3500/60-01-01 RTD/TC Temperature Monitor Installation
Product Introduction
The Bently Nevada 3500/60-01-01 monitors temperature from one to six channels. It accepts both RTD and thermocouple inputs. Specifically, the I/O Module Type 01 offers non-isolated internal terminations. This means wiring connects directly to the module without external termination panels. The Agency Approval Option 01 provides CSA/NRTL/C certification for Class 1, Division 2 hazardous locations.
Power consumption reaches 7 watts nominal for the 3500/60 model. This is lower than the 3500/61 which consumes 9 watts. Therefore, the 3500/60-01-01 suits applications needing basic temperature monitoring without recorder outputs. Front panel LEDs show OK, TX/RX, and Bypass status.
Installation & Maintenance
Install the 3500/60-01-01 into a 3500 rack. First, power down the rack completely. Then insert the monitor into a front slot. Slide it along the guide rails until backplane connectors engage. Secure the front screws firmly. Next, install the I/O module into the corresponding rear slot.
For RTD wiring, use 3-wire or 4-wire configurations. 3-wire is common for industrial applications. 4-wire provides better accuracy for critical measurements. For thermocouples, use proper extension grade wire. Match the TC type exactly. Maintain correct polarity. Also, ensure cold junction compensation functions correctly.
After wiring, configure each channel using 3500 Configuration Software. Set transducer type, measurement range, and alarm setpoints. Save the configuration to the rack. Then verify the OK LED illuminates steadily. The TX/RX LED blinks during active communication. For bypass mode during maintenance, the Bypass LED confirms this status.
Regular maintenance includes inspecting termination screws. Tighten any loose connections. Check for corrosion on thermocouple wires. Replace damaged sensors immediately. Also, test recorder outputs periodically using a current loop calibrator. Verify each channel outputs +4 to +20 mA across the measurement range.
Buyer’s Guide FAQ
1. How many channels does the 3500/60-01-01 support?
The 3500/60-01-01 supports up to six channels. Each channel accepts either an RTD or a thermocouple.
2. What is the difference between 3500/60 and 3500/61?
The 3500/60-01-01 consumes 7 watts and has basic temperature monitoring. The 3500/61 consumes 9 watts and includes additional recorder output features.
3. Can I use this monitor with external safety barriers?
Yes. With external barriers, RTD ranges reduce. For 100Ω platinum RTD (alpha 0.00385), range becomes -50°C to +850°C.
4. Is the 3500/60-01-01 approved for hazardous areas?
Yes. Agency Approval Option 01 provides CSA/NRTL/C certification for Class 1, Division 2 locations.
5. What is the RTD current source value?
The RTD current source provides 925 ±15 µA at 25°C. For 3-wire RTDs, two current sources operate. For 4-wire RTDs, a single source works.
