Monitor failure 1: After plugging in the AC power source, the green light on the panel does not turn on, and it cannot be turned on by pressing the POWER button, and there is no display on the screen.
Analysis and processing: Check whether the AC plug connector is in good contact, whether the fuse on the power supply board in the machine is broken, and whether the battery in the machine is dead. If there is no problem with the above, it is generally the power supply board that is faulty.
Monitor failure 2: Do not plug in the AC power source, press the POEWER button, the battery cannot be turned on, the green light on the panel does not light up, and the screen does not display.
Analysis and treatment: The battery may be out of power, you should plug in the AC power supply and then turn it on again. If the machine has been idle for a long time, you should charge it for 8 minutes and then turn it on again. It is possible that the performance of the lead-acid battery will slowly decrease after 2 years of use, and the battery will supply power. The time becomes shorter and affects the use, and the battery needs to be replaced.
Monitor failure 3: The machine loses control when it is turned on, and all keys are invalid.
Analysis and processing: If you occasionally encounter invalid keys, it may be caused by the machine's long startup time. You can restart the machine and shut it down to return to normal. In addition, the obstruction of individual keys is also a common cause of this phenomenon.
Monitor failure 4: The internal temperature rises too high, and the cooling fan does not rotate.
Analysis and treatment: Check whether the fan blades are blocked or jammed by foreign objects or the fan motor is burned out. If any, repair or replace it.
Monitor failure five: The screen shows the defect and lack of line, but the backlight is bright, and the buttons and functions are all normal and effective.
Analysis and processing: The buttons and functions effectively indicate that the main control circuit is normal, which is generally caused by poor contact between the industrial control board in the machine and the plug socket of the LCD.
Monitor failure 6: There is no ECG waveform after connecting the lead wire, and the screen shows that the lead is off.
Analysis and treatment: check whether the lead wires are broken or the plug socket is in poor contact, whether the subject's electrode pads are in poor contact, and the small pieces of sandpaper on the ECG electrode pads are used to grind away the dander on the skin If it is used, it should be used and the skin should be scrubbed. This can reduce the resistance and improve the quality of the ECG waveform.
Monitor failure seven: The ECG has 50Hz interference, the baseline is thick, and the baseline and heart rate values often drift.
Analysis and processing: Whether the electrode pads are in good contact, whether they are ineffective, whether the skin is cleaned, whether the patient moves or touches metal, the computer in the machine calculates the heart rate value based on the average time course of the most recent 8 ECG R waves. To get a good and correct heart rate value, you must choose a lead with clearer ECG R waves and no interference. After the patient moves or has just cut the lead or recovered after the lead falls off, the ECG wave has not stabilized. At this time, the heart rate value will fluctuate, but it will slowly return to normal after a few seconds.
Monitor failure eight: There is no blood oxygen waveform and value, and the waveform is disordered.
Analysis and processing: If there is no red light flashing in the probe, the probe is broken or the connector is in poor contact, whether the patient moves or the arm is under pressure, do not expose the arm when the room temperature is low, and the temperature of the arm is too low, which will reduce the blood flow of the fingertips and affect the measurement. .
Monitor failure 9: There is an error in the measured blood pressure value compared with the mercury sphygmomanometer.
Analysis and processing: The pressure measurement module of the oscillation method calculates the average systolic pressure and diastolic pressure by recording the pressure changes in the cuff. Compared with the invasive blood pressure value, the vibration method has less error and higher stability than the mercury sphygmomanometer method, and the latter is susceptible to human factors. Influence, due to differences in methods and individual biological differences, it is normal for individual errors to occur occasionally in clinical practice. However, if the deviation is too large, check whether the cuff trachea is leaking, whether the body position and binding position are correct during pressure measurement, and do not separate clothing during pressure measurement. If the sleeve is rolled over the cuff, it is easy to block blood flow and make mistakes.
Monitor failure ten: The blood pressure value cannot be measured.
Analysis and processing: When you press the START button, if you can't hear the sound of the air pump, you should open the case. Under the state of pressing START, measure whether J7 has +6?V power supply. If so, the air pump should be replaced if it is broken. If the air pump makes a sound, but the pressure in the cuff does not rise, check whether the rubber bag and rubber tube seal in the cuff is broken; if the cuff pressure rises but does not deflate, check the air valve or the power supply of the air valve. As a result, the gas valve should be replaced or the power supply should be repaired.
Monitor failure eleven: The adult cannot detect the pressure during the pressure measurement, but it is effective for the baby.
Analysis and processing: Generally, it is caused by incorrect settings of adult infants. If the infant equipment is used to measure the pressure of adults, it will easily cause insufficient pumping pressure and need to replenish air, and no results can be measured. If an adult is used to measure the pressure of a baby, it will easily cause physical damage due to excessive pumping, which can lead to severe necrosis.
Monitor failure twelve: The display value on the screen is constantly flashing in reverse.
Analysis and processing: The displayed value on some screens becomes flashing in reverse, indicating that the representative value has exceeded the preset upper and lower alarm limits. Pay special attention to the alarm key value on the panel, but the alarm sound cannot be switched on and off the screen. Flashing and warning lights.
