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The Water-Flow Monitor™ sensor is used to control water in open flow systems on the laboratory benchtop in the event of supply failure or popped condenser hose. It is suitable for flow rates of 0.1 to 2.0 liters/min (for higher flow or recirculating/closed systems see item #20904 instead).
The unit is installed on the end of your cooling system - for example, on the end of the outlet hose on a distillation condenser. When this compact unit detects a drop in flow it will switch OFF the power to the two power outlets. This unit features an integrated variable voltage control that you can connect to your distillation or reflux heating supply and one fixed voltage outlet that can be connected to a solenoid valve (item#20905 SOLD SEPARATELY) to shut off the water supply line. One unit therefore protects against unattended floods as well as fires.
This unit is easy installed, is rack mountable, and only Nylon™ and acrylic materials are wetted. The unit is suitable for operating temperatures in the range of 10 to 60 °C (50 to 149 °F). Case dimensions: 4 5/8" h x 4-3/4" w x 6-1/4" d. Weight: 3 lb (1.36 kg). Electrical rating: 120 V, 6.6 A @ 800 W.
A model with two fixed voltage outlets and higher wattage is also available (item #20902).