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Untitled-1 [intech2000.com]

EXAMINER 1000 SPECIFICATIONSV ibration Sensor:Piezoelectric accelerometer 100 mV/g with magnetic base,probe and 5 foot cable to BNCD isplay:LCD digit , measurement, hold, low battery indicatorMeasurementAcceleration g (RMS)Range:Velocity in/sec., mm/sec (RMS)Envelope ge (peak)Frequency Range:Overall 10 Hz - 10 kHzEnvelope kHz-10 kHzOutput:Sensor Excitation: 12 Vdc @ 2 mA (BNC)Audio Out: mm mini plug; 250 mW into 8 ohms, 150 mWinto 32 ohms; Adjustable volume control with off positionPower:(2) AA cellsOperating Time:20 hours continuous without headphonesWeight:Instrument: 7 oz. ( kg); Complete Kit: lb ( kg) x x (152 x 83 x 32 mm)Operating conditions:-14 to 122 F (-10 to 50 C)ISO 2372 (10816) Standards provide guidance for evaluating vibration severity inmachines operating in the 10 to 200 Hz (600 to 12,000 RPM) frequency of these types of machines are small, direct-coupled, electric motors andpumps, production motors, medium motors, generators, steam and gas turbines,turbo-compressors, turbo-pumps and fans.

EXAMINER 1000 SPECIFICATIONS Vibration Sensor: Piezoelectric accelerometer 100 mV/g with magnetic base, probe and 5 foot cable to BNC Display: LCD 3.5 digit , measurement, hold, low battery indicator

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Transcription of Untitled-1 [intech2000.com]

1 EXAMINER 1000 SPECIFICATIONSV ibration Sensor:Piezoelectric accelerometer 100 mV/g with magnetic base,probe and 5 foot cable to BNCD isplay:LCD digit , measurement, hold, low battery indicatorMeasurementAcceleration g (RMS)Range:Velocity in/sec., mm/sec (RMS)Envelope ge (peak)Frequency Range:Overall 10 Hz - 10 kHzEnvelope kHz-10 kHzOutput:Sensor Excitation: 12 Vdc @ 2 mA (BNC)Audio Out: mm mini plug; 250 mW into 8 ohms, 150 mWinto 32 ohms; Adjustable volume control with off positionPower:(2) AA cellsOperating Time:20 hours continuous without headphonesWeight:Instrument: 7 oz. ( kg); Complete Kit: lb ( kg) x x (152 x 83 x 32 mm)Operating conditions:-14 to 122 F (-10 to 50 C)ISO 2372 (10816) Standards provide guidance for evaluating vibration severity inmachines operating in the 10 to 200 Hz (600 to 12,000 RPM) frequency of these types of machines are small, direct-coupled, electric motors andpumps, production motors, medium motors, generators, steam and gas turbines,turbo-compressors, turbo-pumps and fans.

2 Some of these machines can be coupledrigidly or flexibly, or connected through gears. The axis of the rotating shaft may behorizontal, vertical or inclined at any angle. Use the chart below combined withadditional factors described in this manual to judge the overall vibration severity ofyour SEVERITY PER ISO 10816 Vibration Velocity VrmsMachineClass IClass IIClass IIIC lass IVsmallmediumlarge rigidlarge softin/s in the Monarch Instrument 2002 all rights reserved1071-4400-113 OPERATING THE EXAMINER 1000 Overview ..1 Controls and ..1 Rear Panel, Batteries and Connections ..2 Parts of the System ..3 Overview of Data Collection THE EXAMINER 1000 What is Predictive Maintenance? ..4 Benefits of Predictive Maintenance ..4 Why Measure Vibration? ..5 Selecting Machinery & Measurement Types ..7 Getting Started in your a Data Collection are you Measuring?

3 10 Measurement Techniques ..11 Evaluating overall Vibration Measurements ..12 Evaluating Acceleration Envelope ..14 TABLE OF CONTENTSTABLE OF CONTENTSOPERATING THE EXAMINER 1000 OverviewThe EXAMINER 1000 is designed in conjunction with vibration limits establishedin ISO Standards 2372(10816)/3945 to help you detect signs of malfunction or changesin rotating machinery during operation. This is accomplished with overall vibration(ISO VIB) and envelope measurements. Problems with bearings occur when thereis a microscopic crack or flaw or when there is a breakdown in lubrication whichleads to metal-to-metal interaction. The EXAMINER 1000 is designed to detectflaws or a lack of lubrication in bearings and gears at an early stage by measuringthe high-frequency impacts through acceleration envelope measurements are made by pressing the accelerometer sensor againstdesignated Measurement Points on your equipment with either the stringer probe orwith the magnetic and FunctionsON/SELECT Button - Press this button to turn power on.

4 Power automaticallyturns off after ten minutes of non-use. After turning the EXAMINER on , pressthe ON/SELECT button again to select the measurement type. Pressing and holdingthe ON/SELECT button while collecting data will HOLD the display value, indicatedby the word HOLD in the display. To release from HOLD mode, press the ON/SELECT button The digital display shows the numerical value of the measurement. Anarrow indicates the measurement type selected. The units of vibration areautomatically displayed as the type of measurement is selected. The user may workin either metric or imperial units in the V-velocity ofMeasurementValue of MeasurementUnits BatteryIndicatorType of MeasurementIndicatorHold ReadingIndicatorMONARCH INSTRUMENTS ervice Policy, Warranty, Disclaimer and Limit of RemediesExcept for the limited warranty described below, there are no warranties, expressed orimplied, including but not limited to, the implied warranties of merchantability andfitness for a particular purpose: all such warranties are expressly and 1000 is guaranteed free from defects in material and components, transducers, and cable assemblies are guaranteed for a periodof (90) days.

