| 摘要 |
<p>PURPOSE:To enable the maintaining a pressure in a pressure cuff and bag at a fixed level with the closing of a fine speed exhaust valve along with easier connection of a reference device by providing a external reference device connecting section for detecting pressures at a proper point of an air element communicating with the pressure cuff and bag while a fine exhaust valve closing means is provided to close a fine speed exhaust valve for reducing a cuff and bag pressure. CONSTITUTION:When a machine difference checking is executed, a reference device 14 is connected to a plug 13 for connecting the reference device while a pressure cuff and bag 1 is connected to a plug 12 for measurement. Under such a condition, when a machine difference switch 10 is depressed, a CPU9 selects a machine difference checking mode. In short, with a switching over to the machine difference checking mode, the CPU9 closes a solenoid valve 61 of a fine speed exhaust valve 6 and with the closing of the fine speed exhaust valve 6 is closed while a quick exhaust valve 5 is closed simultaneously. Thereafter, a pressure pump 4 is driven. Thus, pressures of the pressure cuff and bag and the reference device 14 are transmitted to detect the pressure of the pressure cuff and bag with a pressure sensor 3 while the pressure is detected on the side of the reference device 14.</p> |
