The M4 metering pump from Blue White Industries.
The M4 metering pump from Blue White Industries.

The pumps also feature a 10,000:1 turndown ratio, five year warranty and NSF Standard 61. The M3 and M4 Series pumps have output rates up to 158.5 GPH/600 LPH, pressure rating up to 125 psi/ 8.6 Bar; and specially engineered tubing for long service life.

The revolution count display has a user programmable alarm set-point for tube maintenance and there is also a VGA Graphic multi-colour backlit LCD to display remote/local control status, motor speed,output rate, input signal values, service and alarm status.
Control inputs include 4-20mA, 0-10Vdc, and there are pulse inputs for remote external speed or batch control, and 0-30 VDC/contact closure remote start/stop.