manual vibration meter pce-vt2700
Contents
1. Instruments PCE Americas Inc PCE Instruments UK Ltd 711 Commerce Way Units 12 13 Suite 8 Southpoint Business Park Jupiter Ensign way FL 33458 Hampshire Southampton USA United Kingdom S031 4RF From outside US 1 From outside UK 44 Tel 561 320 9162 Tel 0 2380 98703 0 Fax 561 320 9176 Fax 0 2380 98703 9 info pce americas com info pce instruments com www pce instruments com english www pce instruments com Manual Vibration Meter PCE VT2700 Version 2 0 Date of creation 17 03 2015 Date of last change 22 04 2015 Manual PCE Instruments Contents Ittre 3 2 ALOU NOl Sais re ce cte conc ctenectnenectea Ee ai 3 a gt 212 et e 9 eee nn ne el ne eee anemone sane een 3 A System GOSCHOUION sse a a aes auecsduueeasveusueuss 4 5 Measuring functions parameters cccceeseeeeseeeeeeeeeneeeeseeeesesoeneeoeneeeeneeoeneeeenees 5 5 1 ACCS aU EE 5 5 2 WGIOGIY E 5 5 3 IS DIAC nn E 5 MUSIC UO UNS E 6 6 1 PS AS IPC MENi cacavinsctacacntcaasanndetcadscostaaeadnnctoxsantaassasasevedsesttaaiinareiarzastedacaintendanideuieaniauananteaneetnaaunas 6 6 2 Baltery e Ee ET 6 7 Further information on vibration measurement cceeeeeceeeeeeeeneeeseeneeneeeneeees 6 NSO EE 7 OC acacia eee teste cece cece ee eee ede eee ede EE ENEE ETENEE EEEN ESEESE EEEN 7 9 1 POE INSTUNEMS enee Eeer 7 9 2 Fe PA ler E 7 NO PCE Instruments Manual 1 Introduction Thank you for purchasing a vibration meter PCE VT2700 from PCE2. response this parameter is generally used for low speed machines The unit of measurement for this parameter is mm Manual PCE Instruments 6 Instructions 6 1 Measurement Connect the sensor you have chosen to the device Switch on the device by means of the Power key and place the sensor at the object to be measured For even surfaces the magnet included in the delivery content is very suitable By means of the function key FUNC you can select the measurement function which is either acceleration measurement m s velocity measurement mm s displacement measurement mm frequency measurement Hz F or revolutions measurement rom To make a selection press the FUNC Key several times until the desired measurement function is displayed By pressing the HOLD button you can hold the maximum value of your measurement MAX will appear in the upper area of the display You can deactivate this function by pressing HOLD again The METRIC IMPERIAL key is used to set the units For acceleration measurement the units m s and F s are available for velocity measurement you can select inch s or mm s and for displacement measurement the units mm and mil can be selected When you work with headphones you can control the volume 1 8 by pressing the VOL key several times until the desired value is indicated in the display If machines or bearings are operated under the same circumstances you can
3. Instruments This vibration meter is perfectly suitable for maintenance as it tests vibrating parts machines and equipment easily and quickly With the PCE VT2700 you can measure acceleration m s displacement mm frequency Hz F as well as velocity RPM This means that you can detect and trace imbalance easily and reliably and avoid bearing damage by localising the source of undesirable vibration By means of an integrated RS 232 interface you can transfer data directly from the meter to a PC In addition to the device the delivery includes two measuring tips a Sensor a magnetic plate a carrying case and this manual An ISO calibration certificate is optionally available 2 Safety notes Please read this manual carefully and completely before you use the device for the first time The device may only be used by qualified personnel and repaired by PCE Instruments personnel There is no warranty of damages or injuries caused by non observance of the manual The device may only be used in the approved temperature range The case should only be opened by qualified personnel of PCE Instruments The instrument should never be placed with the user interface facing an object e g keyboard side ona table You should not make any technical changes to the device The appliance should only be cleaned with a damp cloth use only pH neutral cleaner This manual is published by PCE Instruments without any guarantee We expressly p
4. hanical parts you can detect deteriorations before they cause problems This means that you are ina position to order replacement parts in time and maintenance work must only be carried out when required This is to avoid expensive and unnecessary stocks of replacement parts which brings financial advantages Unanticipated interruptions cause production downtime Defective machines and equipment are often repaired in a hurry so that production can be continued as soon as possible Regardless of how precisely the staff works it is not always possible under these circumstances to carry out repairs correctly This can in turn lead to machine and equipment downtime again A predictive maintenance schedule according to which important factors like vibration are measured on a regular basis does not only allow you to reduce interruptions in production but also to make maintenance work more effective This increases product quality and productivity The term trend is very important to know in connection with vibration measurement A trend indicates how a monitored parameter behaves over time If vibration measurements have been made and plotted over a certain period of time the resulting graph shows the progress or the deterioration of a certain machine Immediately after installation it is possible that the vibration level decreases slightly as the machine is run in no matter if the machine is new or was repaired This period is followed by the normal ope
