Description

The Bently Nevada 330780-12-00 3300 XL Proximitor Sensor is a non-contact eddy current displacement transducer designed for precise vibration and position monitoring of rotating machinery. This specific configuration, indicated by option -12, provides a full-scale range of 0.040 inches (1.0 mm) and is optimized for use with Bently Nevada 3300 XL 11 mm proximity probes. It is suitable for applications requiring high accuracy and reliability in challenging industrial environments. This Proximitor sensor is a key component of the 3300 XL Proximity Transducer System, which also includes an 11 mm proximity probe and an extension cable. The -00 option signifies no specific agency approvals, making it suitable for general-purpose industrial installations where hazardous area certifications are not required. The 3300 XL series is known for its improved performance over older designs, offering enhanced immunity to radio frequency interference (RFI) and transient protection.

Features

• Non-contact eddy current measurement principle for vibration and position.
• Configured with Option -12 for 0.040 in (1.0 mm) full-scale range, compatible with 3300 XL 11 mm probes.
• High accuracy and linearity for critical machinery monitoring.
• Improved RFI/EMI immunity meeting CE mark requirements.
• Robust design for reliable operation in industrial environments.
• Offers high transient overvoltage protection.
• Standard configuration, designated by -00, for non-hazardous areas.
• Typically mounted in a panel, DIN rail, or custom enclosure.

Applications

• Axial position (thrust) measurement on turbines, compressors, and pumps.
• Radial vibration monitoring on large rotating machinery shafts.
• Differential expansion measurements.
• Rod drop monitoring on reciprocating compressors.
• Monitoring shaft position relative to bearing clearances.
• Machinery protection and condition monitoring systems in power generation, oil and gas, petrochemical, and manufacturing industries.

Ordering Information

Option	Code on This SKU	Description
Orderable Part Number	330780-12-00	3300 XL Proximitor Sensor
A - Proximitor Sensor	330780	3300 XL 11 mm Proximitor Sensor
B - Full-Scale Range/Probe Compatibility	12	0.040 in (1.0 mm) Full-Scale Range, for 11 mm Probes
C - Agency Approval	00	No Agency Approval (Standard)

Technical Specifications

Parameter	Value
Manufacturer	Bently Nevada (Baker Hughes)
Part Number/Model	330780-12-00
System Compatibility	3300 XL 11 mm Proximity Probes, 3300 XL Extension Cables
Input Power	-24 Vdc to -30 Vdc (typically -24 Vdc nominal)
Input Current	12 mA maximum, typical (without alarm option)
Output Voltage Range	-2 Vdc to -22 Vdc (typical linear range)
Full-Scale Range (FSR)	0.040 in (1.0 mm)
Sensitivity	7.87 V/mm (200 mV/mil) +/-6% typical
Linearity	+/-0.0001 in (+/-0.0025 mm) typical
Frequency Response	0 Hz to 10 kHz (typical)
Temperature Range (Operating)	-34 degC to +71 degC (-30 degF to +160 degF)
Temperature Range (Storage)	-51 degC to +100 degC (-60 degF to +212 degF)
Humidity	100% condensing, non-submerging
Mounting	Panel or DIN rail mount (with optional mounting clip)

Installation Guidelines

Proper installation is crucial for the optimal performance of the 3300 XL Proximitor Sensor. Ensure the sensor is securely mounted on a flat surface or DIN rail in a vibration-free area. All cables, including the probe and extension cables, must be routed away from sources of electrical noise and high-voltage lines to prevent interference. Grounding practices must adhere to Bently Nevada recommendations to ensure proper system performance and safety. The probe gap voltage should be set according to specific machinery requirements for accurate measurement and to utilize the full linear range of the Proximitor.

Compliance and Certifications

The 330780-12-00, specified with Option -00, does not include specific hazardous area agency approvals such as ATEX, IECEx, or CSA. It complies with general CE mark requirements for electromagnetic compatibility (EMC) and low voltage directive (LVD) for use in industrial environments.