Fluke Biomedical MPS450 - Manual (Page 107)

A-1
Appendix A
Troubleshooting
Introduction
Table A-1 lists some possible problems and their solution for repair.
Table A-1. Problem vs. Solution
Problem Probable Cause Solution
ECG
Monitor filters There will be a slight loss of amplitude when
simulating NSR. Use a pulse wave to verify
amplitude more accurately.
Lead setting on monitor
incorrect Check monitor lead select switch. Set to
Lead II. Lead II amplitude not correct
Leads not connected
properly Check color-coded ECG jacks.
Blood Pressure
MPS450 transducer
sensitivity not set
correctly Check monitor manufacturer’s BP-sensitivity
requirements. Reset the MPS450 either to
5
μ V/V/mmHg or to 40 μ V/V/mmHg.
Wrong BP cable Many manufacturers use plugs and
configurations with wiring differences. Check
the MPS450 BP-wiring diagram and match
with monitor specification.
Monitor not zeroed Zero the MPS450 BP channel. Next, zero the
monitor.
Monitor sensitivity
(scaling) not correct Adjust scaling on monitor, near range
simulated (i.e., 120 mmHg).
No BP or wrong output
Performance waveform
currently output (which
turns off BP) Select normal physiological waveform.