Hach 900 MAX - Manual (Page 127)

Appendix B
Page 125
8990apdx_pfeatures.fm Programming Features
Flow Totalizer
The Flow Totalizer consists of three numeric counters that keep track of the
total flow being measured. Two software totalizers are standard with a third
external mechanical totalizer as an option. The two software 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.
Modify Setup
Modify Setup selects a totalizer scaling factor and a flow unit of measure.
1. Highlight Modify Setup using the UP and DOWN . Press SELECT .
2. Set the Totalizer Scaling factor using the CHANGE CHOICE key. All three
totalizers are scaled with one of seven scaling factors: X1, X10, X100,
X1000, X10,000, X100,000 or X1,000,000. The selected scaling factor
always applies to all totalizers. Press
CHANGE CHOICE to cycle through
the available scaling choices.
3. Press ACCEPT to continue.
4. Set the Total Flow Units using the CHANGE CHOICE key to cycle through
the choices. Total Flow Units are independent of the flow units selected in
the Setup Menu. Flow units of measure include:
5. Press ACCEPT 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
• Acre-feet • Liters • Gallons
• Cubic Feet • Cubic Meters