5-1
5 Test and Material List
5.1 Test Procedure
5.1.1 5.1.1 Connection and Checking
Connect the simulators, power supply and test fixture properly to the DPM4 patient monitor, and
power it on. Then, the patient monitor displays the start-up screen on the TFT screen and enters
the system screen.
5.1.2 5.1.2 Functions of Buttons
Press every button on the button panel to check their functions as specified in DPM4 Operation
Manual. Rotate the control knob to check its functions.
5.1.3 ECG/RESP
The TFT screen displays the standard ECG waveform, and the error between the heart rate and
the set value of the simulator is no more than ±1, namely 60±1; the RESP waveform is smooth,
and the respiration rate is 20±1.
1. Select all leads in order, select all the four gains and AUTO, ensure the waveforms are
displayed properly, and check whether the 50Hz/60Hz interference can be filtered.
2. Check, in all the above-mentioned cases, the consistency between the heartbeats, the flashes
of the red heart-like indicator, and the R-wave.
3. The gain has no impact on the message “ECG signal over weak” in the HR calculation.
4. Verify the range and precision: Suppose that the amplitude of the GCG signal of the
simulator is 1mV, the heart rates are respectively 30, 60, 120, 200, 240 and 300. Check leads
I, II and III. The results should meet 29-31, 59-61, 119-121, 198-202, 238-242, and 297-303.
5. PACE pulse test: Set the simulator to PACE. You should be able to view the pace. Change
PACE amplitude to ±8 – 700mv, and pulse width to 0.1ms – 2ms. The PACE should be
legible, and LEAD OFF is displayed properly.
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