Lambrecht rain[e]H3, User Manual

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User Manual
Precipitation Sensor rain[e]H3 with Ethernet
Id-No. 00.15184.540 020
rain[e]H3 Precipitation Sensor Manual
7 Installation
7.1 Site Selection
Subsoil conditions
To minimise the entry of splash water it is recommended that sites with hard ground like concrete are avoided.
Place the precipitation sensor on grass or other soft ground instead.
Condition of the surrounding
In general the precipitation sensor should not been placed on slopes or roofs. We recommend installation of the
precipitation sensor at a distance of at least 2 m from any obstacle or the obstacle height (above the gauge’s
orifice), as defined by the German Meteorological Service (DWD) or twice the obstacle height as defined by the
WMO and preferably at a distance of four times the obstacle height.
Vegetation around the site should be clipped regularly to the height of the precipitation sensor to prevent them
from disturbing the measurement and at the same time reduce wind influence.
An additional minimum distance to high-voltage power lines and cell towers is not necessary.
Accuracy of the housing alignment
The housing can be aligned with an integrated spirit level at ±0,7° (blister within the edge of the ring marking). This
accuracy is sufficient for the rain[e]H3 . The additional error at 3° inclination is approx. 0.14 %.
7.2 Mounting
Necessary tools
► Wrench (13 mm)
► Allen key (6 mm)
► Slotted screwdriver (approx. 2.5 blade width)
• Unpack the device.
• Take the box of the collecting vessel out of the funnel of the
rain[e]H3
.
• Check the collecting vessel for transport damage and put it back into its box for later installation.
• Place the sensor on a tube or pole
with an outer diameter of 60 mm. A
metallic extension tube with a mini-
mum length of 100 mm is recommend-
ed if a wooden pole is used. Use a
Wrench (13 mm) to tighten the screws
in the mounting pedestal evenly.
Do not damage the measuring
edge.
• To improve the operating security in
lightning-prone areas it is suggested that
the sensor be earthed via the integrated
earthing screw of the rain[e]H3 . The
illustration shows the steps of installation
of an earthing connection with a cable
clip and earthing screws onto the sensor.
The other end of the cable should be
connected to a ground nail.
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