Rion VM-54 Instruction Manual
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Rion VM-54 Instruction Manual

3-axis vibration meter
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INSTRUCTION MANUAL
3-Axis Vibration Meter
VM-54
3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japan
http://www.rion.co.jp/english/

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  • Page 1 INSTRUCTION MANUAL 3-Axis Vibration Meter VM-54 3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japan http://www.rion.co.jp/english/...
  • Page 3 Organization of this manual This manual describes the features and operation of the 3-Axis Vibration Meter VM-54. The manual contains the following sections. Outline Gives basic information on the confi guration and features of the unit, and contains a block diagram.
  • Page 4 Reference Information Provides additional information that is helpful for using the unit. Specifi cations Lists the technical specifi cations of the unit. * All company names and product names mentioned in this manual are trademarks or registered trademarks of their respective owners. The product described in this manual is in conformity with the following standards;...

  • Page 5: For Safety

    FOR SAFETY In this manual, important safety instructions are specially marked as shown below. To prevent the risk of death or injury to persons and severe damage to the unit or peripheral equipment, make sure that all instructions are fully understood and observed.

  • Page 7: Precautions

    Precautions Operate the unit only as described in this manual. Take care not to drop the unit, and protect it from shocks and vibra- tions. The permissible ambient temperature and humidity range for operation of the unit is -10 to +50ºC, 90% RH or below. Do not use or store the unit in locations that may be subject to extreme temperature or humidity, to splashes of water, high levels of dust, or to direct sunlight.

  • Page 8: Table Of Contents

    Contents FOR SAFETY ................iii Precautions ..................v Outline ....................1 Controls and Functions ..............3 Front panel ................3 Input/output section .............3 Display section ..............4 Control section ..............4 Right side view .................8 Bottom view ................9 Preparations ................. 11 Power supply ................11 Accelerometer connection ............14 Connection to external device (level recorder, DAT etc.) ..
  • Page 9 Default Settings ................37 Option Program Installation/Uninstallation .........38 Installing the option program ..........39 Program installation failure ..........41 Uninstalling the option program ..........42 Output Connectors ...............43 AC Output ................43 Reference Information ..............44 About the external power switching jumper pins ....44 Input connector ...............46 Frequency characteristics ............47 Specifi cations ................48...
  • Page 10 viii...

  • Page 11: Outline

    Outline The VM-54 is a vibration meter capable of measuring acceleration in three axes X, Y, Z. The unit can be used with the 3-axis accelerometer PV-83C/PV-83CW, and various other sensors such as piezoelectric accel- erometers and accelerometers with built-in preamplifier can also be con- nected via a 3ch preamplifier VP-80.
  • Page 12 CONV. AMP4 AMP3 AMP1 AMP2 Analog select MAIN P I/O MAIN LCD OVER LCD I/F SUB LCD LCD I/F Printer I/F Card I/F KEY I/F Power supply AC adapter DC/DC (Option) Conv. 4 batteries 3-Axis Vibration Meter VM-54 Block Diagram...

  • Page 13: Controls And Functions

    Controls and Functions Front panel Input Output Input/output section RION Meas. Time Store Mode VM-54 3-AXIS VIBRATION METER Display section Output Sub Display Level Range Display Light Menu X/Y/Z Mode Control section Max Hold Sub Display Install Reset Power Input/output section...

  • Page 14: Display Section

    Controls and Functions Display section Meas.Time Store Mode VM-54 3-AXIS VIBRATION METER Output Sub Display Main display Sub display Main display Shows the instantaneous value, maximum hold value, and setting infor- mation. Sub display Shows the bar graph screen, 3-axis measurement screen and other mea- surement screens.
  • Page 15 Pressing the key changes the menu screen 1/2 to 2/2. Pressing the key again closes the menu display. When an option program is installed, the menu has three pages in VM-54 mode. The menu can also be closed by pressing any other key except the Light key, Power key, and , , , keys.
  • Page 16 This key serves for level matching between the outputs of the unit and peripheral equipment. If you press the Cal key immediately after power-on, while the initial- ization screen is still shown, the software version of the VM-54 will be displayed. Power key Serves to turn the unit on and off.
  • Page 17 The four unnamed keys (indicated by a * symbol in the illustration be- low) have no function in the normal operation mode of the VM-54. If you press one of these keys, the indication "Invalid operation!" appears on the sub display.

