Vibration Extension Cable | 1X35668 | Bently Nevada

Technical Specifications

The Bently Nevada 1X35668 is a vibration extension cable. It is used for vibration and displacement monitoring of centrifugal air compressors, refrigeration compressors, and compact rotating machinery in areas with extremely limited installation space.

Differentiating 1X35668 (NSv cable) from Bentley's most common 330130 (standard 3300 XL 8mm cable)

Calibrated for compact machines: NSv (Narrow Surface version) represents a narrow target surface/narrow space version. It is specifically designed for machines with small shafts, small bearing housings, or very narrow journal surfaces where a standard 8mm probe cannot focus (such as centrifugal air compressor skids from major brands like Ingersoll Rand).

Incompatible impedance compensation: The 1X35668 extension cable has been precisely calibrated in terms of internal capacitance and inductive impedance for NSv probes and NSv preamplifiers. It is strictly forbidden to connect it to a standard 8mm 3300 XL preamplifier, otherwise it will cause complete signal linearity distortion, resulting in channel faults or inaccurate vibration measurements in the 3500 system.

Field Installation & Electrical Isolation Specifications

Connector protection: The coaxial connectors at both ends are precision components. After installation, a heat-shrink or insulating protector must be applied. If exposed metal contacts trays, cabinets, or machine housing, the signal may be grounded or locked, causing alarm or disconnection.

No cable cutting allowed: The total system length (probe + extension cable = 5 m or 7 m system) is critical to circuit capacitance. The cable must not be cut or re-spliced in the field. Excess cable should be neatly coiled (minimum 100 mm bend diameter) and secured inside the enclosure or junction box.

Technical FAQ

Q: What is the standard electrical length of this cable 1X35668?

A: The standard factory total length is 5 m (approximately 16.4 ft).

Q: What are the connector types at both ends of 1X35668?

A: It uses a two-stage coaxial connection: one end is a mini coaxial male plug, and the other end is a mini coaxial female socket, both equipped with insulating protective sleeves to ensure no leakage of high-frequency RF signals.

Q: What material is used for the outer jacket of 1X35668, and what is its temperature rating?

A: The outer jacket is made of high-strength PVC or chemical-resistant Teflon composite material, with a rated operating temperature of -40°C to +85°C.

Q: How should the coaxial connectors be protected during installation of 1X35668?

A: After tightening the connectors, the original transparent insulating heat-shrink sleeve must be applied to fully seal the joint. This prevents loosening under high vibration and isolates the sensor ground to reduce field noise interference.

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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