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User’s Manual

19

18. Display Length

Figure 10

Record Tab

1.  Absolute/Relative Time Scale Button
2.  Z-Axis Recorded Data
3.  Pan and Zoom Buttons
4.  Y-Axis Recorded Data
5.  X-axis Recorded Data
6.  Scale Buttons
7.  Record Number Selector
8.  Acceleration/Inclination Display Mode
9.  Data Source
10.  File Save Button
11.  File Open Button
12.  Instrument Download Button
13.  Export Button

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Содержание ABC-MEMS

Страница 1: ...ABC MEMS User s Manual October 4 2017...

Страница 2: ...__________________________________________________ 8 6 4 2 Operation LED _____________________________________________________________ 9 6 5 Acceleration Sensor and Signal Processing _________________...

Страница 3: ...esolution ________________________________________________________________ 32 8 5 2 Window __________________________________________________________________ 32 8 5 3 Weighting _______________________...

Страница 4: ..._____________________________ 40 11 TROUBLESHOOTING_______________________________________ 41 11 1 USB Power Limitation _________________________________________________________ 41 11 2 USB Driver Ins...

Страница 5: ...ollowing features 3 Axis integral MEMS accelerometer Measures and records o Raw acceleration or velocity signals o Acceleration or velocity signal statistics o Vibration or velocity RMS levels o Incli...

Страница 6: ...erform the software installation above BEFORE connecting the instrument to the PC for the first time The installer includes a USB driver which is required for the PC to recognize the instrument 4 2 Ha...

Страница 7: ...ure it we suggest to temporarily change the PC s time zone to the time zone where the instrument will be recording let the application set the instrument to the PC s time zone and change the PC s time...

Страница 8: ...al is weak The Instrument_Manager application automatically calculates and displays the cumulative number of days that the battery would last while recording as a function of the instrument settings N...

Страница 9: ...power comes from the internal battery Power consumption depends on the instrument settings and can go from days to months Periodic WiFi Connect From any state including Idle and Recording the instrume...

Страница 10: ...s static DC and dynamic AC acceleration signals with an adjustable sampling rate of up to 4 kHz Velocities are calculated in real time from the acceleration sensor The accelerometer s dynamic range is...

Страница 11: ...is squared to calculate the instantaneous power The instantaneous power is low pass filtered with an adjustable time constant to produce an average A short time constant provides an average that is ca...

Страница 12: ...6 5 3 Low Frequency Limit The low frequency can optionally be limited by the digital high pass filter The cutoff frequency is adjustable and can be adjusted to extremely low frequencies thanks to the...

Страница 13: ...s Filter 6 5 4 Noise 6 5 4 1 Acceleration Noise Figure 6 shows the RMS noise along the three axes as a function of sampling frequency Figure 6 Figure 7 shows the acceleration noise spectrum when the a...

Страница 14: ...frequency of the high pass filter The velocity noise is not significantly influenced by sampling frequency Figure 8 6 5 5 Sensor Dynamic Range The sensor s dynamic range extends from 8 g to 8 g The pr...

Страница 15: ...g The static acceleration along the X and Y axes should be 0g 6 7 Scale The records in a scale that is internal to the instrument All data is re scaled for display as selected by the user whether it i...

Страница 16: ...pped quickly for a time shorter than the log interval before any data had time to be written to memory In that case only the time stamp is written to memory An empty record can also occur when a recor...

Страница 17: ...celeration at the time when AutoRec is started This way it is also possible to trigger a recording when the tilt of the instrument changes by a predefined amount The threshold applies to the RMS level...

Страница 18: ...he Universal Time Code running in the instrument o Delete all data in the instrument s memory all that data has already been safely stored in the recording file on the server o Start a new recording o...

Страница 19: ...n 3 Sampling Frequency Indicator 4 Memory Fill Indicator 5 Timer Button 6 AutoRec Button 7 Record Button 8 Instrument Time Indicator 9 Tab selector 10 Instrument Temperature Indicator 11 Erase Button...

Страница 20: ...le Button 2 Z Axis Recorded Data 3 Pan and Zoom Buttons 4 Y Axis Recorded Data 5 X axis Recorded Data 6 Scale Buttons 7 Record Number Selector 8 Acceleration Inclination Display Mode 9 Data Source 10...

