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一、对血压表的一般要求1.血压表表盘的最小分度值是2毫米汞柱,每10毫米汞柱处应是一条长分度线,每20毫米汞柱处应标明计量数字,分度线和数字应清晰。指针与表盘之间的距离为1～2毫米。在无压情况下,指针应紧靠挡销柱或在“0”位。2.将血压表升压至300毫米汞柱,再以每秒20毫米汞柱的速度放气,指针在回转过程中应无跳动和呆滞现象。3.加压至260毫米汞柱,再缓慢放气至200毫米汞柱,立即关闭气阀,指针应能停留20秒钟不动。4.在一般血压范围内,脉膊跳动能使表指针摆动1毫米汞柱以上。二、示值检定用误差小于0.6毫米汞柱的标准血压表、标准杯形压力计或标准 U形压力计作标准仪器,按图2所示利用鼓气球(带气阀)和三通接头把被检表与标准仪器同时接通。
First, the general requirements of the blood pressure gauge 1. The smallest scale of the dial gauge is 2 mm Hg, 10 mm Hg should be a long index line, every 20 mm Hg should be marked with the measurement figures, points Degree lines and numbers should be clear. The distance between the pointer and the dial is 1 to 2 mm. In the absence of pressure, the pointer should be close to the stop pin or “0” position. 2. Boost the blood pressure gauge to 300 mmHg, and then deflate at a rate of 20 mmHg per second. The pointer should be free from beating and sluggishness during the rotation. 3. Pressurize to 260 mmHg, then slowly deflate to 200 mmHg, immediately close the valve, the pointer should be able to stay for 20 seconds. 4. In the general range of blood pressure, the pulse of the pulse can swing the meter above 1 mm Hg. Second, the value of the test used to determine the error of less than 0.6 mm Hg standard blood pressure gauge, standard cup-shaped pressure gauge or standard U-shaped pressure gauge as a standard instrument, as shown in Figure 2 using the balloon (with air valve) and tee fittings Seized table and standard equipment connected at the same time.