Bently Nevada 3500/60 133835-01 Temperature I/O Module

Bently Nevada 3500/60 133835-01 Temperature I/O Module

The Bently Nevada 3500/60 133835-01, also cataloged as the 3500/60 Temperature I/O Module, operates as a dedicated hardware component for multi-channel thermal signal acquisition and machinery protection within industrial turbine supervisory instrumentation (TSI) networks.

Hardware Specifications

Thermal Acquisition and Voting Architecture

Engineered to provide six channels of temperature monitoring, the Bently Nevada 3500/60 133835-01 accepts both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs. The internal circuitry conditions these thermal signals and compares them against user-programmable alarm setpoints configured via the 3500 Rack Configuration Software. Depending on the installed I/O module variant, the system supports non-isolated configurations for mixed RTD and TC inputs, or isolated options providing 250 Vdc of channel-to-channel isolation against external electrical interference. Furthermore, when deployed in a Triple Modular Redundant (TMR) architecture, the temperature monitors must be installed adjacent to each other in groups of three, utilizing specialized voting mechanisms to prevent single-point failures and ensure accurate protection.

Frequently Asked Questions

Q: What channel capacity and sensor types are supported by the 3500/60 temperature monitor?

A: The module provides six channels of temperature monitoring and accepts both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs.

Q: How does the system handle voting when used in a Triple Modular Redundant configuration?

A: Temperature monitors must be installed adjacent to each other in groups of three, employing two types of voting to ensure accurate operation and avoid single-point failures.

Field Installation Guidelines

Mounting and Grounding: Install the module exclusively within designated slots of a standard 3500 rack enclosure. Ensure the rear I/O module is firmly secured and torqued to prevent backplane bus misalignment. Connect the earth ground stud directly to the plant grounding grid using low-impedance copper braided wire to mitigate high-frequency noise interference.

Signal Wiring: Route all RTD and thermocouple signal cables separately from high-voltage power conduits and variable frequency drive outputs. Utilize shielded twisted-pair cabling, terminating the shield strictly at the system rack grounding bar to maintain electromagnetic compatibility.