According to Hanna Instruments , BL 983318 is a mini controller that has been designed for easy, affordable installation in tight spaces, ideal for simple yet effective process control.
BL 983318 is provided with ATC (Automatic Temperature Compensation) and simple calibration is performed at 1 point through trimmer. The multicolour LED continuously indicates if the controller is in measurement, dosing or alarm mode. Wiring and external device connections are extremely simple to perform through the terminals on the rear of the instrument. You can also choose automatic or manual dosing mode with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits you to enable or disable the dosing relay according to your need. The overtime control system advises you when the relay is active for too long, helping to prevent overdosage. Two models are available, with power supply input at 115/230 Vac or 12 Vdc.
BL 983318-0 is supplied complete with mounting brackets, transparent cover, 12 Vdc power adapter and instructions. BL 983318-1 is supplied complete with mounting brackets, transparent cover and instructions.