Table 1-1. Energy setting and voltage.
(4) Next, with the aid of a defibrillator output tester, select 200j. Charge up the
defibrillator and deliver energy to the tester. The output should be 200j. If not, adjust R112
clockwise or counter clockwise until exactly 200j are delivered. All other energy levels
should be nominal 1j, except 360j, which will be 5j or a maximum deviation of 15 percent,
whichever is greater.
b. Adjust the Safety Dump Time-Out. Refer to Appendix G, Porta Pak 90
Defibrillator Schematic, section B-4.
(1) The safety dump time-out is adjusted by R61 so that if the paddles are fired
open circuit, the high voltage will be internally dumped in less than 40msec.
(2) This can best be seen on the oscilloscope by observing the discharge
across R67, the 1k 25w resistor. In essence, this is viewing the pulse from paddle to
paddle. This must be done using a scope with a high voltage probe capable of 2000v with
the scope in the triggered sweep mode.
c. Adjust the Battery Meter. Refer to Appendix G, Porta Pak 90 Defibrillator
Schematic, section B-9.
(1) With the battery disconnected from J4, connect a variable dc power supply
to J4 with the voltage adjusted to 11.0v.
Turn on the power switch, but do not charge.
(3) Adjust R198 so that the needle on the meter is on the line of transition
between the red and green area of the meter face.