

3500/60 and 3500/61 Temperature Modules Bently Nevada
Description
The 3500/60 & 61 modules provide 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 3500/60 and 3500/61 provide identical functionality  except that the 3500/61 provides recorder outputs for each of  its six channels while the 3500/60 does not.  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

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