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If the loop's impedance is too high, the bottommost of the 4 check lamps will be lit red. If it is too low, the lamp
nd
above (2
from bottom) will be lit red. The signal strength is appropriate, if the 3rd lamp from bottom will be lit
green.
The first check lamp indicates whether the oscillator is supplied with voltage.
After the first start, the oscillator box does not require any maintenance in normal operation. In battery operation, it
is necessary to change the batteries in due time. It is recommended to use batteries with a minimum capacity of
160 Ah in order to guarantee uninterrupted operation of one week. The actual operating time depends on local
conditions, that is, on the loop length and/or on the current actually consumed by the oscillator box.
Links/
left
In the steering antennas, electric coils are installed which are able to detect lines of electric flux in horizontal and
vertical direction to the ground – caused by the current passing the below ground conductor. As can be seen from
the above sketch, the direction of the voltage induced in a spool changes only when the antenna moves from the
left to the right side and vice versa of the below ground cable. Subsequently these signals are processed in the so-
called track unit and they are transmitted to the control centre of the system which on the other hand emits a
control signal to the corresponding tower's motor if necessary. The steering antennas are connected by a 4-poles
standard plug.
steering antenna
The steering antennas are connected to the track unit at bushes "ANT1" and "ANT2" whereby "ANT1" is provided
for the front steering antenna (seen in travel direction "Forward").
The track unit is connected to the control centre via a 5-poles connector plug "BUS1".
The "PWR RS232" interface serves for communication with the PC for configuration settings. For daily operation,
this connection is not used. The track unit must not and/or need not be configured subsequently because it is
supplied in preset condition.
26
Magnetfeld /
magnetic field
Lenkantenne/
steering antenna
0
Lenkantenne/
steering antenna
Untergrundkabel /
buried cable
Lenkantenne/
steering antenna
Operating Manual for BAUER LINESTAR 9000 with hose feed
Rechts/
right
track unit
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