Campbell cs215 Instruction Manual - 7. Installation
CS215 Temperature and Relative Humidity Probe
The black outer jacket of the cable is Santoprene
®
rubber. This
compound was chosen for its resistance to temperature extremes,
moisture, and UV degradation. However, this jacket will support
combustion in air. It is rated as slow burning when tested
according to U.L. 94 H.B. and will pass FMVSS302. Local fire
codes may preclude its use inside buildings.
NOTE
7. Installation
7.1 Siting
Sensors should be located over an open level area at least 9 m (EPA) in
diameter. The surface should be covered by short grass, or where grass does
not grow, the natural earth surface. Sensors should be located at a distance of
at least four times the height of any nearby obstruction, and at least 30 m
(EPA) from large paved areas. Sensors should be protected from thermal
radiation, and adequately ventilated.
Standard measurement heights:
1.5 m (AASC)
1.25 – 2.0 m (WMO)
2.0 m (EPA)
See Section 10 for a list of references that discuss temperature and relative
humidity sensors.
7.2 Assembly and Mounting
The CS215 must be housed inside a radiation shield when used in the field.
Typically, the 41303-5 6-plate shield is used. This radiation shield has a
U-bolt for attaching the shield to tripod mast / tower leg (see Figure 4-1 in
Section 4, Quickstart), or CM200 series crossarm (see Figure 4-2 in Section 4,
Quickstart). The radiation shield ships with the U-bolt configured for attaching
the shield to a vertical pipe. Move the U-bolt to the other set of holes to attach
the shield it to a crossarm.
The probe will also fit into the 41003-5 10-plate radiation shield. The 41003-5
requires the 18.5 adapter (CSI PN 6637). For this shield, tighten the sensor
grip around the probe where it best matches the size of the grip. (The probe
will also fit directly into most of the R.M. Young shields, where the probe
enters the shield from the top, pointing downwards.)
When removing the probe from the shield, withdraw it from
the shield carefully, as the foam filter is easily broken if
bent or knocked.
CAUTION
For other applications the CS215 can be installed in any orientation. Install it
away from obvious sources of heat, including solar radiation.
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