Bently Nevada 3500/61-01-02 Temperature Monitor | RTD TC Module

Bently Nevada 3500/61-01-02 Temperature Monitor

Manufacturer: Bently Nevada
Model: 3500/61-01-02
Product Type: Temperature Monitor with Recorder Outputs
Origin: Made in U.S.A
Warranty: 12 Months

Product Short Description

• Original 3500/61-01-02 module
• Supports RTD and Thermocouple inputs
• ATEX / IECEx / CSA Zone 2 approved
• 4–20 mA recorder outputs
• Fast shipping via DHL, UPS, FedEx

Configuration Breakdown

3500/61-01-02

Base Model
3500/61
Temperature Monitor
Recorder Output Type

I/O Module Type – 01
RTD / TC Non-Isolated
Internal Terminations

Agency Approval – 02
ATEX
IECEx
CSA Class I Zone 2

Input Capabilities

• 1 to 6 RTD or TC channels
• Input impedance: 10 MΩ per lead
• High noise rejection design
• Auto cold junction compensation

Thermocouple Types

• 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 Types

• 100Ω Platinum (α=0.00385): -200°C to +850°C
• 100Ω Platinum (α=0.00392): -200°C to +700°C
• 120Ω Nickel: -80°C to +260°C
• 10Ω Copper: -100°C to +260°C

Recommended: 100Ω Platinum RTD (0.00385).

Output & Performance

• Recorder Output: 4–20 mA per channel
• Load resistance: 0–600 Ω
• Voltage compliance: 0–12 Vdc
• Resolution: 0.3662 µA per bit
• RTD current source: 925 ±15 µA

LED Indicators

• OK LED
• TX/RX LED
• Bypass LED

Accuracy

• Standard accuracy: ±3°C at 25°C
• Best case: ±1°C at 25°C (external isolated)
• Copper RTD resolution: 1°C

Environmental Limits

• Operating: -30°C to +65°C
• Storage: -40°C to +85°C
• Humidity: 95% non-condensing

Physical Data

• Monitor Size: 241.3 × 24.4 × 241.8 mm
• Monitor Weight: 0.91 kg
• I/O Slot: 1 front + 1 rear slot

Key Advantages

• Multi-channel monitoring
• High input stability
• Certified for hazardous areas
• Independent recorder outputs
• Industrial grade reliability
• Easy rack integration

Warranty & Shipping

• 12 Months Warranty
• 100% functional test before shipment
• Delivery by DHL, UPS, FedEx
• Strong export packaging

Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

Professional FAQ

1. How many sensors can one module support?

Up to 6 channels. Each channel works independently.

2. Should I choose RTD or TC?

RTD gives higher accuracy. TC works better at very high temperature.

3. Is isolation required?

Isolation is needed in high noise or fault risk areas.

4. What is best RTD type?

100Ω platinum with 0.00385 alpha is most stable.

5. What is common mistake in field?

Wrong wiring of 3-wire RTD. Always check lead resistance balance.

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