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19

Preparations

4.   Use the setting keys ( , ) to set the display indication to the value 

indicated as charge sensitivity on the calibration chart of the accel-

erometer. 

When an accelerometer with integrated preamplifi er is used, enter 

the voltage sensitivity. For example, when the voltage sensitivity is 

5.90 mV/(m/s

2

), use the value 5.90 pC/(m/s

2

). 

For the servo accelerometer LS-10C or LS-20C, enter the value ac-

cording to the calibration data (approx. 0.300). 

When using the preamplifi er VP-26A, set the charge sensitivity.

Holding one of the setting keys down for more than 2 seconds causes 

the display value to change quickly. 

Содержание VM-83

Страница 1: ...3 20 41 Higashimotomachi Kokubunji Tokyo 185 8533 Japan http www rion co jp english INSTRUCTION MANUAL Vibration Meter VM 83...

Страница 2: ......

Страница 3: ...agram Controls and Features Briefly identifies and explains all parts of the unit Preparations Describes installation connections inserting batteries pre use checks and other steps Measurement Describ...

Страница 4: ...formity with the following European standards Note CE requirements are met provided that a core filter is fitted to every cable The measurement result may be influenced when the instrument is used in...

Страница 5: ...pment make sure that all instructions are fully understood and observed Caution Important Disregarding instructions printed here incurs the risk of injury to persons and or dam age to peripheral equip...

Страница 6: ...iv...

Страница 7: ...revent possible damage caused by battery leakage Do not disassemble the unit or attempt internal alterations Have the unit checked and serviced regularly within one or two years Sensitivity calibratio...

Страница 8: ...13 Selecting an accelerometer 14 Connecting the accelerometer 15 Setting the INPUT SELECT switch 17 Accelerometer sensitivity calibration 18 Measurement 20 Power on 20 Measurement mode setting 21 Dis...

Страница 9: ...ssing 52 Control operation in remote mode 53 Command format 54 Technical Information 69 Noise level and measurement range 69 Delay of output signal 73 Rack mounting 73 Accelerometer installation 74 Di...

Страница 10: ...viii...

Страница 11: ...tions in the range of 0 1 to 1 Hz can be measured something that is very hard to achieve with conventional piezoelectric accelerometers Display characteristics can be switched to rms equivalent peak a...

Страница 12: ...OUT OVER ROM CPU I O EEPROM LCD EXT 6 V Charge amplifier Gravity acceleration canceling circuit Amplifier Attenuator Amplifier Amplifier Amplifier Amplifier Interface LCD driver DC DC converter IEC R1...

Страница 13: ...turns itself off after 60 seconds When the batteries are run down the display will be darker Calibration key CAL key This key turns the calibration signal supplied at the AC and DC outputs on and off...

Страница 14: ...d off High pass filter key HPF key Serves for activating the high pass filter indicator above the key lights Accelerometer input connector PICKUP connector The piezoelectric accelerometer is to be con...

Страница 15: ...eamplifier 2 input connector Preamplifier 1 input connector Battery holder Four IEC R14 size C batteries are inserted here Battery holder button Push this button to lock or unlock the battery holder A...

Страница 16: ...put select switch Serves to select the input source Available settings are PICKUP PRE AMP 1 PREAMP 2 SERVO SERVO Serial interface connector Serves for connection of a computer or printer Servo input c...

Страница 17: ...7 Controls and Features Side panel...

Страница 18: ...ctual use not all elements will be seen together COMP indicator This indicator appears when the comparator function is selected REMOTE indicator This indicator appears when the unit is being controlle...

Страница 19: ...pass filter setting RMS EQPEAK EQP P indicators Shows the display detection characteristics setting Measurement value Shows the current measurement value maximum hold value peak hold value menu setti...

Страница 20: ...rs when the input signal has fallen below the mea surement threshold Battery capacity indicator Shows the remaining capacity of the batteries CAL indicator This indicator appears during calibration Le...

Страница 21: ...the battery holder back into the unit Be sure to lock the holder by pressing the battery holder button again Important While inserting or removing batteries support the battery holder by hand Take car...

Страница 22: ...ctures When the backlight is used battery consumption will be about 20 higher When the servo accelerometer is connected current consumption increases by about 15 Remaining battery capacity indication...

Страница 23: ...he prop up feet The unit can be tilted by flipping out the prop up feet Tilt the feet until they snap in place Important When using the prop up feet do not place objects on top of the VM 83 and do not...

