A&D TM-2441 Instruction Manual page 13

8. Precautions and Remedies for a Malfunction Due to a Strong
Electromagnetic Field
The recorder complies with EMD-standard IEC60601-1-2: 2014.
However, to prevent electromagnetic interference with other
devices, do not use mobile phones near the recorder.
If the recorder is located near strong electromagnetic fields,
noise may affect the waveforms and malfunctions may occur.
If an unexpected malfunction occurs during use, check for
electromagnetic interference and take appropriate actions.
Do not use a Bluetooth connection within the range of a
wireless LAN or other wireless devices, near devices that
emit radio waves such as microwaves, in locations where
there are many obstructions, or in other locations where
signal strength is weak. Doing so may result in frequent loss
of connection, very slow communication speeds and errors.
The following examples are general causes of malfunctions
and their remedies.
Use of mobile phones
Radio waves may cause unexpected malfunctions.
Wireless communication devices, home networking
devices such as cordless phones and similar
communication devices can affect the recorder. Therefore,
they must be kept at a distance of at least 30 cm or more
from the recorder.
Caution
Caution
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