3500/61-01-02 Bently Nevada Temperature Monitor with Recorder Outputs

Product Profile – Bently Nevada 3500/61-01-02 Temperature Monitor

• Brand: Bently Nevada
• Model: 3500/61-01-02
• Series: 3500 Machinery Protection System
• Type: Temperature Monitor with Recorder Outputs
• Made in U.S.A

The 3500/61 Temperature Monitor measures machine temperature in real time.
It supports RTD and thermocouple inputs. It sends 4–20 mA signals to DCS or PLC.

• Up to 6 temperature channels
• ATEX / IECEx / CSA Zone 2 approval
• High stability in harsh environments
• Simple rack installation

Configuration Tree Structure

• 3500/61 – 01 – 02
  • 01
    • RTD / TC Non-Isolated I/O
    • Internal Terminations
  • 02
    • Agency Approval
    • ATEX / IECEx / CSA Class 1 Zone 2

Signal Capability Overview

• Inputs: 1 to 6 RTD or TC sensors
• Input impedance: 10 MΩ per lead
• Power consumption: 9 W nominal
• Recorder output: 4–20 mA per channel
• Output load: 0–600 Ω
• Resolution: 0.3662 µA per bit
• RTD current source: 925 ±15 µA

Thermocouple Ranges

• 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

RTD Ranges

• 100Ω Platinum 0.00385: -200°C to +850°C
• 100Ω Platinum 0.00392: -200°C to +700°C
• 120Ω Nickel: -80°C to +260°C
• 10Ω Copper: -100°C to +260°C
• Recommended: Platinum 0.00385 standard

Accuracy and Resolution

• Typical accuracy: ±3°C at 25°C
• External isolated termination: up to ±1°C
• 10Ω copper RTD resolution: 1°C
• Stable output over temperature range

Isolation and Protection

• System isolation: 500 Vdc
• Channel isolation: 250 Vdc
• Short-circuit safe recorder outputs
• Front LEDs: OK, TX/RX, Bypass

Environmental Limits

• Operating: -30°C to +65°C
• Barrier module: 0°C to +65°C
• Storage: -40°C to +85°C

Physical Data

• Monitor size: 241.3 × 24.4 × 241.8 mm
• Monitor weight: 0.91 kg
• I/O module weight: 0.45 kg
• Rack space: 1 front slot + 1 rear slot

Installation Notes

• Install into 3500 rack front slot
• Match I/O module type before wiring
• Use correct RTD alpha setting
• Verify hazardous area rating

Maintenance Advantages

• Clear LED status indication
• Independent 4–20 mA output per channel
• No effect from recorder short circuit
• Easy sensor replacement

Typical Applications

• Bearing metal temperature
• Stator winding temperature
• Lube oil temperature
• Process pipe monitoring
• Generator heat supervision

Professional FAQ

• Can I mix RTD and thermocouple on one module?
• Yes. Each channel can be configured independently.
• When should I select isolated I/O?
• Choose isolated I/O in high noise or fault-prone sites.
• How do I select the right RTD type?
• Use 100Ω platinum 0.00385 for most industrial systems.
• What is the warranty policy?
• We provide 12 months warranty from shipment date.
• How will the product be shipped?
• We ship by FedEx, UPS, or DHL with secure export packing.

Contact Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825

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