Description
Brand：BENTLY NEVADA Model number： 330400-01-05
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: USA
Price: Please contact us Product weight：1.0kg
Product Dimensions：
These accelerometers are intended for critical machineryapplications where casing acceleration measurements arerequired, such as gear mesh monitoring. The 330400 isdesigned to address the requirements of AmericanPetroleum Institute Standard 670 for accelerometers. Itprovides an amplitude range of 50 g peak and a sensitivity of100 mV/g. The 330425 is identical except it provides a largeramplitude range (75 g peak) and a sensitivity of 25 mV/g. Most common machine malfunctions (unbalance,misalignment, etc.) occur on the rotor andoriginate as an increase (or at least a change) inrotor vibration. For any individual casingmeasurement to be effective for overall machineprotection, the system must continually transmit asignificant amount of rotor vibration to themachine casing, or mounting location of thetransducer.In addition, be careful to install the accelerometertransducer on the bearing housing or machinecasing. Improper installation may decrease thetransducer amplitude and frequency responseand/or generate false signals that do not representactual vibration. Refer to the appropriate instructionmanuals and Application Notes.Upon request, Bently Nevada provides engineeringservices that can identify the appropriate machinehousing measurements and installation assistanceif needed.330400 and 330425 AccelerometerAcceleration TransducersDatasheetBently Nevada Machinery Condition Monitoring 141638 Rev. AASpecificationsParameters are specified from +20 to +30 °C(+68 to +86 °F) and 100 Hz unless otherwiseindicated.Operation outside the specifiedlimits may result in false readings orloss of machine monitoring.Electrical330400Sensitivity 10.2 mV/m/s2 (100 mV/g) ±5%.Accelerationrange490 m/s2 (50 g) peak overallacceleration within the 10 Hz to15 kHz frequency span.Vibration at frequencies above15 kHz, especially at thetransducers resonance willsignificantly decrease thisrange.AmplitudeLinearity±1% to 490 m/ s2 (50 g) peak.BroadbandNoise Floor(10 Hz to 15kHz)0.039 m/s2 (0.004 g) rms.330425Sensitivity 2.5 mV/m/s2 (25 mV/g) ±5%.AccelerationRange735 m/s2 (75 g) peak overallacceleration within the 10 Hz to15 kHz frequency span.Vibration at frequencies above15 kHz, especially at thetransducer’s resonance, willsignificantly decrease thisrange.AmplitudeLinearity ±1% to 735 m/s2 (75 g) peak.BroadbandNoise Floor(10 Hz to 15kHz)0.098 m/s2 (0.01 g) rms.2/11330400 and 330425 Accelerometer Acceleration TransducersDatasheet 141638 Rev. AABoth UnitsFrequencyResponse10 Hz to 15 kHz(600 cpm to 900,000 cpm)±3dB;30 Hz to 10 kHz(1800 cpm to 600,000 cpm)±10%TemperatureSensitivity-11% to +3% typical over theoperating temperature range.TransverseSensitivity Less than 5% of axial.MountedResonantFrequencyGreater than 30 kHz.Amplitude ofResonantPeak20 dB maximum.Base Strain SensitivityFor serialnumberspreceded bythe letter “G”(including allnew sensors49 mm/s2/mstrain (0.005g/mstrain)For serialnumbersNOTpreceded bythe letter “G”(shippedprior to April2004)980 mm/s2/mstrain (0.100g/mstrain) without MountingBase (API adapter);4.9 mm/s2/mstrain (0.0005g/mstrain) with Mounting Base(API adapter) supplied with theaccelerometer. For units bearingserial numbers NOTpreceded by theletter “G”, BentlyNevadarecommendsinstalling with theMounting Base tominimize base strainsensitivity.Maximumcable length305 metres (1000 ft) with nodegradation of signal.Power requirementsInputVoltage -24 ± 0.5 Vdc.Bias Current 2 mA nominal.Output BiasVoltage: -8.5 ± 0.5 Vdc.Grounding Case isolated.3/11330400 and 330425 Accelerometer Acceleration TransducersDatasheet 141638 Rev. AAEnvironmental LimitsOperatingand storagetemperature-55°C to +121°C (-67°F to+250°F)ShockSurvivability49,050 m/s2 (5000 g) peak,maximum.Relativehumidity100% condensing, nonsubmerged. Case ishermetically sealed.MagneticFieldSusceptibility<2.21 mm/s2/gauss (225mg/gauss) [50 gauss, 50-60Hz].IP RatingEquivalent to an IP 68 (Dusttight and watertight). Pleasenote that this is for the sensoronly and does not apply to thecable.PhysicalWeight (nocable) 99 g (3.5 oz), typicalDiameter 23 mm (0.93 in).Height 59 mm (2.3 in), includingmounting stud.Connector 3-pin MIL-C-5015 Receptacle316L stainless steelMountingSurface 32 minch rms.MountingTorque 4.1 N·m (3.0 ft·lb).CaseMaterial 316L stainless steelWeight (nocable) 100 g (3.5 oz), typicalMountingAngle Any orientation4/11330400 and 330425 Accelerometer Acceleration TransducersDatasheet 141638 Rev. AACompliance andCertificationsHazardous Area ApprovalsFor the detailed listing of country andproduct specific approvals, refer tothe Approvals Quick Reference Guide(108M1756) available from Bently.com.CSA/NRTL/C190501 (Agency Approval Options 01 through 04)IntrinsicallySafeEx ia IIC T4:Class I, Div 1, Groups A, B, C, D.Class II, Group E, F and GClass IIIAEx ia IIC T4:Class I, Div 1, Groups A, B, C, D;Class II, Groups E, F, GClass IIIInstall per drawing 167536T4 @ -40°C ≤ Ta ≤ +100°C(-40°F ≤ Ta ≤ +212°F)IntrinsicallySafe andNonIncendiveEx nL IIC T4Class I, Division 2, Groups A, B, C and DAEx nA T4Class I, Division 2, Groups A, B, C and DInstall per drawing 167536T4 @ -40°C ≤ Ta ≤ +100°C(-40°F ≤ Ta ≤ +212°F)330400,330425Ex ia IIC T4AEx ia IIC T4Class I, Div 1 Groups A, B, C and DClass II, Groups E, F, and GClass IIIT4 @ -40°C ≤ Ta ≤ 100°CInstall per dwg 16753833050
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