4220 Flow Meter
Section 2 Programming
2-3
Print Program - Pressing this key will make the flow meter
print out a complete list of the current program choices retained
in memory.
Print Report - One function of the flow meter is to print reports
of all recorded activity at regular intervals. The contents of these
reports are defined in step 1. If you set up the report generator,
you can have a report printed anytime by pressing this key. The
report will cover the time from the last scheduled report up to
when you press this key.
The flow meter will print its next report at the next scheduled
time. Note that if power fails for five minutes or more, the flow
meter will print a report when power is restored that will cover
the interval between the last report and the time that the power
failed. The next report will cover the time from the power failure
to next scheduled report time.
Chart Advance - Pressing this key causes the paper chart to
advance through the printer at the fastest possible speed.
Nothing will be printed while you are holding this key.
Chart Reroll - It is possible to unroll the chart from the take-up
roll on the flow meter by pulling it out with your hands. Pressing
this key lets you rewind the chart onto the take-up roll.
Number keys - These keys let you enter numeric values into the
flow meter when programming.
Decimal Point - This key lets you enter a decimal point into a
numeric value when programming. On flow meters equipped
with the optional modem only, you can use this character as a
comma (delay) when entering dialout numbers.
Arrow keys - These keys, referred to as the left and right
arrow keys let you select a programming option by moving
across the menus shown on the second line of the display.
+/– key - This key lets you enter a plus or minus to a quantity
entered. Its most common use is in entering values for the
equation, a method of flow conversion. On flow meters equipped
with the optional modem only, you can use this character as a
dash when entering dialout numbers.
2.2 Programming Procedure
To start programming, turn on the flow meter and wait for the
display to settle. Then either press the Enter/Program Step
key (generally referred to as Enter) or the Go To Program
Step key.
The display will change to two lines of text; the first line
describes the step you are programming and the second line
shows the choices available. One choice shown will be flashing.
The flashing indicates that this is the current one held in the
memory. If you are satisfied with this choice, just press Enter,
and the flow meter will advance to the next step.