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Instruction Manual Vibration Switch/ Sensor VS11 VS12 Manfred Weber Metra Mess- und Frequenztechnik in Radebeul e.K. Meissner Str. 58 - D-01445 Radebeul Tel. +49-351 836 2191 Fax +49-351 836 2940 Email: Info@MMF.de Internet: www.MMF.de...
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Metra Mess- und Frequenztechnik in Radebeul e.K. Meißner Str. 58 D-01445 Radebeul Tel. 0351-836 2191 0351-836 2940 Email Info@MMF.de Internet www.MMF.de Note: The latest version of this manual can be found as a PDF at http://www.mmf.de/produktliteratur.htm Specifications subject to change.
6.Measuring in the Frequency Range (FFT)............11 7.Teach-in Function....................12 8.Measuring Points on Rotating Machines..............13 8.1.General......................13 8.2.Attachment....................13 8.3.Attachment Recommendations to ISO 10816-1..........13 9.Vibration Monitoring with Standard Limits............14 10.Installing the PC Software..................17 11.Integration of VS11/12 with other Software............18 12.Firmware Update....................18 13.Technical Data....................20 Appendix: Warranty CE Declaration of Conformity...
Similarly, the devices can be used as impact detectors, for example, to report collisions. The VS11 and VS12 devices measure and monitor vibration in both the time and frequency domain, for this reason they can selectively monitor individual frequency band components.
The supply voltage range is 5 to 30 V. Power consumption is less than 100 mA. Figure 1: Open VS11 with terminals for power supply / relay output and USB socket During parameter setting the VS11 obtains its power via the USB cable.
Chapter 10. The program opens in the setup view (Figure 3). Figure 3: Setup View The VS11/12 runs in virtual COM port mode, i.e. the device is assigned a virtual USB serial port (COM port). The COM port number is assigned to the device by windows, but can be changed in the windows control panel if required.
The adjustable parameters are assigned to the function blocks “Gain”, “Filters/Integrators”, “Warning”/Alarm” and “Switch Output”. All entries will immediately be transferred to VS11/12 and retained even after dis - connecting the supply voltage. 4.2.2. Monitoring Mode VS11/12 has two monitoring modes to choose from: •...
4.2.4. Filters and Integrators VS11/12 can monitor vibration acceleration or vibration velocity. A range of high and low pass filters are available for selection. The widest frequency range is 0.1 Hz to 10 kHz for acceleration, and 2 to 1000 Hz for velocity. The frequency range is adjusted via a drop-down menu.
The calibration password (“Cal. Password”) only needs to be entered by calibration labs. 4.3. LED Status Indicators The VS11 signalizes the current status via four green/red LEDs. Whenever the de- vice is ready for operation all LEDs light up. The LEDs have the following configu- ration:...
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By pressing “Restart” the chart is deleted and begins anew. 6. Measuring in the Frequency Range (FFT) In addition to monitoring RMS and peak, VS11 and VS12 enable limit value moni - toring in the frequency range by means of frequency analysis (FFT). The vibration...
For this purpose switch to the tab “FFT”. The window (Figure 7) displays the fre- quency spectrum of the acceleration peak value, selectable from 5 to 1000 Hz or 50 to 10000 Hz. Figure 7: Frequency Analysis By right clicking on the chart area you can automatically scale the chart (auto scaling Y).
7. Teach-in Function The VS11 has a teach-in function for calibrating the alarm limit. A PC is not re- quired for this function. To use the teach-in function the vibration switch has to be mounted onto the object to be measured, which should be in ready-to-monitor oper- ating status.
8.2. Attachment The VS11/12 devices have robust aluminum casing with an M8 thread pin for at- tachment. The devices should be attached by hand only. Please do not use tools.
Figure 9: Measuring Points on Vertical Figure 10: Measuring Points on Flange Bearings Bearings Figure 11: Measuring Points on Electric Motors Figure 12: Measuring Points on Ma- chines with Vertical Rotors 9. Vibration Monitoring with Standard Limits Deriving statements about the condition of a machine from monitoring vibration limit values requires some experience.
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In part 3 of ISO 10816-2:2009 you will find the zone boundaries for vibration severity on machines with a power rating of 15 kW bis 50 MW (2). Medium sized ma- Large machines with chines with 15 to 300 300 kW to 50 MW Machine type Electric motors with a Electric motors with a...
Table 3: Classification of vibration severity on rotodynamic pumps to ISO 10816-7 10. Installing the PC Software Next connect the VS11/12 to a USB port on your PC. With VS11 you will need to undo the four Allen screws and remove the lid. The connection is established via a micro USB cable.
The firmware is the same for all VS1x devices. Connect the VS11/12 via a USB cable to the PC and check in the setup program the installed firmware version of your vibration switch (Figure 3). If the version number shown on the web page should be higher download the firmware file, unzip it and save it to a folder of your choice.
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Click the “Load” button and enter the directory of the downloaded firmware file vs1x.hex. Then click “Send” to start the update process. The progress will be indi- cated by a bar graph. After a successful update the vibration switch will restart and “Firmware Updater”...
VS11: via micro USB socket inside casing VS12: via 8-in socket Binder 711 with Cable VM2x-USB Power Supply VS11: 5 to 30 V DC / < 100 mA or USB VS12: 5 to 12 V DC / < 100 mA or USB Operating Tempera- -40 –...
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According to EMC Directive 2014/30/EC and UK Electromagnetic Compatibility Regulations 2016 Product: Vibration Switches Type: VS11 and VS12 It is hereby certified that the above mentioned product complies with the demands pursuant to the following standards: DIN / BS EN 61326-1: 2013...
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