Bently Nevada 1720025 Monitor Module

Proactive Asset Diagnostics and Autonomous Machine Protection

The 1720025 serves as a rugged, compact field-programmable machinery monitor engineered to deliver continuous machinery protection for essential auxiliary plant assets. Operating independent of a centralized control rack, this self-contained hardware module processes dynamic transducer inputs locally to calculate real-time mechanical health indicators. 

Detailed Technical Specifications

• Manufacturer: Bently Nevada, a Baker Hughes business

• Product Subfamily: 1900 Series Compact Monitors

• Hardware Designation: 1720025 Standalone Protection Subsystem

• Signal Sampling Architecture: High-speed simultaneous analog-to-digital conversion

• Dynamic Input Capacity: Dual independent software-assignable vibration channels

• Auxiliary Process Input: One dedicated input path for temperature or static pressure monitoring

• Transducer Interfacing Compatibility: 3300 XL Proximitor systems, moving-coil velocity sensors, and standard piezo-accelerometers

• Temperature Sensor Support: Standard 100-ohm platinum Resistance Temperature Detectors (RTD)

• Frequency Response Range: 1.0 Hz to 10,000 Hz broadband measurement spectrum

• Measurement Calculation Accuracy: Within 0.5 percent of the configured engineering full-scale value

• Proportional Current Output: Integrated 4 to 20 mA analog output loops for direct DCS tracking

• Control Relay Contacts: Three fully programmable dry-contact relays rated at 2 Amperes and 240 VAc

• Operational Input Voltage: 20 to 30 Vdc regulated power supply input

• Nominal Power Consumption: 6.0 Watts maximum under full transducer current load

• Thermal Operating Envelope: -20 to +65 degrees Celsius internal component rating

• Storage Environment Limits: -40 to +85 degrees Celsius dry ambient warehouse storage

• Relative Humidity Tolerance: Up to 95 percent maximum, non-condensing atmosphere

• Hazardous Area Approvals: Class I, Division 2 North American certifications and ATEX Zone 2 explosive protection

Hardware Option Suffix Logic

• Terminal Connection Design: Specifies the physical structure of the wiring interface. Factory options determine whether the input paths utilize standard screw-terminal blocks for permanent industrial wiring installations, or quick-disconnect spring-cage connectors intended for high-vibration control environments.

• Internal Software Parameter: Establishes the pre-loaded firmware framework of the internal processing chip. Suffix variations determine if the monitor calculates overall velocity metrics for standard rotating machinery, or if the internal math filters are pre-set for specialized low-frequency displacement tracking on large fan assemblies.

• Physical Enclosure Protection: Dictates the ingress protection profile of the physical assembly. Configuration options range from bare-board chassis plates for direct integration into existing MCC cabinets, to specialized fiberglass weatherproof housings designed for extreme field deployment directly adjacent to the monitored equipment.