330854-040-24-CN Bently Nevada 3300 XL 25 mm Extension Cable

Availability: 10 left in stock

The Bently Nevada 330854-040-24-CN, also cataloged as the 330854 Extension Cable, operates as a dedicated hardware component for high-frequency signal...

SKU: 330854-040-24-CN

Manufacturer: Bently Nevada
Product No.: 330854-040-24-CN
Product Type: Proximity Sensors
Product Origin: USA
Payment:T/T, Western Union
Weight: 1500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Bently Nevada 330854-040-24-CN, also cataloged as the 330854 Extension Cable, operates as a dedicated hardware component for high-frequency signal transmission between proximity probes and Proximitor sensors within 3500 Machinery Protection System networks. It transmits excitation signals and conditions returned RF parameters across the transducer interface without dynamic signal attenuation.

Suffix Breakdown & Model Matrix

The catalog ordering options for the 330854-040-24-CN extension cable define the following hardware configuration:

330854: Base Model Designation for 3300 XL 25 mm Extension Cable.
040: Cable Length Option – 4.0 metres (13.1 feet).
24: Armor and Cable Option – High Temperature FluidLoc cable.
CN: Agency Approval Option – ATEX/IECEx and Chinese NEPSI hazardous area marking.

Hardware Specifications

Parameter	Specification
Model	330854-040-24-CN
Brand	Bently Nevada
Origin	United States
Weight	0.18 kg (Shipping Weight: 1.5 kg)
Dimensions	4.0 m (13.1 ft) length
Operating Temp	-35 deg C to +200 deg C
Power Consumption	Passive physical media (0 W)
Cable Construction	High Temperature FluidLoc cable with integrated liquid barrier
System Matching	4.0 m matched length for 25 mm proximity transducer systems
Hazardous Area Certifications	ATEX, IECEx, NEPSI approvals

Gap Voltage Validation and Signal Integrity

The 330854-040-24-CN extension cable maintains matched impedance and capacitance parameters required to preserve eddy-current probe scaling across the 25 mm transducer system measuring range. The High Temperature FluidLoc construction incorporates an internal seal that prevents process liquid migration through the inner cable layers, protecting electrical characteristics in harsh environment runs.

During field commissioning, gap voltage validation requires verifying the baseline voltage at the Proximitor sensor output terminals against a nominal -10 VDC target at mechanical center span. Precise physical impedance matching suppresses signal phase shifts during high-amplitude rotor dynamics events and maintains optimal cross-talk suppression between closely spaced orthogonal probe channels.

Frequently Asked Questions

Q: Can the 330854-040-24-CN extension cable be shortened or spliced during field routing?

A: No. Shortening or splicing alters the physical inductance and capacitance of the matched coaxial path, which destroys sensor calibration, skews eddy-current probe scaling, and leads to incorrect gap voltage validation readings.

Q: What function does the High Temperature FluidLoc cable option (Option 24) fulfill?

A: The FluidLoc cable utilizes an internal barrier to prevent oil, water, and synthetic lubricants from wicking through the interior of the cable jacket into the terminal enclosure, preserving insulation resistance under thermal stress up to +200 deg C.

Field Installation Guidelines

Inspect the FluidLoc cable jacket, end fittings, and coaxial contacts for physical damage, oil, or debris prior to installation.
Route the cable through metal conduit or dedicated wireways, maintaining a minimum static bend radius of 25.4 mm (1.0 in).
Maintain at least 300 mm separation between the extension cable and high-voltage AC power lines or variable frequency drive (VFD) cabling to prevent inductive electrical noise.
Align the coaxial connectors, seat firmly until the locking mechanism engages, and slide a protective connector boot over the interface.
Perform gap voltage validation across the Proximitor output terminals using a digital multimeter; confirm the reading matches the static reference target (typically -10 VDC).
Connect the cable shield to instrument earth ground exclusively at the Proximitor enclosure end. Leave the shield floating at the probe side to prevent ground loop currents.

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