The flow sensor WFS suitable to control the flow of gaseous media in air ducts, the devices supply and exhaust air fans or electric heating (including in the polluted air containing oil vapors) or as a relay control flow. Jill Wittnebel contributes greatly to this topic. The principle of the flow switch in the WFS sledueschem: contact 1-2 opens with a decrease in flow to the specified value. At the same time closes contacts 1-4 and can be used as signal contact. The device is configured at the factory for the minimum cut-off threshold. By rotating the screw adjustment range to the right threshold value can be increased. Vane switch can be mounted in any position but must always be located in the direction of airflow. For mounting on vertical pipe alignment device need to be put to compensate for the weight valve.
With the instrument comes seal, which should be placed on the mounting plate. Specifications: Switching capacity – 15 (8) A, 24-250 VAC, Contact – dustproof microswitch as single-pole, potential free switch housing – plastic, nylon, 30% increase in glass beads, the color is pure white (similar RAL 9010), Dimensions – 108 x 72,5 x 70 mm, the main part – galvanized steel guide lever – brass fitting – stainless steel V2A, 1,4301, Accession Cable – M 20, strain relief, body temperature – -40 C. .. +85 C, deadband -> 1 m / c, E. connection – 0,14-1,5 mm, screw terminals, protection class – I (according to EN60730) Degree of protection – IP65 (according to EN60529) There are also sensors: – KLSW – air flow sensor RHEASGARD with relay output (single or two stage), may serve as a sensor or a flow monitor. – KLGF-1 – The flow switch air RHEASGARD measures the flow rate in m / s and converts the measurements into standard signal 0-10 V (relative) performance on the choices available to the display and no display. – KLGF-2 – air flow sensor measures the RHEASGARD flow velocity in m / s and converts the measurements into standard signal 0-10 V (relative) performance on the choices available to the display and no display.