Compliance West MegaPulse Defib-5PF-002, Instruction Manual

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16
Initial Checkout Procedure
The following procedure will verify that the MegaPulse Defib-5PF-002 tester is working
correctly. We recommend that this procedure be conducted periodically to ensure proper
operation of the tester. The following items are needed to conduct this procedure: A measuring
instrument to monitor the output waveform. Always ensure that the measuring instrument (usually
an oscilloscope with a high-voltage probe) is rated for the voltage involved, and that the frequency
response of the instrument and probe is capable of measuring the output waveform of the
MegaPulse Defib-5PF-002 tester. A measuring instrument or probe with a low frequency
response will result in erroneous readings that could be mis-read.
CAUTION
High voltage generated by the MegaPulse tester is exposed during this test. A risk of
shock exists. Exercise care when using the MegaPulse tester.
1. Connect the tester to a proper source of supply using the included 18 AWG power supply
2. Plug a pair of leads to the Output on the front panel. Use channel 1 and 2 for this test.
3. Connect the leads to an appropriate measuring instrument (typically an oscilloscope with a
high-voltage probe). Note that the RETURN lead is referenced to the chassis ground of the
tester, in this case we will connect channel 1 to the return of the probe, connect channel 2 to
the High Voltage of the probe.
4. Turn the Tester on. And connect the computer to the TestMinder port on the rear panel of
the tester.
5. For the following steps refer to the commands table.
5.1 Send command to select channel 2 output
5.2 Send command to set voltage at 500V
5.3 Send command to charge
5.4 Send command to trigger
6. Capture de waveform on the oscilloscope.
Note that the peak amplitude of the measured output waveform is proportional to the voltage
that is read of the front panel of the MegaPulse, but it will always be somewhat lower. This
is because the meter on the MegaPulse is measuring the voltage on the main impulse storage
capacitor. This voltage will intentionally dissipate to some extent before reaching the output
leads.
7. Repeat step 5 charging at 5000V.
8. Manual control checkout. Note: Multiplexor control can only be set via commands
8.1 Turn the VOLTAGE knob to 500V and press the knob to set the voltage
8.2 Press the charge button, verify the meter reach the set voltage.
8.3 Press TRIGGER to discharge.
9. Capture the waveform on the oscilloscope.
10 Repeat step 8 at 5000V.