Bently Nevada 3500/60 133819-01 – Four‑channel Temperature Monitor for Critical Machinery Protection

The Bently Nevada 3500/60 (P/N 133819-01) is a 4‑channel temperature monitor designed for RTD and thermocouple inputs in the 3500 rack. It’s typically used on bearings, motor windings, and case temperatures where reliable alarms and integration with plant systems really matter. From my experience, it’s a straightforward drop‑in when you need stable, API‑style temperature protection alongside your vibration monitoring.

• 4 independent channels – Each channel processes temperature measurements with separate Alert and Danger setpoints for clean trip logic.

• Broad sensor compatibility – Supports common thermocouple types (J, K, E, T, R, S, B, N) and 2‑/3‑wire RTDs (Pt100, etc.), which covers most rotating equipment needs.

• Integrated diagnostics – Sensor open/short detection and channel OK status help maintenance catch wiring or probe issues early.

• Rack‑level integration – Works with 3500/22M TDI for data collection and with 3500 relay modules for shutdown voting; no extra interface hardware on the front of the card.

• Hot‑swappable monitor card – Replace the front monitor while the rack is powered; in many cases this shortens planned downtime.

• Stable alarming behavior – Programmable time delays and latching options help avoid nuisance trips during startup or load swings.

This module fits plants that want temperature protection tightly integrated with machinery vibration oversight. You might notice it often paired with prox/seismic cards in:

• Steam and gas turbines – bearing metal temperature, casing temperature, and valve chest points.

• Compressors and gearboxes – journal/thrust bearings and lube oil header temps for API‑style trips.

• Large motors and generators – stator winding RTDs, bearing housings, and coolers.

• Pumps and fans – bearing and seal temperatures to reduce thermal damage during upset conditions.

• Refining, chemicals, and power – places where a single rack covers multiple machines and spares are standardized.

• Drop‑in compatibility – Works within existing 3500 racks and logic, so upgrades or spares are simple and low‑risk.

• Reliable alarming – The Alert/Danger scheme with time delay typically reduces nuisance trips while protecting fast‑rising temps.

• Sensor flexibility – Mixed TC and RTD support makes migrations easier when different OEM packages share a rack.

• Lifecycle support – Long product availability and documentation; seems to be favored in plants standardizing on the 3500 platform.

• Procurement confidence – Clear part number traceability (133819-01) and widely stocked, which in many cases shortens lead time.

A maintenance lead at a combined‑cycle site told us their swap to the 3500/60 cut fault‑finding time in half because sensor issues showed up right away as channel OK faults—simple, but it saves hours during turnarounds.

• Panel/cabinet – Install in a standard 3500 rack within a ventilated cabinet. Keep ambient within the rack’s specified temperature; avoid heat sources near the TDI to minimize drift.

• Wiring practices – Use proper TC extension wire and polarity; for RTDs, route twisted pairs and keep shield grounds consistent at one end to limit noise.

• Sensor terminations – Land sensors on the rear I/O terminal. The module provides cold‑junction compensation for TCs on the I/O; stable cabinet temperature helps accuracy.

• Alarm setup – Set Alert/Danger based on OEM recommendations and historical data; apply time delays on startup where temperatures rise predictably.

• Routine checks – Verify channel OK and trends during outages; spot‑check using a traceable simulator for a couple of points per channel. Firmware and configuration backups should be kept via the TDI.

• Spares – Keeping one spare 3500/60 and a spare I/O module on the shelf typically covers most temperature points in the rack.

• Designed for use in Bently Nevada 3500 systems that are commonly certified to CE and UL/cUL; RoHS compliance is typical for current builds.

• Manufactured under ISO 9001 quality systems.

• Standard manufacturer warranty is typically 1 year for new units; extended coverage may be available depending on region and supply channel.

Note: Specific sensor ranges, accuracy classes, and I/O part variations can differ by build. If you share your sensor list (TC type, RTD wiring, and desired alarm limits), we can validate the exact 3500/60 configuration and the matching rear I/O for 133819‑01 before you place an order.