  • Page 18: Right Side View

    VM-54. The connector provides a printer output signal only when one of the option programs is installed. Card slot One of the option program cards can be inserted in this slot. In the VM-54, this slot does not function as a regular memory card slot for saving data.

  • Page 19: Bottom View

    Normally, the supplied jumper should be set on the side marked "A" ( If the jumper is set to the side marked "B" ( ), the VM-54 comes on even without pressing the Power key when the external power supply becomes active.
  • Page 20 Controls and Functions Battery compartment Holds four IEC R14 (size "C") batteries. Name plate Shows the serial number of the unit as well as the manufacturing date and other information.

  • Page 21: Preparations

    Preparations Power supply The VM-54 can be powered from four IEC R14 (size "C") batteries (alkaline or manganese), or from the AC adapter NC-98C. It is also possible to use rechargeable IEC R14 (size "C") batteries, but the VM-54 does not have a facility for recharging such batteries.
  • Page 22 Preparations Battery life will differ, depending on the battery type, usage conditions, and other factors. Approximate battery life (at 20ºC, with accelerometer PV-83C connected, backlight OFF) Battery life with continuous operation Alkaline batteries LR14 approx. 22 hours Manganese batteries (black) R14PU approx. 8.5 hours When the backlight is used, current consumption will increase by a factor of about 2.
  • Page 23 Preparations AC adapter (option) Connect the AC adapter as shown in the illustration below. I / O External power supply jack AC adapter To AC outlet NC-98C (optional) Note The optional AC adapter NC-98C is for 100 to 240 V Important Do not use any other kind of AC adapter except the NC-98C Otherwise damage may occur.

  • Page 24: Accelerometer Connection

    Preparations Accelerometer connection When using 3-axis accelerometer PV-83C/PV-83CW 3-axis accelerometer PV-83C/PV-83CW (optional) Connector Ring Plug Connection cable EC-54 (supplied with PV-83C/PV-83CW) Optional cable can be connected 5 m: EC-04A 10 m: EC-04B 30 m: EC-04C 50 m: EC-04D 100 m:EC-04E The 30 m, 50 m, and 100 m cable Input connector is supplied on a reel...
  • Page 25 Preparations When using a piezoelectric accelerometer Piezoelectric accelerometer (optional) PV-85, PV-90B PREAMPLIFIER MODEL VP-80 SER. No. RION CO.,LTD. Accelerometer cable VP-51A ×0.1 ×1 CCLD Charge 3ch preamplifier VP-80 (optional) Ring For information on using the 3ch preamplifier, see the documentation supplied with the preamplifier.

  • Page 26: Connection To External Device (Level Recorder, Dat Etc.)

    The output connectors of the unit (X or Y or Z) can be connected to the input of an external device using the BNC-BNC cable NC-39A (optional). The connectors carry an AC signal. Input connector BNC-BNC cable External device NC-39A (optional) (level recorder, DAT etc.) Output connectors Output VM-54 3-AXIS VIBRATION METER...

  • Page 27: Setting The Date And Time

    Preparations Setting the date and time The VM-54 incorporates a clock. Set the date and time as follows. 1. Press the Power key to turn the unit on. 2. Press the Menu key to bring up the menu screen 2/2 on the sub dis- play.

  • Page 28: Backup Battery

    The VM-54 incorporates a backup battery (rechargeable) for clock data backup. The battery is recharged automatically while power to the VM-54 is on. (not recharged while the power is off). It takes about 12 hours to reach a full charge.

  • Page 29: Measurement In Dark Locations

    Preparations Measurement in dark locations Pressing the Light key turns the display backlight on, making it easier to read in dark locations. Pressing the key once more turns the light off. When the backlight is used, current consumption will increase by a factor of about 2.

  • Page 30: Adjusting The Sub Display Contrast

    Preparations Adjusting the sub display contrast You can adjust the contrast of the sub display as follows. 1. Press the Menu key. The menu screen appears on the sub display. Menu key Level Range Display Light Menu Mode Power key Max Hold Install Sub Display...

  • Page 31: Calibration

    Preparations Calibration When using external equipment to record measurement data, level calibration should be performed as follows. 1. Press the Power key to turn the unit on. 2. Press the Cal key. Level Range Display Light Menu X/Y/Z Mode Cal key Power key Max Hold Sub Display...
  • Page 32 Preparations 3. Press the Cal key again to turn calibration mode off. Note With the range settings 0.03, 0.3, 3, 30, 300, and 3000, the range full scale value is 0.0316, 0.3162, 3.162, 31.62, 316.2, and 3162 respectively.

