Health O Meter 3423 Manual page 151

CALIBRATION
This scale has been factory calibrated, and does not require calibration prior to use.
If required, the scale can be calibrated. Calibration of your scale is performed using kilograms
(KG) or pounds (LB), according to the units of measure used upon entering into the calibration
path. When calibrating in pounds, a total of 300 lbs is required applied in increments of 100 lb,
200 lb, and 300 lb. If calibrating in kilograms, a total of 120 kg is required applied in increments
of 40 kg, 80 kg, and 120 kg. THE 500KG CAN ONLY BE CALIBRATED IN KILOGRAMS.
Note: Only weights certified and traceable to national standards are to be used for
calibration procedures.
With the scale off, press and hold the UNIT button (500KL) or the blank
blue button (500KG) and ZERO buttons at the same time, then press the
ON/OFF button to turn on the scale. Release all three buttons when "CAL"
appears on the display. Numbers will appear indicating that you can begin
calibration.
When calibration numbers stabilize, press the ZERO button. "C-100" (for
LB mode) or "C-40" (for KG mode) will flash on the display, followed by "0"
or "1".
Place 100 lbs or 40 kg on the scale. Numbers will appear on the display.
When calibration numbers stabilize, press the ZERO button. "C-200" (for
LB mode) or "C-80" (for KG mode) will appear on the display, followed by
"0" or "1".
Place an additional 100 lbs or 40 kg on the scale, for a total of 200 lbs or
80 kg. Numbers will appear on the display. When calibration numbers
stabilize, press the ZERO button. "C-300" (for LB mode) or "C-120" (for KG
mode) will appear on the display, followed by "0" or "1".
Place an additional 100 lbs or 40 kg on the scale, for a total of 300 lbs or
120 kg. Numbers will appear on the display. When calibration numbers
stabilize, press the ZERO button. "END" will appear on the display,
followed by "OFF". The scale will automatically shut off.
P/N UM500KL 500KG REV20210305
ACTION
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DISPLAY SHOWS
"CAL" followed by
numbers
Numbers followed
by "C-100" or
"C-40" then "0" or
"1"
Numbers followed
by "C-200" or
"C-80" then "0" or
"1"
Numbers followed
by "C-300" or
"C-120" then "0" or
"1"
Numbers followed
by "END" then
"OFF"