SECTION 2. WEATHER STATION INSTALLATION
2-14
TABLE 2.7-1. Sensor Verification; Accessing CR10 Input Locations
Input
Keyboard
Description
Units
Location
Entry
Battery Voltage
*
Volts
1
*
6A
CR10 Temperature
o
C
2
*
62A
Canister Moisture
**
0-1000
3
*
63A
Ambient Temperature
o
C
4
*
64A
Ambient Temperature
o
F
5
*
65A
Relative Humidity
%RH
6
*
66A
Solar Radiation
1
kW/m
2
7
*
67A
Wind Speed
mph
8
*
68A
Wind Direction
2
degree
9
*
69A
Precipitation
inches
10
*
610A
Soil Temperature
***
o
F
11
*
611A
2.7 SENSOR VERIFICATION USING
THE CR10KD KEYBOARD DISPLAY
The following steps allow verification of the
sensor measurements performed every 10
seconds.
Connect the CR10KD Keyboard Display to the
serial I/O connector in the crossarm (refer to
Figure 2.6-4) using the Model SC12 cable.
Upon connection, the display activates, showing
meaningless numbers. Enter
*
0 and the display
should show LOG1. The sensor measurements
are stored in the CR10's Input Locations,
accessed through the
*
6 Mode; refer to the
keyboard entry column in Table 2.7-1. If you
get lost or make a mistake, start over by
entering
*
6. Once you are in
*
6 the A key may
be used to advance through the locations and
the B key may be used to backup through the
locations.
*
NOTE:
Due to reverse polarity protection
diodes in the circuit, the battery voltage
measurement is approximately .7 volts
lower than the actual battery voltage.
Minimum operating voltage for the CR10 is
9.6 V.
**
WARNING:
Readings above 200 indicate
high humidity inside the canister. The
canister must be opened and dried, and the
desiccant reactivated by heating at 250
o
for
12 hours.
1. Typical values should be between 300
(overcast) and 1000 (bright sunshine).
2. To check the wind vane, point it to the east
and compare new reading to 90
o
.
***
NOTE:
Soil temperature readings are
made only if the CR10 User Flag #1 is set
high. Refer to Section 2.9 for details.
2.8 SETTING THE CLOCK WITH THE
CR10KD KEYBOARD DISPLAY
To set the year, day of year, and time, enter
*
5
and advance the display to the appropriate
window (refer to Table 2.8). Key in the desired
value and enter it by pressing the A key. When
a new value for hours and minutes is entered,
the seconds are set to zero and current time is
again displayed. Figure 2.8 shows a day of year
calendar.
TABLE 2.8. Sequence of Time Parameters in
*
5 Mode
Key
Display
Description
*
5
:HH:MM:SS
Display current time
in hours, minutes,
and seconds
A
05:XX
Display/enter year
A
05:XXXX
Display/enter day of
year
A
05:HH:MM
Display/enter
hours:minutes in
military time
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Страница 18: ...SECTION 2 WEATHER STATION INSTALLATION 2 8 FIGURE 2 5 2 Battery AC Charging Connections...
Страница 20: ...SECTION 2 WEATHER STATION INSTALLATION 2 10 FIGURE 2 6 1 RAD Modem Connections...
Страница 21: ...SECTION 2 WEATHER STATION INSTALLATION 2 11 FIGURE 2 6 2 Phone Modem Connections...
Страница 22: ...SECTION 2 WEATHER STATION INSTALLATION 2 12 FIGURE 2 6 3 012 Weather Station with Radio Antenna...
Страница 23: ...SECTION 2 WEATHER STATION INSTALLATION 2 13 FIGURE 2 6 4 012 Weather Station with Storage Module...