Страница 24: ...15 7 0 7 Mounting resonance frequency kHz 1 24 9 70 25 30 2 Vibration frequency range Hz 1 to 7000 1 to 3000 1 to 25000 1 to 9000 1 to 8000 2 Temperature range C 50 to 160 50 to 160 50 to 160 50 to 26...

Страница 25: ...e run should therefore be kept as short as possible If the cable length exceeds 5 meters the use of a preamplifier is recommended Connection via a preamplifier When the accelerometer is to be installe...

Страница 26: ...eamplifier When using an accelerometer with built in pream plifier PV 41 PV 42 use the cable supplied with the accelerometer VP 51 series to connect the accelerometer to the PREAMP 2 input connector o...

Страница 27: ...rom Accelerometer input connector on front panel PREAMP1 Signal from PREAMP 1 connector on rear panel PREAMP2 Signal from PREAMP 2 connector on rear panel SERVO Signal from SERVO connector on rear pan...

Страница 28: ...t sensi tivity Be sure to perform sensitivity calibration Sensitivity calibration 1 Set the INPUT SELECT switch as required 2 Set the power switch to ON 3 Press the accelerometer sensitivity key PICKU...

Страница 29: ...plifier is used enter the voltage sensitivity For example when the voltage sensitivity is 5 90 mV m s2 use the value 5 90 pC m s2 For the servo accelerometer LS 10C or LS 20C enter the value ac cordin...

Страница 30: ...ration measurement start Measurement mode CAL status Level range Maximum value hold Display characteristics Peak hold High pass filter Backlight status Low pass filter Sensitivity setting status Sensi...

Страница 31: ...edure 1 Press the ACC VEL DISP key The indicator above the key lights up 2 Use the setting keys to select from ACC VEL DISP ACC acceleration m s2 mm s2 VEL velocity mm s DISP displacement mm Note The...

Страница 32: ...The indicator above the key lights up 2 Use the setting keys to select from RMS EQPEAK EQP P RMS Effective value EQPEAK Equivalent peak value EQP P Equivalent peak to peak value The equivalent peak va...

Страница 33: ...the setting key to select the filter setting The available settings are listed below Piezoelectric accelerometer 1 Hz 3 Hz 10 Hz 20 Hz 50 Hz OFF ACC only Servo accelerometer 0 1 Hz 0 3 Hz 1 Hz For mor...

Страница 34: ...the setting keys to select the filter setting The available settings are listed below Piezoelectric accelerometer 100 Hz 300 Hz 1 kHz 3 kHz 10 kHz OFF ACC only Servo accelerometer 50 Hz 100 Hz For mor...

Страница 35: ...ng Set the level range as follows Use the LEVEL RANGE keys to select an appropriate level range The relationship between INPUT SELECT switch accelerometer sensitiv ity measurement mode and HPF is show...

Страница 36: ...1 3 10 30 100 300 1000 1 00 to 9 99 pC m s2 ACC 0 3 1 3 10 30 100 300 1000 VEL 3 10 30 100 300 1000 DISP 0 1 3 10 30 100 300 1000 DISP 1 0 3 1 3 10 30 100 300 1000 DISP 2 0 03 0 1 0 3 1 3 10 30 100 10...

Страница 37: ...ettings for the serial interface printer peak hold function and compar ator function are made via menus 1 Call up the menu screen Note If one of the keys CAL COMP ON OFF or MAX HOLD ON OFF is set to O...

Страница 38: ...become effective when switch ing back from the menu screen to the measurement screen Menu contents Menu 0 Serial interface and printer function ON OFF 0 0 Serial interface and printer function OFF Ch...

Страница 39: ...hoose a setting from 0 to 98 in steps of 2 Menu 5 Delay time for comparator function Sets the delay time in the range from 0 to 9 seconds 5 Choose a setting from 0 to 9 in steps of 1 Menu 6 Comparator...

Страница 40: ...Note The settings for menu number 0 to 2 and 4 to 8 will be retained also while the unit is turned off Menu number Setting 0 0 0 Serial interface and printer OFF 0 1 Serial interface ON 0 2 Printer ON...

Страница 41: ...g external equipment to record the AC output signal or DC output signal of the VM 83 perform calibration as follows In the CAL calibration state the range full scale signal is output from the AC outpu...

Страница 42: ...n mode off AC output signal in calibration mode Display characteristics RMS 2 Vrms output EQPEAK 2 Vpeak output EQP P 2 Vp p output Note In calibration mode all controls except the LIGHT key CAL key a...

