M4735A Service Manual 2-41
Performance Verification Tests
2
Defibrillator Test (Battery Power At 200 J)
These instructions describe how to test the defibrillation function when
powered only by a fully charged battery, with no AC power connected.
If all results are as described, the unit passes the test. Return to the main
Diagnostic Test menu by pressing . If there is any failure, begin
troubleshooting and repairing the unit as needed. See "Troubleshooting"
on page 3-1 and Table 3-9 "Operational Problems - Defibrillation and
Synchronized Cardioversion" on page 3-23.
1. Set up the test.
a. Turn the defibrillator off. Insert the battery and disconnect the AC
Power cord.
b. Connect the defibrillator analyzer to the pads cable. Set the analyzer
to measure delivered energy. If needed, reset the analyzer’s display to
read 0.
c. Turn the defibrillator on. From the Diagnostic Menu, select the Defib
Meas Test and press .
2. Deliver a 200J shock.
a. Use the Energy Select control to select 200J.
b. Press to charge the defibrillator.
c. Press .
3. Check the analyzer readings.
Read the delivered energy indicated by the defibrillator analyzer. It
should be 200J ±15% (±30J).
4. Check the values displayed by the M4735A.
The results displayed by the M4735A should be as follows:
Available Energy: Not recorded - failure if >0.
ms to Charge: <
3000
Delivered Energy: Actual delivered energy ±7%
Impedance: 42 to 57 ohms
Peak Current: Ignore. Derived from same measurements as delivered
energy and impedance
Defib Errors: Not recorded - failure if any reported.
NOTE If the “ms to Charge” measurement is too high (unit takes too long to charge),
verify that the battery is fully charged. If it is, the battery may simply be old.
The 3000 ms specification is defined for a new, freshly charged M3516A
battery. Replace the battery with one that is new and fully charged, and repeat
the test.
MAIN
ENTER
CHARGE
SHOCK
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