The Front Of The Monitor - Nellcor N-200 User Manual

Instruments:
Description:
Battery Capacity
Test, N-200:
Technical Update
Number 2
Battery Capacity Testing for
NELLCOR® Pulse Oximetry Products
Nellcor Technical Updates are intended to inform Biomedi
cal and Clinical Engineers of timely service and maintenance
issues regarding Nellcor products. These updates are distrib
uted to customers who own the identified products. Addi
tional copies maybe requested by contacting Nellcor Techni
cal Services at 1-800-NELLCOR (inside the U.S.A.), or Nellcor
corporate offices at 510 887-5858.
NELLCOR N-100, N-200, and N-250 pulse oximeters and N-1000 multi
function monitor.
NELLCOR monitors are equipped with sealed lead-acid batteries. Electrical
specifications for each monitor can be found in the operator's manuals.
Battery capacity decreases over time due to several factors such as tempera
ture, depth of discharge and number of charge/discharge cycles. Replacing
the battery periodically ensures battery operation when needed. A periodic
battery capacity check is also recommended. The time interval for this check
is left to the discretion of the customer. Depending on how the unit is used,
the customer may wish to perform a battery check as often as every 6 months.
This check should also include inspection of the batteries' physical condi
tion. Any batteries with signs of leakage or corrosion should be replaced.
Refer to the applicable "Battery Capacity Test" below for instructions on
testing battery capacity. Regardless of periodic test results, Nellcor recom
mends replacement of lead-acid batteries every 2 years. Replacement
batteries can be purchased through Nellcor Technical Services.
This test requires that the unit be fully charged for 14 hours. Use the
following procedure:
1. Place the N-200 in either ON or STDBY mode, ensuring that the instrument
is plugged into an operational, properly grounded AC outlet. (Ifan N-200
220-240 V monitor is being tested, the MAINS switch on the powerbase
rear panel must be on.)
2. Charge the battery for a minimum of 14 hours.
3. Test the N-200 for operation in the battery mode (unplugged from AC
power). The operating time in battery mode must be a minimum of 45
minutes.