Table of Contents
Advertisement
SECTION 2. WEATHER STATION INSTALLATION
TABLE 2.7-1. Sensor Verification; Accessing CR10 Input Locations
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
should show LOG1. The sensor measurements
are stored in the CR10's Input Locations,
accessed through 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
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
12 hours.
2-14
Description
*
Battery Voltage
CR10 Temperature
**
Canister Moisture
Ambient Temperature
Ambient Temperature
Relative Humidity
1
Solar Radiation
Wind Speed
2
Wind Direction
Precipitation
***
Soil Temperature
*
0 and the display
*
6 Mode; refer to the
*
6 the A key may
o
Input
Units
Location
Volts
1
o
C
2
0-1000
3
o
C
4
o
F
5
%RH
6
2
kW/m
7
mph
8
degree
9
inches
10
o
F
11
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
***
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
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
Key
Display
5
:HH:MM:SS
*
A
05:XX
for
A
05:XXXX
Keyboard
Entry
*
6A
*
62A
*
63A
*
64A
*
65A
*
66A
*
67A
*
68A
*
69A
*
610A
*
611A
o
.
5 Mode
*
Description
Display current time
in hours, minutes,
and seconds
Display/enter year
Display/enter day of
year
A
05:HH:MM
Display/enter
hours:minutes in
military time
5
*
Advertisement
Table of Contents