Страница 21: ...User s Manual 20 Figure 11 Spectrum Tab 1 Cursor Zoom and Pan controls 2 Cursor values display 3 Scale buttons 4 Spectrum 5 Cursor 6 Auto scale button 7 Spectral controls 8 Spectrum reset button...

Страница 22: ...User s Manual 21 Figure 12 Static Tab 1 Static axis indicator 2 Static digital display 3 Inclinometer graphic display 4 Inclinometer angle displays...

Страница 23: ...dicator 11 Server Connection Indicator 12 Server IP Address 13 Email Connection Indicator 8 1 Starting the Application Note The application can be run with or without an instrument connected When an i...

Страница 24: ...heck calibration against the acceleration of gravity see Figure 12 The WiFi Tab Is used to display the present connection state of the meter and to setup its connection parameters SSID Security Passwo...

Страница 25: ...rding using the recording parameters in effect in the instrument s configuration When the signal value goes and stays below the threshold for a set length of time the recording stops and the instrumen...

Страница 26: ...the date and time when the recording must start Press the OK button to exit and arm the timer Press the Cancel button or the Window Close button to exit without arming the timer Figure 14 Timer Settin...

Страница 27: ...is only allowed when the instrument is not actively recording Figure 16 Instrument Settings Panel 1 OK button Saves the settings and closes the window 2 Recall button Calls back settings previously sa...

Страница 28: ...w record and starts recording The threshold is the same on all axes Waiting for inactivity While recording the instrument waits for inactivity Inactivity is defined as signal that stays below the thre...

Страница 29: ...When recording RMS level statistics the instantaneous RMS signal is low pass filtered with an adjustable time constant The time constant is only relevant when recording RMS level statistics and is on...

Страница 30: ...wever when operating at low sampling frequencies with a large number of points it may take a long time to fill the buffer for display The bar provides a visual indication that the buffer is filling up...

Страница 31: ...2 File Save Pressing the Save File button saves all the records downloaded from the instrument to a file on the PC In addition to the whole contents of the recording memory the file also contains anci...

Страница 32: ...he following techniques 8 4 5 1 Zoom Controls To the left of each graph is a two button control The left most looks like a magnifying glass It is used to zoom in and zoom out the corresponding graph T...

Страница 33: ...be The actual resolution is chosen as the closest achievable value 8 5 2 Window The type of window chosen has an impact on the spectral resolution The Hanning window is generally a good choice that p...

Страница 34: ...as follows Press on the button that looks like a cross see Figure 11 1 Place the mouse over the point where the X and Y cursor lines meet and left click This grabs the cursor Drag the cursor to the s...

Страница 35: ...est to locate the router or access point close to the instrument so WiFi communications are reliable Note If the Instrument_Listener application is not running on the server the instrument will not be...

Страница 36: ...er 10 min Setting too short an interval lower than 5 min will drain the battery faster Setting too long an interval several days a week or more will risk losing data if the connection cannot be establ...

Страница 37: ...r must be working must be reachable and must be running the Instrument_Listener application 8 7 4 Setting Up the Server to Work in a Local or Wide Area Network Setting up a server to run on the same l...

Страница 38: ...wever a connection schedule does not need to be in effect for the emails to work That router or access point must be connected to the internet The user must have an email account to use for outgoing e...

Страница 39: ...ves to send the alarm 8 7 6 WiFi Battery Drain Connecting to a network drains the battery Even if the instrument is idle if the periodic connection is enabled the instrument will regularly wake up and...

Страница 40: ...nt_Listener application will open multiple ABC_Server windows Figure 20 Instrument_Listener Application Figure 21 ABC_Server Window The ABC_Server window performs the following operations If data is i...

Страница 41: ...serting a small rod into the reset hole and pushing until a slight click is felt There is no risk of losing any recorded data or settings by resetting the instrument However a hardware reset will rese...

Страница 42: ...t_Manager application is unable to communicate with the meter it may be because the USB driver failed to install properly To check the USB driver installation follow the procedure below 1 Disconnect t...

Страница 43: ...and run DDCI_Driver_Install exe This re installs the USB driver 11 3 Connection Problems Failure to communicate with the PC can also be caused by poor USB cable contacts Make sure the USB connector i...

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