Bently Nevada 3500/61-01-02 Temperature Monitor
Product Introduction
The 3500/61-01-02 from Bently Nevada is a reliable temperature monitoring solution for industrial machinery protection. This module accepts up to six RTD or thermocouple (TC) inputs. It provides recorder outputs for each channel. Additionally, it supports non-isolated I/O with internal terminations. The unit carries ATEX, IECEx, and CSA approvals for Zone 2 areas. Made in the U.S.A., this monitor ensures accurate temperature measurement in demanding environments.
Technical Specifications
Power and Output Details
Power consumption for the 3500/61-01-02 is 9 watts nominal. Front panel LEDs include OK, TX/RX, and Bypass indicators. The recorder output provides +4 to +20 mA proportional to full scale. Each channel has its own recorder value. Short circuits on recorder outputs do not affect monitor operation. Voltage compliance ranges from 0 to +12 Vdc across a load of 0 to 600 Ω. Resolution is 0.3662 µA per bit with ±0.15% error at room temperature.
Accuracy
For internal termination non-isolated modules like this 3500/61-01-02, accuracy is ±3°C at 25°C (±5.4°F at 77°F). This applies to bulkhead and standard racks. For 10Ω copper RTDs, resolution is 1°C or 1°F with ±3°C accuracy.
Mechanical and Environmental Limits
Operating Conditions
Operating temperature ranges from -30°C to +65°C (-22°F to +150°F) with internal or external termination I/O modules. Storage temperature is -40°C to +85°C (-40°F to +185°F).
Physical Dimensions
The monitor module measures 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in). It weighs 0.91 kg (2.0 lb). The I/O module for the 3500/61-01-02 measures 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) and weighs 0.45 kg (1.0 lb).
Rack Space
The monitor requires one full-height front slot. The I/O module needs one full-height rear slot.
Installation Guidelines
First, ensure the 3500 rack is powered off before installation. Next, insert the 3500/61-01-02 monitor into a full-height front slot. Then, install the corresponding I/O module into the rear slot. Use internal terminations as specified by the -01 I/O option. Meanwhile, verify that all wiring follows the RTD or TC configuration. Finally, power on the system and check the OK LED for proper operation.
Packaging List
3500/61-01-02 Temperature Monitor Module (1 unit)
I/O Module with Internal Terminations (1 unit)
Installation documentation (1 copy)
Shipping method: FedEx, UPS, DHL
Frequently Asked Questions (FAQ)
1. What types of sensors work with the Bently Nevada 3500/61-01-02?
It accepts up to six RTD or thermocouple (TC) sensors. Supported TCs include Type E, J, K, and T. Supported RTDs include platinum, nickel, and copper types.
2. Is the 3500/61-01-02 suitable for hazardous locations?
Yes, it carries ATEX, IECEx, and CSA approvals for Class 1, Zone 2 areas. Therefore, it works safely in many industrial environments.
3. What happens if a recorder output short circuits?
Monitor operation remains unaffected. The 3500/61-01-02 handles short circuits on recorder outputs without any performance loss.
4. How much rack space does this temperature monitor require?
The monitor uses one full-height front slot. The I/O module uses one full-height rear slot. Consequently, plan your rack configuration accordingly.
5. Can I use this module with external barriers?
Yes, but temperature ranges may change. For example, with external barriers, platinum RTD (0.00385) ranges from -50°C to +850°C instead of -200°C to +850°C.
