Bently Nevada 3500/60-01-00 Temperature Monitor Module

Overview: Six-Channel Temperature Protection for the 3500 Rack

The Bently Nevada 3500/60-01-00 Temperature Monitor Module provides six channels of temperature monitoring within the Bently Nevada 3500 Series machinery protection rack, accepting both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs on a single module. The 3500/60 conditions these inputs and compares them against user-programmable alarm setpoints, giving plant operators continuous visibility into bearing, winding, and process temperatures critical to rotating equipment health.

As an authorized supplier of Bently Nevada machinery protection instrumentation, Seven Star LLC sources and supplies the 3500/60 temperature monitor module to refineries, gas processing plants, and power generation facilities across Oman and the wider GCC. Because temperature monitor modules directly feed machinery protection trip logic, Seven Star LLC helps maintenance teams source the correct module configuration to maintain full protection coverage.

Measurement Principle

The 3500/60 module accepts up to six mixed RTD or TC transducer signals, applying a precise 925 ±15 µA (at 25°C) current source per transducer for RTD measurement (single supply for 4-wire RTDs, two supplies for 3-wire configurations) while directly reading thermocouple millivolt signals for TC inputs. Users program each channel to perform either RTD or TC measurement using the 3500 Rack Configuration Software, and the module continuously compares each measured temperature against configurable Alert (1 to 60 seconds delay) and Danger (1 to 60 seconds in 0.5-second steps) alarm thresholds.

Supported RTD types include 100Ω platinum (both α=0.00385 spanning -200°C to +850°C, and α=0.00392 spanning -200°C to +700°C), 120Ω nickel (-80°C to +260°C), and 10Ω copper (-100°C to +260°C), while thermocouple types E, J, K, and T are supported across their respective standard temperature ranges up to +1370°C for Type K. Each channel provides a +4 to +20 mA recorder output proportional to full scale, short-circuit protected, for integration with external recording or DCS systems.

Engineering Design of the 3500/60 Module

The 3500/60 monitor requires one full-height front slot in the 3500 rack and a corresponding rear I/O module slot, with RTD/TC non-isolated or TC isolated I/O module options available depending on application requirements – the isolated version providing 250 Vdc of channel-to-channel isolation to protect against external electrical interference. Input impedance is greater than 10 MΩ per lead, and the module draws a nominal 7 to 9 watts of power.

For Triple Modular Redundant (TMR) configurations, 3500/60 modules must be installed adjacent to each other in groups of three, with the system employing two types of voting logic to ensure accurate operation and avoid single-point failures in critical machinery protection applications. The module carries CSA/NRTL/C (Class 1, Division 2) hazardous location approval, and operates across -30°C to +65°C with internal termination I/O, supporting installation in a wide range of plant environments.

Key Features

The Bently Nevada 3500/60 Temperature Monitor Module delivers comprehensive six-channel temperature protection. Key characteristics include:

• Six channels of mixed RTD and thermocouple temperature monitoring on a single module.
• Supports 100Ω platinum, 120Ω nickel, and 10Ω copper RTDs, plus Type E, J, K, and T thermocouples.
• User-programmable Alert and Danger alarm setpoints via 3500 Rack Configuration Software.
• 4-20 mA recorder output per channel, short-circuit protected.
• RTD/TC non-isolated or 250 Vdc isolated TC I/O module options.
• Supports Triple Modular Redundant (TMR) configuration with dual voting logic.
• CSA/NRTL/C (Class 1, Division 2) hazardous location approval.

Industrial Applications

The 3500/60 module is deployed across turbines, compressors, generators, and pumps in refineries, gas processing plants, and power generation facilities, monitoring bearing temperatures, winding temperatures, and process temperatures that feed directly into machinery protection trip and alarm logic. Its TMR-capable design makes it suitable for the highest-criticality rotating equipment protection applications where single-point failure cannot be tolerated.

Seven Star LLC supports refinery instrumentation teams, gas processing operators, and power plant maintenance departments across Oman, Muscat, Sohar, and the broader GCC region with sourcing of Bently Nevada 3500 Series temperature monitor modules, helping plants maintain comprehensive machinery protection coverage.

Technical Specifications

The table below summarizes the core specifications of the Bently Nevada 3500/60-01-00 Temperature Monitor Module as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supplies the Bently Nevada 3500/60-01-00 Temperature Monitor Module with full manufacturer documentation and regional technical support. Contact our instrumentation division for a formal B2B quotation, to confirm the correct I/O module configuration for your existing 3500 rack, or to obtain the complete technical datasheet. Seven Star LLC ensures every unit shipped across Oman and the GCC is genuine Bently Nevada hardware, correctly specified, and backed by local support.