4230 Flow Meter
Section 2 Programming
2-52
If you press the right arrow key several times, the following
times will appear:
The intervals above are the periods of time over which the
rainfall occurs. The amount of rain entered in the previous step
and detected by the rain gauge must fall during the time interval
chosen from this menu before the flow meter recognizes the event
as a storm.
The next menu defines the interval that must pass between
storm events.
If you select CONDITIONAL for alarm dialout, the following will
appear:
(TEMPERATURE), (RAINFALL), (YSI pH), (YSI D.O.), (YSI
CONDUCTIVITY), and (YSI TEMP) may also appear. As men-
tioned previously, some of these menu options may not appear
depending on selections you made earlier in the program. At
least one of the options will be available to you.
D.O., pH, TEMPERATURE, and RAINFALL all require acti-
vation in step 1 and connection of the appropriate sensor to the
flow meter. D.O. and pH will never appear together, as only one
can be used at a time. When you have selected the condition you
want, the display will advance to the following:
For these conditions, you enter an amount, which if exceeded
(GREATER THAN), or if dropped below (LESS THAN), or if
changed too quickly (RATE OF CHANGE), will activate the
alarm dialout. For RATE OF CHANGE, you enter two values:
amount and time interval over which change occurs. Then the
display will advance to the following:
As described previously for sampler enabling, this step allows
you to combine conditions to produce an alarm dialout signal.
Select DONE if you need only one condition to trigger the alarm.
RAINFALL TIME PERIOD
• 6 HR • • 8 HR • • 12 HR • • 24 HR • • 48 HR • • 72 HR •
TIME SINCE LAST RAINFALL
DAYS: X (allowable entry of 1-7)
CONDITION
• (LEVEL) • • (FLOW RATE) • • (D.O.) • • (pH) •
CONDITION
• GREATER THAN • • LESS THAN • • RATE OF CHANGE •
SELECT OPERATOR
• DONE • • OR • • AND •
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