3300 XL 50 mm Extension Cable | 330877-80-37-00 | Bently Nevada

Technical Specifications

The Bently Nevada 330877-80-37-00 is a 3300 XL 50 mm Extension Cable, primarily used for vibration and displacement monitoring of large rotating machinery. This extension cable is used to connect to a 50 mm ultra-large differential expansion monitoring system.

Electrical Physical Characteristics and Resistance Diagnostic Standards

Center Conductor: Measure the center pin of the ClickLoc gold connector at both ends of the cable. The standard resistance for an 8.0-meter cable should be between 2.0 Ω ± 0.5 Ω. A reading close to infinity indicates fatigue fracture of the internal core copper wire under tension.

Insulation Resistance: Measure the insulation between the center pin and the outer shielding layer. Under normal conditions, it must be infinite (>50 MΩ). A low reading indicates that lubricating oil, condensate, or metal particles have seeped into the connector.

Signal Dynamic Response and High-Frequency Delay

Velocity of Propagation: The signal propagation speed of this 8-meter triaxial cable is approximately 70% of the speed of light. The round-trip delay of the high-frequency oscillation drive signal (typically around 1.5 MHz) in the 8-meter cable is extremely low and negligible.

Dynamic Frequency Response: The dynamic frequency response range of the entire sensor system is 0 to 10 kHz. This means it can not only accurately measure static thermal expansion, but also capture high-frequency axial micro-amplitude vibrations within 10,000 Hz caused by severe dynamic-static friction or severe surge of the shaft.

Technical FAQ

Q: What is the 330877-80-37-00 mainly used for monitoring in large rotating machinery?
A: Mainly used for ultra-wide-range non-contact axial displacement, thermal expansion, and differential expansion.

Q: What is the maximum linear measurement range that the 330877-80-37-00 can match?
A: With a 50mm probe, it can achieve an ultra-wide linear measurement range of 27.9 mm (1100 mils).

Q: What is the standard output sensitivity of the 330877-80-37-00 system?
A: Its nominal average scale factor is 394 mV/mm.

Q: Why does the 330877-80-37-00 require a stainless steel armor plate with the code "37"? A: Provides robust mechanical protection against crushing, trampling, and scratches for on-site cabling.

Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.

Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.

Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.

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