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Rion VM-54 Instruction Manual

Manual is about: 3-Axis Vibration Meter

Summary of VM-54

  • Page 1

    3-20-41 higashimotomachi, kokubunji, tokyo 185-8533, japan http://www.Rion.Co.Jp/english/ instruction manual 3-axis vibration meter vm-54.

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    I 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. Controls and functions briefl ...

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    Ii * all company names and product names mentioned in this manual are trademarks or registered trademarks of their respective owners. Reference information provides additional information that is helpful for using the unit. Specifi cations lists the technical specifi cations of the unit. The product...

  • Page 5: Caution

    Iii 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. Caution important d i s r eg a...

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    Iv.

  • Page 7: Precautions

    V 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 t...

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    Vi contents for safety ............................................................................... Iii precautions ......................................................................................V outline ........................................................................................

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    Vii default settings ............................................................................37 option program installation/uninstallation .................................38 installing the option program .................................................39 program installation failure .............

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    Viii.

  • Page 11: Outline

    1 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 ...

  • Page 12

    2 outline 3-axis vibration meter vm-54 block diagram att amp1 lpf amp3 amp2 lpf att amp4 amp4 amp4 a/d d/a conv. Att amp1 lpf amp3 amp2 lpf att att amp1 lpf amp3 amp2 lpf att a/d d/a conv. Input z x y dsp ram main lcd i/f main lcd sub lcd sub lcd i/f p i/o printer i/f key i/f rtc card i/f rom ram cp...

  • Page 13: Controls And Functions

    3 controls and functions front panel input/output section input connector the 3-axis accelerometer pv-83c/pv-83cw can be connected here, using connection cable ec-54 (optional). To connect a piezoelectric accelerometer or accelerometer with built-in preamplifi er, use the optional 3ch preamplifi er ...

  • Page 14: Display Section

    4 controls and functions display section 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. The sub display also shows menus. Control section note protective fi ...

  • Page 15

    5 controls and functions level range keys these keys control the level range for the x, y, z axis. The key switches the level range up, and the key switches the level range down. X/y/z key switches the vibration axis to be shown on the display. With each push of the key, the display cycles through t...

  • Page 16

    6 controls and functions cal (calibration) key 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. Powe...

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    7 controls and functions unnamed keys (indicated by * symbol) 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. These ...

  • Page 18: Right Side View

    8 controls and functions right side view external power supply jack the optional ac adapter nc-98c (for 100 to 240 v ac) can be connected here to power the unit from an external source. I/o connector this connector has no function in the normal operation mode of the vm-54. The connector provides a p...

  • Page 19: Bottom View

    9 controls and functions bottom view external power switching jumper pins normally, the supplied jumper should be set on the side marked "a" ( jp1 a b ). If the jumper is set to the side marked "b" ( jp1 a b ), the vm-54 comes on even without pressing the power key when the external power supply bec...

  • Page 20

    10 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

    11 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. Note when a...

  • Page 22: Important

    12 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 (bl...

  • Page 23: Ac Adapter (Option)

    13 preparations ac adapter (option) connect the ac adapter as shown in the illustration below. Note the optional ac adapter nc-98c is for 100 to 240 v ac. Important do not use any other kind of ac adapter except the nc-98c otherwise damage may occur. Power consumption approx. 5.5 va (with ac adapter...

  • Page 24: Accelerometer Connection

    14 preparations accelerometer connection when using 3-axis accelerometer pv-83c/pv-83cw output meas. Time store mode 3-axis accelerometer pv-83c/pv-83cw (optional) connector ring plug connection cable ec-54 (supplied with pv-83c/pv-83cw) input connector optional cable can be connected 5 m: ec-04a 10...

  • Page 25

    15 preparations when using a piezoelectric accelerometer input output meas.Time store mode 2 m: ec-04 5 m: ec-04a 10 m: ec-04b 30 m: ec-04c 50 m: ec-04d 100 m: ec-04e piezoelectric accelerometer (optional) pv-85, pv-90b accelerometer cable vp-51a 3ch preamplifier vp-80 (optional) for information on ...

  • Page 26

    16 preparations 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. Output x y z 3-axis vibration meter vm-54 output ...

  • Page 27: Setting The Date and Time

    17 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. 3. Use the and keys to highlight the date or time item that you want to ...

  • Page 28: Backup Battery

    18 preparations note the clock ic used in this unit has an error of about 1 minute per month. Before measurement, be sure to check and set the time if required. An internal rechargeable backup battery keeps the clock of the unit running when the power is turned off. If the unit is not to be used for...

  • Page 29

    19 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. Note when the unit is...

  • Page 30

    20 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. 2. Press the menu key until the indication "menu 2/2" is shown in the top right of the display. 3. Use the and keys to high...

  • Page 31: Calibration

    21 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. The main display and sub display go into calibration mode. The vibration direction for the main di...

  • Page 32

    22 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

    23 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). The sub display shows the 3-axis bar graph, 3-axis measureme...