Страница 43: ...Setting procedure 1 Press the MAX HOLD ON OFF key to set the function to ON 2 When the maximum hold function is ON the indication MAX HOLD appears on the display and the indicated numeric value is th...

Страница 44: ...34 Measurement 3 When the maximum hold value is higher than the overload threshold the indication MAX HOLD OVER is shown 4 The HOLD RESET key can be used to reset the maximum hold value at any time...

Страница 45: ...normal measurement Note While the maximum hold function is ON all controls except the LIGHT key MAX HOLD ON OFF key HOLD RESET key and power switch are inactive The maximum hold function applies only...

Страница 46: ...old ON 3 Return to the measurement screen 4 When the peak hold function has been activated the indication PEAK HOLD appears on the display and the indicated numeric value is the peak value measured up...

Страница 47: ...hold function is ON all controls except the LIGHT key MENU key HOLD RESET key and power switch are inactive Turning the peak hold function off Set the menu 3 item to 3 0 Note The peak hold function is...

Страница 48: ...uit LCD flashing buzzer sounds To turn the comparator function on and off use the COMP ON OFF key Pressing the COMP ON OFF key once turns the function on and pressing it once more turns it off again T...

Страница 49: ...s active This setting is made with menu 4 See Menu settings on page 27 For example if the comparator level is set to 48 the level corresponding to 48 of the level scale value is the threshold and the...

Страница 50: ...is pressed or the comparator function is turned off with the COMP ON OFF key Auto reset time The auto reset time is set with menu screen 7 see Menu Settings on page 27 When the function is set to ON...

Страница 51: ...time has elapsed 2 HOLD RESET key Pressing the HOLD RESET key on the front panel immediately resets the comparator output This function is independent of the auto reset ON OFF setting 3 COMP ON OFF k...

Страница 52: ...h menu 8 2 LCD display flashes Measurement value indicator section flashes in 0 5 second intervals 3 Open collector circuit operates causing the comparator output ter minals on the rear panel to close...

Страница 53: ...ear panel of the VM 83 to the printer Cable Straight serial cable generic Connector type on VM 83 9 pin D sub male Connector type at printer 25 pin D sub female For DPU 414 use the connector adapter s...

Страница 54: ...ation is paused during calibration com parator operation sensitivity setting and while using the menu screens DIP switch settings for printers CP 11 CP 10 Set the DIP switches for the respective print...

Страница 55: ...o 3 for the printer software as follows For more information on making these settings please refer to the instruction manual of the DPU 414 Vibration meter VM 83 9600 bps SW 1 1 OFF 2 ON 3 ON 4 OFF 5...

Страница 56: ...46 Printer Printout sample A set of five measurement values for every 2 seconds is printed out every 10 seconds as one line is used to indicate an OVER occurrence and an UNDER occurrence...

Страница 57: ...ment using commands sent from a computer Measurement results can also be sent to the computer Transmission principle Transfer principle asynchronous half duplex Data word length 8 bit Stop bits 2 Pari...

Страница 58: ...ocal mode Remote mode In this mode the VM 83 operates in response to commands sent from a computer Only the MENU key and LIGHT key on the VM 83 are active all other controls are disabled The indicatio...

Страница 59: ...n the rear panel of the VM 83 to the computer Cable Generic cross wired serial cable null modem Connector type on VM 83 9 pin D sub male 3 Set the power switch of the VM 83 to ON 4 Make the required m...

Страница 60: ...er sends RMT1 CR LF to the VM 83 2 When RMT1 CR LF has been received the VM 83 returns ACK READY CR LF to the computer The link is now estab lished and the indication REMOTE appears on the display of...

Страница 61: ...Control code 06H acknowledge CR Control code 0DH carriage return LF Control code 0AH line feed EOT Control code 04H end of transfer READY ASCII string command ASCII string command and parameters data...

Страница 62: ...seconds Repeat this 2 to 3 times If the REMOTE indicator still does not light one of the following conditions may exist Transfer parameters do not match Check settings made with menu screens Interface...

Страница 63: ...the VM 83 is in remote mode only the LIGHT key and MENU key are active The LIGHT key allows turning the display backlight on and off and the MENU key in remote mode serves for switching back to local...

Страница 64: ...ters Parameters for changing function settings Parameter for requesting data The parameters for changing function settings are numerals and the param eter for requesting data is In the following comma...

Страница 65: ...tery capacity status 61 DOD Get measurement data 62 DOF n Output instantaneous value every 0 1 seconds in non protocol mode 63 MAX n Set maximum hold function to On Off 64 MAX Get maximum hold functio...

