Bently Nevada 3500/61 133811-02 – Temperature Monitor Module | 3500 Series Machinery Protection Platform
Engineering Background
The Bently Nevada 3500 Series is the industry-standard machinery protection platform deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide. Engineered for continuous, mission-critical operation, the 3500 system provides real-time vibration, position, and temperature monitoring with deterministic response times and SIL-rated reliability.
Product Positioning
The 3500/61 Temperature Monitor (P/N 133811-02) is a dedicated thermocouple and RTD input module within the 3500 rack architecture. It provides high-accuracy temperature measurement for bearing, winding, and process temperature monitoring on rotating machinery, enabling early fault detection and preventing catastrophic equipment failure. This module is a direct replacement and upgrade-compatible unit for existing 3500 installations.
Complete Technical Specifications
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model / Part Number | 3500/61 | 133811-02 |
| Module Type | Temperature Monitor |
| Platform | 3500 Series Machinery Protection System |
| Input Types Supported | Thermocouple (TC) & RTD (Resistance Temperature Detector) |
| Number of Channels | 6 channels per module |
| Measurement Range | Per sensor type; configurable via System 1 / Rack Configuration Software |
| Accuracy | ±1°C typical (sensor-dependent) |
| Alert / Danger Setpoints | Fully configurable, latching or non-latching |
| Communication | 3500 Rack Backplane Bus; Modbus RTU / TCP optional via gateway |
| Power Supply | Supplied via 3500 rack backplane (no external PSU required) |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH, non-condensing |
| Approvals / Certifications | CE, UL, CSA; SIL 2 capable (system-level) |
| Form Factor | Single-slot 3500 rack module |
| Weight | 800 g (approx.) |
| Country of Origin | USA |
Proven Application Environments
- Power Generation: Gas turbine bearing temperature monitoring; steam turbine winding protection
- Oil & Gas: Compressor and pump bearing RTD inputs; wellhead and pipeline process temperature
- Petrochemical & Refining: Reactor and heat exchanger temperature surveillance integrated with DCS
- Marine & Offshore: Propulsion system motor winding temperature in harsh environments
- Pulp & Paper / Mining: Large motor and gearbox bearing temperature trending for predictive maintenance
Engineering Advantages
- Seamless 3500 Rack Integration: Hot-swappable module; no rack shutdown required for replacement in most configurations
- Multi-Sensor Flexibility: Single module supports both TC and RTD inputs, reducing spare-parts inventory complexity
- Deterministic Alarming: Hardware-level Alert and Danger relay outputs ensure protection response independent of host software availability
- System 1 Software Compatible: Full configuration, trending, and diagnostics via Bently Nevada System 1 Evolution software
- Proven Field Reliability: Deployed in thousands of installations globally; MTBF exceeds 100,000 hours in typical industrial environments
- Backward Compatibility: Drop-in replacement for earlier 3500/61 variants within the same rack generation
System Architecture & Signal Flow
The 3500/61 module occupies a single slot in the 3500 rack and communicates over the proprietary backplane bus to the Rack Interface Module (RIM) and System Monitor. Sensor signals (TC or RTD) are wired to the I/O module terminal block. The module performs on-board signal conditioning, linearization, and comparison against configured setpoints. Alarm relay outputs are driven directly from the module hardware. Configuration data is stored in non-volatile memory on the module and can be uploaded/downloaded via the 3500 Rack Configuration Software or System 1.
Signal path: Field sensor → I/O terminal block → 3500/61 signal conditioning → Backplane bus → RIM → System 1 / DCS integration
Sourcing & Quality Verification
- All units sourced from authorized distributors, certified MRO suppliers, or decommissioned OEM installations with documented service history
- Each module undergoes visual inspection, firmware version verification, and functional bench test prior to shipment
- Serialization and revision level recorded and provided with shipment documentation
- Counterfeit-prevention: modules verified against Bently Nevada part number and revision databases
- Packaging: ESD-safe anti-static bag, foam-lined carton, with desiccant for long-distance shipping
Procurement Process
- Confirm compatibility: Verify your 3500 rack generation and firmware revision with your site documentation or contact our technical team
- Request a quote: Contact support@konmask.com for volume pricing, lead time, and availability confirmation
- Place order: Purchase directly via this listing or via PO — we accept T/T bank transfer, PayPal, and major credit cards
- Shipping: DHL / FedEx Express worldwide; typical dispatch within 1–3 business days after payment confirmation
- Documentation: Commercial invoice, packing list, and test report provided; CO and other trade documents available on request
Technical FAQ
Q: Is the 3500/61 133811-02 compatible with my existing 3500 rack?
A: The 133811-02 revision is compatible with standard 3500 rack generations. Please confirm your rack firmware and RIM version. Contact us if you need compatibility verification.
Q: Can this module accept both thermocouple and RTD inputs simultaneously?
A: Channel input type is configured per-channel via software. Mixed TC/RTD configurations within the same module are supported depending on firmware version.
Q: What is the warranty on this unit?
A: We offer a 90-day functional warranty on all modules. Extended warranty and exchange programs are available — contact us for details.
Q: Do you provide configuration support?
A: Yes. Our technical team can assist with rack configuration software setup, setpoint guidance, and integration questions at no additional charge for qualified orders.
Q: Can you supply the matching I/O module or termination block?
A: Yes. We stock a wide range of 3500 Series accessories. Please inquire with your full BOM for a consolidated quote.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
