The EH-E series electronic metering pumps have a compact structure and a large flow capacity, with the maximum reaching 1.25L/min. The EH-E controller and its microprocessor enable the pump to operate not only under manual control but also under various external signals (milliampere and pulse signals) for automatic control.
High sensitivity
The discharge flow is controlled by both stroke length and frequency. The stroke length can be adjusted within the range of 20% to 100%, and the stroke frequency can be set within the range of 0 to 360spm, thus enabling the EH-E pump to have a wide range of flow.
Built-in microcomputer controller
The built-in microcomputer controller enables the pump to operate in four modes: manual adjustment / proportional control / pulse control / counting control. The modes can be switched between each other by pressing the buttons.
Waterproof/dustproof structure
The pump body (PPE + GF) is equipped with an aluminum alloy frame inside. Its waterproof and dustproof structure can protect it from corrosion by liquids and gases, and its waterproof rating reaches IP65.
Chemical corrosion resistance characteristics
The pump head is made of three materials: PVC, PVDF and SUS. The other flow passages are composed of anti-corrosive materials such as ceramics, fluororubber, PTFE, etc.
Manual mode
The stroke frequency can be set to a certain value within the range of 0 to 360 spm, incrementing or decrementing by 1 spm. This setting can be made regardless of whether the pump is in operation or stopped.
Proportional control
The stroke frequency can be controlled proportionally via external DC 0~20mA (direct current signal), and the input signal can be selected by pressing the buttons.
Pulse control
The EH-E series pumps can respond to external pulse signals according to the division algorithm, that is, the pump operates once for every n external pulse signals input. The value of n can be set within the range of 1 to 999 by pressing the buttons.
