3500-70M Recip Impulse Velocity Monitor Datasheet - 166766

3500/70M Recip Impulse Velocity MonitorDatasheetBently Nevada Machinery Condition Monitoring166766 Rev. MDescriptionThe 3500/70M Recip Impulse Velocity Monitor is a 4-channeldevice used as part of the reciprocating compressorsolutions package to monitor compressor crankcase andcrosshead vibration. The monitor accepts input from seismictransducers, conditions the signal to derive vibrationmeasurements, and compares the conditioned signals withuser-programmable alarms.You can program each channel using the 3500 RackConfiguration Software to perform the following functions:lImpulse AccelerationlAcceleration 2lRecip VelocitylLow Frequency Recip VelocityThe monitor channels are programmed in pairs and canperform up to two of the aforementioned functions at a time.For example, channels 1 and 2 can perform one functionwhile channels 3 and 4 perform another or the samefunction.The primary purpose of the 3500/70M Recip Impulse VelocityMonitor is to provide the following:llMachinery protection for reciprocating compressors bycontinuously comparing monitored parametersagainst configured alarm setpoints to drive alarmsEssential reciprocating compressor machineinformation for both operations and maintenancepersonnelEach channel, depending on configuration, typicallyconditions its input signal to generate various parameterscalled static values. You can configure alert setpoints foreach active static value and danger setpoints for any two ofthe active static values.

3500/70M Recip Impulse Velocity MonitorDatasheet166766 Rev. MImpedanceSpecificationsProtectionInputsRecorder OutputsSignalAccepts from 1 to 4 proximityprobe signals.Input impedance10 kΩ acceleration input 1 MΩ velocity inputSpecial inhibitContact closure5 Vdc @ 390μA typicalPowerconsumption7.7 watts, nominalSensitivityImpulseacceleration0.51 – 11.72 mV/(m/s2)5 – 115 mV/gAcceleration 20.51 – 11.72 mV/(m/s2)5 – 115 mV/gRecip velocity3.54 – 22.64 mV/(mm/s)90 – 575 mV/(in/s)Low FrequencyRecip velocity3.54 – 22.64 mV/(mm/s)90 – 575 mV/(in/s)Each connector is short-circuitprotected.Recorder 4 to 20 mA proportional tomonitor full-scale.Selects one static data valuefrom each channel to be used forthat channel’s recorder value.Voltagecompliance 12 Vdc maximumLoad resistance600 Ω maximumResolution0.3662 µA maximumUpdate rate 100 millisecondAccuracyWithin 0.05 mA. 0.14 mA over temperaturerange.Signal ConditioningSpecified at 25 ºC ( 77 ºF) unlessotherwise noted.OutputsImpulse AccelerationFront Panel LEDsWithin 0.33% of full-scaletypical,OK LEDIndicates when the 3500/70MRecip Impulse Velocity Monitor isoperating properly.AccuracyTX/RX LEDIndicates when the 3500/70MRecip Impulse Velocity Monitor iscommunicating with othermodules in the 3500 rack.Band start0 to 359 1 resolutionBand duration1 to 360 1 resolutionBypass LEDIndicates when the 3500/70MRecip Impulse Velocity Monitor isin Bypass Mode.Frequency ResponseTransducer Power SupplyVoltage-22 Vdc minimumCurrent40 mA maximum15 mA maximum on startup toguarantee no fold backOutputimpedance20 Ω typical operating1000 Ω typical under fold backconditionsProtectionFoldback current15.4 to 24.9 mABias filter-3 dB at 0.01 Hz1-poleLow-PassNot OK filter-3 dB at 2400 Hz1-poleLow-PassStatic valuesSmoothing filter8-revolution average valueFilter QualityHigh-pass4-pole80 dB per decade24 dB per octaveLow-pass4-pole80 dB per decade24 dB per octaveFront Panel Buffered OutputsBufferedTransducerOutputsThe front of each monitor hasone coaxial connector for eachchannel.Output550 Ω typical 1% maximumExclusive of filters2/13

