Aalborg’s Optical Sensor Switch Hi-Lo contains two sets of enhanced, self-contained mini-slim photoelectric sensors located on two solid carriers. Each set contains a transmitter and receiver. It can be used in OEM applications whenever maximum or minimum flow levels need to be automatically monitored.
An orange light signals that the float is in the desired position. The Hi-Lo can also be used in conjunction with a control relay to power alternate equipment or monitoring devices. The enhanced sensors, consisting of transmitter and receiver, will signal a cut-off valve, alarm, or other device when the float passes above or below the desired setting. These versatile optical sensor switches can be used with Aalborg’s P, S, and T rotameters. A kit is available for comparable flow meters.