Welch Allyn ELI 150, Service Manual

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All signal input and output (I/O) connectors are intended for connection of only devices complying with IEC 60601-1, or
other IEC standards (e.g. IEC 60950), as appropriate to the device. Connecting additional devices to the ELI 150 may
increase chassis and/or patient leakage currents. To maintain operator and patient safety, consideration should be given to
the requirements of IEC 60601-1-1, and leakage currents should be measured to confirm no electric shock hazard exists.

The ELI 150 has not been designed for use with high-frequency (HF) surgical equipment and does not provide a protective
means against hazards to the patient.

The quality of the signal produced by the electrocardiograph may be adversely affected by the use of other medical
equipment, including but not limited to defibrillators and ultrasound machines.

The ELI 150 uses a lead-acid gel cell battery. Disposal of this battery must be in compliance with governmental
regulations.
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This unit can operate using AC power. Caution should be taken when working on this unit to limit the exposure to high
voltages. The unit should not be connected to AC power and the battery fuse should be removed when replacing any
assembly of this unit.