Initial setup is important to achieve expected results and seamless operation.
Defibrillator and Electrosurgical Use
The MR400 has a defibrillation‐proof degree of protection that allows a patient to be defibrillated
while connected to the wECG module and leads. When using a defibrillator, follow all precautions
related to both the MR400 and the defibrillator equipment. During a defibrillation procedure, the
ECG waveform will saturate then recover in less than 5 seconds in accordance with AAMI/ANSI
EC13 and IEC 60601‐2‐27.
Expression MR400 Instructions for Use Getting Started 3‐1
Perform operational verification prior to use. If the MR400 fails to function properly,
remove it from use and contact technical support personnel.
Do not allow the patient to move while the MR400 is being used as over-activity may
result in prolonged or inaccurate readings.
Position of the accessories may affect measurement accuracy. Always consult a
physician for interpretation of measurements provided by the MR400.
Do not operate the MR400 outside the specifications indicated in Appendix A as it will
cause inaccurate results.
A minor but noticeable degradation in wireless module communications may occur in the
presence of high-powered radios.
Prior to clinical use, the user must be aware of the minimum distance from the MR magnet
that must be maintained for proper operation; see Positioning the MR400 on page 3-2 for