Sib Geofiz Pribor Ltd
The permissible limits of each parameter variation recalculated having regard to the
specified string configuration and ambient temperature are displayed in square brackets
for reference use. In this case, [>10] means that the leakage resistance should be more
than 10 MΩ. To terminate the test, press the START-STOP button, after which the
“Tests sequence” dialogue menu will be displayed again.
4.4.3.4. Resistance
This parameter can take values “Off” and “On”. The parameter value can be changed
using the LEFT and RIGHT arrows.
Pressing the START-STOP button can start continuous performance of the test group
including the resistance test, the impedance test and the leakage test, without writing
results into memory. Tests are conducted sequentially, one after another, in a ring. The
results of
enabled tests only
are displayed (see Fig. 11). The permissible limits of each
parameter variation recalculated having regard to the specified string configuration and
ambient temperature are displayed in square brackets for reference use. In this case,
[268-296] means that the geophone coil resistance should be no less than 268 Ohms
and no more than 296 Ohms. To terminate the test, press the START-STOP button,
after which the “Tests sequence” dialogue menu will be displayed again.
4.4.3.5. Natural frequency
This parameter can take values “Off” and “On”. The parameter value can be changed
using the LEFT and RIGHT arrows.
Pressing the START-STOP button can start continuous performance of the test group
including the natural frequency test, the damping test and the sensitivity test, without
writing results into memory. Tests are conducted sequentially, one after another, in a
ring. The results of
enabled tests only
are displayed (see Fig. 12).
Figure 12
The permissible limits of each parameter variation recalculated having regard to the
specified string configuration and ambient temperature are displayed in square brackets
for reference use. In this case, [9.5-10.5] means that the natural frequency should be
no less than 9.5 Hz and no more than 10.5 Hz. To terminate the test, press the START-
STOP button, after which the “Tests sequence” dialogue menu will be displayed again.
4.4.3.6. Damping
This parameter can take values “Off” and “On”. The parameter value can be changed
using the LEFT and RIGHT arrows.
Pressing the START-STOP button can start continuous performance of the test group
including the natural frequency test, the damping test and the sensitivity test, without
writing results into memory. Tests are conducted sequentially, one after another, in a
ring. The results of
enabled tests
only
are displayed (see Fig. 12).
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