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我厂在直径400mm的管道上安装了LD-300A型电磁流量计,用来测量供水流量。被测介质为地下水。安装后的试运行证明其量程不够。我们用改变量程指数的方法扩大了原表计的量程,使之满足生产现场的测量要求。现将表计的投运及量程的扩展做一简介。一、表计的配套本厂使用的电磁流量计由LD-300A型大口径电磁流量变送器、LDZ-1型电磁流量转换器、DXS-102型比例积算器和DXZ-110型单针指示仪组成。二、投运前的调试安装结束后,首先进行干扰信号的调整和转换器输出零位调整,调试记录如下: 量程指数:4.70; 现场调整最小干扰值:0.24mV;
I plant in diameter 400mm pipe installed LD-300A electromagnetic flowmeter, used to measure the water flow. The measured medium is groundwater. After commissioning test proved that its range is not enough. We have changed the range index expansion of the original meter range, so that to meet the production site measurement requirements. The meter is now put into operation and the expansion of the range to do a profile. First, the meter supporting the use of electromagnetic flowmeter factory by the LD-300A-type large-diameter electromagnetic flow transmitter, LDZ-1-type electromagnetic flow converter, DXS-102-type totalizer and DXZ-110 type single needle Indicator composition. Debugging before commissioning After the installation, the first interference signal adjustment and zero output converter adjustment, commissioning records are as follows: Range index: 4.70; site to adjust the minimum interference value: 0.24mV;