Beurer GS 42: 10 Evaluation of results Body mass index (BMI) 11 Replacing batteries 12 Storage and maintenance

10 Evaluation of results

Body mass index (BMI)

The body mass index (BMI) is a number that is often called upon to evaluate body weight. The

number is calculated from body weight and height, the formula is – body mass index = body

weight : height². The measurement unit for BMI is [kg/m²]. According to the BMI, weight is

classied for adults (20 years and over) using the following values (source: WHO):

Display Category BMI

Pink Underweight Severely underweight < 16

Moderately underweight 16-16,9

Slightly underweight 17-18,4

Green Normal weight 18,5-25

Yellow Overweight Pre-obese 25,1-29,9

Red Obese (overweight) Class I obese 30-34,9

Class II obese 35-39,9

Class III obese ≥ 40

Results in relation to time

Remember that only long-term trends are important. Short-term fluctuations in

weight over a few days are usually the result of a loss of fluid.

11 Replacing batteries

The batteries in the scale must be replaced if the message “Lo” appears in the display. If the

batteries are too at, then the scale will switch o automatically.

Note:

• When changing batteries, always use batteries of the same type, brand and capacity.

Always replace all batteries simultaneously.

• Do not use rechargeable batteries.

• Use batteries that are free of heavy metals.

12 Storage and maintenance

The precision of the measurements and service life of the device depends on its careful handling:

Important:

• The unit should be cleaned occasionally. Use a slightly damp cloth to clean the device. You

may also use a small quantity of cleaning agent if desired. Do not use abrasive detergents

and never immerse the unit in water.

• Protect the scale from knocks, damp, dust, chemicals, drastic changes in temperature,

electromagnetic  elds and nearby sources of heat (ovens, heaters). Do not press the

buttons violently or with pointed objects.

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