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Description of the programming switches
Programming switches SW 1 and SW 2
The frequency range of the loop can be roughly set via the programming switches SW 1
and SW 2. The precise frequency is set automatically on self-adjustment of the loop. The
following applies:
Programming switches SW 3 and SW 4
The sensitivity of the detector can be set via the programming switches SW 3 and SW 4.
The following applies:
Programming switch SW 5
The programming switch SW 5 allows the sensitivity of the loop to be increased. In the
"ON" position, the sensitivity on detecting a vehicle in the loop field is at maximum. As
soon as the vehicle leaves the loop field, the sensitivity returns to the pre-set value.
Programming switch SW 6
In the "ON" position, the detector compensates every change in the surroundings when
a vehicle occupies the loop field. This means that the compensating processes and the drift
of the loop inductance are compensated. In this way, a vehicle occupying the loop field is
still detected even hours later.
Due to changing environmental conditions, the function described above cannot be
guaranteed in every installation situation. For this reason, all dangers which could arise
by "losing" a vehicle on the loop field, must be prevented from the outset.
Programming switch SW 7
The programming switch SW 7 allows the function of the "K1" (impulse) relay to be set. In
the "OFF" position, an impulse is generated as soon as a vehicle is detected on the loop; in
the "ON" position, an impulse is given after the vehicle has vacated the loop.
2. Description of function
OFF OFF High
OFF ON
ON OFF
ON ON Low
SW 1 SW 2 frequency
OFF OFF High
OFF ON
ON OFF
ON ON Low
SW 3 SW 4 Sensitivity
