Conducting Measurements; General Advice; Selecting The Units Of Measurement; Selecting The Mode Of Operation - ALLURIS FMI-100 Notice D'utilisation

4.0 Conducting measurements

4.1. General advice

As gauges are often used in the scope of destruction-tests or for appraising security-relevant
thresholds you should always become familiar with the potentially resulting risks – broken
fragments, sudden change of force, crush risk – first and, if necessary, take counter actions.
The internal sensor functions bi-directional, i.e. in both directions, compression and tension. Factory-side, the
instrument is attuned to display a positive value in the case of compressive force applied at the measurement
axle, and a negative value in the case of tensile force. You may change this setting; see Chapter 8.2..
The instrument compensates zero-drifts automatically (tracking-function). In case of marginal preload, this
function can lead to a zero-shift, which may affect the measurement result. This is why values, which are below
approximately 0.5% of the nominal range of force measurement, are not shown; the display is switching back to
0.000. You may deactivate this function; see Chapter 8.3.
4.2. Mounting the adapters for compression and tension forces
Select the appropriate attachment for compression forces or use the hook to detect tension forces. The
extension rod should be used only if the accessibility of the object cannot be achieved without. Special
attachements for specific applications can be found on our homepage www.alluris.de.
Attach adapters by hand only. Do not use tools to screw adapters onto the instrument`s threaded
axle. Radial and side forces can damage the instrument. In order to monitor active forces it is
recommended to switch the instrument on while mounting an adapter.

4.3. Selecting the units of measurement

Using the MODE-button you may choose your preferred unit of measurement. Each time the button is pushed
the unit of measurement changes. You may always change the display and let values be converted.

4.4. Selecting the mode of operation

The PEAK-button allows you to select the mode of operation, in which you wish to conduct the measurement. If
the word "Peak" does not appear on the display, both compressive and tensile force values are shown. If the
word "Peak" appears without sign/prefix, the gauge displays peak values of compressive force, if "Peak" is
accompanied by a minus("-")-prefix, the instrument shows peak values of tensile force.
The peak values (Peak) are recorded during measurement in all modes of operation; they are stored until the
gauge is set back to zero by way of taring/zero-adjusting (»O«-button).
4.4.1. Regular mode
In the regular mode of operation the actual measured value is displayed. The actual measured value is the
average value of all single measured values since the display`s last update. Factory-made, the display update is
attuned to 3Hz. You may alter this setting; see Chapter 8.6.
4.4.2. Peak value indicator (Peak +) / drag indicator function
If the peak value indicator Peak+ is turned on, the display`s index resembles a drag indicator, which is dragged
further forward when values are rising. The measurement frequency in this mode is 1000Hz.
FMI-200 | FMI-210 | FMI-400
FMI-220 | FMI-230 | FMI-230
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FMI-100 | FMI-300