Description
Key Technical Specifications
- Model Number: 3500/60
- Manufacturer: Bently Nevada (GE)
- Product Type: Temperature Monitor Module
- Supported System: 3500 Machinery Protection Rack
- Input Channels: 6 Independent Channels
- Input Signal Types: RTD (Pt100, 2/3-wire) and Thermocouple (J, K, T, E, R, S, B, N)
- Cold Junction Compensation: Onboard CJC for accurate TC readings
- Alarm Setpoints: Per-channel Alert and Danger thresholds
- Power Supply: Powered via 3500 Rack Backplane (No external power)
- Operating Temperature: -30°C to +65°C
- Power Consumption: 9 Watts
- Configuration Tool: 3500 Rack Configuration Software
Functional Role & Application Analysis
The Bently Nevada 3500/60 is a high-density temperature monitor designed to acquire RTD and thermocouple signals and drive protection alarms for critical rotating assets. It solves the integration challenge of combining temperature protection with vibration monitoring in a single rack architecture. This module is the go-to card when you need reliable, rack-based temperature protection tightly integrated with your API-670 machinery protection system.
- Turbine & Compressor Bearings: Monitors bearing metal temperatures, casing, and lube oil temps to detect overheating before catastrophic failure.
- Generators & Large Motors: Tracks stator winding hot-spots and bearing housing temperatures for large electric machines.
- Gas Turbines: Measures exhaust gas temperatures and other process-critical thermal points in turboexpanders.
- TMR Redundancy: When installed in groups of three, supports Triple Modular Redundancy voting to eliminate single points of failure.
Our Quality Standard & Testing Process
We understand that the cost of an unreliable part is far greater than its purchase price. A failed temperature monitor means blind spots in your machinery protection scheme. We have established a rigorous, multi-stage testing process to ensure every 3500/60 we ship is 100% functional.
- Visual & Component Inspection: All parts undergo professional cleaning and high-magnification visual inspection to ensure no physical damage, corrosion, or compromised solder joints on the PCB.
- Live System Test: The module is installed in a live 3500 test rack and run for 24 hours to verify continuous operation, backplane communication, and thermal stability.
- Full-Function Diagnostics: We inject precision RTD and thermocouple signals to test all 6 channels, verifying alarm setpoints, relay trip logic, and System 1 data reporting.
- Warranty Backing: Only parts that pass all diagnostic tests are approved for shipment and backed by our full 12-month warranty.
Bently Nevada 3500/60
Compatibility & Migration Paths
To ensure this 3500/60 is 100% compatible with your system, you must check these key compatibility points. Failure to verify this is a common project risk.
- I/O Variant Matching: The 3500/60 has multiple I/O variants (e.g., 133811-01, 136711-01). You must match the exact rear I/O module part number to your existing wiring and sensor types.
- RTD vs TC Configuration: Confirm whether your application requires RTD-only, TC-only, or mixed inputs. The non-isolated version accepts mixed signals; the isolated version provides 250 Vdc channel-to-channel isolation.
- TMR Requirements: If your safety integrity level requires TMR, you must install three 3500/60 modules side-by-side. Single modules operate in simplex or dual-redundant mode only.
- Get Expert Help: Unsure about your I/O variant or TMR configuration? Contact our technical team today for a free compatibility check.
