Malfunction: the Mindray pm-8000express monitor is connected with power, and the machine is started normally. Test the normal electrocardiogram and blood oxygen, when measuring blood pressure, press the NIBP key and no reaction. Press other keys to react.

Preliminary judgment: keypad press or blood pressure module malfunction

Solution: open the front cover panel and replace the keypad. Press the NIBP button and your blood pressure will not respond. Disassemble the machine, replace the blood pressure board (blood pressure communication board) on the blood pressure module, and install the machine test. Press the NIBP key and you get a reaction. Test blood pressure, pump air, release air, have a value. (it's not over yet, so don't take it lightly) and finally have a blood pressure leak test! Leak detection report: "pump leakage". Replace the blood pressure pump. Install the machine, measure the blood pressure, and do 3 air leakage tests to ensure troubleshooting!