Bently Nevada 1900/27 Series Vibration Monitor – Compact, Reliable Protection for General-Purpose Rotating Machinery

• Warranty: 365 days

• Delivery time: 1 week for in-stock; no more than one month at the latest

• Payment terms: 50% advance payment; full payment before delivery

• Express options: FedEx, UPS, DHL

• Two-channel vibration monitoring – Typically supports casing vibration or shaft vibration depending on the sensor type used.

• Alert/Danger alarm setpoints – Independent thresholds with relay outputs for straightforward trip logic on critical assets.

• 4–20 mA process outputs – Per-channel analog signals for DCS/PLC trending; makes it easy to baseline and track changes over time.

• Buffered transducer outputs – Convenient for portable data collectors when you want deeper diagnostics without disturbing the wiring.

• Compact DIN-rail design – Saves cabinet space and simplifies brownfield upgrades in crowded panels.

• 24 VDC power – Common plant supply; in many cases you can reuse existing rails and power supplies.

• Broad sensor compatibility – Typically works with Bently Nevada proximity probes (via Proximitor), velocity sensors, or IEPE accelerometers.

• Rugged, industrial build – Designed for continuous operation in plant environments with stable performance and straightforward maintenance.

The 1900/27 seems to be most at home on small to mid-size rotating equipment where you need dependable protection and simple integration:

• Water and wastewater pumps (end-suction, vertical turbine, multistage)

• HVAC and process fans/blowers in facilities and plants

• Light-duty compressors and package skids

• Gearboxes on conveyors and agitators

• Cooling tower drives and circulating pumps

A maintenance supervisor at a chemical site told me they used it to replace standalone vibration switches—fewer nuisance trips, plus trending via 4–20 mA gave them early warning on a failing bearing. That’s typically where this unit shines.

• Reliable protection – Alert/Danger logic with robust relays reduces risk of unplanned downtime.

• Simple integration – 4–20 mA outputs drop straight into your DCS/PLC without extra converters.

• Sensor compatibility – Works with widely used Bently Nevada transducers, so spares and replacements are straightforward.

• Lower installed cost – DIN-rail format and 24 VDC power typically cut panel real estate and wiring time.

• Maintainability – Buffered outputs make on-the-spot diagnostics easy with a portable analyzer.

• Cabinet and mounting – Mount on 35 mm DIN rail inside a ventilated control cabinet; allow clearance for wiring and heat dissipation.

• Power and grounding – Use a clean, regulated 24 VDC supply; bond the ground per plant standards to minimize noise pickup.

• Sensor wiring – Keep transducer cables shielded and routed away from VFD outputs; follow Bently Nevada practices for proximity/IEPE wiring.

• Alarm setup – Set Alert/Danger levels based on baseline vibration data; review after first week of operation to fine-tune.

• Routine checks – Quarterly functional test of relays and OK status; verify 4–20 mA scaling in the DCS.

• Cleaning & updates – Keep terminals clean and tight; apply firmware updates if applicable to your hardware revision.

• Bently Nevada 3300 XL proximity probe systems (shaft vibration/position via Proximitor)

• Bently Nevada 330500 Velomitor velocity sensors (casing velocity on pumps/fans)

• Bently Nevada industrial IEPE accelerometers (casing acceleration on motors/gearboxes)

• Buffered output leads and terminal accessories for field diagnostics

One thing I appreciate is how the 1900/27 typically lets you reuse existing plant-standard sensors, so you’re not locked into a costly changeover.

• CE marked for EMC and safety (manufacturer documentation)

• UL/cUL recognition for industrial control equipment in many configurations

• RoHS compliance for most standard builds

• Manufacturer’s warranty: 12 months (365 days)

If you’re standardizing across multiple skids or replacing legacy vibration switches, the Bently Nevada 1900/27 Series offers a clean, trustworthy path—compact footprint, clear alarms, and the data your operators can actually use.