Lutron Electronics vt-8204 Operation Manual
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Lutron Electronics vt-8204 Operation Manual

Vibration tachometer
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3 in 1
VIBRATION
TACHOMETER
Model : VT-8204
OPERATION MANUAL
Your
purchase
VIBRATION TACHOMETER
marks a step forward for
you
into
the
precision measurement.
Although this VIBRATION
T A C H O M E T E R
complex
and
instrument,
its
structure will allow many
years of use if proper
operating techniques are
developed.
Please
the following instructions
carefully and always keep
this manual within easy
reach.
of
this
field
of
i s
a
delicate
durable
read

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Summary of Contents for Lutron Electronics vt-8204

  • Page 1 3 in 1 VIBRATION TACHOMETER Model : VT-8204 Your purchase this VIBRATION TACHOMETER marks a step forward for into field precision measurement. Although this VIBRATION T A C H O M E T E R complex delicate instrument, durable structure will allow many...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1 FEATURES..............2 SPECIFICATIONS............3 FRONT PANEL DESCRIPTION........3-1 Display..............7 3-2 Power button ( vibration )......... 7 3-3 Hold/ESC/Zero button..........7 3-4 Eenter/REC button............7 3-5 Function/Send button..........7 3-6 Unit/Logger button........... 7 3-7 Operation button ( tachometer )........7 3-8 Surface speed wheel ( contact tach.

  • Page 3: Features

    1. FEATURES Vibration function : * Applications for industrial vibration monitoring : All industrial machinery vibrates. The level of vibration is a useful guide to machine condition. Poor balance, misalignment & looseness of the structure will cause the vibration level increase, it is a sure sign that the maintenance is needed.
  • Page 4 Tachometer ( photo, contact ) function : * Laser light detecting source, long measuring range up to 1.5 meters, it is useful in the RPM measurement application where the machine would be a risk to the operator or close access is difficult or not possible. * The best Tachometer in the world.

  • Page 5: Specifications

    2. SPECIFICATIONS 2-1 Vibration function Velocity 0.5 to 199.9 mm/s range 0.05 to 19.99 cm/s 0.02 to 7.87 in/s Velocity peak range : Remark 1.0 to 199.9 mm/s Acceleration 0.5 to 199.9 m/s^2 range 0.05 to 20.39 g 2 to 656 ft/s^2 Acceleration peak range : Remark 1.0 to 199.9 m/s^2...
  • Page 6 Memory Maximum & Minimum value. * Memory function are only available for RMS ( Acc., Vel. ) and Displacement (p-p). Sampling time Approx. 1 second. Data logger Data logger function with flexible sampling time selection, can save max. 1000-point data into the memory circuit. Sampling Time Manual Push the data logger button of Data Logger once will save the data one...
  • Page 7 Sampling Time Photo Tachometer - 1 sec. ( 60 RPM ). ≧ Contact Tachometer - 1 sec. ( 6 RPM ). ≧ Photo 50 - 1,500 mm typically. Tachometer * Spec. of detecting distance are that under detecting the size of reflecting tape is 10 mm square distance &...
  • Page 8 Power Vibration Approx. 18 mA consumption Contact Tach. Approx. 20 mA Photo Tach. Approx. 31 mA Weight Meter 397 g/0.87 LB Probe with 110 g/0.24 LB magnetic base Dimension Meter : 46.8 x 75.5 x 188 mm ( 1.8 x 3.0 x 7.4 inch ). Vibration sensor probe: Round 18 mm Dia.

  • Page 9: Front Panel Description

    3. FRONT PANEL DESCRIPTION Fig. 1...

  • Page 10: Display

    3-1 Display 3-2 Power button ( vibration ) 3-3 Hold/ESC/Zero button 3-4 Eenter/REC button 3-5 Function/Send button 3-6 Unit/Logger button 3-7 Operation button ( tachometer ) 3-8 Surface speed wheel ( contact tach. ) 3-9 RPM adapter ( contact tach. ) 3-10 Protection cover ( contact tach.

  • Page 11: Vibration Measuring Procedure

    4. VIBRATION MEASURING PROCEDURE 4-1 Basic operation procedures 1)Plug in the " BNC plug " ( 3-12, Fig. 1 ) to the " BNC socket " ( 3-15, Fig. 1 ). 2) Power on the meter by pressing the " Power button " ( 3-2, Fig.
  • Page 12 5)If the surface material of measuring article is the ferrous material, connect " Vibration sensor " ( 3-13, Fig. 1 ) with the " Magnetic base " ( 3-14 ), refer Fig. 3. Put the whole unit ( Vibration sensor & Magnetic base ) to the surface of measuring article, refer Fig.
  • Page 13 4-2 Unit selection ( Imperial/Metric ) During the measurement, press the " Unit button " ( 3-6, Fig. 1 ) at least 2 second continuously, the display unit can be changed from the Imperial unit to Metric unit or be changed from Metric unit to Imperial unit.
  • Page 14 1)Function 1 ( RMS for ACC, VEL., p-p for DISP. ) : Function 1 is the basic operation function, for general operation select the function 1 typically. * If Acceleration function measure the " RMS " value, the display show " ACC " and " RMS " symbol. * If Velocity function measure the "...
  • Page 15 * The Displacement function measure the max. " p-p " ( peak to peak ) value with hold, the display show " DISP ( p-p ) " and " MAX HOLD " symbol. The definition of " peak to peak ", please refer Fig. 6 * Max.