3500/70M Recip Impulse Velocity MonitorDatasheetCornerSelectionPeak 3 dBCorner166766 Rev. MRecip VelocityRMS 3 dBCornerHigh-pass3 - 3000 Hz10 - 3000 HzLow-pass30 - 30000 Hz40 - 30000 HzAccuracyWithin 0.33% of full-scaletypical 1% maximumExclusive of filtersVelomitorAdditional accuracy degradationoccurs when full scale signallevels are low:Full Scale 0-0.5: 3% typicalFull Scale 0-1.0: 2% typicalFull Scale 0-2.0: 1% typicalAcceleration 2AccuracyWithin 0.33% of full-scaletypical 1% maximumExclusive of filtersFrequency ResponseFrequency ResponseBias filter-3 dB at 0.01 Hz1-poleLow-PassBias filter-3 dB at 0.01 Hz1-poleLow-PassNot OK filter-3 dB at 2400 Hz1-poleLow-PassNot OK filter-3 dB at 2400 Hz1-poleLow-PassIntegration filter-3 db at 0.34 Hz1-poleLow-Pass-3 dB at 0.3 HzPeak static values 1-poleLow-Pass-3 dB at 0.1 HzRMS static values 1-poleLow-Pass-3 dB at 0.1 HzRMS static values 1-poleLow-Pass-3 dB at 0.3 HzPeak static values 1-poleLow-PassFilter QualityHigh-pass4-pole80 dB per decade24 dB per octaveLow-pass4-pole80 dB per decade24 dB per octaveRMS 3 dBCorner1X & 2X VectorFilterConstant Q filter with bandwidth 3% running speedQ 16.7Filter QualityIntegrate3 dBCornerCornerSelectionPk 3 dBCornerHigh-pass3 - 3000Hz10 - 3000Hz3-3000 HzLow-pass30-30000Hz40 30000 Hz40-20000Hz3/13High-pass4-pole80 dB per decade24 dB per octaveLow-pass2-pole40 dB per decade12 dB per octaveIntegrate3 dBCornerCornerSelectionPk 3 dBCornerRMS 3 dBCornerHigh-pass1- 400 Hz10-400 Hz3-400 HzLow-pass40-5500Hz60-5500Hz40-5500Hz

3500/70M Recip Impulse Velocity MonitorDatasheet166766 Rev. MRack Space RequirementsLow Frequency Recip VelocityAccuracyWithin 0.33% of full-scaletypical 1% maximumExclusive of filtersVelomitorAdditional accuracy degradationoccurs when full scale signallevels are low:Full Scale 0-0.5: 3% typicalFull Scale 0-1.0: 2% typicalFull Scale 0-2.0: 1% typical1 full-height rear slotMonitor Module (Main Board)Dimensions(Height x Width xDepth)241.3 mm x 24.4 mm x 241.8mm(9.50 in x 0.96 in x 9.52 in)Weight0.91 kg (2.0 lb)I/O Modules (non-barrier)Bias filter-3 dB at 0.01 Hz1-poleLow-PassNot OK filter-3 dB at 2400 Hz1-poleLow-PassIntegration filter-3 db at 0.34 Hz1-poleLow-PassDimensions(Height x Width xDepth)241.3 mm x 24.4 mm x 99.1mm(9.50 in x 0.96 in x 3.90 in)Weight0.20 kg (0.44 lb)I/O Modules (barrier)-3 dB at 0.1 HzRMS static values 1-poleLow-PassDimensions(Height x Width xDepth)241.3 mm x 24.4 mm x 163.1mm(9.50 in x 0.96 in x 6.42 in)Weight0.46 kg (1.01 lb)Alarms-3 dB at 0.3 HzPeak static values 1-poleLow-PassUse Rack Configuration Softwareto set alert levels for each valuemeasured by the monitor anddanger setpoints for any two ofthe values measured by themonitor.Constant Q filter with bandwidth 3% running speedQ 16.7Filter QualityHigh-pass4-pole80 dB per decade24 dB per octaveLow-pass2-pole40 dB per decade12 dB per octaveCornerSelection1 full-height front slotI/O ModulesPhysicalFrequency Response1X & 2X VectorFilterMonitorPeak andIntegrate 3 dBCornerAlarm SetpointsAccuracy ofalarm setpointsRMS 3 dBCornerHigh-pass0.750 - 100 Hz0.750 - 100 HzLow-pass10 - 1375 Hz15 - 1375 HzAlarms are adjustable from 0 to100% of full-scale for eachmeasured value. However, whenthe full-scale range exceeds therange of the transducer, therange of the transducer will limitthe setpoint.Within 0.13% of the desired valueAlarm Time DelaysYou can program alarm delays using 3500Rack Configuration Software.4/13AlertFrom one to 60 seconds in onesecond intervalsDanger0.1 seconds (nominal) or fromone to 60 seconds in one secondintervals

