Product Overview
The Bently Nevada 138493-01 Proximitor Sensor offers high reliability in extreme temperatures and harsh industrial conditions. Designed for precision, it ensures accurate vibration monitoring and long-term durability.
Temperature Specifications
Probe Temperature
Operating & Storage: -35°C to +200°C (-31°F to +392°F)
Short-term Exposure: Up to +250°C (+482°F) for less than 24 hours
Extension Cable Temperature
Operating & Storage: -51°C to +200°C (-60°F to +392°F)
Proximitor Sensor Temperature
Operating: -51°C to +100°C (-60°F to +212°F)
Storage: -51°C to +105°C (-60°F to +221°F)
Sliding Bracket Temperature
Operating & Storage: -35°C to +200°C (-31°F to +392°F)
Humidity Resistance
Less than 3% change in Average Scale Factor (ASF) when tested under IEC 68-2-66 standards.
Pressure Sealing
3300 XL probes use Viton O-rings for pressure sealing.
Probes are not pressure-tested before shipment.
Contact the custom design department for specific pressure-sealing tests.
Mechanical Specifications
Material Composition
Probe Tip: Polyphenylene Sulfide (PPS)
Probe Case: AISI 304 Stainless Steel
Probe Cable: 75 Ω triaxial, PFA-insulated FluidLoc cable
Extension Cable: 75 Ω triaxial, PFA-insulated FluidLoc cable
Proximitor Sensor: A380 Aluminum
Sliding Bracket: Anodized Aluminum and Stainless Steel
System Length
Available in 5-meter or 9-meter configurations, including extension cable.
Optional Armor Protection
Flexible Stainless Steel (SST) with PFA outer jacket.
Strength & Durability
Tensile Strength
330 N (75 lbs) from probe case to probe lead.
270 N (60 lbs) at probe lead to extension cable connectors.
Connector Material
Gold-plated brass and beryllium copper for superior conductivity.
Torque Specifications
Probe & Bracket Torque
Threaded Probe Cases: 45 N·m (400 in·lbf)
M5x0.8 Sliding Bracket Screws: 9.6 N·m (85 in·lbf)
Connector Torque
Recommended: Finger-tight
Maximum Torque: 0.565 N·m (5 in·lbf)
Minimum Bend Radius
25.4 mm (1.0 in) with or without SST armor.
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