marsden B-300, User Manual, Page: 15 / 23

14
CALIBRATION FUNCTION
Occasionally the scale's accuracy should be verified by measuring a
known weight of the scale's approximate capacity. Tare the scale by
pressing “ON/OFF/TARE”, place the weight on the platform and note
the reading. Calibrate the scale if necessary.
CALIBRATION PROCEDURE
You must use a 20 lb calibrated weight ONLY to properly recalibrate
the scale.
1.
While the scale is off, press and hold the “ON/OFF/TARE" button
and then press the "UNIT/ " button 3 times. Release all buttons. A
number and the “lb” icon will display. (Note: the scale must be set
to weigh in pounds to recalibrate. If necessary, press the “UNIT / ”
button until the “lb” icon appears.)
2.
Press the “COUNT” button. The display will show “20”. (If the
scale does not show “20”, press “UNIT / ” until “20” appears.)
3. Place a 20 lb calibrated weight on the scale platform.
4.
Press the “COUNT” button. A number and the “lb” icon will
display.
5.
Press the “COUNT” button again. The display shows “CAL” then
“20.00” lb.
6. Remove the weight. Calibration is complete.
Note: If the calibration is unsuccessful, the display will show a
number instead of “20.00” lb. If this occurs, repeat the steps
above.