CPS FX1234, Service Manual, Page: 22 / 57

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6. Scale Tare and Accuracy Check Procedure
The scale of the FX134A / FX1234 / FX3030 Series may require a periodic adjustment. After time the scale may slightly drift
from its initial zero setting. The following is the re-tare procedure to reset the zero setting:
a. Turn unit on and proceed to main menu, and select the gears icon on bottom of screen.
b. On next screen select the wrenches icon on the right side of screen.
c. Then select scale icon on screen.
d. Then select scale icon with check mark above it.
e. Then place 1 lb weight that is supplied with FX unit on top of tank. (Leave tank on scale)
f. Select green check mark if 1 lb is displayed, and continue back to main menu.
g. Select red circle if 1lb is not displayed and select Tare icon on screen, and follow instructions on screen for scale.
h.
Then repeat steps above starting with step d.
i. A full calibration may be needed if proper readings are not achieved. ( see section 4 )