18
Present sound level
Minimum sound level
3.8 The Memory Mode
The Memory Mode function is used to compare a series of
sequentially recorded measurements and can be used for pre-
locating or pinpointing leaks.
To activate the memory mode function, press the memory soft
Key on the control panel (Fig. 1). The LCD display
simultaneously switches to the memory mode screen and the first
memory measurement is activated. Pressing the mute button one
time after the unit is in memory mode will put the unit in stand-by
mode and store the current memory measurement. Pressing it a
second time brings the unit out of stand-by mode and activates the
next measurement. By repeating this process, up to nine values can
be stored, one after the other. When more than nine values are
measured, the first value will be deleted and all other values will be
shifted one position to the left. In this way, the last nine values are
always visible.
An individual memory measurement consists of a dual segment
analysis (DSA), showing the current total sound value (narrow
column) and the minimum leak sound value (wide column - Fig. 15).