BENTLY 330980-51-00

Description

Detailed parameter table

BENTLY 330980-51-00

Product introduction

The 330980-51-00 from Bently Nevada is a high-performance piezoelectric accelerometer, designed to provide accurate measurement of vibration acceleration and velocity in industrial machinery monitoring systems. As a key component in Bently Nevada’s vibration monitoring portfolio, this accelerometer delivers critical data on machinery health, enabling detection of bearing defects, gear wear, and structural resonance in rotating equipment.

Unlike proximity probes that require ferromagnetic targets, the 330980-51-00 measures vibration directly from machine casings, making it versatile for monitoring a wide range of equipment including motors, pumps, fans, and compressors. When paired with compatible signal conditioners like the 125768-01 and mounting accessories, it forms an essential part of predictive maintenance programs, converting mechanical vibration into electrical signals that reveal early warning signs of machinery degradation.

Core advantages and technical highlights

Broad measurement capability: The 330980-51-00 offers a wide measurement range of ±50g acceleration, capturing both low-amplitude vibrations and high-impact events. Its 1Hz to 10kHz frequency response ensures detection of both low-frequency structural vibrations and high-frequency bearing defects, providing comprehensive machinery health data. The 100mV/g sensitivity delivers precise output for accurate analysis of vibration patterns.

Industrial durability: Encased in a hermetically sealed stainless steel housing, the 330980-51-00 withstands harsh industrial environments, including exposure to moisture, dust, and chemical contaminants. Its rugged construction meets IP68 ingress protection standards, making it suitable for washdown environments and outdoor installations. The accelerometer’s robust design resists shock up to 10,000g, ensuring survival during machinery upset conditions.

Flexible installation: With its compact size and versatile mounting options, the 330980-51-00 can be installed in space-constrained locations on various machinery types. The integral 3m shielded cable minimizes noise interference, while the micro-miniature connector with strain relief protects against cable fatigue. This accelerometer can be mounted on non-ferromagnetic surfaces, expanding monitoring capabilities beyond what proximity probes can achieve.

Hazardous area compatibility: Certified for ATEX Zone 2/22 and IECEx environments, the 330980-51-00 safely operates in locations where flammable gases, vapors, or dust may be present, including refineries, chemical plants, and grain processing facilities.

Typical application scenarios

In manufacturing facilities, the 330980-51-00 is installed on motor and pump bearings throughout production lines. By monitoring casing vibration, it detects early signs of bearing degradation and misalignment in critical production equipment. Its broad frequency response identifies both gear mesh frequencies in reducers and high-frequency bearing defects, allowing maintenance teams to schedule repairs before unplanned downtime occurs.

Within power generation plants, the 330980-51-00 monitors auxiliary equipment such as cooling tower fans, boiler feed pumps, and induced draft fans. Mounted directly on machine housings, it provides vibration data that complements shaft-based measurements from proximity probes, offering a complete picture of machinery health. The accelerometer’s rugged design withstands the varying temperatures and humidity levels common in power plant environments.

In food and beverage processing facilities, the 330980-51-00 monitors mixing equipment, conveyors, and packaging machinery. Its hermetic sealing prevents contamination from washdown procedures, while its stainless steel construction resists corrosion from cleaning agents. The accelerometer’s vibration data helps maintain production efficiency by detecting equipment issues that could affect product quality.

Related model recommendations

330980-52-00: A high-temperature variant of the 330980-51-00 with extended 177°C (350°F) operating range for extreme heat applications.

125768-01: A signal conditioner optimized to process output from the 330980-51-00 accelerometer.

1X35668: A mounting adapter kit for secure installation of the 330980-51-00 on various machinery surfaces.

129478-01: A compatible extension cable for extending the 330980-51-00’s reach in large installations.

330180-91-CN: A calibration tool for verifying the performance of the 330980-51-00 accelerometer.

133292-01: A junction box for centralized connection of multiple 330980-51-00 accelerometers.

3500/42-01-00: A vibration monitor module that integrates data from the 330980-51-00 in comprehensive protection systems.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the 330980-51-00, select a mounting location on the machine casing that provides direct transfer of vibration—typically near bearing housings. Ensure the surface is clean, flat, and free of paint or corrosion. For hazardous area installations, verify the location classification matches the accelerometer’s ATEX Zone 2/22 rating. Plan cable routing to avoid sharp bends, moving parts, and electromagnetic interference sources.

Mounting procedure: Secure the 330980-51-00 using the 10-32 UNF tapped hole, torquing to 2.5 Nm (22 in-lbs) for proper vibration transfer. For permanent installations, use thread-locking compound compatible with stainless steel. Connect the integral cable to a compatible signal conditioner or junction box, ensuring the connector is fully seated and locked. Route the cable with appropriate strain relief to prevent connector damage from machine vibration.

Maintenance suggestions: Inspect the 330980-51-00 quarterly for signs of physical damage, loose mounting, or cable wear. Verify the mounting torque remains at specification, as loose mounting can cause measurement errors. Check cable connections for corrosion or damage, particularly in humid environments. Clean the accelerometer housing with a mild detergent if contaminated, avoiding abrasive materials that could damage the surface. Perform annual calibration using a vibration calibrator to ensure measurement accuracy.

Service and guarantee commitment

The 330980-51-00 is backed by a 2-year warranty covering defects in materials and workmanship under normal operating conditions. Bently Nevada’s global technical support team provides expert assistance for installation, application guidance, and troubleshooting, with 24/7 availability for critical system issues.

We offer specialized training on vibration analysis and accelerometer placement specific to the 330980-51-00, helping users maximize the value of vibration data. Calibration services are available to maintain measurement accuracy and certification compliance. Backed by Bently Nevada’s decades of expertise in vibration monitoring technology, the 330980-51-00 delivers reliable performance you can trust for protecting your industrial machinery assets.