Operating Instructions (16461)
BLUESONIC
Wilh. Lambrecht GmbH Germany
9
7.1
Supply Voltage
The supply voltage for
BLUESONIC
is 24 VDC ± 10 %. The power supply unit used must be
approved for operation with equipment of protection class III (SELV).
7.2
RS422 Interface
The equipment has an electrically isolated RS422 interface.
The RS422 interface is designed as for TALKER mode only.
7.3
Interface circuits
2 interface circuits with a range of 4…20 mA are optional provided for analog data
transmission.
The scaling of the outputs is 0…65 m/s
4…20 mA (channel A) for wind speed and
0…360°
4…20 mA (channel B). Other scalings of the output are available on request.
The maximum load on the current output is 300
Ω
.
8
Setting to work
After the equipment has been installed and connected correctly, the sensor begins
autonomously to take measurements.
Attention must be paid to the following:
•
The correct function of the device should be checked on site by a measurement request.
•
The device must be aligned to the North in order to ensure correct wind measurement.
9
Factory setting sensor heating
The
BLUESONIC
features 2 heating levels for keeping the sensor free from snow and ice. One is
integrated in the cover, the other one in the ultrasound transmitters (bottom).
9.1
Heating mode
If the temperature of the housing is below +2 °C the heating turns on. If temperature of the
housing is exceeding >+7 °C the heating turns off.
9.2
External heating control system
The heating can be controlled externally by the control line. If the control line is short-
circuited, e. g. by a potential free alarm contact, the heating will be deactivated. If the control
line will be left open, the heating will run in automatic mode as described in chapter 9.1.
9.3
Heating output
Full heating output approx. 240 W (140 W cover + 100 W bottom)
.
