Agilent Technologies EXG Guía de usuario Pagina 133

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Evaluating the Patient Cable
7-8 Maintaining the Cardiograph
Evaluating the Patient Cable
The following procedure should be followed to detect internally shorted lead
wires in the electrocardiograph patient cable. It is also recommended that the
patient cable not be tightly coiled.
This test should be performed at least once each day prior to using the electro-
cardiograph. The test should be performed regardless of the condition of the
patient cable and additionally, whenever you suspect that your patient cable
may be damaged.
1. Plug the patient cable into the cardiograph.
2. Make sure the individual lead wires do not touch each other or any con-
ductive material.
3. Switch the cardiograph to the ON position.
4. The top line of the display or top line of an AUTO recorded ECG [Printed
Form] should indicate RL (AHA) or N (IEC) or RL/N (combined AHA/
IEC).
5. If the top line of the display or the top line of the AUTO recorded ECG
[Printed Form] shows leads other than RL, N, or RL/N, then an internally
shorted lead has been detected, and the patient cable must be replaced.
Caring for the Battery
Your cardiograph requires the battery to be installed for proper operation
even if the cardiograph is plugged into AC power, it cannot print an ECG
report without the battery. For information about installing or replacing the
battery, refer to Setting Up Your Cardiograph.
The sealed lead-acid battery used in the PageWriter 200/300pi will provide
optimum life when the unit is continuously connected to AC power and fully
charged after each use. A depleted battery requires 16 hours of continuous
charge time to fully charge. Because it is not always possible to allow a full
charge cycle between uses, the PageWriter 200/300pi was designed to charge
a depleted battery to 90% of its capacity in approximately seven hours.
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