Fukuda Denshi HS-8000 Series, Руководство по обслуживанию

Страница: 82 / 132

8
－
4
The ECG waveform on the main unit becomes a flat line.
The lead-off conditions may occur for the following causes.
Cause 1
：
Electrode is off.
Solution
：
Place the electrodes again. If the electrode attachment is bad, replace the electrodes.
Cause 2
：
The lead cable is disconnected.
Solution
：
Securely connect the lead cable.
If error persists, the lead or relay cable may be disconnected.
The “Check Electrodes Attachment” message is displayed on the main unit.
Cause 1
：
The electrode contact with the skin is poor. There is substantial contact resistance
between the electrodes.
Solution
：
Replace all the electrodes.
Use the same type of electrodes .
Cause 2
：
Even though the “3-lead Override” (ECG Parameter Setup Screen) is set to ON,
electrodes other than L, R, F are connected.
Solution
：
Set the “3-lead Override” to OFF.
Or, detach the electrodes other than L, R, F.
The “ECG Unit Error” message is displayed on the main unit.
Cause
：
A communication error with the ECG measuring unit exists.
Solution
：
A failure to the ECG unit can be considered.
The measurement data on the main unit is displayed as “xxx”.
Cause
：
The heart rate is outside the measurement range.
Solution
： ・
Check the electrode application.
・
Replace the electrode, or check the lead cable.
Heart rate is not counted. Heart rate is low.
Cause
：
The ECG waveform amplitude is below the QRS detection level (0.3mV).
Solution 1
：
Change the electrode site, or select a lead with higher QRS amplitude.
Caution
：
Using 4-electrode, 5-electrode, or 10-electrode instead of 3-electrode allows more
accurate QRS detection.
Also, if large amount of noise is interfering, the noise may be erroneously detected as
QRS. It is recommended to change the electrode site and increase the ECG
amplitude.
Solution 2
：
Increase the waveform size of the main unit. By increasing the waveform size, small
QRS wave will become detectable. However, noise may be also detected.
Heart rate is not counted, and “LEAD OFF” message is displayed on the main unit.
Cause 1
：
The electrode of the displayed lead type is detached, or is not making good electrical
contact with the skin.
Solution
： ・
Check the electrode application.
・
Replace the electrode, or check the lead cable.
Cause 2
：
Even though the “3-lead Override” (ECG Parameter Setup Screen) is set to ON,
electrodes other than L, R, F are connected.
Solution
：
Set the “3-lead Override” to OFF.
Or, detach the electrodes other than L, R, F.