制冷系统各种容器的氨液面指示,是一项十分重要的工作。它关系到安全生产、合理运行和工人的劳动强度,意义重大。目前使用较多的液面指示器有仿丹麦38E型和仿苏型。前者线圈受潮,价格昂贵,后者活动部分生锈失灵。我厂试制成功一种采用磁钢和汞湿式舌簧管的液 Ammonia level indication of the various containers in the refrigeration system is a very important task. It relates to safe production, reasonable operation and worker’s labor intensity, of great significance. The current use of more liquid indicator imitation Danish 38E and imitation Su-type. The former coil damp, expensive, the latter part of the active rust failure. I plant a successful trial of a magnet and mercury wet reed tube of liquid