Page
11
RG2
Step 19.
Orient the body of the wind vane
19.1.
Ensure that the hub lock screw is in place on the hub.
In this state the wind vane cannot rotate and, if read, the sensor should
indicate 180 degrees, i.e. south.
19.2.
Rotate the body of the sensor until the counterweight and the black
arrow on the housing actually point to true south (and the wind vane tail
points to true north).
19.3.
Tighten the two vertically paired grub screws on the cross arm
adapter and then remove the hub lock screw - to release the wind vane and
allow it to rotate freely.
19.4.
Attach the sensor cable to the socket on the housing.
Step 20.
Mount the canopy
, or
optional M2 enclosure,
at a convenient height
on the mast using the
two U bolts (29). These
are supplied with a
protective spiral plastic
strip (28) and two strips
of plastic channel (27).
The canopy is designed to protect the logger from the
heat of the sun, so mount it facing away from the equator (north in the
northern hemisphere, on the south side in the southern hemisphere).
Step 21.
Mount the logger
. Remove the logger lid
and insert the four M4 bolts to protrude out
of the hole at the back of the logger.
Hold these in with a screwdriver and bolt
on the 4xM4x15mm stand offs. These
allow air currents flow between the canopy
and the back of the logger and so help it
stay cool in hot weather.
Step 22.
Install raingauge RG2.
Locate it away from air flow
obstructions and fix it horizontally on
the ground the mounting plate and
stakes provided
Step 23.
Install soil temperature sensor ST1
Bury it along with about 1 m of cable to
isolate it from the direct heat of the sun.
ST1
