Typical Applications
The 3500/65-01-01 is commonly used for monitoring:
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Radial bearing metal temperatures
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Thrust bearing temperatures
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Compressor suction and discharge temperatures
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Steam temperatures
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Motor stator temperatures
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Generator winding temperatures
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Process equipment temperatures
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Turbine auxiliary systems
Industries include:
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Oil & Gas
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Power Generation
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Petrochemical
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Mining
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Marine
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Pulp & Paper
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General Industrial Rotating Machinery
Key Features
16 Independent Temperature Channels
Supports simultaneous monitoring of up to 16 temperature inputs, reducing rack space while increasing monitoring capacity.
Flexible Sensor Compatibility
The monitor accepts:
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Isolated-tip thermocouples (Types E, J, K, and T)
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3-wire RTDs
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4-wire RTDs
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Mixed RTD and thermocouple configurations
allowing flexibility for a wide range of industrial applications.
Programmable Alarm Protection
Each channel supports configurable Alert and Danger alarm setpoints with programmable delays. Alarm outputs can activate relay modules within the 3500 System for machinery protection.
API 670 Machinery Protection
The 3500/65 is designed for applications specified by API 670, including radial bearing temperature, thrust bearing temperature, and other critical machine temperature measurements.
Triple Modular Redundant (TMR) Support
For high-availability systems, three adjacent temperature monitors can be configured in Triple Modular Redundant (TMR) mode, providing voting logic to eliminate single-point failures.
Frequently Asked Questions
1. How many temperature channels does the 3500/65 provide?
It supports 16 independent temperature input channels.
2. Which sensors are compatible?
It accepts isolated-tip thermocouples (Types E, J, K, T) and 3-wire or 4-wire RTDs.
3. What does the "-01-01" configuration indicate?
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01 = RTD/Isolated Tip TC I/O Module with Internal Terminations
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01 = CSA/NRTL/C Agency Approval
4. Can RTDs and thermocouples be mixed?
Yes. The module can be configured for all RTDs, all thermocouples, or a combination of both.
5. Is the module suitable for API 670 applications?
Yes. It is commonly used for API 670-compliant machinery protection, particularly bearing and process temperature monitoring.
6. Can it be used in TMR systems?
Yes. In Triple Modular Redundant configurations, three adjacent 3500/65 monitors operate with voting logic to improve system reliability.
7. How is the monitor configured?
Configuration is performed using the 3500 Rack Configuration Software, including sensor type selection, scaling, alarms, and channel assignments.
8. What are the front panel indicators?
The module includes OK and TX/RX LEDs to indicate operational status and communication activity.
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