Omega FTB691A Guia Del Usuario página 5

3. Install the batteries. Make sure the positive
post is in the correct position.
4. Position the module on the turbine housing.
To avoid moisture damage, make sure the
seal is fully seated. Tighten the four screws
on the front of the module.
Ten feet (3m) of cable is provided with the
module. Trim the cable to desired length or
extend it as necessary.
Verify Meter Accuracy
Before using, check the meter's accuracy and
verify calibration.
1. Make sure there is no air in the system by
starting the flow until it runs steadily. Then,
stop the flow using a valve or nozzle.
2. Hold down DISPLAY for 3 seconds to zero
the meter's Batch Total. When zeros appear,
release the button.
3. Meter an exact known volume into an
accurate container. For best results, meter
with one continuous full stream.
4. Check the volume against the display
or recording equipment. If the amount
metered is accurate, field calibration is not
necessary. If not, refer to the Calibration
Section for further instructions.
OPERATION
Computer Display Batch and
Cumulative Totals
The display maintains two totals. The Cumula-
tive Total provides continuous measurement
and cannot be manually reset. The Batch Total
can be reset to measure flow during a single
use. The Cumulative Total is labeled with TOTAL
1 LOCKED indicating that this total is locked
and cannot be manually zeroed. Batch Total is
labeled with TOTAL 2.
When the Cumulative Total reaches a maximum
reading of 999,999, it will automatically reset
to zero.
Press the DISPLAY button briefly to switch
between the batch, cumulative total, and
flowrate.
NOTE: Totalization counts total units without
differentiating between gallons, liters or
field calibrated units.
Flowrate Feature
When this feature is activated, the word FLOW-
RATE displays to the left on the bottom line.
When FLOWRATE is displayed, the numbers
on the middle line reflect the rate of flow, for
example, the current gallons per minute (GPM)
or liters per minute (LPM).
Display FLOWRATE
To use this feature, press and release DISPLAY
until FLOWRATE appears to the left of the
bottom line.
Activate the Meter
Turn the meter ON by starting water flow or
briefly pressing the DISPLAY button. The meter
will display the Batch or Cumulative Total from
last use.
Press DISPLAY briefly to display the Batch
Total. Hold the DISPLAY button down for 3
seconds to reset the Batch Total to zero.
The meter is programmed to turn off auto-
matically if not used for 4 minutes.
Factory and Field Calibration Curves
All calibration information is visible to the user
as words in the upper part of the display, above
the numeric digits.
All units are configured with a "factory"
calibration curve. Both gallons and liters are
available ("GAL" or "LTR" will be displayed). Use
the CALIBRATE and DISPLAY buttons to switch
between gallons and liters. This curve is NOT
user adjustable: the word "PRESET" is
displayed to show this. (The factory calibration is
stored permanently in the computer's memory.)
The "field" calibration curve may be set by the
user, and can be changed or modified at any
time using the calibration procedure described
below in the Calibration Section. Totals or
flowrate derived from the field calibration are
visible when the field calibration setting is selected
("CAL B" will be visible on the top line).
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