  • Page 34

    24 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 ( over shown in reverse) appears when overload in the instantaneous value was detected. Overload indication ([over] shown in normal mode) ap...

  • Page 35: Sub Display

    25 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 x y z sub display mode x/y/z max hold reset dis...

  • Page 36: 3-Axis Bar Graph Screen

    26 reading the displays 3-axis bar graph screen this screen shows bar graphs for all three axes and the instantaneous values simultaneously. 3-axis measurement value display the measurement values for the 3 vibration axes are shown as a numeric readout. Settings screen the settings for sensor, level...

  • Page 37: Calibration Mode

    27 reading the displays calibration mode in calibration mode, the display is automatically switched to 3-axis bar graph mode. 03/03 10:20:30 0 1000 0 0 1000 1000 m/s2 cal acc rms 1000.0 1000.0 1000.0 calibration screen example sub display cal indication.

  • Page 38: Menu Screens

    28 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 and keys. To change the setting of an item, use the and keys. Note when an ...

  • Page 39

    29 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 t...

  • Page 40: Menu Screen 2/2

    30 reading the displays menu screen 2/2 to select an item on a menu screen, use the and keys to move the cur- sor. To change the setting of an item, use the and keys. The menu screen 2/2 contains the lcd contrast setting and the time setting (date and time) items. For information on how to change th...

  • Page 41: Power-On/off

    31 power-on/off power-on hold down the power key for about 1 to 2 seconds until the sub display shows the power-on screen. When the screen appears, release the power key. After the initialization screen was shown, the measurement screen ap- pears. Note by pressing the cal key while the above initial...

  • Page 42: Power-Off

    32 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. Note after turning the unit off, wait at least 5 seconds before turning power back on again. See you sub display screen during ...

  • Page 43: Measurement

    33 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 foll...

  • Page 44

    34 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. Note...

  • Page 45: Maximum Hold

    35 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 ...

  • Page 46

    36 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. I...

  • Page 47: Default Settings

    37 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 2 menu 1/2 sensor type: pv-83c default sensitivity settings when sensor type is charge or ccld: x = 5.00 pc/(m/s...

  • Page 48: Important

    38 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,...

  • Page 49: Important

    39 option program installation/uninstallation 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. 2. While ...

  • Page 50

    40 option program installation/uninstallation note after installing the option program on one vm-54, the card can no longer be used to install the program on any other 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....

  • Page 51: Program Installation Failure

    41 option program installation/uninstallation program installation failure if you insert a program card whose program data have already been installed into another vm-54, a screen such as shown below will appear, indicating that the program cannot be installed. Press any key except the power key to ...

  • Page 52

    42 option program installation/uninstallation uninstalling the option program the procedure for uninstalling an option program from the vm-54 is as follows. 1. Open the lid of the card slot and insert the program card. 2. While holding down the install key, press the power key to turn the unit on. I...

  • Page 53: Output Connectors

    43 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 calibrati...

  • Page 54: Reference Information

    44 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. Changing the setting of the external power swi...

  • Page 55: Important

    45 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. Important do not use any other kind of ac adapter except the nc-98c. Otherwise damage may o...

  • Page 56: Input Connector

    46 reference information input connector the input connector is a tajimi electronics connector 1108-23a10-7f wired as shown below. A: +12 v b: ground c: z channel signal input d: -12 v e: x channel signal input f: y channel signal input g: power supply output from unit (ac adapter or batteries), or ...

  • Page 57: Frequency Characteristics

    47 reference information frequency characteristics 1 10 100 1000 10 0 -10 -20 -30 -40 -50 frequency (hz) overall frequency response with pv-83c connected (typical) relati v e response (db) 10 0 -10 -20 -30 -40 -50 0.1 1 10 100 1 k 10 k frequency (hz) stand-alone frequency response (typical electrica...

  • Page 58: Specifi Cations

    48 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 2 sensitivity settings 10.0 to 99.9 pc/(m/s 2 ) 1.00 to 9.99 pc/(m/s 2 ) 0.100 to 0.999 pc/(m/s 2 ) 0.0100 to 0.0999 pc/(m/s 2 ) when the sensor...

  • Page 59

    49 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 ...

  • Page 60

    50 specifi cations supplied accessories i/o connector cover 1 bnc connector cover 3 iec r14 (size "c") battery 4 jumper pins (attached to the unit) 1 instruction manual 1 inspection certifi cate 1 optional accessories carrying case ac adapter nc-98c 3ch preamplifi er vp-80 3-axis accelerometer pv-83...

  • Page 61

    51 specifi cations unit: mm dimensional drawing of 3-axis vibration meter vm-54 200 56 175 3-axis vibration meter vm-54 input output x y z sub display meas. Time store mode level range x y z sub display mode x/y/z max hold reset display menu light cal power 6v d c i/o output install rion top view si...

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    No. 38746 15-09.