Section 4 Installation; Location; Leveling The Rain Gauge - Hach 2458 Mode D'emploi

Section 4 Installation
DANGER
Only qualified personnel should conduct the installation tasks described in this section
of the manual.

4.1 Location

1. Install the rain gauge in a clear area away from buildings and trees which could block the
natural fall of the rain. Pick a location which is as level as possible and will assure a
representative sample of rainfall for the area.
2. The base plate can be mounted to any flat surface using the four mounting holes located
in the corners of the plate. Attach the mounting plate to the ground with small stakes or
bolts depending on the mounting surface.
Note: If the Remote Rain Logger System is being installed, route the cable from the Rain Gauge to the
place where the Remote Rain Logger housing will be located. The Remote Rain Logger housing may be
located 25 ft away from the Rain Gauge with the standard cable, or up to 125 ft away using the optional
100 ft extension cable.

4.2 Leveling the Rain Gauge

For accurate rainfall measurements, the rain gauge must be levelled using the internal bulls-
eye level located inside the gauge.
1. Remove the screen and rain gauge funnel. Be sure that no packing material is inside or
under the gauge and that the tipping bucket can move freely about the pivot point.
2. Using the three wing nuts located on the base, adjust the gauge so that the air bubble is
centered in the circle of the bulls-eye level.
If the Remote Rain Logger System is being installed, replace the screen and the rain gauge
funnel and go to Section
Figure 8 Inside the Rain Gauge
1
2
3
1. Sleeve, Rain Logger
2. Sensor, Tipping Bucket
3. Tipping Bucket
4.4 on page 14.
4. Rain Logger (installed)
5. Power ON Indicator
6. Level
4
5
6
Installation
Page 13