Description
Bently 33018‑040‑02‑00
Technical Specifications: Calibrated Total System Length: 4.0 m Probe Compatibility: 3300 XL 8 mm proximity probe series Output Sensitivity: 7.87 V/mm Linear Output Range: ‑2 V ~ ‑18 V DC Power Supply Requirement: ‑17.5 V DC ~ ‑26 V DC Operating Temperature Range: ‑45 °C ~ +85 °C Mounting Style: 4‑hole panel‑mount footprint Input Connector: Click‑Loc coaxial‑connector for extension‑cable Output Interface: Screw‑terminal block for monitor‑wiring Net Weight: 255 g
Functional Features: Precise‑factory‑calibration‑for‑4‑meter‑total‑system‑length‑‑no‑field‑sensitivity‑adjustment‑required.‑High‑immunity‑against‑industrial‑EMI‑RFI‑radio‑frequency‑interference.‑Built‑in‑probe‑circuit‑fault‑diagnosis‑‑detects‑open‑circuit‑short‑circuit‑of‑probe‑and‑cable‑assembly‑and‑outputs‑fault‑state‑signal.‑Stable‑output‑performance‑under‑wide‑temperature‑variation‑condition.‑Panel‑mount‑structure‑fits‑standard‑instrument‑cabinet‑installation.‑Output‑DC‑voltage‑signal‑directly‑compatible‑with‑Bently‑Nevada‑3300‑and‑3500‑series‑monitor‑modules.‑Meets‑API‑670‑rotating‑machinery‑protection‑standard‑requirements.
Application Scenarios: Proximity‑signal‑pre‑processing‑for‑shaft‑vibration‑axial‑displacement‑thrust‑position‑and‑Keyphasor‑phase‑reference‑measurement‑of‑steam‑turbines‑centrifugal‑compressors‑gear‑boxes‑process‑pumps‑generators.‑Installed‑inside‑instrument‑control‑cabinets‑of‑thermal‑power‑petrochemical‑and‑metallurgical‑industrial‑sites.
Performance Parameters: Output Non‑linearity: Less than ±1 % of full‑scale linear‑range Power Consumption: 1.2 W typical Fault‑detection Threshold: Detects probe‑open‑circuit‑and‑short‑circuit‑fault‑status Output Impedance: 100 Ω Insulation Resistance: ≥100 MΩ @500 V DC Maximum Operating Relative Humidity: 95 % non‑condensing
Material Composition: Outer Housing: Glass‑reinforced Polyphenylene Sulfide (PPS) Internal Circuit‑board: High‑temperature‑resistant‑FR4‑printed‑circuit‑board Input‑connector‑body: Gold‑plated‑brass‑alloy Terminal‑block‑components: Copper‑alloy‑with‑tin‑plating Fastening‑hardware: AISI 303‑stainless‑steel
Structural Features: Rectangular‑flat‑panel‑mount‑housing‑with‑four‑corner‑mount‑holes.‑Front‑side‑equipped‑with‑Click‑Loc‑coaxial‑input‑connector‑for‑extension‑cable‑connection.‑Rear‑side‑fitted‑with‑multi‑pin‑screw‑terminal‑block‑for‑power‑supply‑input‑and‑analog‑signal‑output‑wiring.‑All‑electronic‑circuit‑components‑are‑fully‑enclosed‑inside‑housing‑without‑exposed‑circuit‑board‑sections.‑No‑internal‑user‑adjustable‑trimmers‑or‑potentiometers.
Working Principle: Internal‑oscillator‑generates‑high‑frequency‑radio‑frequency‑excitation‑signal‑supplied‑to‑proximity‑probe‑coil‑through‑extension‑cable‑assembly.‑When‑metallic‑target‑gap‑changes‑‑probe‑coil‑impedance‑varies‑according‑to‑eddy‑current‑effect.‑Internal‑demodulator‑circuit‑converts‑impedance‑variation‑into‑DC‑voltage‑signal‑proportional‑to‑probe‑to‑target‑gap‑distance‑‑delivered‑to‑monitor‑module‑via‑terminal‑block.‑Built‑in‑diagnostic‑circuit‑monitors‑probe‑loop‑health‑status‑continuously.
Installation Requirements: Fasten‑Proximitor‑firmly‑onto‑flat‑rigid‑panel‑surface‑using‑four‑mount‑holes.‑Observe‑correct‑polarity‑for‑negative‑DC‑power‑supply‑wiring‑‑reverse‑polarity‑shall‑damage‑internal‑circuit.‑Complete‑Click‑Loc‑connector‑mating‑‑confirm‑full‑click‑lock‑engagement‑after‑plug‑in.‑Route‑probe‑signal‑cable‑separately‑from‑high‑voltage‑power‑cables‑‑do‑not‑share‑same‑conduit.‑Respect‑minimum‑bend‑radius‑of‑connected‑extension‑cable.‑Maintain‑adequate‑ventilation‑space‑around‑Proximitor‑housing‑‑avoid‑heat‑accumulation‑caused‑by‑over‑crowded‑cabinet‑arrangement.‑Signal‑shield‑layer‑applies‑single‑end‑grounding‑rule.‑Total‑length‑of‑connected‑probe‑plus‑extension‑cable‑must‑equal‑4.0‑meter‑calibrated‑system‑length‑of‑this‑Proximitor‑unit.
