Futrex 5000/XL - Manual (Page 21)

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The FUTREX-5000A/WL has been carefully calibrated to provide body fat estimates. The calibration is traceable to the generally
accepted hydrostatic procedure.
However, some users may desire to have the FUTREX-5000A/WL reading traceable to their own laboratory. For those users the
following adjustment procedures are provided for each calibration set (i.e. adult, adult without exercise level term, adolescent, preadolescent):
1) Turn unit on.
2) During countdown press CLEAR, SELECT PROGRAM, RISKS.
3) The digital display will read "A1". To change to a specific calibration set:
Adult Calibration (older than 17 years) -- press ENTER.
Adolescent Calibration (13 - 17 years) -- press 3, then ENTER.
Preadolescent (5 - 12 years) -- press 4, then ENTER.
4) The digital display will show the value of the optical standard.
5) If no change to the calibration is desired - press CLEAR.
6) If you wish to change the calibration:
Press SELECT PROGRAM, then press RISKS. The display will show "0.0" (if no calibration adjustment has been made)
or the previously entered adjustment value.
7) To adjust the calibration:
Press the numbered key to enter the amount of adjustment. For example, if you want to decrease the instrument's
readings by 1.0% - press 1, press 0, then the minus sign, and then ENTER. All future body fat readings will now read 1.0%
lower.
8) Once the correct offset has been entered into the unit, press ENTER. The adjusted optical standard value will be
displayed.
9) To exit this mode: Press CLEAR.
ADJUSTING THE PERCENT BODY FAT READING