3500/70M Recip Impulse Velocity MonitorDatasheet166766 Rev. MStatic ValuesBarrier ParametersStatic values are measurements used tomonitor the machine. The 3500/70M RecipImpulse Velocity Monitor returns static valuesfrom the following channels:ImpulseAccelerationDirectBias VoltageSix user-adjustable crank anglebands with peak or RMSacceleration in the bandAcceleration 2Direct1X Amplitude2X Amplitude1X Phase2X PhaseBias VoltageRecip VelocityDirect1X Amplitude2X Amplitude1X Phase2X PhaseBias VoltageLow FrequencyRecip VelocityDirect1X Amplitude2X Amplitude1X Phase2X PhaseBias VoltageThe following parameters apply to CSA-NRTL/Cand CENELEC approvals.Proximitor BarrierCircuitParametersVmax (PWR) 26.80V (SIG) 14.05 VImax (PWR) 112.8 mA(SIG) 2.82 mARmin (PWR) 237.6 Ω(SIG) 4985 ΩChannelParameters(Entity)Vmax 28.0 VImax 115.62 mARmin (PWR) 237.6 Ω(SIG) 4985 ΩSeismic BarrierCircuitParametersVmax (PWR) 27.25 VImax (PWR) 91.8 mARmin (PWR) 297 ΩChannelParameters(Entity)Vmax 27.25 VImax 91.8 mARmin (PWR) 297 ΩEnvironmental LimitsBias voltage contains no informationabout the condition of the machinerybeing monitored. It is provided formonitor system diagnostics.OperatingTemperature5/13When used with Internal /External Termination Proximitor /Seismic I/O Module:-30 C to 65 C(-22 F to 149 F)When used with Proximitor /Seismic Internal Barrier I/OModule (Internal Termination)0 C to 65 C(32 F to 149 F)StorageTemperature-40 C to 85 C(-40 F to 185 F)Humidity95%Non-condensing

3500/70M Recip Impulse Velocity MonitorDatasheet166766 Rev. MHazardous Area ApprovalsCompliance andCertificationsFor the detailed listing of country and productspecific approvals, refer to the Approvals QuickReference Guide (108M1756) available fromBently.com.FCCCSA/NRTL/CThis device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:llThis device may not cause harmfulinterference.When used withI/O moduleordering optionswithout internalbarriersThis device must accept anyinterference received, includinginterference that may causeundesired operation.EMCEuropean Community Directive:When used withI/O moduleordering optionswith internalbarriersEMC Directive 2014/30/EUStandards:EN 61000-6-2 Immunity forIndustrial EnvironmentsEN 61000-6-4 Emissions forIndustrial EnvironmentsClass I, Zone 2: AEx/Ex nA nC icIIC T4 Gc;Class I, Zone 2: AEx/Ex ec nC icIIC T4 Gc;Class I, Division 2, Groups A, B, C,and D;T4 @ Ta -20 C to 65 C (-4 Fto 149 F)When installed per drawing149243 or 149244.Class I, Zone 2: AEx/Ex nA nC ic[ia Ga] IIC T4 Gc;Class I, Zone 2: AEx/Ex ec nC ic[ia Ga] IIC T4 Gc;Class I, Division 2, Groups A, B, C,and D (W/ IS Output for Division1)T4 @ Ta -20 C to 65 C (-4 Fto 149 F)When installed per drawing138547.ATEX/IECExElectrical SafetyII 3 GEuropean Community Directive:When used withI/O moduleordering optionswithout internalbarriersLV Directive 2014/35/EUStandards:EN 61010-1RoHSEuropean Community Directive:When used withI/O moduleordering optionswith internalbarriersRoHS Directive 2011/65/EUMaritimeABS - Marine and Offshore ApplicationsDNV GL Rules for Classification – Ships,Offshore Units, and High Speed and LightCraft6/13Ex nA nC ic IIC T4 Gc;Ex ec nC ic IIC T4 Gc;T4 @ Ta -20 C to 65 C (-4 Fto 149 F)When installed per drawing149243 or 149244.II 3(1) GEx nA nC ic [ia Ga] IIC T4 Gc;Ex ec nC ic [ia Ga] IIC T4 Gc;T4 @ Ta -20 C to 65 C (-4 Fto 149 F)When installed per drawing138547.

3500/70M Recip Impulse Velocity MonitorDatasheet166766 Rev. MOrdering ConsiderationslllFor I/O modules with ExternalTerminations, order the ExternalTermination Blocks and cable separatelyfor each I/O module.For the Internal Barriers, refer to the 3500Internal Barrier datasheet, document141495.External Termination Blocks cannot beused with Internal Termination I/OModules.The lower limit for machine speed is 60RPM in standard product. For machinespeeds down to 30 RPM, modification135M8137-01 is required.Software Compatibility3500/01ConfigurationSoftwareVersion 5.2 or later3500/02 DataAcquisitionSoftwareVersion 2.50 or later3500/03Operator DisplaySoftwareVersion 1.50 or laterSystem1 Software Version 6.90 or laterFirmware Compatibility3500/70MFirmwareVersion 4.21 or later3500/22M TDIFirmwareVersion 1.75 or later3500/22M USB TDIVersion 4.05 or laterFirmware7/13