Welch Allyn OSZ 3 Easy - User Manual - Manual (Page 15)

Directions For Use 7
Attention!
•
After the battery warning appears, the device is blocked until
the batteries have been replaced.
• Please use «AAA» Long-Life or Alkaline 1.5V Batteries. The
use of 1.2V Accumulators is not recommended.
• If the blood-pressure monitor is left unused for long periods,
please remove the batteries from the device.
Functional check: Press and hold the O/I button to test all the
display elements. When functioning correctly all segments
appear for about 2 seconds (If the 0/l button is pressed and held
for up to 3 seconds, the last measured value will be displayed).
5. Carrying out a measurement
5.1. Before the measurement:
• Avoid eating, smoking, as well as all forms of exertion
directly before the measurement. All these factors influence
the measurement result. Try and find time to relax by sitting
in an armchair in a quiet atmosphere for about ten minutes
before the measurement.
• Always measure on the same wrist (normally left).
• Attempt to carry out the measurements regularly at the
same time of day, since the blood-pressure changes during
the course of the day.
5.2. Common sources of error.
Note:
Comparable blood-pressure measurements always require the
same conditions! These are always quiet conditions.
• All efforts by the patient to support the arm can increase the
blood-pressure. Make sure you are in a comfortable, relaxed
position and do not activate any of the muscles in the