Q: Why doesn't the weight adjust automatically on the MEDISANA PSB scale?

The MEDISANA PSB scale operates on the "step-on" system - it automatically starts when you step on it. Here’s how to proceed correctly: Correct Procedure Step on the scale barefoot and remain still for a few seconds. The device will automatically turn on and briefly display " 0.0 kg " before starting the measurement. Wait a few seconds - the display will successively show your weight, then the fat percentage, body water, muscle mass, and calorie expenditure. The scale will automatically turn off after 36 seconds of inactivity . If it doesn't work Check the batteries: Make sure the 2 CR2032 lithium button batteries are properly installed (see the compartment under the device). If "Lo" appears on the screen, the batteries are low and need to be replaced. Place the scale on a flat and stable surface: An uneven or too soft surface prevents the sensor from functioning correctly. Have you programmed your data? Before the first use, press the ON button (②) and program at least one profile with your gender, age, and height using the UP (④) and DOWN (③) buttons.

Q: How to clean and maintain the MEDISANA FM 885?

Cleaning before use Before each cleaning, turn off the device and unplug it from the electrical outlet. Cleaning procedure Use a slightly damp sponge to clean the exterior surface of your FM 885. This method is sufficient to keep the device clean and hygienic. Important instructions Never immerse the device in water Do not use aggressive or chemical products for cleaning Avoid prolonged contact with moisture Storage Store your device in a dry and cool place when not in use.

Q: Why doesn't the side display light up while the blue screen works?

The BF 725 features a digital display with blue backlighting that shows weight measurements and body analyses. If the blue screen works but you don't see anything on certain parts of the display, here are some points to check: Check the battery level - If the batteries are low, the display may be partially visible or flickering. The message "Lo" appears when the batteries need to be changed. Replace the 3 AA batteries with new ones to ensure normal display operation. Make sure you are properly standing on the scale - The device activates the display when you step on it and turns off automatically after 8 seconds to save energy. Remain still for a few seconds while the scale stabilizes the measurement and displays all segments. Clean the edge of the screen - A buildup of dust or moisture around the display can affect the visibility of the displayed elements. Gently wipe the edge of the screen with a dry cloth. If the blue screen lights up correctly but some numbers or symbols remain invisible even with new batteries, there may be a technical issue with the display segments. In this case, contact MEDISANA customer service.

Question 1

Why doesn't the weight adjust automatically on the MEDISANA PSB scale?

Accepted Answer

The MEDISANA PSB scale operates on the "step-on" system - it automatically starts when you step on it. Here’s how to proceed correctly:

Correct Procedure

Step on the scale barefoot and remain still for a few seconds.
The device will automatically turn on and briefly display "0.0 kg" before starting the measurement.
Wait a few seconds - the display will successively show your weight, then the fat percentage, body water, muscle mass, and calorie expenditure.
The scale will automatically turn off after 36 seconds of inactivity.

If it doesn't work

Check the batteries: Make sure the 2 CR2032 lithium button batteries are properly installed (see the compartment under the device). If "Lo" appears on the screen, the batteries are low and need to be replaced.
Place the scale on a flat and stable surface: An uneven or too soft surface prevents the sensor from functioning correctly.
Have you programmed your data? Before the first use, press the ON button (②) and program at least one profile with your gender, age, and height using the UP (④) and DOWN (③) buttons.

Question 2

How does the MEDISANA PSB scale automatically measure weight?

Accepted Answer

The MEDISANA PSB scale automatically measures your weight using bioelectrical impedance analysis (BIA) technology. Here’s how it works:

Automatic Activation

Simply step on the scale - it turns on automatically (step-on function)
The scale first displays 0.0 kg, then your weight in 1-2 seconds
It automatically turns off after 36 seconds of inactivity

Initial Setup Required

For accurate measurement, set your personal data once using the UP (④) and DOWN (③) buttons and the ON button (②):

Gender
Age (10-99 years)
Height (100-220 cm)

What the PSB Measures

In addition to weight (5-180 kg with 100 g accuracy), the scale analyzes:

Body fat percentage (5-65%, accuracy 0.1%)
Water percentage (20-72%, accuracy 0.1%)
Muscle mass

No manual calibration needed: the scale measures automatically. It is ready to use after inserting the 2 included CR2032 lithium batteries.

Question 3

How to clean and maintain the MEDISANA FM 885?

