Mortara Instrument ELI 25O, User Manual, Page: 85 / 88

Recommendations to Biomedical Staff
Following any service to the ELI 250 or when non-compliant operation is suspected, Mortara Instrument, Inc.
recommends the following procedures:
• Confirm proper operation
• Perform testing to ensure continued electrical safety of the device
(use IEC 60601-1 or ANSI/AAMI ES1 methods and limits)
• Patient leakage current
• Chassis leakage current
• Earth leakage current
• Dielectric strength (mains and patient circuits)
Cleaning the Patient Cable
Patient cables should be kept clean using a damp cloth of lukewarm soapy water or a neutral cleaner. To
disinfect the patient cable, use a damp cloth of chemical disinfectants containing ethanol (70% - 80%),
propanol (70% - 80%) or aldehydes (2% - 4%).
WARNING: Do not attempt to clean/disinfect the ELI 250 or patient cable(s) by submerging
into a liquid, autoclaving, or steam cleaning. Never expose cables to strong ultra-violet radiation.
Battery Maintenance
The ELI 250 houses an internal sealed lead-acid battery. When installed, the battery has a shelf life
of approximately six months, without recharging. If the battery has been stored for a long period in a
discharged state; it may not be able to regain its capacity even if it is recharged.
For information about replacing the battery, please refer to the ELI 250 service manual.
Mortara Instrument, Inc. recommends that the ELI 250 be plugged into AC power whenever possible to
maximize battery life and for the user to develop a habit of recharging the battery before the unit indicates
“low battery” condition. (That is, reduce depth of discharge.) Battery life varies by how the battery is
maintained and how much it is used. For improved battery life, keep the cardiograph plugged in when not
in use.
The sealed lead-acid battery will provide optimum life when the unit is fully charged after each use. The
ELI 250 will charge a depleted battery to 90% of its capacity in approximately 8 hours or less. To recharge
a battery from its lowest level, 30 hours of recharging without operation will be necessary.
APPENDIX B
B-3