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三二○厂研制的LPH-2J型弹簧力平衡式压力计,用于测量绝对压力值,校检气压式高度表、马赫表的标准器,代替目前常用的开口标准水银压力计。今年五月通过省级鉴定。鉴定会代表一致认为:经过几年的试用证明,该仪器性能良好,使用方便,是压力测试无汞化的好仪器。主要技术性能: 最大示值误差±1毫米汞柱非线性误差±1毫米汞柱不重复性误差±1毫米汞柱迟滞误差±1毫米汞柱
The LPH-2J spring-force balance pressure gauge developed by No.220 Plant is used to measure the absolute pressure value, calibrated barometric altimeter and Mach gauge standard, instead of the commonly used open standard mercury gauges. This year in May passed the provincial appraisal. Representatives agreed on the identification: After several years of trial proved that the instrument performance is good, easy to use, is a good mercury-free pressure test equipment. Main technical performance: Maximum indication error ± 1 mmHg Nonlinearity error ± 1 mmHg Non-repeatability error ± 1 mmHg Hysteresis error ± 1 mmHg