  • Page 33: Reading The Displays

    Reading the Displays The VM-54 has two LCD panels. The left-side panel is the main display and the right-side panel is the sub display. The main display shows the measurement value and settings for the selected vibration axis (X, Y, Z).
  • Page 34 Reading the Displays Bar graph A bar graph corresponding to the measurement value is shown here. The display update frequency is 100 ms. Overload indication ( shown in reverse) Over Appears when overload in the instantaneous value was detected. Overload indication ([Over] shown in normal mode) Appears when overload is included in the maximum hold value.

  • Page 35: Sub Display

    Reading the Displays Sub Display The sub display employs a dot-matrix type LCD which allows various display functions. The Sub Display key serves to switch between these functions. The screen also changes according to the operation mode. Level Range Display Light Menu X/Y/Z...
  • Page 36 Reading the Displays 3-axis bar graph screen This screen shows bar graphs for all three axes and the instantaneous values simultaneously. Sub display 03/03 10:20:30 Level range 0.1233 upper limit Signal overload 0.1243 indication Measurement Un Ov Signal underload values 0.2355 indication Acc RMS...

  • Page 37: Calibration Mode

    Reading the Displays Calibration mode In calibration mode, the display is automatically switched to 3-axis bar graph mode. Sub display 03/03 10:20:30 1000 1000.0 1000 1000.0 1000 1000.0 Acc RMS m/s 2 Cal indication Calibration screen example...

  • Page 38: Menu Screens

    Reading the Displays Menu screens The VM-54 has two menu pages which are shown on the sub display and are numbered 1/2 and 2/2. The Menu key lets you switch between these pages. To select an item on a menu screen, use the keys.
  • Page 39 Reading the Displays Sensitivity when "Type" is set to "CCLD" Unit: mV/(m/s^2) Setting range: 0.0100 to 0.0999 0.0001 step 0.100 to 0.999 0.001 step 1.00 to 9.99 0.01 step 10.0 to 99.9 0.1 step When the PV-83C is used, the Sensitivity item is not shown. Sensitivity is set automatically to match the PV-83C.
  • Page 40 Reading the Displays Menu screen 2/2 To select an item on a menu screen, use the keys to move the cur- sor. To change the setting of an item, use the keys. The menu screen 2/2 contains the LCD Contrast setting and the Time setting (date and time) items.

  • Page 41: Power-On/Off

    Power key Max Hold Install Sub Display Reset Power VIBRATION METER VM-54 RION RION CO.,LTD. Sub display screen during power-on (initialization screen) Note By pressing the Cal key while the above initializa- tion screen is shown, you can bring up the software version display.

  • Page 42: Power-Off

    Power-On/Off Power-off Hold down the Power key for about 1 to 2 seconds until the sub display shows the power-off screen. When the screen appears, release the Power key. See You Sub display screen during power-off Note After turning the unit off, wait at least 5 seconds before turning power back on again.

  • Page 43: Measurement

    Measurement The VM-54 can measure vibration acceleration in three directions. You can select either instantaneous value measurement or maximum hold measure- ment mode. Instantaneous value measurement (acceleration rms value measurement) The procedure for instantaneous value measurement is as follows. 1. Press the Power key to turn the unit on.
  • Page 44 Measurement 3. Select the level range with the Level Range keys. If [Over] is shown frequently, change the level range setting. The measurement value indicated on the display is the acceleration rms value. The reading is updated every second. The bar graph is updated in 0.1 second intervals. Main display Over Instantaneous value (acceleration rms value)

  • Page 45: Maximum Hold

    Measurement Maximum hold The maximum of the measured acceleration rms value can be retained by the unit without time limitation. 1. Press the Power key to turn the unit on. (For information about the display, see the section "Power-On/Off" on page 31.) The measurement settings that were selected when the unit was last turned off will be active again.
  • Page 46 Measurement 5. Press the Max Hold Reset key to reset the memorized maximum hold data. Maximum hold measurement automatically starts at this point. The value shown on the measurement display is the maximum of the acceleration rms value. The hold condition does not apply to the bar graph display.

