Introduction
The EPRO 330195-02-12-05 is a specific model of a PT100 RTD (Resistance Temperature Detector) temperature sensor designed for continuous monitoring and protection of critical rotating machinery. It is a key component within the EPRO MMS 6000 and other machinery management systems.
This sensor measures the temperature of bearing housings, lubricating oil, cooling water, and other critical points on machinery like turbines, compressors, and large pumps. It operates on the principle that the electrical resistance of platinum changes predictably with temperature. A PT100 sensor has a resistance of 100 ohms at 0°C. This reliable and accurate measurement is used by monitoring systems to trigger alarms or shutdowns if temperatures exceed safe limits, thereby preventing equipment damage from overheating, lack of lubrication, or cooling system failure.
Parameters / Specifications
The key technical specifications for the EPRO 330195-02-12-05 are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 330195-02-12-05 |
| Product Line / Type | EPRO (Baker Hughes) Temperature Sensor / PT100 RTD |
| Sensor Type | PT100 (Platinum Resistance Thermometer) |
| Resistance at 0°C (32°F) | 100 Ω |
| Temperature Range | -50°C to +150°C (-58°F to +302°F) [Typical for bearing applications] |
| Tolerance / Class | Class A (±0.15°C at 0°C) or Class B (±0.3°C at 0°C) as per IEC 60751 |
| Element Type | Thin-film or wire-wound (designed for industrial vibration) |
| Connection / Cable | The -02 suffix typically indicates an integrated, unconnectorized cable. |
| Cable Length | The -12 suffix typically specifies a cable length of 2 meters. |
| Mounting Thread | The -05 suffix often specifies a G1/2" mounting thread. |
| Probe Diameter | Approx. 6 mm (standard for a G1/2" threaded housing) |
| Probe Length | Approx. 150 mm (length can vary; this is a common standard length) |
| Housing Material | Stainless Steel (e.g., 316SS) |
| Weight (Approx.) | 0.22 lbs (0.1 kg) |
Note: The exact interpretation of suffixes can vary. For critical applications, consulting the official EPRO datasheet or configuration guide for this exact part number is highly recommended.
Application Scenarios
This PT100 RTD sensor is deployed wherever reliable and accurate temperature monitoring is essential for the health and safety of industrial machinery.
Typical application scenarios include:
Bearing Temperature Monitoring:
Directly mounted in bearing housings of turbines, compressors, generators, and large motors to detect overheating caused by lubrication failure, misalignment, or excessive load. This is a primary protection function to prevent bearing wipeout.
Lube Oil Temperature Measurement:
Installed in oil lines or reservoirs to monitor the temperature of the lubricating oil. High oil temperature can indicate cooler failure or problems within the machine, while low temperature can prevent proper oil circulation during start-up.
Cooling Water Temperature:
Used to monitor the temperature of water used for cooling various machine components, such as engine jackets or heat exchangers, ensuring the cooling system is functioning correctly.
Process Temperature Monitoring:
Injected into process lines (e.g., gas, liquid) to ensure the machinery is operating within its designed thermodynamic envelope.
Industries of Use:
Power Generation (Gas, Steam, and Hydro Turbines)
Oil & Gas (Pipeline Compressors, Pumps)
Petrochemical & Refining
Marine Propulsion
Heavy Industrial Manufacturing
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