LifePak Defibrillator Charge-Trouble Shooting

Defibrillator Charge Check

1. Use the DMM to monitor the voltage at the J3 pin 25 as shown in Figure 3—7 (connect the DMM ground to J3 pin 7

2. Turn the defibrillator/monitor power on and initially set the power supply output to +18.00 ±0.05Vdc.

3. Charge the defibrillator to 360J.

4. Gradually reduce the power supply voltage toward the upper Low Battery Limit detection threshold of + 15.22Vdc.

5. With the defibrillator paddles securely stored in the paddle wells, discharge the defibrillator into the internal test load of the defibrillator.

6. Repeat steps 3 through 5 above, lowering the power supply voltage toward the lower Low Battery Limit detection threshold of + 14.78Vdc until the LOW BATTERY: CONNECT AC POWER message is displayed. Confirm that the triggering voltage is within the Low Battery Limits shown in Table 3—7 for the Defib Charge Check.

7. Return the power supply voltage to +18.00 ±0.05Vdc.

8. Charge the defibrillator to 360J.

9. Slowly reduce the power supply voltage toward the upper Shutdown Limit detection threshold of +13.70Vdc.

10. Discharge the defibrillator into the internal test load of the defibrillator.

11. Repeat steps 7 through 10 above, lowering the power supply voltage toward the lower Shutdown Limit of +13.30Vdc until the CRT display blanks out. Confirm that the power supply voltage is within the Shutdown Limits shown in Table 3—7 for the Defib Charge Check.

Next Page