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2.7. LED-display on the probe
The LED displays on the instrument are replicated on the probe with DISTANCE
on the left, ENERGY on the right.
3. To take readings
3.1. General
Over the different points of menu can be adjust/stopped average values,
upper and lower bounds as well as measurements or a calibration. With the
arrow key can be jumped to the next point of menu. As soon as the last point of
menu is reached, through pressing the HOME button or the - button the
equipment can be led to the first point of menu. Inside of a menu point the
menu can be changed by pressing the + or - keys. To show you in which point
of menu you are, the display is showing you the point of menu on the display
and the adjusted value. With the HOME key the menu can be left at each time.
3.2. Measuring
Pressing the GO button for a minimum of 1 second turns the instrument on. Hold
the probe about 18 mm away from the part to be measured and press short the
GO button on either the probe or the instrument to start the measuring process.
The right arrow on the display or the left row of LED on the probe indicates the
distance of the probe from the object. The optimal measuring distance is
reached and the measurements can be registered as soon as the green light
on the probe comes on (in the middle). The two probe red LED’s on the right will
light up if the distance to the object is too great, and the two red LED’s on the
left if too close.
The lower or left row on the of LED’s on the probe indicates the energy of the
echo. In order to obtain maximum energy, the sensor should be held at 90° to
the object. The optimal energy is reached when on the probe the red LED on
the extreme right flashes.
During the measuring process measuring signals are constantly being taken and
analysed. The instrument stores five of these echoes. When the energy of the
actual echo is larger than the energy of the weakest echo, then this is
replaced. Therefore, it is automatically optimised.
Attention: Optimum measurement will be reached, when the echoes are at their
greatest. During measurement, the distance and the angle should be varied
slightly to make all 5 LED’s on the energy indicator light frequently (or the arrow
on the right display side is in the middle of the distance bar). If the right hand
LED does not light, you have achieved the best measurement position.