inventum PW 620 BM, Instruction Manual

• If your weight increases over the medium term and the 

body fat percentage falls or stays the same, then you 

could have built up valuable muscle mass.

• If your weight and body fat percentage fall 

simultaneously then your diet is working – you are 

losing fat mass. Ideally you should support your diet 

with physical activity, fitness or power training. By this 

means, you can increase your muscle percentage over 

the medium term.

• Body fat, body water or muscle percentages should 

not be added (certain elements of muscle tissue also 

contain body water).

Important when measuring body fat/body water/muscle 

percentage:

• If possible, always weighs yourself at the same time 

  of day (ideally in the morning), after going to the toilet, 

  on an empty stomach and without clothes to achieve 

  comparable results. 

• The measurement may only be carried out while 

barefoot and it is helpful if the soles of your feet 

are slightly damp. Completely dry soles can result 

in unsatisfactory results, as they have insufficient 

condutivity.

• Stand still during the measurement.

• Wait several hours after unusually strenuous activity.

• Wait approx. 15 minutes after getting out of bed so that 

the water in your body can be distributed.

• remember that only long-term trends are important. 

Short-term changes in weight within a few days are 

usually caused by a loss of fluid. Body water plays an 

important role towards our general wellbeing.

The measurement is not reliable for: 

• Children under approx. 10 years of age;

• Professional sporters and bodybuilders;

• Pregnant women;

• Persons with fever, undergoing dialysis, with symptoms 

of edema or osteoporosis;

• Persons taking cardiovascular medication.

• Persons taking vascodialating or vascoconstricting 

medications;

• Persons with substantial anatomical deviations in 

the legs relative to their total height (leg length 

considerably shorter or longer than usual).

If the scale detects an error during measurement, this is 

indicated with 

Err

 or 

0_Ld

.

possible causes of errors

causes of error

The scale was not activated be-

fore you stood on it. If you stand 

on the scale before 0.0 appears 

in the display, the scale will not 

function correctly.

Activate the scale correctly 

(wait for 0.0) and repeat the 

measurement.

The electrical resistance between 

the electrodes and the soles of 

your feet is too high (e.g. with 

heavily callused skin).

repeat weighing barefoot. Slightly 

moisten the soles of your feet if 

necessary. remove the calluses on 

the soles of your feet if necessary.

possible causes of errors

causes of error

The fat percentage is outside the 

measurable range (less than 5% or 

greater than 50%).

repeat weighing barefoot. Slightly 

moisten the soles of your feet if 

necessary.

The water percentage is outside 

the measurable range (less than 

36% or greater than 70%).

repeat weighing barefoot. Slightly 

moisten the soles of your feet if 

necessary.

The muscle and bone percentages 

are outside the measurable range 

(age and gender related).

repeat weighing barefoot. Slightly 

moisten the soles of your feet if 

necessary.

The maximum load-bearing 

capacity of 150 kg (330 lbs) was 

exceeded.

Only weigh the maximum 

permissible weight.

And remember: Physical exercise is the basis for a 

healthy body.

The scale should be cleaned occasionally.

Dirt and dust has a tendency to collect on the rubber 

electrodes. Always stand on the scale barefoot or wearing 

socks as the rubber surfaces will quickly become dirty if 

you waer shoes. use a damp cloth to clean the scale. Do 

not use abrasive detergents and never immerse the scale 

in water.

• Do not use aggressive solvents or cleaning agents!

• never immerse the scale in water or any other 

  liquids.

• handle the scale with care, protect the scale from 

  impact with hard object and do not drop it.  

Battery type 

3 x 1,5 V, AAA (Lr03), microlight

measuring range 

5 kg to 150 kg

Weight, bone mass unit 100 g

Body fat, water,  

0.1%

muscle mass unit 

Bmr, Amr unit 

1 Kcal

Subject to technical modifications.

10 | tips

11 | incoRRect meAsuRements

12 | cLeAning & mAintenAnce

13 | technicAL specificAtions

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