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Operation
10.4 Sensitivity settings
In order to cover a measuring range from the smallest leaks (0.1 l / min) up to large leaks,
the LD 500 has different measuring sensitivity levels:
10 – 70dB
20 – 80dB
30 – 90dB
40 – 100dB
Note: The measurement sensitivity level 0 -60dB (most sensitive setting) can only be used in manual
mode. The mode can be changed by pressing the "Mode Switch button".
HiSn -- manual sensitivity mode
Auto -- automatic sensitivity mode
The individual stages can be selected in manual mode by pressing the "Sensitivity" setting button. The
steps are changed to the next step each time the button is pressed.
The„Auto"
for the Testo Sensor LD pro. However, this requires a min. measuring time of 2 seconds.
10.5 Laser On/Off
The laser pointer can only be switched on or off via the laser on / off button
the membrane keypad). When switched on, the display shows a laser warning symbol.
Please note the warnings for laser operation!
Avoid direct / indirect (via reflexion) irradiation of the eyes in humans and animals!
Testo Sensor LD pro V2.00
0 – 60dB
setting allows you to automatically switch to the preferred sensitivity level
in the display (not via
Laser „On" Icon
Page 20 of 48
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