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3.5
Connecting the antenna
Screw the stub antenna into the corresponding SMA plug located at the top of the ADT1 and tighten by hand only.
Make sure it is tight enough.
CAUTION:
Please only use the original accessories to prevent injuries and health risks. The Monopole antenna may have an ampli-
fication of maximum 1.04dBi in the relevant frequency range.
NOTE:
The antenna is provided with a seal. If you use other antennas or connectors, make sure that they are also equipped
with a seal.
3.6
Cable gland / level sensor connection
The cable gland is required to connect a level sensor. Feed the sensor cable through the cable gland and connect the
cable ends to the corresponding terminal strip. The ADT1 tube has a nut with the wrench width 15 to provide a counter
torque. The cable diameter must be in the range of 3.5 to 6.4 mm.
CAUTION:
After opening the ADT1 case, always make sure that the ADT1 case is still tight.
CAUTION:
The entire weight of the level sensor must be carried by the adapter socket. Make sure you tighten it well.
NOTE:
If a level sensor with a reference tube is used, the reference tube is simply inserted into the housing as shown in the
figure.
CAUTION:
For cable diameters in the range of 3.5 to 6.4 mm only
CAUTION:
The maximum cable length for the I
only a few meters (typically up to 3m).
The maximum cable length (typically max. 100 m) for the RS485 interface is limited by the voltage drop of the power
supply. This must be determined from the data sheet of the corresponding sensor (current consumption, line imped-
ance and min. supply voltage).
Version 05/2021
2
C interface is limited due to the datasheet of the respective sensor and is usually
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