Differential Pressure Sensor works on the principle that the measured pressure acts directly on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement proportional to the water pressure, so that the capacitance of the sensor changes, and the electronic circuit detects this change and converts it into an output of a standardized measurement signal corresponding to the pressure.
1) It is recommended that the pressure sensor and its three-way valve be placed at the level of the center line of the armpit, and this tee is used to ventilate and zero the sensor.
2) Approve the protective cap on the tee valve as perforated, connect the transducer to the monitor and zero the transducer under atmospheric conditions according to the monitor instructions.
3) After the monitor is zeroed, close the three-way valve and the air connection port, and cover the protective cap without holes.
4) Test the power response of the system with a square wave. The power response test should be performed after flushing the line, exhausting the air bubbles and connecting with the patient for zeroing and calibration and a series of other operations.
Note: The system takes about one minute to equilibrate, and then a small drop is applied to check that the flush valve is in good condition and to visually observe any leaks. Check periodically after 30 minutes of installation to ensure that the infusion bag is at normal pressure, flow rate, and that there are no leaks. Any small leaks may cause the monitor to read incorrectly.
Zhejiang Chenhe Medical Equipment 5) After the system is zeroed and calibrated properly, dynamic monitoring is performed as needed.