Xylem YSI ProDSS, Руководство пользователя

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26
Operation
Auto Stable
→
Auto Stable
Auto Stable indicates when a measurement is stable. Sensors with Auto
Stable enabled will have
A
S
flash beside the measurement on the Run
screen.
A
S
will flash green when the measurement is stable.
Select a sensor to enable or disable Auto Stable. Set the stability
threshold parameters (
Figure 30 ).
The Auto Stable stability threshold can be set by percent of measurement
or in the units of measurement selected in the Sensor Display menu.
Enter the stability value, then select Use Percent or Use Meas. Units
( Figure 31 ).
This threshold is used to compare the last reading with the previous. The
smaller the number entered in % or units, the longer it will take for the
instrument to reach the auto stable criteria.
Example: For temperature in ° C, if unit threshold is set to 0.2 and the
temperature reading changes by more than 0.2 degrees,
A
S
will
continue to be red until the reading does not change by more
than 0.2
° C over the defined sample period and sample count.
Hold All Readings : After all sensors have reached their stability criteria,
the measurements will be held or ‘locked’ on the display. If disabled, the
sensor measurements will continue to change in real time.
Audio Enabled : An audio alert will sound when stability is reached.
Continuous Mode : The ProDSS will continuously check sensor values
against the stability criteria even after the sample period and sample
count have been met.
Log Samples : Logs the sample/s defined by the Sample Period to
memory.
Sample Period : Time interval between the sensor measurements
(sample) that are used to determine stability. Set the interval in seconds
(1 to 900).
Sample Count : Number of consecutive samples required for stability
(1 to 10).
Select Start Auto Stable to enable.
Figure 30 Auto Stable
Figure 31 Auto Stable stability threshold