HRP series Electromagnetic metering pumps High resolution & ultra compact DC power voltage / vertically- or horizontally- oriented pump head The HRP series is powered by 12VDC or 24VDC and offers an ideal t for built-in applications. Select verticallyor horizontally-oriented pump head to get optimum mounting position in various host machines. Waterproof and dustproof structure High resolution Digitally-controlled spm range is 0720spm. The minimum ow of 0.055ml per shot offers a constant imperceptible injection. The sealed drive unit and control unit are enclosed to a water/dust-proof rating of IP65. • This pump is not completely water resistant. Protect the pump with a cover when installing it out of doors. Operational function HRP pumps are controlled by an external signal and are available in the following types. Pulse control type 1-5V control type A pulse signal input controls pump operation (stroke rate). The pump makes one shot per pulse synchronously. The input of 1-5V proportionally controls the pump operation (stroke rate). • An input signal is required to enable operation in addition to power activation for this type. • The pump can not exceed a maximum of 720spm, even if the external signal input instructs the pump to run beyond that speed. • An input signal is required to enable operation in addition to power activation for this type. 4-20mA control type The input of 4-20mA proportionally controls the pump operation (stroke rate). • An input signal is required to enable operation in addition to power activation for this type. Optional air vent valves are available. Stop control type The input of the stop signal suspends the pump operation. • The type of pump starts to run at 720spm upon power activation.