Fluke MPS450 Service Manual page 34

MPS450 SERVICE MANUAL
FUNCTION: TEMPERATURE
Symptom: There is no temperature reading.
Suggestion 1: A temperature cable from the incorrect series may be in use. Check the
manufacturer's series for the thermistor used. Choose the correct Fluke Biomedical
temperature cable for either the YSI 400 or 700 Series.
FUNCTION: CARDIAC OUTPUT
Symptom: There are no cardiac-output values, or the values are not as expected.
Suggestion 1: The correct injectate temperature may not be selected. Note that the injectate-
temperature setting must match the expected temperature: 24
the injectate-temperature cable from the cardiac-output monitor is connected to the
bigger 4-pin switchcraft connector on the optional cardiac-output adapter box. Then,
turn the trimpot on the front panel of the CO adapter box until the injectate
temperature (IT) sensor on the CO monitor reads "0" or "24."
Suggestion 2: The setting on the cardiac-output computer for injectate volume may be incorrect.
Set the volume to 10 cc.
Suggestion 3: The setting on the cardiac-output computer for catether size may be incorrect. Set the
size to 7f.
Suggestion 4: The constant set on the monitor may not be correct. Set the constant to either .542
(chilled) or .595 (room temperature).
Symptom: The injectate temperature is not displayed on the monitor.
Suggestion 1: Adjust the injectate-temperature trimpot. Rotate the knob slowly until the desired
reading (0 °C or 24 °C) is displayed.
27
TROUBLESHOOTING
° C or 0 ° C. Check that