选配装接有水压开关至主控板时此功能有效。
Matching fitted pressure switch has access to the main control board when this function effectively.
低压或高压开关- - -用于当水压降低到预先设置的最低值或超过预先设置的最高值时，切断控制电流。
Low or high pressure switch - turns off control circuit when water pressure drops below a set minimum, or above a set maximum.
本实用新型结构简单，开关动作与水压无关，因此适用于各种不同水压的场所使用。
The on-off action of the utility model is irrelevant to the water pressure. Therefore, the utility model is suitable for being used in various places with different water pressures.
压力表可发出供水压力下限和上限开关信号。
The pressure meters can give the switch signals of up limit pressure and down limit pressure of water supply.
压力表可发出供水压力下限和上限开关信号。
The pressure meters can give the switch signals of up limit pressure and down limit pressure of water supply.
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