Страница 66: ...cified by ID number receives the command FF specifies all connected VM 83 RMT Get ID number and remote mode status Output data format p1 p2 p3 EOT CR LF p1 p2 is ID number p3 1 Remote mode RNG n Set l...

Страница 67: ...pC m s2 ACC 0 3 1 3 10 30 100 300 1000 VEL 3 10 30 100 300 1000 DISP 0 1 3 10 30 100 300 1000 DISP 1 0 3 1 3 10 30 100 300 1000 DISP 2 0 03 0 1 0 3 1 3 10 30 100 10 0 to 99 9 pC m s2 ACC 0 03 0 1 0 3...

Страница 68: ...value specified with n1 to n3 n4 1 Set sensitivity to 1 100 of value specified with n1 to n3 n4 2 Set sensitivity to 1 1000 of value specified with n1 to n3 Explanation for command SNS n1 n2 n3 n4 n1...

Страница 69: ...ch setting Piezoelectric accelerometer PICKUP PREAMP1 PREAMP2 Servo accelerometer SERVO SERVO Piezoelectric Servo n 0 100 50 n 1 300 100 n 2 1 k 100 n 3 3 k 100 n 4 10 k 100 n 5 OFF 100 n 6 user filte...

Страница 70: ...PICKUP PREAMP1 PREAMP2 Servo accelerometer SERVO SERVO Piezoelectric Servo n 0 OFF 0 1 n 1 1 0 3 n 2 3 1 n 3 10 1 n 4 20 1 n 5 50 1 n 6 user filter user filter This is valid only when the user filter...

Страница 71: ...alibration mode status Output data format p EOT CR LF p 0 Calibration OFF p 1 Calibration ON BAT Get battery capacity status Output corresponds to status of battery capacity indi cator on display Outp...

Страница 72: ...lue p5 6 to 1 p6 O overload occurred p6 _ no overload occurred _ is a space Explanation of p5 p5 stands for 10p5 For example when measurement value is 10000 p5 will be 1 because 1000 101 When operatin...

Страница 73: ...non protocol mode output is terminated For information on output data format see section on DOD DOF communication format Note Because this unit supports only half duplex commu nication it cannot recei...

Страница 74: ...m hold ON MAX Get maximum hold function status Output data format p EOT CR LF p 0 Maximum hold OFF p 1 Maximum hold ON PEK n Set peak hold function to On Off n 0 Peak hold OFF n 1 Peak hold ON PEK Get...

Страница 75: ...mand is active during maximum hold peak hold and comparator operation CMP n Set comparator function to On Off n 0 Comparator OFF n 1 Comparator ON CMP Get comparator function status Output data format...

Страница 76: ...Auto reset ON n5 to n6 Auto reset time 00 to 90 steps of 10 n7 0 Buzzer OFF n7 1 Buzzer ON For items that are not to be changed send _ space CMS Get comparator function settings Output data format p1...

Страница 77: ...PREAMP 1 input p1 2 PREAMP 2 input p1 3 SERVO input p1 4 SERVO input p2 Level range 0 to 7 RNG n p3 Measurement mode 0 to 2 UNT n p4 Display characteristics 0 to 2 DET n p5 to p8 Sensitivity SNS n1 n...

Страница 78: ...ion Explanation RMT n1n2n3 Cancel remote mode RMT RNG n Level range UNT n Measurement mode DET n Display characteristics SNS n1 to n4 Set sensitivity LPF n Low pass filter HPF n High pass filter CAL n...

Страница 79: ...piezoelectric accelerometer input Accelerometer type Measurement mode Measurement range HPF LPF Display characteristics Noise level PV 85 Acceleration 0 3 OFF OFF RMS 0 0034 m s2 Velocity 3 10 Hz OFF...

Страница 80: ...70 Technical Information 3 Measurement range with servo accelerometer LS 10C Acceleration measurement range...

Страница 81: ...71 Technical Information Velocity measurement range...

Страница 82: ...72 Technical Information Displacement measurement range...

Страница 83: ...is then reconverted to analog for the AC and DC output For this reason a certain delay is introduced as shown below For products with the last four digits of the serial number between 0001 and 2363 t...

Страница 84: ...and measurement object is required The contact resonance frequency will be lower than with rigid screw mounting Regarding the screw holes the same precautions as for rigid screw mounting apply Magnet...

