Sib Geofiz Pribor Ltd
the natural frequency of the geophone moving system, Hz;
the permissible deviation of the natural frequency from the rated value as a
percentage;
the sensitivity of the geophone, V·m
-1
·s;
the permissible deviation of the sensitivity from the rated value as a percentage;
the geophone damping;
the permissible deviation of the damping from the rated value as a percentage;
the maximum permissible harmonic distortion of a geophone as a percentage;
the frequency in Hertz, at which the harmonic distortion is measured;
the peak-to-peak amplitude of displacement of the geophone moving mass, mm;
the mass of the geophone movable system, g;
the temperature at which geophone parameters are normalized, degrees Celsius.
Navigation through the list is performed by pressing the UP and DOWN buttons. The
active line of the list is marked by the pointer in the leftmost position of the line.
Navigation through the list of geophone parameters from the read-only library is
disabled, since they are not editable.
Editing parameters, except for their name, can be performed by one of the following
methods:
pressing the LEFT and RIGHT buttons decrements or increments the parameter by
one step, respectively;
when the ENTER button is pressed, the blinking cursor appears in the empty bottom
line of screen. Enter the desired number using “0”…“9” and “.” buttons. The LEFT
button deletes the last entered character. End the data input by pressing the ENTER
button. Pressing ESC in the entry process cancels modification of a current
parameter.
To enter a new geophone name, place the pointer opposite the name-containing line
and press ENTER. A blinking cursor will appear in the empty bottom line on the screen.
Using alphanumeric buttons, enter the new name. Once entry is completed, press the
ENTER button. Pressing the ESC button cancels the entry. As alphanumeric buttons
are pressed, characters will be subsequently echoed in the current position of the line
(see the list below). A character is secured in the current character location upon
pressing another button of after a two-second pause. The list of characters assigned to
buttons includes the following:
‘.’ — only ‘.’ character;
‘1’ — ‘1 space’;
‘2’ — ‘2 A B C’;
‘3’ — ‘3 D E F’;
‘4’ — ‘4 G H I’;
‘5’ — ‘5 J K L’;
‘6’ — ‘6 M N O’;
‘7’ — ‘7 P Q R S’;
‘8’ — ‘8 T U V’;
‘9’ — ‘9 W X Y Z’;
‘0’ — ‘0 - _ +’.
Once editing is completed, press the MEMORY button to save changes.
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