  • Page 47: Default Settings

    Default Settings The ex-factory default settings of the VM-54 are as shown below. Main display: Instantaneous value measurement screen Sub display: 3-axis bar graph Level range: 10 m/s Menu 1/2 Sensor Type: PV-83C Default sensitivity settings when Sensor Type is Charge or CCLD: X = 5.00 pC/(m/s^2)

  • Page 48: Option Program Installation/Uninstallation

    Option Program Installation/Uninstallation The Marine Vibration Card VX-54WS is available as an option program for the VM-54. The program data on the card are protected, allowing installation only on one VM-54 at a time. Important If the power is interrupted during installation or uninstallation, the unit may malfunction.

  • Page 49: Installing The Option Program

    Important Make sure that power is turned off before insert- ing the card. The procedure for installing an option program into the VM-54 is as fol- lows. 1. Open the lid of the card slot and insert the program card.
  • Page 50 VM-54. To install the option program on another VM-54, you must fi rst uninstall it from the VM-54 where it was installed initially. When the installation is complete, the measurement screen appears and the option program can be used.

  • Page 51: Program Installation Failure

    Press any key except the Power key to abort the installation. If you insert a program card whose program data have not yet been installed into a VM-54 where the option program is already installed, a screen such as shown below will appear, indicating that the program cannot be installed.

  • Page 52: Uninstalling The Option Program

    If you want to cancel the uninstallation, press the Menu key instead of the Mode key at the uninstallation confi rmation screen. The normal measurement screen will appear. To remove the program card, turn power to the VM-54 off and then press the lever in the card slot.

  • Page 53: Output Connectors

    Output Connectors AC Output These connectors provide an AC output signal. Output voltage: 1 Vrms±20 mVrms (at range full-scale) Output impedance: approx. 100 Ω Load impedance: 10 kΩ or higher Output connector type: BNC Suitable cable: BNC-BNC cable NC-39A (1.5 m), optional The output in calibration mode is 31.5 Hz, 1.0 Vrms.

  • Page 54: Reference Information

    Reference Information About the external power switching jumper pins The VM-54 is turned on by holding down the Power key for at least one sec- ond, but the on/off status can also be controlled by an external power supply without using the Power key.
  • Page 55 Reference Information 4. When you connect the AC adapter (option) and thereby supply power to the VM-54, the unit will automatically be turned on. This also applies when the unit is powered from batteries. I / O AC outlet External power supply jack...

  • Page 56: Input Connector

    Reference Information Input connector The input connector is a Tajimi Electronics connector 1108-23A10-7F wired as shown below. +12 V Ground Z channel signal input -12 V X channel signal input Y channel signal input Power supply output from unit (AC Top view adapter or batteries), or +7 V (when PV-83C/PV-83CW is selected)

  • Page 57: Frequency Characteristics

    Reference Information Frequency characteristics Overall frequency response with PV-83C connected (typical) 1000 Frequency (Hz) Stand-alone frequency response (typical electrical characteristics of VM-54 with Charge or CCLD setting) 10 k Frequency (Hz)

  • Page 58: Specifi Cations

    Specifi cations Input section 7-pin connector, type 1108 For 3-axis accelerometer PV-83C/PV-83CW or 3ch preamplifi er Measurement mode Acceleration: m/s Sensitivity settings 10.0 to 99.9 pC/(m/s 1.00 to 9.99 pC/(m/s 0.100 to 0.999 pC/(m/s 0.0100 to 0.0999 pC/(m/s When the sensor type is CCLD, the unit is mV/(m/s Measurement range With piezoelectric accelerometer Sensitivity setting 10.0 to 99.9 pC/(m/s...
  • Page 59 Specifi cations Displays Segment type LCD × 1 and 128 × 64 dot matrix type × 1 With backlight Display modes ∙ Segment type Single-axis measurement value and bar graph (100 ms update cycle) always shown Setting information display ∙ Dot matrix type 3-axis instantaneous value and bar graph display Menu display Data store function...
  • Page 60 3-axis accelerometer PV-83C PV-83CW Accelerometer PV-57A Accelerometer (tri-axial) PV-97C Accelerometer (single axis) PV-90B Accelerometer (single axis) PV-90I VM-54 PV-83C cable EC-54 Extension cables EC-04 series Battery pack BP-21 Marine Vibration Card VX-54WS FFT Card VX-54FT Carl Cable (for PV-57A) PV-51K...
  • Page 61 Output RION Meas. Time Store Mode VM-54 3-AXIS VIBRATION METER Output Sub Display Level Range Display Light Menu X/Y/Z Mode Max Hold Install Sub Display Reset Power Top view Side view Unit: mm Dimensional drawing of 3-Axis Vibration Meter VM-54...
  • Page 62 No. 38746 15-09...

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