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一、概述本文介绍一种实用的称重及声光报警电路。其主要技术指标如下: 1.显示精度 0.1％±1字(F.S) 2.报警精度 0.1％±1字(F.S) 3.触点最大容量 220V2A/380V1A 4.载荷达满载90％时发出预报(黄灯显示并发出预报声) 5.载荷达满载110％时发出警报(红灯显示并发出警报声)
I. Overview This article describes a practical weighing and sound and light alarm circuit. Its main technical indicators are as follows: 1. Display accuracy of 0.1% ± 1 word (FS) 2. Alarm accuracy of 0.1% ± 1 word (FS) 3. Contact the maximum capacity of 220V2A / 380V1A 4. Load full load at 90% issued a forecast Yellow light and sound forecasting) 5. When the load reached 110% full load alarm (red light and alarm sound)