Main Unit; Operation And Display Area - SubSurface Instruments LD-18 Operation Manual

Digital noise reduction water leak detector
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2. Main unit

2-1 Operation and Display area

1
SENS. (sensitivity) : Sensitivity control dial
1
Use this dial for sensitivity setup out of the range of 00 to 40.
2
: Use this switch for saving minimum level value.
SAVE
Liquid crystal display : Displays a level bar, minimum level value, battery capacity, filter setup and others.
3
(notch filter) : Use this switch when it is wanted to cut the noise of commercial AC power supply.
4
NF
Alternate ON / OFF switch:
5
Use this switch in case optional pick-up sensor dedicated to valve / tap sound is used.
(Do not use this switch for ordinary road surface sound hearing work.)
6
: Backlight ON / OFF switch
LIGHT
7
: This switch permits check of saved data and waveform.
FILE
(noise reduction) : Use this switch when it is wanted to reduce accidental sound and noise.
8
NR
9
: Use this switch for setting the filter's low cut range. This switch can be also used for DOWN of a
LO
file screen or a graph display screen.
: Use this switch for setting the filter's high cut range. This switch can be also used for UP of a file
10
HI
screen or a graph display screen.
3
2
SAVE
LIGHT
FILE
Water Leak Detector
6
7
4
NF
NR
9
8
9
[Hardware]
5
10

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