Introduction
The part number 330104-03-07-05-02-05 refers to a specific configuration of a 4-20 mA Two-Wire Vibration Transmitter. This device is a core component in industrial condition monitoring systems for rotating machinery.
This transmitter is an integrated, loop-powered device that combines a piezoelectric accelerometer with built-in signal conditioning electronics. Its primary function is to measure the overall vibration velocity of a machine's casing and convert this mechanical motion into a standardized 4-20 mA analog signal. This signal is directly proportional to the vibration level, making it simple to transmit over long distances and integrate directly into control systems like PLCs, DCS, or SCADA for continuous monitoring, alarm generation, and predictive maintenance.
Key Parameters
The following table outlines the typical specifications for this vibration transmitter.
| Parameter Category | Specification |
|---|---|
| Part Number | 330104-03-07-05-02-05 |
| Type | 2-Wire Loop Powered Vibration Transmitter |
| Measured Parameter | Vibration Velocity (RMS) |
| Output Signal | 4-20 mA, two-wire (4 mA = 0 Vibration, 20 mA = Full Scale) |
| Power Supply | 12 - 30 V DC (Standard 24 V DC loop supply) |
| Frequency Range | 10 Hz to 1000 Hz (typical for velocity measurement) |
| Measurement Range | 0 - 25 mm/s RMS (0 - 1.0 in/s RMS) - Example Range |
| Accuracy | ±2% of full scale |
| Housing Material | Stainless Steel (e.g., 316SS) |
| Electrical Connection | Integral cable (5 meters typical, as suggested by the "-05" suffix) |
| Process Connection | Isolated M10 x 1.5 or 1/4-28 UNF mounting stud |
| Sensing Element | Piezoelectric Crystal |
| Operating Temperature | -30 °C to +85 °C (-22 °F to +185 °F) |
| Dimensions (Body) | Approx. 80 mm (3.15 in) height x 35 mm (1.38 in) diameter (excluding cable) |
| Weight | Approx. 320 g (0.71 lbs) |
Application Scenarios
This 4-20 mA vibration transmitter is a versatile and cost-effective solution for continuous monitoring across a wide range of industries. Its key application scenarios include:
Continuous Protection of Critical Assets:
Pumps, Fans, and Motors: Permanently installed on the bearing housings to provide a continuous, real-time vibration signal. This allows control systems to trigger alarms or automatic shutdowns if vibration levels exceed pre-set limits, preventing catastrophic failure.
Plant-Wide PLC/DCS Integration:
Simplified System Integration: The universal 4-20 mA analog signal is wired directly into a PLC or DCS analog input card. This makes it ideal for installations where simple, reliable monitoring is required for a large number of machines without the need for complex vibration analyzers.
Predictive and Condition-Based Maintenance:
Trending Machine Health: The output provides an overall velocity RMS value, which is an excellent parameter for tracking the general mechanical condition of a machine over time. Maintenance teams can use the trending data to schedule repairs before a failure occurs, moving from reactive to proactive maintenance.
General Purpose Machinery Monitoring:
HVAC Systems, Conveyors, Mixers, and Compressors: Used extensively in commercial and industrial applications where the cost and complexity of a full vibration analysis system are not justified, but reliable oversight of machine health is essential for operational continuity
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