WEATHERPAK
®
-2000 USER
MANUAL
Coastal Environmental Systems (206) 682-6048
- 7 -
Changing the data collection schedule
A wide range of sensor sampling schemes are available from the Weatherpak. Examples are:
A.
the sensors can be sampled continuously, with no gaps;
B.
the Weatherpak can take samples from ten past until half past each hour.
The following time line illustrates these schemes -- a period of 3 hours is shown. The light grey areas indicate that
sensors are being sampled.
The Weatherpak uses the same data collection schedule for all of the sensors. For the two cases listed above, you
would set up the following schemes within the Sample Period Menu:
A.
start a sampling period each hour, minute or second, and let that period last one hour, minute or second;
B.
start a sampling period each hour, at 10 minutes past the hour, and let that period last 20 minutes.
Enter
S
from the User Menu to enter the
SAMPLE
Period Menu.
SAMPLE PERIOD MENU
(Cn/m) Change Item n To Value m (Q) Quit
(E) Save Settings To EEPROM (H) Help
(U) User Menu
Item 1: 3600 (Sample Interval Time in seconds)
Item 2: 1200 (Sample Duration Time in seconds)
Item 3: 600 (Sample Time Offset in seconds)
The three variables are as follows:
•
the sample interval time is the time elapsing between the start of successive sampling periods (i.e., one hour or
3600 seconds in case B above);
•
the sample duration time is the time for which the sampling actually takes place within each sample interval
(i.e., 20 minutes or 1200 seconds in case B above);
•
the sample time offset defines the time at which the sampling begins, relative to a round number of sampling
periods -- 10 minutes in case B above.
Sample period settings
Line
Quantity
Values available
1 Sample
interval
T
int
(seconds)
1 to 86400 (24 hours)
2
Sample duration time
T
dur
(seconds)
1 to
T
int
3
Sample time offset
T
off
0
to
T
int
-
T
dur
0:00 1:00
Time line
2:00 3:00
A
B