Accepted Answer

Cleaning before use

Before each cleaning, turn off the device and unplug it from the electrical outlet.

Cleaning procedure

Use a slightly damp sponge to clean the exterior surface of your FM 885. This method is sufficient to keep the device clean and hygienic.

Important instructions

Never immerse the device in water
Do not use aggressive or chemical products for cleaning
Avoid prolonged contact with moisture

Storage

Store your device in a dry and cool place when not in use.

Question 4

The scale does not turn on at all even after cleaning the contact plates

Accepted Answer

If your MEDISANA BF 725 scale does not emit any light and does not turn on at all, even after cleaning the contact plates, here are the checks to perform in this order:

1. Check the batteries

The BF 725 scale operates with 3 AA 1.5 V batteries installed in the back compartment. This is the most common cause of total failure to turn on:

Open the back compartment
Ensure that the 3 batteries are installed correctly (observe the +/- polarity)
Test with new batteries if possible, even if your batteries seem good
The Lo display on the screen usually indicates low batteries, but if the batteries are completely dead, no power will occur

2. Check the SET button

The SET button is the power button. Press firmly and hold for a few seconds. If nothing happens, the button may be stuck or defective.

3. Contact plates

You have already cleaned the contact plates - this is a good step. Check that:

The contact plates under the feet are not damaged or heavily corroded
They are dry after cleaning
No debris is stuck between the plate and the contacts

4. Internal connection

If the batteries are new, the SET button presses well, and the plates are clean but nothing lights up, there may be an internal connection problem between the batteries and the electronic board. In this case, the product requires repair or replacement.

Question 5

Why doesn't the side display light up while the blue screen works?

Accepted Answer

The BF 725 features a digital display with blue backlighting that shows weight measurements and body analyses. If the blue screen works but you don't see anything on certain parts of the display, here are some points to check:

Check the battery level - If the batteries are low, the display may be partially visible or flickering. The message "Lo" appears when the batteries need to be changed. Replace the 3 AA batteries with new ones to ensure normal display operation.
Make sure you are properly standing on the scale - The device activates the display when you step on it and turns off automatically after 8 seconds to save energy. Remain still for a few seconds while the scale stabilizes the measurement and displays all segments.
Clean the edge of the screen - A buildup of dust or moisture around the display can affect the visibility of the displayed elements. Gently wipe the edge of the screen with a dry cloth.

If the blue screen lights up correctly but some numbers or symbols remain invisible even with new batteries, there may be a technical issue with the display segments. In this case, contact MEDISANA customer service.

Question 6

How to set the time on the MEDISANA AD 640 humidifier?

Accepted Answer

To set the time on your MEDISANA AD 640 aroma diffuser, you need to use the timer button and the built-in LED display. This device has a digital clock that shows the current time, easily adjustable in a few steps.

Time setting procedure:

Step 1: Press and hold the timer button for five seconds. A beep will sound and the LED display will start blinking, indicating that you are in setting mode.
Step 2: Press the Mode button several times to increase the hour to the desired time. Each press increases the hour by one unit.
Step 3: Press the light button several times to set the desired minutes. Similarly, each press increases the minutes.
Step 4: Wait for five seconds without pressing any buttons. The setting mode will automatically stop and the configured time will be confirmed by the LED display.

Once the procedure is complete, your MEDISANA AD 640 will display the correct time. The device keeps the time in memory and you can use the timer independently to schedule the automatic shutdown of aroma diffusion after 30, 60, 120, or 180 minutes.

Question 7

How to change the weight unit on the MEDISANA BS 444 scale?

Accepted Answer

To change the weight unit on your MEDISANA BS 444 scale, follow these simple steps:

Turn on the scale by pressing the power button if necessary. Make sure the scale is placed on a flat and stable surface.
Locate the unit button, often marked "Unit" or with a symbol indicating the units of measurement. This button is usually found on the top or underneath the scale.
Press this button to scroll through the available units. Common options are kilograms (kg), pounds (lb), and sometimes stones (st).
Select the desired unit by releasing the button when the display shows the desired unit.
The scale will automatically remember this selection for future weighings.

If the scale does not have a dedicated button, it may be possible to change the unit by holding it down while turning it on or through a specific button sequence. In this case, trying to press and hold the power button or a combination of buttons may allow you to change the unit.

These manipulations will allow you to display your weight in the unit that best suits your needs.

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