Bently Nevada 1900/65A-00-04-01-00-00 – General Purpose Equipment Monitor for Reliable Machinery Protection

The Bently Nevada 1900/65A General Purpose Equipment Monitor is built for everyday rotating assets—pumps, fans, blowers, small compressors—where you still want true machinery protection without the footprint and cost of a large rack system. From my experience, it’s a straightforward two-channel monitor that works well with standard proximity probes or accelerometers, adds a Keyphasor®/tach input for speed and phase, and gives you the essentials: dual-level alarms, relay contacts, and clean 4–20 mA outputs for your PLC/DCS. You might notice that this variant “1900/65A-00-04-01-00-00” is a common configuration for balance-of-plant applications where simplicity and reliability matter most.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than 1 month latest
• Payment Terms: 50% advance; full payment before delivery
• Express Options: FedEx, UPS, DHL

Key Features

• Two dynamic channels – Typically configured for proximity probes or accelerometers to monitor vibration on balance-of-plant equipment.
• Keyphasor®/tach input – Supports speed and phase reference, enabling 1× tracking and more meaningful alarms.
• 4–20 mA outputs – Proportional outputs per channel for easy tie-in to PLCs/DCS; keeps operations teams informed without extra software.
• Dual-level alarms (Alert/Danger) – Standard protection philosophy with configurable latching and time delays in many cases.
• Relay outputs – Use as annunciation or for interlocks/trips on exceedance; simplifies protection design.
• Modbus communications – Typically Modbus RTU over RS‑485 for status, values, and health—handy for remote supervision.
• Compact installation – A space‑saving monitor that fits into crowded MCCs or local junction cabinets.
• Configured for general-purpose assets – Suits pumps, fans, and blowers where continuous protection is desired without a full rack system.

Technical Specifications

Application Fields

This monitor is typically specified for balance‑of‑plant rotating assets across:

• Oil & Gas and Petrochemical – auxiliary pumps, blowers, air coolers
• Power Generation – condensate/extraction pumps, ID/FD fans, cooling tower gearboxes
• Water & Wastewater – high‑service pumps and aeration blowers
• Pulp & Paper / Mining – process fans, slurry pumps, vacuum pumps
• General Industry – HVAC chillers, compressors, and utility machinery

A maintenance lead from a midstream facility told us it “dropped nicely into our existing PLC cabinet, 4–20 mA into the DCS, and the relays tied straight into the trip logic—no drama, and we got legitimate alarm points rather than guesswork.”

Advantages & Value

• Reliable protection – Dual-level alarms and hardwired relays reduce nuisance trips while still guarding the asset.
• Easy integration – 4–20 mA and Modbus RTU mean fast commissioning into almost any PLC/DCS without special software.
• Lower lifecycle cost – A compact monitor usually costs less than a full rack, and ongoing maintenance is minimal.
• Sensor flexibility – Works with standard proximity probes and accelerometers many plants already stock.
• Global support ecosystem – Bently Nevada hardware is widely used, making spare parts and field knowledge easier to source.

Installation & Maintenance

• Panel/Cabinet – Mount in a clean, ventilated enclosure with adequate depth for field wiring. Avoid high‑heat zones and strong EMI sources.
• Power & Grounding – Use a clean 24 VDC source; bond shields at a single point and maintain good cabinet grounding practices.
• Transducer wiring – Route proximity/accelerometer and Keyphasor® cables away from high‑voltage lines; maintain correct polarity and shielding.
• Alarms & Logic – Set Alert/Danger thresholds based on actual baseline data. In many cases, a short time delay reduces false trips on start‑ups.
• Routine checks – Periodically verify 4–20 mA scaling, exercise relays, and review alarm logs. Clean terminals and tighten screws during shutdown windows.
• Firmware/config – Keep configurations backed up; apply manufacturer‑approved firmware updates when available.

Quality & Certifications

• CE compliant
• UL/cUL approvals (model‑dependent)
• RoHS compliant
• Manufactured under ISO 9001 quality systems
• Manufacturer’s warranty applies; we provide a 365‑day warranty on supply