If an electronic sphygmomanometer's v-hole valve is clogged the most likely error code to appear on the screen is

E1. According to the query electronic sphygmomanometer abnormal error prompts specific information related to the electronic sphygmomanometer v-hole valve clogged screen will appear E-1 symbols, showing that the pulse can not be measured, there are factors interfere. The solution is to clean up the v-hole valve blockage, and then restart the machine can be. Electronic sphygmomanometer is the use of modern electronic technology and blood pressure indirect measurement principle for blood pressure measurement of medical equipment.