
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 219
It is very important that the time set in the Sensor Timing Loop for the
sensor is greater than the maximum amount of time that the sensor requires
to collect data.
If the Sensor Timing Loop time is less than the time that the sensor requires
to collect data, the ZENO
®
-3200 will be unable to measure the sensor at the
rate specified in the Sensor Timing Loop.
12.1.6. Multiple Sensors and Timing
It is very important that sufficient time be allowed in the Sample Duration
for the ZENO
®
-3200 to read each Sensor Record at least once.
If the total time required by all Sensor Records exceeds the time set in the
Sample Duration, the ZENO
®
-3200 WILL NOT be able to read all of the
Sensor Records once in each Sample Interval!
When the ZENO
®
-3200 determines that there is insufficient time to read all of the configured Sensor
Records at least once, the ZENO
®
-3200 will warn the user to that effect.
12.1.7. Calculating The Total Time Required for The ZENO
®
-3200 To Measure All Sensor
Records
Use the following steps to calculate the total time required by the ZENO
®
-3200 to measure all of the
Sensor Records:
Add all of the times required for measurement (t
i
) required by each Sensor Record to calculate the
total time required to read each sensor at least once (T
Once
). If a Sensor Record defines an analog
sensor or a digital sensor, the time required for measurement must include any extra readings if the
Sample Count is greater than one.
The Sample Count is defined by Line Item #10 in the Sensor Menu.
254
If a Sensor Record defines a
serial sensor, the time required for measurement must include any extra retries defined in Line Item
#16 of the Sensor Menu.
255
254
Refer to Sections 10.3.1 and 10.3.2.
255
Refer to Section 10.3.5.
n
n
i
iOnce
ttttT
1
21
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