Bently Nevada 8LSP93 Probe Extension Cable Unit

Module Feature

8LSP93 belongs to Bently Nevada 3300 XL eddy current sensor system extension cable. It is precision matched coaxial cable, used to extend the distance between proximity probe and vibration monitor. It adopts double-shielded anti-interference structure, fixed characteristic impedance, and must be matched with the same series probe and monitor to guarantee vibration and gap measurement accuracy. It has stainless steel armored or standard jacket options, waterproof threaded connector at both ends. It complies with API 670 standard, widely used on steam turbines, centrifugal compressors, pumps, gearboxes and other high-speed rotating machinery shaft vibration, thrust gap monitoring.

Working principle

The high-frequency radio frequency signal sent by the monitor is transmitted through this cable to the eddy current probe. The reflected signal from the probe returns along the same cable to the monitor circuit. Cable length and impedance directly affect the calibration curve. Changing or replacing the extension cable requires re-calibration of the probe system.

Onboard components

Coaxial signal core, inner insulating layer, double copper shielding layer, outer protective jacket, metal threaded connectors at both ends.

LED indicatorsNo LED indicator on cable assembly. Status alarm is displayed on matched Bently Nevada vibration monitor.

Hardware self‑diagnosisCable itself has no self-check function. The monitor can detect cable open circuit, short circuit and signal abnormality through system diagnostic function.

Programming softwareBently Nevada System 1 software, used for vibration data collection, configuration and alarm setup.

Electrical & Process Parameters

Model:8LSP93 Brand:Bently Nevada Device type:Proximity Probe Extension Cable Series:3300 XL Function:Signal transmission between eddy current probe and vibration monitor

Mechanical & Structure

Mounting:Fixed laying along machine casing or cable tray Protection class:IP67 for connector assembly Housing:PVC / fluoropolymer or stainless steel armor jacket

Environmental

Operating temperature:-40℃ ~ +150℃ (depends on jacket material) Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:API 670, ATEX optional Status:Bently Nevada original vibration sensor spare

Installation

Route cable away from high-power AC cables and heat sources. Do not exceed minimum bending radius. Tighten connectors to specified torque, avoid thread damage. After wiring, perform probe gap and system calibration. Inspect connector corrosion and cable abrasion periodically.

InterfaceProbe end threaded connector, monitor end threaded connector.

Diagnostic

Monitor "probe fault": Cable open or short circuit, connector loose, water ingress inside connector. Vibration reading drift: Cable squeezed, excessive bending stress, impedance mismatch. Intermittent alarm: Poor contact inside connector, vibration causing connector loosening.

Product BriefBently Nevada 8LSP93 3300 XL extension cable, matched for eddy current proximity probe system, for turbine