Introduction
The model 330103-00-08-05-02-00 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. It integrates a piezoelectric accelerometer with internal signal conditioning electronics to produce a standardized, loop-powered 4-20 mA output that is directly proportional to vibration severity. The specific suffixes in the model number define its key characteristics, including a standard sensitivity and a 5-meter integral cable. This robust sensor is ideal for direct integration into control systems, PLCs, and DCS for continuous machinery protection and monitoring.
Parameters / Specifications
The following table outlines the key technical parameters for the 330103-00-08-05-02-00 transducer.
| Parameter | Specification |
|---|---|
| Model Number | 330103-00-08-05-02-00 |
| Description | 4-20 mA DC Velocity Seismic Transmitter |
| Physical Dimensions | Approx. 70 mm (2.76 in) in height (excluding cable) x 35 mm (1.38 in) diameter (typical housing). |
| Weight | Approx. 0.3 kg (0.66 lb) |
| Measurement | Casing Vibration (Velocity) |
| Output Signal | 4-20 mA, 2-Wire, Loop Powered |
| Dynamic Range | 0 to 25.4 mm/s (0 to 1.0 in/s) True Peak Velocity |
| Frequency Range | 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) |
| Accelerometer Sensitivity | 100 mV/g (typical for -08 suffix) |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Housing Material | Stainless Steel |
| Electrical Connection | 5-meter (16.4 ft) integral, shielded cable. The -05-02 suffix specifies this cable length and type. |
| Compliance | CE Marked |
Note: The dimensions and weight are typical values for this model series. The specific suffix -00-08-05-02-00 defines the sensitivity, cable length, and connector details. Always consult the official manufacturer's datasheet for the precise configuration for critical applications.
Application Scenarios
This transmitter is widely used for reliable, continuous vibration monitoring across a wide range of industrial applications where a standard 4-20 mA signal is required.
Continuous 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 and integral cable make it perfectly suited for direct connection to a plant's Distributed Control System (DCS) or Programmable Logic Controller (PLC), enabling centralized monitoring of machine health from the control room.
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.
HVAC Systems:
Ideal for monitoring fans and pumps in Heating, Ventilation, and Air Conditioning (HVAC) systems to ensure smooth operation, reduce energy consumption, and provide early warning of mechanical degradation.
Rugged Industrial Environments:
The stainless steel housing and robust construction with an integral cable make it suitable for use in demanding environments, including oil & gas, chemical plants, and power generation, where reliable operation is critical. The integral cable offers improved durability in high-vibration locations.
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