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Section 4
Page 71
Mechanical Totalizer
4. Press the CHANGE CHOICE soft key to select “Logged,” then press the
ACCEPT soft key.
5. Enter a 1-minute logging interval using the numeric keypad, then press
the
ACCEPT soft key.
6. Press the
CHANGE CHOICE soft key to cycle through the units of measure
until ppm is displayed. Press the
ACCEPT soft key.
7. Apply a voltage to the desired analog input which corresponds to 0 ppm
(or +1 V dc). Enter 0 ppm using the numeric keypad and then press the
ACCEPT soft key.
8. Apply a voltage to the same analog input that corresponds to 500 ppm or
+3 V dc. Enter 500 ppm using the numeric keypad and then press the
ACCEPT soft key to complete the analog channel setup.
4.3 Mechanical Totalizer
4.3.1 Programming the Mechanical Totalizer
The Mechanical Totalizer consists of two numeric counters that keep track
of the total flow being measured. The totalizers consist of a resettable
totalizer and a non-resettable totalizer. Both totalizers are set to zero upon
program start.
Scaling multipliers are provided to allow tailoring of the totalizer response to
meet the requirements of the application. Some applications with high flow
rates will require a high scaling factor, while low flow rates will require a low
scaling factor.
The scaling factor is displayed whenever a total flow number is displayed.
As indicated in the Status Screen below, the total flow is displayed as
“TOTAL (x1000): 465 gal.” Multiplying the displayed total flow by the scaling
factor (1000) gives an actual total flow of 465,000 gallons.
1. From the Main Menu, select
OPTIONS> ADVANCED OPTIONS > FLOW
TOTALIZER to display the Modify Setup, Reset, and View Total screen.
4.3.1.1 Modify Setup
Modify Setup selects a totalizer scaling factor and a flow unit of measure.
1. Highlight
MODIFY SETUP using the up and down arrow soft keys.
2. Press the
SELECT soft key to continue.
11:00 AM 21 - APR - 01 STATUS SCREEN
LEVEL: 8.688 in.
FLOW: 71.39 mgd
TOTAL (X1000): 465 gal
pH: 7.2 pH
BATTERY: 16.9 volts
RUNNING