Fluke Biomedical MPS450 - Manual (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.