
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 217
Timing is an ever-present parameter that must be taken into account
throughout any ZENO
®
-3200 configuration.
As stated in Section 3.1.3, all data collection done by the ZENO
®
-3200 is based upon regular timed
intervals controlled by the ZENO
®
-3200's internal clock. This regular timed interval is called the Sample
Interval.
The Sample Interval defines the overall, recurring period of time during
which all data collection, processing, data logging, and transmission occurs.
Each Sample Interval is defined by three parameters accessible in the Sample Period Menu (accessible
from the User Menu):
The Sample Interval Time defines the length of each complete Sample Interval or the time between
successive Sample Intervals.
The Sample Duration Time defines the portion of the Sample Interval Time when the ZENO
®
-3200
actually performs all data collection, processing, data logging and transmission.
The Sample Offset Time defines a time at the beginning of the Sample Interval that delays the start
of the Sample Duration Time.
The following screen shows the an example set up of the three parameters in the Sample Period Menu:
SAMPLE PERIOD MENU
(Cn/m) Change Item n To Value m (Q) Quit
(E) Save Parameters To EEPROM (H) Help
(U) User Menu
Item 1: 30 (Sample Interval Time)
Item 2: 28 (Sample Duration Time)
Item 3: 2 (Sample Time Offset)
>
In addition to the Sample Interval, each sensor defined in the Sensor Menu requires an associated Sensor
Timing Loop.
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Refer to Section 10.3.7.
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