The HL-233 Water-Level-Controller enables you to maintain a constant level of water in your aquarium fully automatically. It has two sensors and 4 different operation modes. You can determine e.g. the minimum and maximum water level with a sensor and switch on and off a pump with the the relay-steered 230V-240V plug socket. This enables you a fully automatic operation of water supply from a external water storage tank for your aquarium (also saltwater/seawater aquarium).
Sample applications: Automatic refill of evaporated water Avoidance of annoying edges of lime and edges of salt Avoidance of variations in density from sea water aquariums Overflow protection Protection from unlubricated operation of pumps (e.g empty storage) Fully automatic level control Control of sewage pumps
Operating mode A-1: Fill/Refill aquarium until desired water level was reached (1 sensor) and protect from unlubricated operation protection of the pump in the storage tank (1 sensor). Operating mode A-2: Fill/Refill aquarium until desired water level was reached (1 sensor). No storage tank control. Operating mode B: Empty water until minimum level is reached at two sensors. . Control by two sensors. Operating mode C: Empty water until minimum water level is reached at one of the two sensors (redundancy). Control by two sensors.
