1. Vibration Monitoring System M14
Metra Mess- und Frequenztechnik in Radebeul e.K.

2. Vibration Monitoring System M14
Applications
Monitoring of vibration severity (velocity) at rotating machinery to ISO (formerly ISO ) und reciprocating machinery to ISO (VDI 2063)
Monitoring of roller bearings
Remote maintenance
Visualization of machine condition via digital networks
Emergency shut-down or alarming at high vibration levels, e.g. at pumps, compressors, centrifuges, blower fans, mixers …
Quality control in production lines
Metra Mess- und Frequenztechnik Radebeul / Germany

3. Vibration Monitoring System M14
Sensors
Piezoelectric accelerometers with IEPE output
Metra Mess- und Frequenztechnik Radebeul / Germany

4. Vibration Monitoring System M14
Measuring functions
M14
Monitoring in Time Domain:
RMS and peak measurement
Vibration acceleration and velocity
Frequency range 0.3 Hz to 10 kHz
High pass and low pass filtering
Monitoring in Frequency Domain:
Frequency analysis (FFT) of vibration acceleration
2 frequency ranges: 1.4 and 11 kHz
Free adjustable limit curve
Metra Mess- und Frequenztechnik Radebeul / Germany

5. Vibration Monitoring System M14
Alarm Functions
Monitoring in Time Domain:
Adjustable alarm limit
Adjustable delay and hold time
Warning limit in percent of alarm
Monitoring in Frequency Domain:
Limit curve with 10 frequency/ Amplitude points
Warning limit in percent of alarm
Relay outputs for warning and alarm
Metra Mess- und Frequenztechnik Radebeul / Germany

6. Vibration Monitoring System M14
Teach-in Function for the Alarm Limit
Automatic adjustment of the alarm threshold by a pushbutton
The current vibration level is measured, multiplied with a user-selectable factor and saved as new alarm limit
The FFT mode also features a teach-in function: Ten frequency band of equal width get an individual alarm limit depending on the highest amplitude in the respective band
Metra Mess- und Frequenztechnik Radebeul / Germany

7. Vibration Monitoring System M14
Digital Interfaces
USB socket (Mini) at front panel for setup and measurement
RS-485 serial bus interface at rear side via DIN rail contacts for setup and measurement
Cable-free plug connection
Up to 32 modules in parallel
Also provides supply voltage
Metra Mess- und Frequenztechnik Radebeul / Germany

8. Vibration Monitoring System M14
Outputs
2 relay outputs (PhotoMOS; 60 V / 0.5 A) for warning and alarm
Isolated 4-20 mA current loop output
Wide-band signal output
Metra Mess- und Frequenztechnik Radebeul / Germany

9. Vibration Monitoring System M14
LEDs at Front Panel
10 LED bar graph (green / red) - Red LEDs indicate vibration above warning limit - Full bar graph indicates that the alarm limit is reached
IEPE sensor indicator (yellow: OK; red: cable or sensor fault)
Overload
Metra Mess- und Frequenztechnik Radebeul / Germany

10. Vibration Monitoring System M14
Special Features
Measurement of overall values (RMS / peak) and frequency analysis
Very compact design
Simple installation, easy wiring
Convenient setup via USB and free PC setup software tool
RS-485-Bus for control equipment (PLCs, panel meters, recorders etc.)
Level indication by LED bar graph
Metra Mess- und Frequenztechnik Radebeul / Germany

11. Vibration Monitoring System M14
Setup via USB
USB connector at front side
Virtual COM port mode
Free LabView based setup tool
ASCII command set for settings and measurement
Metra Mess- und Frequenztechnik Radebeul / Germany

12. Vibration Monitoring System M14
Measurement via USB
Metra Mess- und Frequenztechnik Radebeul / Germany

13. Vibration Monitoring System M14
Setup and Measurement via RS-485
Two-wire interface at rear side (DIN rail)
Up to 32 M14 modules per bus
Robust interface, cheap cables, can be some hundred meters long
ASCII command set for all settings and measuring functions published
Modules are addressed by their serial numbers
Examples: Set filter of module no at 1 Hz to 11.5 kHz #170884F0806<CR> Answer: /a Fetch RMS / peak values from module no #170884M<CR> Answer: (+ checksum)
RS-485 suitable for the integration into factory control systems (PLC, SCADA etc.)
Metra Mess- und Frequenztechnik Radebeul / Germany