ISCO 4230 - Flow Metering Inserts

4230 Flow Meter
Section 2 Programming
2-36
After the FLOW RATE UNITS menu has appeared, the next
menu is:
Then:
After you have entered the data point set the following will
appear:
UNITS, SAVE will also appear if you move the flashing cursor
with the right arrow key. USE will only appear after four points
have been entered. USE tells the flow meter that the set is com-
plete and can be used for the flow rate calculation.
Select EDIT POINT if you need to change either the level or the
flow value for a particular data point.
Select ADD POINT if you want to add another point to a data set.
CLEAR will erase an entire set of data points from the flow
meter's memory.
PRINT will make the flow meter print out the entire data set.
UNITS allows you to set or change the units of measure used in
the data set. Note that you can only set UNITS if the set is
empty, or you have cleared it. You cannot change the units once
you have entered data points into a set unless you clear it and
start over.
SAVE will save the data set as it is.
If you select either EDIT POINT or ADD POINT, the following
display will appear:
2.8.1 Flow Metering Inserts There is one more possible flow conversion for the 4230 Bubbler
Flow Meter. This option will appear as FLOW METERING
INSERTS. These devices are metal inserts for 6", 8", 10", and 12"
diameter round pipe sewers. The inserts form a primary mea-
suring device inside the pipe when they are placed. The inserts
are installed from street level to a maximum depth of 16 feet
with a handle made up of snap-fit extension pipes.
The inserts are sealed into the upstream pipe by inflating a
rubber bladder. Each insert is supplied with two circular weir
plates that provide either a round orifice or V-notch opening.
Once installed, the flow backs up behind the insert and a bubbler
tube in the bottom of the insert measures level.
SET X (1-4): (0) POINTS ENTERED
• ADD POINT • • (UNITS) •
SET 1 DATA POINT 1
ENTER: 0.00 (level units) 0.000 (units of volume)
SET X (1-4): XX (1-50) POINTS ENTERED
• (USE) • • EDIT POINT • • ADD POINT • • CLEAR • • PRINT •
SET X (1-4) DATA POINT XX (1-50)
ENTER: XX.XX (level units) XXX.XXX (volume)