RAIN DETECTOR, Model : HD 2013.2, Brand : DeltaOhm

DESCRIPTION The HD2013.2 is a rain detector based on the capacity principle. The capacity value of the sensitive element, on an alumina rest, changes according to the surface dampened by raindrops. An integrated heater keeps it dry, evaporates water and prevents false signals caused by fog or dew. The heater also activates at low temperatures, melting the snow and allowing to detect snow precipitations. The instrument external circular dome acts as a windshield for the sensor, preventing false indications. The instrument is equipped with three different outputs: a “ Rain ON/ OFF” output, which detects whether it is raining/ snowing ( ON) or not ( OFF) , also used to control a relay coil or similar devices; a 0… 1V voltage analogue output ( calibrated) and a 1, 5… 6KHz frequency output ( not calibrated) , which provide an accurate indication of current precipitation intensity. The ON/ OFF output comes with a delay circuit that indicates the “ rain over” condition with a 2 minute delay, so that the “ rain over” condition is distinguished from the “ light rain” one. The heater can be disabled when power consumption is critical. To do it, set the Heater OFF input on 0V. If requested when ordering, a bird spike, consisting of a 6-spike ring ( spike height: 60mm, diameter: 3 mm) , can be mounted. Technical Data/ Specifications Sensor Type Capacitive, with integrated heater Sensor 6.6cm2 Angle 30° Sensitivity Min. sensitive area 0.05cm2 ON delay/ Trip delay ( OFF> > ON) > OFF) < 5min Dimensions Diam. x height ø 107 x 70 mm Weight 450g Cable length 5m ( other lengths available on request) Material BASF LURAN S777K Electrical Features Power Supply Supply Voltage 12Vdc ± 10% Current Consumption 130mA ( typical) 230mA ( max) 10mA ( with heater disabled) Sensor Power Consumption 0.5 … 2.3W Outputs Rain ON/ OFF Open collector, closed in case of rain. Max. Voltage 15V Max. Current 50mA Analogue Output 0… 1V ( 0V = rain, 1V = dry sensor) Frequency Output 1500 … 6000Hz ( rain … dry sensor) Not calibrated Inputs Heater OFF OFF = connected to GND Closing Contact Capacity 15Vdc, 2mA Ambient Conditions Operating Temperature -15 … + 55° C Storage Temperature -40 … + 65° C Electrical Connection – Colour Codes Power supply ( + ) Red Rain ON/ OFF Blue Heater OFF Green Analogue Output Yellow Frequency Output White Electronics Earth Black Heater Earth Grey