Fluke-biomedical MPS450 User Manual download pdf (Page 54)

MPS450

Operators Manual

2-22

Alternatively, in the Numeric-Control Mode, press the number keys for the bundle-

branch-block simulation according to Table 2-16, and select RUN:

Table 2-16. Numeric Code for Bundle Branch-Block Settings

Bundle Branch-Block Setting Numeric Code

R BNDL BR BLOCK 049

L BNDL BR BLOCK 050

ECG Testing

The MPS450 sends a number of ECG waveforms to test and verify an ECG machine and

monitor. Performance waveforms can be used to test frequency response (both high and

low), sensitivity, gain drift, internal calibration, stylus damping, paper speed, linearity,

sweep speed, and more.

For square, pulse, sine, triangle, and R waves, both rate and amplitude are adjustable to a

wide range of preconfigured settings. R-wave width is also adjustable.

While running any performance waveform, outputs for respiration and blood pressure are

disabled; they are reactivated when a physiological waveform—such as normal sinus

rhythm—is selected.

Running a Performance Wave

The MPS450 offers a selection of preconfigured-rate settings for square, pulse, sine, and

triangle waves:

• Square waveforms—available at 2 or 0.125 Hz—are used most frequently to

test linearity, amplitude, and frequency response.

• Pulse waveforms—available at 30 or 60 BPM with a 60 ms pulse width—are

especially useful in measuring and calibrating paper speed, internal calibration

signal (as compared with the MPS450 calibration), sweep speed, stylus damping,

sensitivity, gain and drift.

• Sine waveforms—available at 0.5, 5, 10, 40, 50, 60, or 100 Hz—are used for a

variety of tests, including ECG sensitivity, frequency response (high and low),

and accuracy.

• Triangle waveforms—available at 2 or 2.5 Hz—are an important tool for

testing the linearity of an ECG unit.

Action in the Menu-Control Mode

1. Press the top-menu key labeled PERF to display the following LCD screen:

gje020.eps

2. Select SEL to toggle to the screen for adjusting performance-wave type

(WAVE/ampl), with WAVE in upper-case letters.

3. Select PREV or NEXT to scroll to the desired performance-wave type.

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Fluke-biomedical MPS450 User Manual Page 54