330878-90-00 Bently Nevada Proximitor Sensor

BENTLY NEVADA 330878-90-00 Proximitor Sensor

BENTLY NEVADA 330878-90-00 Proximitor Sensor

Availability: 10 left in stock

Configured for high-frequency displacement measurement in rotating machinery monitoring networks, the BENTLY NEVADA 330878-90-00 (330878 Proximitor Sensor) provides direct physical...

SKU: 330878-90-00

Manufacturer: Bently Nevada
Product No.: 330878-90-00
Product Type: Proximity Sensors
Product Origin: USA
Payment:T/T, Western Union
Weight: 255g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Configured for high-frequency displacement measurement in rotating machinery monitoring networks, the BENTLY NEVADA 330878-90-00 (330878 Proximitor Sensor) provides direct physical signal processing between the non-contacting probe and the vibration monitoring instrumentation.

Suffix Breakdown & Model Matrix

Suffix	Description
90	9.0 meters system length, panel mount configuration
00	No hazardous area agency approvals

Hardware Specifications

Parameter	Specification
Model	330878-90-00
Brand	Bently Nevada
Origin	USA
Weight	0.255 kg (approx.)
Dimensions	60 mm x 60 mm x 100 mm
Operating Temp	-35 deg C to +85 deg C
Power Consumption	12 mA maximum

Mechanical Monitoring and TSI Characteristics

The 330878-90-00 utilizes eddy-current probe scaling to convert the distance between the probe tip and a metallic target into a proportional electrical signal. During commissioning, installers must perform gap voltage validation to confirm a -10 VDC target, which ensures the device is operating at the center of its linear range for optimal fidelity in rotor dynamics observation. In configurations utilizing multiple sensors, cross-talk suppression is achieved by maintaining strictly defined spacing between adjacent probe tips, preventing inductive interference within the oscillator circuit.

Frequently Asked Questions

Q: Is it permissible to field-modify the 9.0 meter coaxial cable length?

A: No. The 3300 XL Proximitor system is factory-calibrated as an integrated assembly (probe, extension cable, and Proximitor). Any physical alteration to the system length will result in calibration drift and measurement errors.

Q: How is the Proximitor grounded within the monitoring cabinet?

A: The Proximitor chassis must be bonded to the cabinet ground to establish a common reference potential and ensure effective electromagnetic shielding.

Field Installation Guidelines

Mount the Proximitor to a metal panel using the integrated holes, ensuring direct contact with the panel for chassis grounding.
Route signal cabling through rigid, shielded conduit to minimize the risk of RFI/EMI noise injection from high-voltage AC lines.
Tighten all BNC-style coaxial connectors until finger-tight; do not use pliers or other mechanical tools to prevent damage to the connector dielectric.
Verify that the probe tip is installed perpendicular to the shaft target to prevent measurement artifacts caused by radial runout.
Terminate the signal shield at the monitoring instrument end only to mitigate the formation of ground loops in the field wiring.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.