Sierra INNOVA-FLO 220 - Manual (Page 43)

Chapter 3 Operation Series 220/221 Instruction Manual
Totalizer Menu
Password
ENTER
Use
keys to access menus Totalizer
Menu
Totaling
Inactive
Mass
Volume
ENTER
Run Mode
(unit)/Pulse
xxxx
Reset Total?
YES or NO
Example:
Maximum flowrate = 600 gallons per minute
(600 gallons per minute = 10 gallons per second)
If unit per pulse is set to 600 gallons per pulse,
the totalizer will pulse once every minute.
If unit per pulse is set to 10 gallons per pulse,
the totalizer will pulse once every second.
Use the Totalizer Menu to configure and monitor the totalizer. The totalizer output is a 50
millisecond (.05 second) positive pulse (relay closed for 50 milliseconds). The totalizer
cannot operate faster than one pulse every 100 millisecond (.1 second). A good rule to follow
is to set the unit per pulse value equal to the maximum flow in the same units per second.
This will limit the pulse to no faster than one pulse every second.
Example for Setting the Totalizer
The following shows how to set the totalizer to track volumetric total gallons. (All outputs are disabled
while using the Setup Menus.)
First, set the desired units of measurement:
1. Use ÕÖ keys to move to the Units Menu (see to page 3-8).
2. Press Ø key until Volume Flow Unit appears. Press
ENTER .
3. Press Ø key until gal appears in the numerator. Press Ö key to move the underline cursor to the
denominator. Press the Ø key until min appears in the denominator. Press ENTER to select.
4. Press × key until Units Menu appears.
Second, set the pulse output:
1. Use ÕÖ keys to move to the Totalizer Menu.
2. Press the Ø key until Totaling appears.
3. Press
ENTER and press the Ø key to select Volume. Press ENTER .
4. Press Ø key to set the gallons per pulse. Press ENTER and use ЧШХЦ keys to set the pulse
value equal to the maximum flow in the same units per second. This will limit the frequency to
1 Hz. Press
ENTER .
5. To reset the totalizer, press Ø key until Reset Total? appears. Press ENTER and the Ø key to reset
the totalizer if desired. Press ENTER.
6. Press the EXIT key and answer YES to permanently save your changes.
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