Work surface in Location Mode
From left to right:
电磁波形：
Electromagnetic waveform
声音波形：
Sound waveform
声
_
磁时差光标：
Sound _ Magnetic difference cursor
当前声音带通：
Current sound band pass
带通
=4
：
band pass = 4
当前采样开关状态：
Current sampling switch state
采样
=
开：
Sampling = open
当前磁增益量：
Current amount of magnetic gain
磁增益
=50%: Magnetic gain = 50%
当前声增益量
: Current amount of sound gain
声增益
=50%: Sound gain= 50%
声磁时差毫秒值：
Sound _ Magnetic difference milliseconds
声音强度：
Sound intensity
电池电压：
Battery voltage
"Start-stop" key can "turn on" or "turn off" sampling.
When it’s in "off" state
: (displayed "sampling = Off" below), up or down arrow
key "↓" or "↑" is used to select the sound band-pass. There are four kinds of sound
band-pass, respectively, 200 Hz, 450 Hz, 800 Hz and 1500 Hz. For different
geological and cable media, there is a best sound band-pass, which you can choose to
use.
Left or right key "→" or "←" is used to move the sound magnetic difference
cursor. When you finish a sampling, to easy observation and analysis, so that the later
electromagnetic trigger sampling is no longer valid, then you should press
"Start-Stop" key. Then the bottom of the display, "sampling = Off", so that the
analysis of waveform will not be influenced by trigger, which means no new
waveform sampling. In this case, the left and right arrows are to move the sound
