My experience with the 'low cost' Omrons are that they are both extremely reliable and accurate. I am retired and can not remember the actual procedure but I do remember that you placed a one way valve in the circuit and pumped the unit up to release the safety valve and then reduced the pressure and checked it against a calibrated manometer. With the later models of Omrons you pumped them up to a certain pressure and then this would put them into calibration mode but I can not remember the details. Other than leaking cuffs and worn input valves these little units were excellent and gave as good an indication of blood pressure as the expensive hospital type monitors did. I would not expect so many Doctors and Nurses to be using them if they did not give satisfactory results. I did write a procedure for testing them based on the manufacturers recommendations but that was years ago. All the units in the PCTs were added to the asset register and checked and tested together with any electrical chargers on an annual basis.
Last edited by Barney; 12/03/15 10:51 AM.
