General problems for Patient Monitor -- Lead off
Malfunction instructions Possible cause Means to dispose
SPO2 off 1.SPO2 probe is damaged
2.Malfunction of the socket of the SPO2 signal line
3.Malfunction of the SPO2 module
1.Replace SPO2 probe
2.Rplace the socket of the SPO2 signal line
3.Replace SPO2 module
LEAD(L) OFF 1.LA electrode is invalid
2.The ECG leads are loose contact or damaged
3.The socket of the ECG signal lines is loose contact or damaged
1.Replace quality electrode
2.Re-plug or replace ECG leads
3.Replace the socket of the ECG signal lines
LEAD(F) OFF 1.LL electrode is invalid
2.The ECG leads are loose contact or damaged
3.The socket of the ECG signal lines is loose contact or damaged
1.Replace quality electrode
2.Re-plug or replace ECG leads
3.Replace the socket of the ECG signal lines
LEAD(V) OFF 1.C electrode is invalid
2.The ECG leads are loose contact or damaged
3.The socket of the ECG signal lines is loose contact or damaged
1.Replace quality electrode
2.Re-plug or replace ECG leads
3.Replace the socket of the ECG signal lines
LEADS(L,R,F,V) OFF 1.RL electrode is invalid
2.The ECG leads are loose contact or damaged
3.The socket of the ECG signal lines is loose contact or damaged
1.Replace quality electrode
2.Re-plug or replace ECG leads
3.Replace the socket of the ECG signal lines

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