SENSYS SBL10, Руководство пользователя, Страница: 15 / 69

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SBL10 15 / 69
Version 1.27
When using Mode 3 make sure to keep moving the SBL10 unit at all time during the
survey. Otherwise the reading of the objects to be measured will be compensated and
therefore objects may remain undetected.
Mode 4 :
Compass Mode: The different cardinal points can be determined in this mode.
Measurement Ranges 4.3
The readings can be displayed in various measurement ranges, which can be set by the operator.
The setting of the measurement range depends on the object that has to be located. The smaller or
the deeper the object is to be found, the smaller is the expected reading. The smaller the reading,
the smaller the selected measurement range has to be. The SBL10 unit features 9 different, linear
measurement ranges. The operator can choose a measurement range between 3 and 20,000 nT
(full-scale). The required measurement range can be set by using the rotary switch (7) of the
control and display unit.
An overview of the available measurement ranges is given below.
Measurement range for mode 1, 2 and 3:
Measurement Range
(Sensitivity = 1 graduation mark)
Full Scale
(10 graduation marks)
0.3 3 nT
1 10 nT
3 30 nT
10 100 nT
30 300 nT
100 1,000 nT
300 3,000 nT
1,000 10,000 nT
3,000 30,000 nT
The measurement values of the probe are displayed by the pointer movement in the display unit.
The scale span varies from 0 up to ±10 graduation marks. According to the set measurement range
(0.3 up to 3,000), the operator can calculate the measured value in nT. To do so, the displayed
interval needs to be multiplied by the set measurement range.
Example :
Displayed Value : 5
Set Measurement Range: 100
Reading Value in nT: 5
•
100 = 500 nT