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6. ncy Display 1 kHz 10 Hz 1 kHz 10 kHz 10 Hz 10 kHz 5 2 Velocity Velocity is the parameter most frequently used and is applied to vibration measurement in line with ISO 2372 BS 4675 and VDI 2056 ISO 10816 Velocity is measured in mm s inch s Machine vibration DIN ISO 10816 11 00 7 10 11 4 50 7 10 3 50 4 50 2 80 3 50 2 30 2 80 1 40 2 30 0 0 1 40 Description pumps gt 15 kW pumps gt 15 kW medium sized big machines machines 15 kW lt P lt 300 kW 300 kW lt P lt 50 MW multiblade rotor multiblade rotor with motors motors with direct drive separate drive 160 mm lt H lt 315 mm 315 mm lt H 6 30 lt H lt 12 40 12 40 lt H 1 Explanations Class 1 big machines P 300 kW 50 MW electrical machines with an axle height h of 2315 mm Class 2 medium sized machines P 15 kW 300 kW electrical machines with an axle height h of 160 315 MM Class 3 pumps with multiblade rotors and separate drive P gt 15 kW Class 4 pumps with multiblade rotors and und direct drive P gt 15 kW A vibration good B vibration ok C vibration not ok D vibration prohibited 10 1000 Hz n gt 800 1 1000 Hz n gt 120 Vibration velocity mm s RMS Vibration velocity measurements should be made in three axis directions X Y and Z axis vertical to the surface of the machine housing 5 3 Displacement Due to its good low frequency
7. oint to our general guarantee terms which can be found in our general terms of business If you have any questions please contact PCE Instruments 3 Specifications Measurement range acceleration 0 1 400 0 m s Peak velocity 0 1 400 0 mm s RMS displacement 0 001 4 000 mm P P revolutions D 100 000 rpm 0 1 m s 0 1 mm s 1 um 1 rpm Accuracy see EBS Frequency range acceleration 10 Hz 10 kHz velocity 10 Hz 1 KHz displacement 10 Hz 1 kHz Display 4 digit LC display value last measured is displayed Interface o RS 232 RS 232 ptenese 4 x 1 5 V AAA batteries battery life up to 4 5 hours at continuous operation Operating conditions 0 50 C lt 99 RH 124 x 62 x 30 mm Weight 240 g Manual 4 System description L I VIBRATION TESTER Sensor connection Display METRIC IMPERIAL key units HOLD key Volume key Earphone connection Connection for RS 232 cable FUNCTION key FILTER key 0 On off key 1 Battery compartment cover 2 i 2 3 4 5 6 7 8 9 1 1 12 Sensor PC E Instruments PCE Instruments Manual 5 Measuring functions parameters 5 1 Acceleration Acceleration is measured in m s F s Acceleration measurement is particularly useful for the localisation of high frequency vibration and is therefore suitable for the determination of faults in bearings and gearboxes By means of the FILTER key you can set the freque
8. rating time of the machine which is a longer period of time during which the vibration level does not change The next period will be one during which the vibration level will increase due to wear of machine components before the machine eventually stops working Such a trend enables the engineer to predict the approximate downtime to maximise the benefit of the machine to order replacement parts and at the same time to adapt maintenance work to the production schedule PCE Instruments Manual 8 Disposal For the disposal of batteries the 2006 66 EC directive of the European Parliament applies Due to the contained pollutants batteries must not be disposed of as household waste They must be given to collection points designed for that purpose In order to comply with the EU directive 2012 19 EU we take our devices back We either re use them or give them to a recycling company which disposes of the devices in line with law If you have any questions please contact PCE Instruments 9 Contact If you have any questions about our range of products or measuring instruments please contact PCE Instruments 9 1 PCE Instruments UK By post PCE Instruments UK Ltd Units 12 13 Southpoint Business Park Ensign Way Southampton Hampshire United Kingdom SO31 4RF By phone 02380 987 035 9 2 PCE Americas By post PCE Americas Inc 711 Commerce Way Suite 8 Jupiter 33458 FL USA By phone 561 320 9162 Ad www pce insiru
9. use this device to carry out reference measurements By analysing these data irregularities of the individual machines can be detected to recognise possible faults at an early stage Make sure that these measurements are always carried out at the same spots in order to achieve high accuracy 6 2 Battery replacement Switch off the device and remove the battery compartment cover Remove the batteries and insert some new ones 4 x 1 5 AAA batteries Close the battery compartment cover 7 Further information on vibration measurement Vibration measurement provides reliable information that allows conclusions regarding the mechanical condition of a machine or product Ideally a machine has very little or no vibration as this indicates that the motor as well as the peripheral devices such as gears fans compressors and other devices are sufficiently balanced and aligned and correctly installed In practice a high percentage of installations are far from ideal which is due to incorrect alignment and balancing and results in higher strain on load bearing parts like bearings This causes high strain on and wear of important parts and thus inefficiency heat generation and production downtime Of course this normally happens at the most inconvenient and economically most inappropriate time and causes expensive production losses Vibration increases as wear and deterioration of mechanical parts rises By regularly controlling the vibration of faultless mec
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