Introduction
The model 330102-24-10-02-05 is a 4-20 mA DC Velocity Seismic Transmitter from the Bently Nevada 3300 series. This device is designed to measure the casing or absolute vibration (expressed as velocity) of rotating machinery and transmit a standardized, loop-powered 4-20 mA signal proportional to the vibration level. The specific suffixes in the model number define its key characteristics: -24 indicates a 100 mV/g internal accelerometer, -10 specifies a 25.4 mm/s (1.0 in/s) peak velocity range, and -02-05 define the electrical connector and mechanical configuration. It is a robust, integrally packaged sensor ideal for direct integration into control and monitoring systems.
Parameters / Specifications
The following table outlines the key technical parameters for the 330102-24-10-02-05 transducer.
| Parameter | Specification |
|---|---|
| Model Number | 330102-24-10-02-05 |
| Description | 4-20 mA DC Velocity Seismic Transmitter |
| Physical Dimensions | Approx. 78.7 mm (3.10 in) in height (excluding connector) x 35.1 mm (1.38 in) diameter. [Based on standard housing for this configuration] |
| Weight | Approx. 0.34 kg (0.75 lb) |
| Measurement | Casing Vibration (Velocity) |
| Output Signal | 4-20 mA, 2-Wire, Loop Powered |
| Velocity Range | 0 to 25.4 mm/s True Peak (0 to 1.0 in/s True Peak) |
| Accelerometer Sensitivity | 100 mV/g (internal sensing element) |
| Frequency Response | 4.5 Hz to 1000 Hz (270 CPM to 60,000 CPM) |
| Power Supply | 12 to 30 VDC |
| Sensitivity | 0.63 mA/mm/s (16 mA/in/s) |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Housing Material | Stainless Steel |
| Electrical Connection | Integral, two-pin, military-style connector (e.g., MS3106A-20-9S or equivalent). The -02-05 suffix typically specifies a connector style and top exit configuration. |
| Compliance | CE Marked |
Note: The dimensions and weight are typical values for this model series. The specific suffix -24-10-02-05 defines the internal accelerometer sensitivity, velocity range, and connector details. For mission-critical applications, always verify against the official manufacturer's drawing or datasheet.
Application Scenarios
This transmitter is used for reliable, continuous vibration monitoring across a wide range of industrial applications where a standard 4-20 mA signal is required for control and protection systems.
General Purpose Machinery Protection:
Permanently mounted on the bearing housings of pumps, fans, blowers, and compressors to provide a continuous 4-20 mA signal for alarm and shutdown functions in a machinery protection system.
Direct PLC/DCS Integration:
Its standard 4-20 mA, two-wire output makes it perfectly suited for direct connection to a plant's Distributed Control System (DCS) or Programmable Logic Controller (PLC), enabling centralized monitoring of hundreds of machines from the control room without the need for additional signal conditioners.
Motor Condition Monitoring:
Widely used on electric motors of all sizes to monitor overall vibration levels, helping to detect common faults like imbalance, misalignment, and mechanical looseness. The 100 mV/g base sensitivity provides a good signal-to-noise ratio for a wide range of fault frequencies.
HVAC and Auxiliary Plant Equipment:
Ideal for monitoring fans, chilled water pumps, and cooling tower fans in Heating, Ventilation, and Air Conditioning (HVAC) systems to ensure efficient operation and schedule maintenance based on actual machine condition.
Rugged Industrial Environments:
The stainless steel housing and robust construction make it suitable for use in demanding environments, including oil & gas, chemical plants, power generation, and water treatment facilities, where reliable operation is critical.
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