Larson Davis HVM200, Reference Manual

Page: 21 / 77

HVM200 Reference Manual Setting Up the Measurement 3-5
Setting Misc Measurement Options
Step 1. Tap the menu icon on the HVM200 app, then tap Settings .
Step 2.
Use the arrow in the bottom right to move to the
Misc
tab.
Step 3.
If you’ve purchased the Octave Band Analysis feature, select
1/1 Octave
or
1/3 Octave
.
Step 4.
If you want to choose dB reference units as the
Display Units
, select a
dB Reference
option.
Step 5.
If desired, specify an
Exposure Limit
and
Exposure Action
.
TAKE NOTE
The exposure settings show default
values according to the EU Physical Agents
Directive (2002/44/EC), but you can modify
them here for other standards or your custom
requirements.
Selecting Tools Settings
Step 1.
Tap the menu icon on the HVM200 app, then tap
Settings
.
Step 2. Use the arrow in the bottom right to move to the Tools tab.
Step 3. To customize the Display Units , see Step 4. in the section Setting Misc
Measurement Options .
Step 4. If desired, select a new option from the Integration drop-down, specify
the k-Factor for each axis, and enter a Data File Name .
TAKE NOTE 1. For whole body
measurements, the HVM200 multiplies the
specified k-Factor by the instantaneous
acceleration for each axis to produce the
summation (

value in the Overall view of
the app. K-factors are ignored for general
vibration and hand/arm measurements.
For more information, see
“Glossary of
Terms” on page C-1.
2. Single integration calculations convert
acceleration values into velocity values;
double integration converts acceleration
values into displacement values.
Verifying Sensor Settings
If you load a new setup with different sensitivity information than the
Active setup, the Active sensitivity settings are overwritten with the
new sensitivity information. However, if you’re using an accelerometer
with TEDS capability, the Sensor tab settings are automatically
specified for the meter with the serial number shown. If your
accelerometer does not have TEDS capability and you have not
specified the settings, see “Connecting the Accelerometer” on page 2-8.
The data files for this Setup
will be saved with the Data
File Name as a prefix.