Страница 85: ...limits the upper range of vibration frequencies that can be measured The diagram below shows the relationship between mounting method and high range characteristics This demonstrates that besides sel...

Страница 86: ...ion signal to an A D converter and then performs filter processing rms conversion and other functions using a DSP When the number of effective digits for display decreases display accuracy cannot be m...

Страница 87: ...s effect In the VM 83 a 5th order filter is used for this purpose Note that the filter has the effect shown below In the above illustration the shaded section represents the area where the aliasing ef...

Страница 88: ...78 Technical Information Filter characteristics Piezoelectric accelerometer High pass filter Low pass filter The above specifications are a representative example for AC output...

Страница 89: ...79 Technical Information Servo accelerometer LS 10C High pass filter Low pass filter The above specifications are a representative example for AC output...

Страница 90: ...rolling settings and measurement operation of the VM 83 from the computer via the serial port Measurement data downloaded from the VM 83 can be stored in text file format allowing further processing f...

Страница 91: ...SERVO input For servo accelerometer LS 10C or LS 20C 8 pin female connector Measurement modes 1 Acceleration ACC m s2 piezoelectric accelerometer mm s2 servo ac celerometer 2 Velocity VEL mm s 3 Disp...

Страница 92: ...isplacement 0 1 0 3 1 3 10 30 100 mm HPF 1 Hz Displacement 0 03 0 1 0 3 1 3 10 30 100 mm HPF 3 Hz Displacement 0 003 0 01 0 03 0 1 0 3 1 3 10 mm HPF 10 Hz or higher Servo accelerometer Acceleration 10...

Страница 93: ...and display characteristics is held numeric display only Hold reset key allows reset at any time Peak value hold Peak value of acceleration waveform is held Comparator function Level evaluation based...

Страница 94: ...intervals updated every 2 seconds 3 Measurement mode display characteristics filter 4 Battery status 3 segment indication Calibration 1 Accelerometer sensitivity 0 030 to 0 999 1 00 to 9 99 10 0 to 9...

Страница 95: ...overall accuracy with LS 10C 1 Hz Acceleration range full scale 3 Velocity range full scale 4 Displacement range full scale 6 Max output voltage 6 V peak 2 DC output Range full scale 2 V output impeda...

Страница 96: ...elerometer input Accelerometer type Measurement mode Measurement range HPF LPF Display characteristics Noise level PV 85 Acceleration 0 3 OFF OFF RMS 0 0034 m s2 Velocity 3 10 Hz OFF RMS 0 004 mm s Di...

Страница 97: ...87 Specifications 3 Measurement range with servo accelerometer LS 10C Acceleration measurement range...

Страница 98: ...locity measurement range 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 50 100 200 500 0 001 0 002 0 005 0 1 0 2 0 5 1 2 5 10 0 01 0 02 0 05 20 50 100 200 500 1000 0 159 mm s 1 59 Hz 1 59 mm s Velocity mm s r...

Страница 99: ...89 Specifications Displacement measurement range...

Страница 100: ...ptional AC adapter NC 98 series Input voltage range of external power supply connector 5 V to 6 5 V DC Current consumption Approx 190 mA 6 V DC 1 Approx 60 mA using AC adapter 1 2 Battery life for con...

Страница 101: ...essories AC adapter NC 98 series 100 V to 240 V Piezoelectric accelerometer Vibration meter preamplifier VP 26A Extension cable EC 02S series Servo accelerometer LS 10C Servo accelerometer cable EC 40...

Страница 102: ...92 Specifications Unit mm Dimensional drawings...

Страница 103: ...Calibration 31 84 Calibration key 3 calibration mode 55 CAL indicator 10 CAL n 55 61 CMP 55 65 CMP n 55 65 CMS 55 66 CMS n1 n2 n3 n4 n5 n6 n7 55 66 Comparator function 55 83 Comparator operation 38 C...

Страница 104: ...lter 4 24 55 Low pass filter indicator 9 Low pass filter key 4 LPF n 55 59 M MAX 55 64 MAX HOLD ON OFF key 4 maximum hold function 55 Maximum value hold 33 83 maximum value hold function 4 MAX n 55 64...

Страница 105: ...sume function 20 RMS EQPEAK EQP P indicators 9 RMT 55 56 RMT n1 n2 n3 55 56 RNG n 55 56 RST 55 65 S Sending of commands 50 sensitivity 55 Serial interface 47 90 Serial interface connector 6 Servo acce...

Страница 106: ...This product is environment friendly It does not include toxic chemicals on our policy No 63760 18 07...

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