Physio Control LIFEPAK 9 - Page 81

LIFEPAK 9 defibrillator/monitor
Table 3-7 Low Battery Thresholds
Test Point Function Low Battery Limits Shutdown Limits
Pin 25 Monitoring Check 15.50V +0.23V 14.50V +0.21V
Pin 25 Defib Charge Check 15.00V +0.22V 13.50V +0.20V
Note: Once illuminated, the LOW BATTERY: CONNECT AC POWER message
will not reset until the battery voltage rises above 16.5V.
4. Return the power supply voltage to +18.00 +0.05Vdc. Slowly reduce the
power supply voltage until the CRT display blanks out. Confirm that the
power supply voltage is within the Shutdown Limits shown in Table 3-7
for the Monitoring Check.
Defibrillator Charge 1. Use the DMM to monitor the voltage at the J3 pin 25 as shown in
Check Figure 3-8 (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 +£0.05 Vdc.
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 8 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.
170008-001 Orig
3-24 All Rights Reserved © August 1993 Physio—Control