Specifications
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Testing & Maintaining
the Agilent V24/V26
Series
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The System Boot automatically starts every time the system is switched ON.
7(67 Turn the System On by pressing the power switch in the lower
left-hand corner of the display.
5(68/7 The system will click and light-up the LEDs on the keypad. After
several seconds, the LEDs will go off and the display will start showing
waveforms and numerics.
If the system fails to boot, see the Troubleshooting chapter in this
manual
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Note the positions of the contrast/brightness controls before starting tests so that they are
returned to their previous positions (assuming they are correct) at the end of the testing
procedure.
6WHS Set up an ECG signal from a fixed rate simulator on the screen.
6WHS Check the ECG complexes. They should be regularly spaced. Uneven spacing indi-
cates missing pixels. All portions of a simulated ECG waveform should be clear
and visible, including the P wave and QRS.
6WHS Adjust the contrast control from maximum setting to minimum setting. Optimum
contrast should be near the middle of the range.
6WHS Check to see if any noise (interference) is superimposed on the baseline with the
ECG simulator attached. Baseline interference may be apparent as a thick baseline
at high gain settings.
6WHS While in Diagnostic ECG Mode, apply an external 1 mV pulse. The trace should
exhibit a leading edge with minimal rounding and a spike (or overshoot) of less
than 10%. After 1 second, the pulse should have decayed no more than half of its
original amplitude.
6WHS Return the shift, contrast and brightness controls to their previous positions (assum-
ing they are correct). Refer to the Troubleshooting section if any problems were
identified.