Bently Nevada 3500/61-02-02 Temperature Monitor | Industrial Temperature Monitoring Module
Product Overview
3500/61-02-02 is a high-reliability temperature monitoring module designed for the Bently Nevada 3500 Series machinery protection system.
It supports RTD and thermocouple inputs and provides recorder outputs for continuous monitoring.
The 3500/61 module helps monitor turbines, compressors, and rotating equipment.
Simple setup. Stable signal. Long service life.
Key Identification
- Manufacturer: Bently Nevada
- Model: 3500/61-02-02
- Product Type: Temperature Monitor with Recorder Outputs
- Origin: Made in U.S.A
- Condition: New & Original Factory Packing
- Warranty: 12 Months
Shipping: FedEx | UPS | DHL
Configuration Breakdown
3500/61-02-02
│
├─ 3500/61 → Temperature Monitor Module
│
├─ I/O Option : 02
│ ├─ RTD / Thermocouple Inputs
│ ├─ Non-isolated I/O
│ └─ External Termination
│
└─ Approval Option : 02
├─ ATEX
├─ IECEx
└─ CSA Class I Zone 2
Input Structure
Temperature Inputs
│
├─ Channels
│ └─ 1 to 6 sensors
│
├─ Thermocouples
│ ├─ Type E : -100°C to +1000°C
│ ├─ Type J : -18°C to +760°C
│ ├─ Type K : -18°C to +1370°C
│ └─ Type T : -160°C to +400°C
│
└─ RTDs
├─ 100Ω Platinum (α=0.00385)
├─ 100Ω Platinum (α=0.00392)
├─ 120Ω Nickel
└─ 10Ω Copper
Technical Performance
- Input impedance: 10 MΩ per lead
- Power consumption: 9 W nominal
- RTD excitation current: 925 ±15 µA
- Recorder output: 4–20 mA per channel
- Load resistance: 0–600 Ω
- Voltage compliance: 0–12 Vdc
- Resolution: 0.3662 µA per bit
- Channel update rate: <100 ms typical
- Digital signal filtering
- LED indicators: OK / TX-RX / Bypass
Isolation & Protection
- System isolation: 500 Vdc
- Channel isolation: 250 Vdc
- Fault-tolerant design
- Short-circuit protected outputs
- Stable reading during wiring faults
Accuracy
- Typical accuracy: ±1°C to ±3°C @25°C
- Copper RTD resolution: 1°C / 1°F
- Low long-term drift
- High repeatability measurement
Environmental Limits
- Operating temperature: −30°C to +65°C
- Internal barrier operation: 0°C to +65°C
- Storage temperature: −40°C to +85°C
- Humidity: 95% non-condensing
Mechanical Information
- Monitor size: 241.3 × 24.4 × 241.8 mm
- Monitor weight: 0.91 kg
- I/O size: 241.3 × 24.4 × 99.1 mm
- I/O weight: 0.45 kg
- Rack requirement: 1 front slot + 1 rear slot
Product Advantages
- Supports multiple sensor standards
- High measurement stability
- Continuous recorder outputs
- Hazardous area approvals
- Fast response monitoring
- Easy integration with 3500 racks
- Industrial long-life design
Short Product Description
- Reliable 3500/61-02-02 temperature monitor
- Supports RTD and thermocouple sensors
- Stable 4–20 mA recorder outputs
- Designed for industrial machinery protection
FAQ – Selection & Experience Guide
What sensors give the most stable results?
100Ω platinum RTD (α=0.00385) is recommended for most industrial applications.
When should isolated modules be selected?
Use isolated I/O when electrical noise or grounding issues exist.
Can it upgrade older monitoring cards?
Yes. Many systems replace older modules to improve accuracy and output stability.
RTD or thermocouple — which is better?
RTD gives higher accuracy. Thermocouple supports higher temperatures.
What installation issue is common?
Avoid configuring temperature ranges outside ambient limits. It may cause unstable readings.
Contact Information
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
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