1900/65A
general purpose
equipment
monitor
Traditional Bently Nevada™ monitoring systems like the 3500
Series are widely recognized for protecting large, complex
rotating machinery. However, it is generally difficult to justify
this type of continuous monitoring for less critical, essential
or general purpose equipment. As a result, these machines
typically operate without adequate protection.
The Bently Nevada 1900/65 General Purpose Equipment
Monitor is a flexible, cost-effective system specificallydesigned to continuously monitor and protect essentialand balance-of-plant equipment assets in a wide range
of industries including: Oil & Gas, Power Generation, WaterTreatment, Pulp & Paper, Manufacturing, Mining, Cement,and others. The 1900/65 Monitor is suitable for monitoringand protecting cooling tower fans, pumps, blowers,motors, pulverizers, air compressors, small reciprocating
compressors, small electric motors, small hydro turbines,
centrifuges, and other equipment assets.

Benefits• Lower-cost, continuous online protection than traditional
rack-based systems• Digital connectivity via optional Modbus® gateway servesrich static variable set, alarm statuses, and event list data
to Distributed Control Systems (DCSs), Programmable
Logic Controllers (PLCs), Supervisory Control and Data
Acquisition (SCADA) Systems, and System 1* Optimization
and Diagnostic Software• Reliable system offers improved capability overtransmitters for equipment protection• Uses proven and reliable circuit designs as found in 3500
and 3300 monitoring systems• 8-channel monitor offers greater number and variety ofinputs than other 1900 Series monitors• Easy installation and configuration through small size,
flexible mounting options, and configuration software• Monitor functions independently or with an optional display
for local indication of all channels and variables• Display can be mounted directly to the monitor or up to
250 feet away and connected to the monitor via a single
cable• Particularly suited for use on standalone, skid-mounted,
and packaged machinery• Packaged and designed for cost-effective OEMapplications• Simplified, less costly on-line installation via 232 or 485
connectors.
• Flexible Dynamic channels can be configured for vibration,
position or speed

Capabilities/specifications• Self-contained, stand-alone monitor• Continuous monitoring and protection, suitable for autoshutdown applications• Optional Modbus gateway communicates via Modbus/TCP
over Ethernet to any Modbus client, including DCSs, PLCs,SCADA systems, and System 1• 4 channels of vibration inputs (2- and 3-wire velocity andacceleration sensors and Bently Nevada proximity sensors)• Up to 4 variables per channel with independent integrationand filter control• Up to 8 pole filters on some variables• 24 bit A/D converters with 25 kHz bandwidth• 4 Channels of temperature inputs (type E, J, K, and T
thermocouples as well as RTD type sensors)• 2 levels of alarms — ALERT and DANGER• 6 configurable relays with voting logic• Buffered vibration/speed transducer outputs—4 onmonitor, 1 on display• Stand alone configuration software• Accepts 18 to 36 Vdc power; an external power supply isavailable for 110/220 VAC• Mountable via DIN-rail clip or the bulkhead mounting plate• Small package – Dimensions (inches):– Monitor: 7.75 x 5.88 x 2.93
– Display: 7.75 x 5.03 x 1.29
– Monitor with attached Display: 7.75 x 5.88 x 3.85
• Optional fiberglass housing, or steel door (for panelmount applications), to meet weatherproof installation
requirements and IP65
• Approvals include CSA (Class 1 Div 2 — although themonitor cannot be installed in Div 1 locations, it will support
transducers installed in Div 1 locations via the use ofisolators and barriers), ATEX (Zone 2), CE, and GOST (IEC Ex)• Trip Multiply function to prevent unwanted machine trips
during periods of expected high vibration like machine
start-ups• 4 configurable 4-20 mA recorder outputs

Copyright 2020 Baker Hughes Company. All rights reserved.
BHCS13884E		

(09/2020)

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