5 Electronic components are guaranteed for a period of (12) months. Thewarranty period begins on the date the products are shipped from the MonarchInstrument factory or an Authorized warranty does not extend to units that have been misused, altered, or repairedwithout manufacturer s authorization. Defects or failures experienced during the warrantyperiod will be corrected at no charge at the manufacturer s facility. If, upon examination,it is found that the defect is not within the scope of this warranty, an estimate of repaircharges and a request for authorization to proceed with the repair will be submitted,along with a statement of the reasons the repairs are not considered to be covered by warranty does not extend to system components such as transducers, headphonesand cable assemblies manufactured by others. Warranty for these components will betheir manufacturer s s liability under this warranty is limited to repair or replacement of anydefective instrument at the discretion of the manufacturer.

6 In the event that any of theabove limitations are held unenforceable, our liability to you shall not exceed thepurchase price paid for the product, regardless of the claim. Because of the diverseways that the product can be used, you are advised to test the product for suitability ofuse for your purposes prior to relying on INSTRUMENT15 Columbia DriveAmherst, NH 03031 USAP hone: 603-883-3390 Fax: : two AA alkaline PANEL CONNECTIONS12341234 AUDIO OUTSENSOR IN1234512345123451234512345 CONNECTIONSQUICK REFERENCEINSTRUCTIONPANELPRODUCT SERIALNUMBERAUDIO OUT1/8 ( mm)stereo mini plugSENSOR INPUTBNC Connectoroutput 12 vdc @ 2 mAVOLUMECONTROLTOP VIEWE X A M I N E R1 0 0 0 VIBRATION METERELECTRONIC STETHOSCOPEREFER TO OPERATORS MANUALFOR INSTRUCTIONSCONNECTIONSSENSOR IN AUDIO OUTM easurement TypesUnitsVvelocitymm/s in/sAaccelerationgEenvelopegeMonarch Instrument15 Columbia DriveAmherst, NH 03031 USAGLOSSARY (for vibration purposes)

7 PiezoelectricA material in which electrical properties change when subjected Measurements Variables such as temperature, pressure, speed andflow used to assess internal conditions of perpendicular to the shaft measure of the deviation between successive measurements madeunder the same Vibration x .707. ( in/s or mm/s)Rolling Element Bearing A bearing consisting of balls or rollers operating betweenfixed and rotating sequence of measurements arranged for convenienceduring to describe a transducer s electrical output for a unit variationof the mechanical quantity per unit areaSynchronousFrequency components that are an integer multiple ofrunning system consisting of a sensor and signal conditioner to convert aphysical quantity into an output for display, monitoringand Path The path from source (excitation) to plot of a variable over time used as an indicator of vector quantity of the time rate change of ConversionsD = x 103 x (V/F)D = x 106 x (A/F2)V = x 10-6 x D x FV = x 103 x (A/f)A = x 10-9 x D x F2A = x 10-3 x V x Fwhere.

8 D = Displacement (mils peak-to-peak)V = Velocity (in/s zero-to-peak)A = Acceleration (in/s2 zero-to-peak)F = Frequency (cpm)Overview of Data Collection Procedure1. Press the ON/SELECT Press the ON/SELECT button again to select the desired measurement the accelerometer sensor on the machinery Measurement Point (useproper probe technique as discussed on the following pages).3. Wait for the reading to stabilize, then press and hold the ON/SELECT button to HOLD the measurement. Indicated by HOLD in the Adjust headphones volume level and listen for any distinct patterns or Record the measurement value in your Machinery Data To release the HOLD function, press ON/SELECT Repeat the above steps for each Measurement of the SystemEXAMINER 1000 METERACCELEROMETERWITH CABLEHEAD PHONESMAGNETIC BASESTINGER PROBEHOLSTERON-TIME SOFTWARE ANDOWNERS MANUAL (optional)GLOSSARY (for vibration purposes)AccelerationA scalar quantity that specifies time rate of change of in either g s or m/sec2 where 1 g = in/sec2 Enveloping A high-frequency, filtered data collection methodexpressed in A transducer which converts acceleration motion in to anelectrical magnitude of vibratory motion.

9 Can be measured as peak-to-peak, zero-to-peak, or direction parallel to the axis of values taken when a machine is known to be good. Thestandard which all additional readings will be compared of frequency measurement-cycles per scalar quantity specifying the change of position of a bodymeasured from the resting Force A force that varies with applied to a mass producing a deflection (static force) ormotion (dynamic force).FrequencyThe repetition rate of a periodic event, expressed in cycles persecond (Hz), CPM, RPM, or multiples of running speed (orders).g sUnits of acceleration referenced against the force of gravity.(1g= ; 1g= m/sec/sec)Gear Mesh Frequency A frequency generated by a gear. Defined as thenumber of gear teeth on a gear times its shaft-rotating (Hz)A unit of frequency measurement, cycles per FilterA filter that allows only those components above a selected frequencyto time-based process of converting acceleration and velocity tovelocity or , ipsAbbreviations for inches per second, a measure of measure of body resistance to acceleration.

10 Proportional to,but not equal to, weight (mass = weight/gravity).Measurement Point A location on a machine or component where all subsequentmeasurements should be made for accurate Impedance Ratio of applied force to resulting velocity duringsimple harmonic amplitude of vibration within a specified frequency ValueThe absolute value zero to the maximum excursion on a dynamicwaveform. Also true peak and Monitoring Measurements recorded at intervals of Is Predictive Maintenance?Predictive Maintenance can be defined as collecting information from machines asthey operate to aid in making decisions about their health, repair and possibleimprovements in order to reach maximum runability, before any unplanned break-down. Machinery maintenance has evolved because of the demands to becomemore profitable through reduced maintenance costs.


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