  • Page 16: Data Hold

    4-4 Data hold During the measurement, push the " Hold button " ( 3-3, Fig. 1 ) will hold the measured value & the LCD will show " HOLD " symbol. Push the " Hold button " again to release the data hold function.
  • Page 17 c) To exit the memory record function, just press the " REC button " for at least 2 seconds. The display will revert to the current reading. 4-6 Zero adjustment procedure Due to drift of environment temperature value, battery power change or, meter used for a long time or other reasons.
  • Page 18 b)Auto Data Logger ( Sampling time can select to 1, 2, 10, 30, 60, 600, 1800, 3600 seconds ) Press the " Logger Button " ( 3-6, Fig. 1 ) once to start the Data Logger function. The " " symbol is flashed per the sampling time and the data will be saved into the memory circuit.
  • Page 19 Remark : If intend to change the data logger sampling time, please refer section 4-10/point 4, page 19. If intend to know the space of balance data numbers into the memory IC, please refer section 4-10/point 5, page 19. If intend to clear the saving data from the memory please refer section 4-10/point 6, page 20.
  • Page 20 4-9 Auto power off The meter is default to auto power off. If the user intend to disable the " Auto Power off " function, refer the section 4-10/point 3, page 18. Note : During execute the record function, the auto power function will disable too.
  • Page 21 b. Press the " Function button " ( 3-5, Fig. 1) or " Unit button " ( 3-6, Fig. 1) to select " 1 " or " 0 ". * If the display value show " 0 ", it will disable the Auto Power Off function.
  • Page 22 Clear the existing saving data from the memory a. Use the " Hold button " to select the main function to " CLr ". b. Press the " Function button " ( 3-5, Fig. 1) or " Unit button " ( 3-6, Fig. 1) to select " 1 " or " 0 ". * If the display value show "...
  • Page 23 a. Contact RPM measurement, display shows " RPM " symbol. b. Surface speed ( m/min. ) measurement, display shows " m/min " symbol. c. Surface speed ( ft/min. ) measurement, display shows " ft/min " symbol. d. Photo RPM measurement, display shows " RPM "...
  • Page 24 Measuring consideration : If the measured RPM values is very low ( for example less than 50 RPM ), recommend to attach more " Reflecting Marks " average to the object. It will get the real RPM with high resolution, precisely &...
  • Page 25 2)When finish the measuring procedures ( after release the operation button ), the memorized values can be displayed on the LCD display whenever : a. First push the " REC button " ( 3-4, Fig. 1 ) - To display the last value ( " LA " and " the last value " will be displayed alternately ).
  • Page 26 6. IR ( Infrared ) TEMPERATURE MEASURING PROCEDURE 1)Power off the meter. 2)Prepare the IR Temp. probe ( optional, IR-962 ), connect the cable plug of IR Temp. probe into the " IR probe input socket " ( 3-18, Fig. 1 ). 3)Power on the meter.
  • Page 27 The 16 digits data stream will be displayed in the following format : D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Each digit indicates the following status : Start Word = 02 D12, D11 Annunciator for Display mm/s = 93 ft/s^2 = 97...

  • Page 28: Battery Replacement

    8. BATTERY REPLACEMENT 1)When the left corner of LCD display show " ", it is necessary to replace the battery. However, in-spec measurement may still be made for several hours after low battery indicator appears before the instrument become inaccurate. 2)Open the "...
  • Page 29 IR Temp. probe * Infrared temperature probe IR-962 10. CLASSIFICATION RANGES For the valuation of machines and equipment in the ISO 2372 and VDI 2056, four different kinds of machine groups with four classification ranges and their limits for vibration severity ( mm/s ) are determined. The classifications for each machine group are specified as follows : Small machines, especially production electrical...

  • Page 30: 11 Sensitivity Relative Table According

    Large machines on heavy foundations ( Group G ) Good 0 to 1.80 mm/s Acceptable 1.81 to 4.50 mm/s Still permissible 4.51 to 11.2 mm/s Dangerous > 11.2 mm/s Largest machines and turbo machines with a special foundations ( Group T ). Good 0 to 2.80 mm/s Acceptable...

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