Microlife BP A90 Manual page 6

Memory full

When the memory has stored 30 results, the memory is full.
From this point onwards, a new measured value is stored
by overwriting the oldest value.
Clearing all values
All memory data are cleared when batteries are taken out
of the device.
6. Battery Indicator and Battery change
Low battery
When the batteries are approximately ¾ empty the battery symbol AK
will flash as soon as the device is switched on (partly filled battery
displayed). Although the device will continue to measure reliably, you
should obtain replacement batteries.
Flat battery – replacement
When the batteries are flat, the battery symbol AK will flash as soon
as the device is switched on (flat battery displayed). You cannot
take any further measurements and must replace the batteries.
1. Open the battery compartment 4 at the back of the device.
2. Replace the batteries – ensure correct polarity as shown by the
symbols in the compartment.
Which batteries and which procedure?

Use 4 new, long-life 1.5 V, size AA alkaline batteries.

Do not use batteries beyond their date of expiry.

Remove batteries if the device is not going to be used for a
prolonged period.
Using rechargeable batteries
You can also operate this device using rechargeable batteries.

Only use «NiMH» type reusable batteries.

Batteries must be removed and recharged when the flat
battery symbol appears. They should not remain inside the
device as they may become damaged (total discharge as a
result of low use of the device, even when switched off).

Always remove the rechargeable batteries if you do not
intend to use the device for a week or more.

Batteries cannot be charged in the blood pressure monitor.
Recharge batteries in an external charger and observe the
information regarding charging, care and durability.
4
7. Error Messages
If an error occurs during the measurement, the measurement is
interrupted and an error message, e.g. «ERR 3», is displayed.
Error Description Potential cause and remedy
«ERR 1» Signal too The pulse signals on the cuff are too weak.
weak Re-position the cuff and repeat the
measurement.*
«ERR 2» Error signal During the measurement, error signals were
detected by the cuff, caused for instance by
movement or muscle tension. Repeat the
measurement, keeping your arm still.
«ERR 3» No pressure An adequate pressure cannot be generated
in the cuff in the cuff. A leak may have occurred.
Check that the cuff is correctly connected
and is not too loose. Replace the batteries if
necessary. Repeat the measurement.
«ERR 5» Abnormal The measuring signals are inaccurate and
result no result can therefore be displayed. Read
through the checklist for performing reliable
measurements and then repeat the
measurement.*
«HI» Pulse or The pressure in the cuff is too high (over
cuff pres- 299 mmHg) OR the pulse is too high (over
sure too 200 beats per minute). Relax for 5 minutes
high and repeat the measurement.*
«LO» Pulse too The pulse is too low (less than 40 beats per
low minute). Repeat the measurement.*
* Please immediately consult your doctor, if this or any other
problem occurs repeatedly.

If you think the results are unusual, please read through the
information in «Section 1.» carefully.
8. Safety, Care, Accuracy Test and Disposal
Safety and protection
 Follow instructions for use. This document provides important
product operation and safety information regarding this device.
Please read this document thoroughly before using the device
and keep for future reference.
 This device may only be used for the purposes described in
these instructions. The manufacturer cannot be held liable for
damage caused by incorrect application.