: 1701/25 FieldMonitor

• Channels: 2 Independent Input Channels

• Input Compatibility: Acceleration (Accelerometers) or Velocity Transducers

• Power Requirement: 24V DC

• Operating Temp: -20°C to +70°C (-4°F to +158°F)

• Signal Processing: Integrated conditioning and programmable filtering

• Dimensions: 15.2 cm x 10.2 cm x 2.5 cm

• Weight: 0.3 kg (0.66 lbs)

Key Features and Engineering Advantages

• Dual-Channel Flexibility: Supports two independent transducers, allowing a single module to monitor both the horizontal and vertical vibration planes of a single bearing housing.

• Advanced Conditioning: The module converts complex raw signals into standard engineering units (e.g., mm/s or g), making it easier for host systems to interpret machinery health.

• Predictive Maintenance Engine: By detecting subtle changes in seismic signatures, the module identifies faults long before they result in catastrophic mechanical failure.

• Proactive System Self-Tests: Features embedded diagnostic routines that continuously monitor the integrity of the internal circuitry and the health of the connected field transducers.

• Field-Hardened Reliability: Designed for a wide operating temperature range (up to +70°C), making it suitable for installation in remote instrument enclosures near the process.

• Programmable Thresholds: Supports user-defined alarm setpoints, enabling localized logic to trigger alerts in the DCS or SCADA system as soon as vibration limits are exceeded.