Handling Tips
This monitor is a precision instrument utilizing state-of-the-art technology. To keep the unit
in the best condition, follow these instructions carefully:
• Do not attempt to disassemble the measuring platform.
• Store the unit horizontally, and place it so that the Personal keys will not be
pressed accidentally.
• Avoid excessive impact or vibration to the unit.
• Place the unit in an area free from direct sunlight, heating equipment, high humidity, or
extreme temperature change.
• Never submerge the unit in water. Use alcohol to clean the electrodes and glass cleaner to
keep them shiny, applied to a cloth first; avoid soaps.
• When you change the batteries, exchange all four at the same time with new batteries.
Troubleshooting
If the following problems occur... then...
“st-lb” or “kg” appears while taking a weight measurement.
The unit’s “Weight Mode” has been set to measure your weight in units of stone-pounds
or kilograms. Refer to the Switching the Weight Mode (lb, kg, or st-lb) on p.5 if you would
like to change the setting back to pounds (lb).
Nothing appears in the display screen after initial display of preset data.
Check foot alignment. Make sure you wait for “0.0” to appear before stepping on the
platform. Check to see that the batteries are fresh and are in the correct positions.
Nothing appears when a Personal key is pressed, or the display shows “- - - - -”
and goes off when a Personal key is pressed.
No data (Adult/Child, Male/Female or Height) has been stored in the memory of that
Personal key.
The body fat percentage reading does not appear after the weight is measured.
Vibration will interfere with the fat percentage reading. Be sure to stand erect and still on the
measuring platform. Do not bend your knees. Be sure that shoes and socks are removed and
check foot alignment. Step off and repeat steps on p.6.
The body fat percentage reading is extremely low/extremely high.
Be sure you have selected the correct user mode (Adult/Child, Male/Female), and that the
soles of your feet are clean and properly aligned with the guides on the measuring platform.
Consider whether or not you are overhydrated. Step off and repeat steps on p.6. Dehydration,
foot calluses, etc. will interfere with the fat percentage reading. Step off and repeat steps on p.6.
If you need assistance, please call our toll-free customer service number at 1-800-TANITA-8
(USA and Canada only).
Specifications
TBF-621
Weight Capacity
300 lb (136 kg) (21 st-6 lb)
Weight Increments
0.5 lb (0.2 kg) (0.5 lb)
Body Fat Increments
1%
Power Supply
DC 6V AA-size (UM3-type) battery (x4)—included
Power Consumption
60 mA maximum
Measuring Current
50 kHz 500 µA
After sales service
Please contact the store at which you bought this
monitor for any inquiry regarding operation or
trouble, request for repair and/or placement of an
order for parts or products. Or call 1-800-TANITA-8
(USA and Canada only).
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