... 功率调速电子管 power klystron 功率阶指示器；动力阶指示器 power level indicator 功率平衡器 power leveler ...
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Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.
比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。
Indicator light of power supply indicates the working state3-level protection system:Automatic switch off, Boil-dry protection, Fusing protection.
电源开关指示灯，显示实时工作状态；三重安全保护装置：水开自动断电、干烧保护、熔断保护；
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