Campbell Scientific CS700 Tipping Bucket Rain Gage and CS700H Heated Rain Gage - Manual (Page 9)

CS700 and CS700H Rain Gage
General data
Width:
2.4 in. (60 mm)
Height: 5.1 in. (130 mm)
Depth: 4.9 in. (125 mm)
Weight: 2.4 lb. (1.1 kg)
Efficiency: > 92.5% (for 230 Vac and
nominal values)
Ambient temperature
(operation):
-25°C to 70°C (> 60°C
derating)
Ambient temperature
(storage/transport):
-40°C to 85°C
Max. permissible relative
humidity (operation):
95% (at 25°C, no
condensation)
Additional specifications are provided in Phoenix Contact’s
manual for the Quint-PS/1AC/24DC/10. NOTE
3. Installation
The 260-953 Alter-type Wind Screen’s siting information and
installation procedure are provided in our 260-953 manual. NOTE
3.1 Location
The CS700 and CS700H should be mounted in a relatively level spot which is
representative of the surrounding area. The ground surface around the rain
gage should be natural vegetation or gravel. The gage should not be installed
over a paved or concrete surface.
For accurate measurements, the CS700 and CS700H must be placed away
from objects that obstruct wind. The minimum distance should be at least 2 to
4 times the height of the obstruction.
3.2 Mounting
The CS700 and CS700H are designed to mount on a flat surface. Three
equally spaced mounting pads are provided. The mounting pads are pre-drilled
for three 3/8” (M8) bolts on a 9.21” (234 mm) diameter bolt circle.
The CM240 mounting bracket is available from Campbell Scientific for
installing the CS700 and CS700H (see Figure 3-1). The CM240 base helps
level the rain gage, ensuring a more accurate measurement. The base may be
attached to a CM300-Series Mounting Pole or to a user-supplied 1.5 in. IPS
(1.9 in. OD) unthreaded pipe. The pipe should be long enough to place the
gage's orifice at a one-meter height. The rain gage should be high enough to
be above the average snow depth. The pole or pipe can be placed directly into
a concrete foundation (see Figure 3-2), or attached to a concrete foundation
using J-bolts or self-supporting with legs (see Figure 3-3). A concrete pad is
recommended, but it should not be installed over large paved or concrete
surface.
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