CS505 FUEL MOISTURE SENSOR
2
Current usage: 70 mA active/ 10 uA
quiescent
Output signal:
±
2.5 V square wave with an
output frequency of
approximately 600 to 1500
Hz.
Dimensions:
sensor:
1/2 inch dowel, 20 inch long
electronics:
4 x 2.5 x 0.75 inches
*The above accuracy is a static accuracy
derived at slow changing conditions with
experimental data.
3. INSTALLATION
As shown in Figure 1 and Figure 2, both the
CS505 and CS205 install on the 10974
mounting stake. The probes install horizontally
and should point south in the northern
hemisphere and north in the southern. The
rack is mounted above a representative forest-
floor duff layer. The stake is carefully
hammered into the ground so that it is vertical.
Don’t hammer on the spot-welded clips that
hold the CS505 electronics. Once the stake is
installed, insert the CS505 electronics into the
two spring clips. The fuel moisture sensor (part
number 10824) installs on the CS505
electronics with the supplied Phillips-head
screws. The CS205 fuel temperature stick is
inserted into the mounting stake’s compression
fitting. The 107 temperature probe is then
inserted into the CS205 stick. Tighten the
compression fitting so that it compresses the
split wood and snugly holds the 107 probe.
The mounting stake ships with a package of 12
ultraviolet light resistant cable ties. The
mounting stake has five holes punched along
the edge of the shaft. There are two pairs of
holes higher and one single hole lower on the
shaft. When the stake is inserted into the
ground to a depth level with the lower hole, the
probes are at 12 inches or about 30 centimeters
above the ground surface. The two upper pairs
of holes are used to attach two tie wraps per
cable—one pair for both the CS505 and
CS205/107.
FIGURE 1. Exploded View of CS505 and CS205 Mounting
FIGURE 2. CS505 Installation Options Over Forest Floor, 30cm Over Duff Layer
