MMF VM30-H, Инструкция по эксплуатации, Страница: 15 / 58

After a sufficient duration of measurement you may save the result by pressing SAVE. The
vibration exposure must persist in the moment of saving. Please make sure that the instrument is
in the manual save mode. If necessary, select in the menu “2/8: Recording setup” the mode
“manually by SAVE key”. Otherwise the data logger will start after the SAVE key. You may
also choose whether you like to save date and the time and a 20 characters comment with the
result. A comment text can be entered with the ◄▲▼► keys and OK.
For the measurement of vibration total value Ahv press again the ▲ (Range) key, select
“human vibration” and the weighting filter “H/A Wh”. Select the display mode “Ahv”. You will
be asked for the multiplying factors kx, ky and kz. For hand-arm measurement they have the
value “1.0” (see p. 26).
The instrument will display only one value Ahv, which is the vector sum of three axes. Start the
measurement by ESC and measure approximately for the same time as for interval RMS.
With the gain settings made before there should be no overload.
Save the measurement with the SAVE key.
If the vibration exposure consists of different sections, more than one measurements may be
required.
For the calculation of
daily exposure A(8) and for reporting the results Metra provides an Excel
sheet with direct data import from the serial interface. A description can be found on page 31.
Notice : You may simplify the setup of the VM30-H by using pre-defined setups. Press the ▼
(LOAD) key to choose from 10 stored setups. In the original configuration setup no. 0 contains
the settings for the interval RMS of hand-arm vibration and setup no. 1 for vibration total value
(see p. 27).
5.2.3. Reporting of Measuring Results
The report to ISO 5349-2 should include the following information:
•
General information:
- Client
- Purpose of measurement
- Date
- Name of operator
- Name of evaluating person
•
Environmental conditions:
- Location
- Temperature
- Humidity
- Noise
•
Daily operating sequence for the activities under test:
- Description of activities
- Used machine and tools
- Time flow of activities (work time, breaks)
- Basis for the used exposure time (e.g. job norm)
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