Bently Nevada 3500/60 Temperature Monitors
The Bently Nevada 3500/60 Temperature Monitors provides six channels of temperature monitoring and accept both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs. The modules condition these inputs and compare them against user-programmable alarm setpoints.
The user programs the modules to perform either RTD or TC temperature measurements using the 3500 Rack Configuration Software. Different I/O modules are available in RTD/TC non-isolated or TC isolated versions. The user can configure the RTD/TC non-isolated version to accept either TC or RTD, or a mixture of TC and RTD inputs. The TC isolated version provides 250 Vdc of channel-to-channel isolation to protect against external interference.
When used in a Triple Modular Redundant (TMR) configuration, temperature monitors must be installed adjacent to each other in groups of three. When used in this configuration, the system employs two types of voting to ensure accurate operation and to avoid single-point failures.
Features
The Bently Nevada 3500/60 is a high-performance temperature monitoring module in the 3500 Machinery Monitoring System, designed to offer reliable and accurate temperature monitoring in industrial applications134.
- Six-Channel Monitoring134: It provides six channels of temperature monitoring, allowing for the simultaneous measurement of temperatures at multiple points, which is crucial for comprehensively assessing the thermal status of complex industrial equipment.
- Versatile Inputs134: The module accepts both resistance temperature detector (RTD) and thermocouple (TC) temperature inputs. The RTD/TC non-isolated version can be configured to accept TC or RTD inputs, or a combination of both, while the TC isolated version provides 250 Vdc of channel-to-channel isolation to safeguard against external interference.
- User-Programmable Alarm Setpoints: Users can set alarm setpoints according to specific requirements through the 3500 rack configuration software134. The alarm adjustable range is 0 to 100% of the full-scale measurement range of each monitored value, and the alarm accuracy is within 0.13% of the required value4.
- Front Panel LEDs4: The front panel is equipped with LEDs, including OK, TX/RX, and bypass LEDs, which visually indicate the operating status of the module, such as normal operation, communication status, and whether it is in bypass mode.
- Low Power Consumption7: With a typical power consumption of 9 watts, it is energy-efficient, helping to reduce the overall power consumption of the monitoring system.
- Input Signal Range7: The input signal range is +10.0 V to -24.0 V.
- Output: It can output signals in 4-20 mA or 0-10 V formats7. The output impedance is 550 Ω7.
- Operating Temperature1: The operating temperature range is -22 to 150 °F (-30 to 65 °C).
- Dimensions and Weight7: The dimensions are 9.50 in x 0.96 in x 9.52 in, and the weight is 0.82 kg.
The 3500/60 module uses the 3500 rack configuration software to program and configure different measurement modes134. It conditions the input temperature signals from RTDs or TCs and compares them with the user-programmed alarm setpoints145. In the case of a triple modular redundant (TMR) configuration, temperature monitors must be installed adjacent to each other in groups of three, and the system uses two types of voting to ensure accurate operation and avoid single-point failures134.
The 3500/60 is widely used in various industrial fields3. In the power generation industry, it monitors the temperature of generators, turbines, and other equipment3. In the oil and gas industry, it is used to monitor the temperature of oil wells, pipelines, and compressors3. In the manufacturing industry, it can be used to monitor the temperature of production equipment such as furnaces and heat treatment equipment, helping to ensure the stable operation of the equipment and the quality of the products.
