Bently Nevada 330450-20 High Temperature Acceleration System Sensor

Product Overview – Bently Nevada 330450-20 High Temperature Acceleration System330450-20 from Bently Nevada is a rugged vibration monitoring solution for extreme heat environments.Designed for continuous vibration monitoring in turbines, compressors, and heavy machinery.Handles surface temperatures up to 400°C at the sensing head.Provides stable signals for predictive maintenance and fault detection.Integrated hardline cable improves durability in harsh installations.Hermetically sealed housing prevents moisture and contamination.Supports long cable runs up to 305 meters without signal loss.Optimized for high-temperature industrial monitoring applications.Technical SpecificationsBrand: Bently NevadaModel: 330450-20Product Type: High Temperature Acceleration SystemCable Length: 2 metersMeasurement Range: 80 g peak (785 m/s²)Sensitivity: 100 mV/g ±5%Frequency Response: 15 Hz to 10 kHzAmplitude Linearity: ±2% across full rangeNoise Floor: 0.006 g rms (10 Hz – 15 kHz)Transverse Sensitivity: Less than 5% of axialResonant Frequency: Above 15 kHzPower Supply: -24 VDC ±0.5 VBias Current: 2 mA nominalOutput Bias Voltage: -12 VDC ±0.5 VConnector: 3-pin Mil-C-5015 stainless steel connectorHousing Material: 300-series stainless steelWeight: 635 g (1.40 lb)Maximum Cable Length: 305 m without signal degradationTemperature CapabilitySensor Surface: -55°C to 400°CIntegral Hardline Cable: -55°C to 400°CElectronic Housing: -55°C to 100°COptional sensor cable version supports up to 482°C.Environmental DurabilityShock survivability up to 2500 g peak.Hermetically sealed enclosure resists moisture.Operates in up to 100% relative humidity when non-submerged.Case electrically isolated to reduce ground noise.Minimum cable bend radius: 51 mm.Installation GuidelinesMount on rigid machine surfaces for best vibration transmission.Ensure proper connector engagement for reliable signal output.Avoid cable bends smaller than the minimum radius.Use approved intrinsic safety barriers when required.Follow installation drawing 168078 for hazardous locations.Commissioning and MaintenanceVerify power supply voltage before system startup.Check signal output using vibration monitoring equipment.Inspect connectors periodically for corrosion or damage.Clean mounting surfaces during scheduled maintenance.Long service life reduces replacement frequency.CompatibilityWorks with Bently Nevada vibration monitoring systems.Compatible with industrial condition monitoring platforms.Supports intrinsically safe circuits for hazardous areas.Suitable for integration with turbine and compressor monitoring.Certifications and Safety ApprovalsATEX / IECEx CertifiedEx ia IIC T4 intrinsic safety protectionClass I Division 1 Groups A, B, C, DClass II Division 1 Groups E, F, GClass III Division 1 approvalZone 2: Ex ec / Ex nL protectionEnclosure Type 4X industrial protectionTypical ApplicationsGas and steam turbine monitoringIndustrial compressor vibration detectionHigh-temperature process equipmentPetrochemical plant rotating machineryPredictive maintenance systemsDiagnostic CapabilitiesDetect early bearing faults and imbalance.Identify shaft misalignment and structural looseness.Monitor vibration trends for predictive maintenance.Improve equipment reliability and uptime.Packing List1 × Bently Nevada 330450-20 acceleration systemFactory sealed protective packagingProduct identification and documentationWarranty and Shipping12-month warranty against manufacturing defects.Worldwide delivery available.Shipping carriers: FedEx, UPS, DHL.Secure packaging protects equipment during transit.FAQ – Selection and Practical ExperienceWhat makes this sensor suitable for high temperature machines?The sensing head tolerates temperatures up to 400°C while maintaining measurement accuracy.Can the sensor operate in hazardous areas?Yes. It carries ATEX and IECEx intrinsic safety approvals for explosive environments.How long can the signal cable be?The system supports cable lengths up to 305 meters without signal degradation.What machines commonly use this sensor?Gas turbines, compressors, pumps, and refinery rotating equipment.How do I select the correct cable length?Choose the model suffix based on installation distance. Model 330450-20 provides a 2-meter cable.How often should the sensor be inspected?Inspect during routine vibration monitoring maintenance cycles.Copyright © 2026 Oiltech Controls Limited. All rights reserved.Original Source: https://www.oiltechcontrols.com/Powergear X Automation Limited All rights reserved.