Introduction to the Bently Nevada 330103-00-16-50-02-00 Accelerometer
The Bently Nevada 330103-00-16-50-02-00 is a 4-20 mA loop-powered accelerometer designed for continuous condition monitoring of industrial machinery. It is part of the Bently Nevada (now Baker Hughes) family of robust and reliable vibration sensors.
This sensor utilizes a piezoelectric sensing element to measure acceleration. A key feature of this model is its integrated electronics, which convert the raw acceleration signal into a standardized 4-20 mA output that is proportional to vibration velocity. This "loop-powered" design means it receives its operating power and transmits the vibration signal over the same two wires, making it extremely simple to connect directly to a Distributed Control System (DCS), Programmable Logic Controller (PLC), or any data acquisition system that can read a 4-20 mA signal. Its primary purpose is to provide a reliable, continuous measurement of overall machine vibration to detect common faults and trigger alarms.
Key Parameters
The following table outlines the key specifications for the 330103-00-16-50-02-00 accelerometer.
| Parameter | Specification |
|---|---|
| Part Number | 330103-00-16-50-02-05 |
| Product Line | Bently Nevada (Baker Hughes) |
| Sensor Type | 4-20 mA Loop-Powered Accelerometer |
| Measured Parameter | Vibration Velocity |
| Output Signal | 4-20 mA, proportional to velocity (e.g., 4 mA = 0 mm/s, 20 mA = Full Scale) |
| Full-Scale Range | Configurable; typical ranges are 25 mm/s or 1.0 in/s peak. |
| Frequency Range | 4.5 Hz to 1000 Hz (270 CPM to 60,000 CPM) |
| Power Supply | 12 to 30 VDC (Loop Powered) |
| Electrical Connection | Integral 2-pin, 3/4"-16 UNF connector |
| Case Material | 316 Stainless Steel |
| Sensing Axis | Mounting Axis |
| Dimensions (Body Diameter x Length) | Approx. 35 mm x 80 mm (1.38 in x 3.15 in) Excluding connector. |
| Weight | Approx. 340 grams (0.75 lbs) |
| Mounting | 10-32 UNF central stud |
| Operating Temperature Range | -50°C to +120°C (-58°F to +248°F) |
Application Scenarios
The 330103-00-16-50-02-00 is a versatile sensor used for general-purpose vibration monitoring on a wide range of industrial equipment where a simple and robust velocity output is required.
Pumps and Motors:
Continuously monitors mid-range to high-speed centrifugal pumps and the motors that drive them. It is ideal for detecting common faults like imbalance, misalignment, and bearing wear, providing an early warning to maintenance teams.
Fans and Blowers:
Widely used on induced draft (ID) fans, forced draft (FD) fans, and industrial blowers. Its velocity output is excellent for monitoring the overall mechanical health of these often large and critical assets.
Compressors:
Applied to reciprocating and centrifugal compressors to monitor casing vibration. The 4-20 mA signal can be easily integrated into the plant's existing control system for alarm and shutdown functions.
General Rotating Machinery:
An excellent choice for mixers, gearboxes, conveyors, and other continuous process machinery. Its loop-powered design simplifies wiring and reduces installation costs compared to systems requiring separate power supplies and signal conditioners.
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