Battery Replacement - Omega FTB691A Guia Del Usuario

7. Enter the volume (amount) of fluid that you
dispensed (for example, if your 10-gallon
container is full, enter "10.0" for gallons or
"37.85" for liters). To enter numbers, use the
CALIBRATE button to change the value of
the digit that is blinking and use the DISPLAY
button to shift the "blink" to the next digit.
8. Once the correct number is entered, briefly
press and release both buttons. The
display will now change to a blinking "run 02"
message. You have installed the new cal-curve
point. You are ready to end calibration (Step
10) or enter another new calibration point
(Step 9).
9. To enter another calibration point, go back
and repeat Steps 3 through 8. It is possible
to set up to 15 cal-curve points, and the
"run ##" message will increment each time
you repeat the calibration process (run 01,
run 02, run 03, etc., up to run 15).
10. To end calibration, press and hold both
buttons for about 3 seconds until you see
the "CAL End" message. After you release
the buttons the computer will resume nor-
mal operations with the new cal point(s)
active.
11. If you HAVE NOT dispensed any fluid, you
can exit calibration without changing the
cal curve. If the message "run 01" is showing
and you have not dispensed any fluid,
hold both buttons for about 3 seconds until
you see a "CAL End" message. After you
release the buttons, the computer will
resume normal operation and the old curve
(if you entered one in the past) is still intact.
MAINTENANCE
Proper handling and care will extend the life
and service of the meter.
Turbine Rotor
The meter is virtually maintenance-free.
However, it is important the rotor moves freely.
Keep the meter clean and free of contaminants.
If the rotor does not turn freely, apply a penetrat-
ing lubricant on the rotor, shaft, and bearings.
Remove any debris or deposits from the rotor
using a soft brush or small probe. Be careful not
to damage the turbine rotor or supports.
CAUTION
Blowing compressed air through the turbine
assembly could damage the rotor.

Battery Replacement

The meter is powered by two 3-volt lithium
batteries which may be replaced while the
meter is installed. When batteries are removed
or lose power, the batch and cumulative totals
reset to zero but the field and factory calibrations
are retained.
If the meter display becomes dim or blank,
replace the batteries as follows:
1. Remove the four Phillips-head screws from
the face of the meter and lift the faceplate
from the turbine.
2. Remove the old batteries and clean any
corrosion from the terminals.
3. Install new batteries. Make sure the positive
post is in the correct position.
4. When the batteries are replaced, the face-
plate will power ON. Check the display to
ensure normal functions have resumed
before assembling again.
5. Reseat batteries, if necessary, and position
the faceplate on the turbine housing.
To avoid moisture damage, make sure the
seal is fully seated. Tighten the four screws
on the faceplate.
SPECIFICATIONS
Inlet and Outlet:
For NPT Models:
FTB691A-NPT/FTB691A-NPT-P 1/2" NPT
FTB692A-NPT/FTB692A-NPT-P 3/4" NPT
FTB693A-NPT/FTB693A-NPT-P 1" NPT
FTB694A-NPT/FTB694A-NPT-P 1-1/2" NPT
FTB695A-NPT/FTB695A-NPT-P 2" NPT
Design Type: Turbine
Wetted Components:
Housing: PVC
Journal Bearings: Ceramic
Shaft: Tungsten Carbide
Rotor and Supports: PVDF
Retaining Washer: Stainless Steel
5