Kipp & Zonen LAS, Instruction Manual

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Figure 14: The steel enclosure is fixed to the mast opposite of the solar panel that is facing south (or
north on southern hemisphere) and mounted as low as possible in order to leave enough flexibility for the
lower temperature sensor. Finally, the wires are led into the enclosure via the cable ducts.
Important: do not place the solar panel directly beneath the radiation sensor. Reflected solar
radiation from the solar panel to the radiation sensor will significantly disturb the
measurements.
Once the enclosure and the solar panel are properly fixed and all sensor cables are connected, the
battery can be placed inside the enclosure. Connect the battery-power cables of the solar controller to
the battery poles.
Ensure correct polarity (brown is + and blue is - )!!! The data logger will
automatically start measuring.
Once again, check that everything is properly fixed in the mast (i.e. the levelling of the net radiation
sensor, the alignment/orientation of the antenna), preferably using a small portable ladder. Verify that
the sensors and the RF link are working properly (see section 5. OPERATION and APPENDIX 6 –
INSPECTION PROCEDURE) including the date and time setting of the COMBILOG data loggers. To
change date and time go to APPENDIX 7 – SETTING DATE / TIME COMBILOG. In case you have
multiple COMBILOG data loggers, check them all.
When the system is working properly roll up redundant signal, antenna and power cables and fix them
to the mast (between the solar panel and the enclosure) using cable ties. Do not lay the cables on the
ground as insects and small animals might damage the cables.
As final step we recommend to fill in the Installation Form of the
LAS -system (see APPENDIX 5 –
INSTALLATION FORM). This Installation Form will be used to configure the EVATION software (see
Section 4.4 EVATION DATA PROCESSING SOFTWARE).
Site latitude
[
o
]
Tilt angle
[
o
]
0 – 10 10
11 – 20 La 5
21 – 45 La 10
46 – 65 La 15
> 65 80
Tilt angle
Solar panel
Ground