Introduction
The part number 330180-50-00 refers to a Signal Conditioner or Power Supply for Industrial Accelerometers, often known as a Proximitor® Seismic Converter. This device is a critical interface module in machinery condition monitoring systems.
Unlike a simple sensor, this unit is a signal conditioning device. It provides the necessary constant current excitation (typically 4 mA) required to power IEPE (Integrated Electronics Piezo-Electric) accelerometers. It then conditions the raw signal from the accelerometer, providing multiple, scalable analog outputs such as 4-20 mA for vibration level and ±5 V or ±10 V for dynamic vibration analysis. This allows for seamless integration of casing vibration data into control systems (PLC/DCS) and diagnostic tools.
Key Parameters
The following table outlines the typical specifications for this signal conditioner.
| Parameter Category | Specification |
|---|---|
| Part Number | 330180-50-00 |
| Type | Signal Conditioner / Power Supply for IEPE Sensors |
| Compatible Input | IEPE (ICP®) Accelerometers & Velocity Sensors |
| Input Power (to Sensor) | Constant Current: 2 to 20 mA (typically 4 mA) |
| Output Signals | • 4-20 mA (for overall vibration level) • ±5 V or ±10 V DC (for dynamic vibration signal) |
| Power Supply | 18 - 30 V DC |
| Frequency Response | 0.5 Hz to 10,000 Hz (depending on configuration) |
| Dynamic Range | Up to 400 mV/mA (for IEPE sensors) |
| Housing Material | Aluminum Alloy (for lightweight and EMI shielding) |
| Mounting | DIN Rail (35 mm standard) |
| Electrical Connection | Removable Screw Terminal Blocks |
| Operating Temperature | -30 °C to +70 °C (-22 °F to +158 °F) |
| Dimensions (H x W x D) | Approx. 120 mm x 22 mm x 110 mm (4.72 in x 0.87 in x 4.33 in) - Example DIN Rail Module |
| Weight | Approx. 0.3 kg (0.66 lbs) |
Application Scenarios
This signal conditioner is a versatile interface module used in various applications where reliable signal acquisition from IEPE sensors is required.
Integration of Vibration Data into Control Systems:
PLC/DCS/SCADA Interface: Serves as a crucial link between "raw" IEPE vibration sensors and the plant's control system. It converts the sensor's signal into robust, industry-standard formats (4-20 mA or ±10 V) that can be transmitted over long distances and easily interpreted for alarm and shutdown functions.
Permanent Online Casing Monitoring Systems:
Pumps, Fans, and Gearboxes: Used to power and condition signals from accelerometers permanently mounted on machine bearing housings. The 4-20 mA output provides a continuous overall vibration level to the control system for predictive maintenance.
Portable and Permanent Data Acquisition Systems:
Diagnostic Systems: Provides conditioned power and signal output for both portable data collectors (using the voltage output) and permanent online monitoring systems, enabling both periodic and continuous vibration analysis.
General Purpose Vibration Measurement and Testing:
Structural Monitoring and Test Benches: Used in applications beyond pure machinery protection, such as monitoring the vibration of structures, platforms, or in research and development test stands where reliable signal conditioning from IEPE sensors is required.
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