Multi-purpose anti-flooding rain water sensor 12V DC relay 16A 230V plate

FEATURES

• Power supply from 9 to 18V DC with consumption at rest less than 1mA (at 12V only 12 milliWatt)

• Can be used with a power supply or a battery (9 to 18VDC)

• Sensitivity adjustable by trimmer

• Deactivation delay time after end of water detection adjustable from 0 to 60 seconds approximately by means of a trimmer

• Normally open and normally closed output with relay to control devices up to 250V 16A

• Rain detection plate included in the price, which can also be used flush with the ground to detect water leaks in the house

• Anti-corrosion system of metal plates / contacts

• Intervention signaling LED

• Available in version with relay output 230V 16A max with NO (normally open) C (common) NC (normally closed) contacts or with voltage output (0V off, V power on) max 800mA.

• Made in Italy

SPECIFICATIONS

• Power supply: 9V to 18V direct current

• Consumption:

• Power absorbed at 12V less than 0.012 Watt (at rest), 0.72W in activation (version with relay)

• Can be used with power supply or battery

• Operating temperature -40 ° C to + 85 ° C

• Sensitivity adjustable by trimmer

• Deactivation delay time after end of water detection adjustable from 0 to 60 seconds approximately by means of a trimmer

• Detection plates with galvanic isolation from the rest of the circuit

• Maximum distance logic board - detection plate less than 1 meter with unshielded cable

• Normally open and normally closed output with relay to control devices up to 250V 16A (version with relay)

• Rain detection plate included, can also be used flush with the ground to detect water leaks in the house

• Anti-corrosion system of metal plates / contacts by means of a square wave oscillator

• Intervention signaling LED

• Available in version with relay output 230V 16A max with NO (normally open) C (common) NC (normally closed) contacts or with voltage output (0V off, V power on) max 800mA.

• Logic board dimensions 46x49x23mm, detection plate 25x51x18mm

• Low consumption CMOS technology

• SMT technology for maximum performance and small size

ASSEMBLY

• Version with relay output

To install the sensor in the relay output version it is necessary to connect the detection plate or the contacts to the PROBE terminals.

Then connect the 9 to 18V DC power supply which can be supplied by a battery or a 12V power supply for example.

The output of the sensor with relay consists of two contacts called clean which behave like a common switch by closing or opening a circuit.

In particular, by connecting the NO and C contact (normally open and common) there will be a closed contact (active load) in case of water detection and an open contact (deactivated load) in case the sensor is at rest without detecting water. While connecting the NC and C contact (normally closed and common) there will be a closed contact (active load) in case the sensor is at rest without detecting water and an open contact (load deactivated) in case of water detection.

The NO, C and NC contacts can also be used simultaneously with a single common to activate different loads depending on the state of the sensor.

Being clean contacts, the switched voltage and current can be from 0 to 250V in AC or DC and with current from 0 to 16A.

• SENSITIVITY ADJUSTMENT

Sensitivity can be adjusted by means of the appropriate trimmer, making it possible to make the sensor more or less sensitive to the presence of water. During the adjustment, two extreme anomalous operations can occur with or without water: always disabled (to solve increasing sensitivity) or always active (to solve decreasing sensitivity). Activation is indicated by illumination of the intervention LED.

Sensitivity must also be adjusted in relation to the type of water to be detected (rainwater requires more minimum sensitivity than domestic water given its purity) and to the sensor plate distance.

• POST DETECTION INTERVENTION DEACTIVATION TIME ADJUSTMENT

The sensor allows to have a temporal hysteresis from the end of the water detection to the signaling via relay or DC output. By means of the trimmer it is possible to adjust this time from 0 to about 60 seconds, allowing to avoid excessive switching in the event of intermittent water or detection close to the sensor threshold.

This delay only concerns the deactivation of the output at the end of the detection, for the activation of the output it occurs immediately upon the first detection of water.

IDEAS FOR USE

Rain sensor: mount the detection plate inclined at 45 degrees and connect it to the logic circuit placed in a watertight electrical wall box

Flood sensor / alarm: mount the detection plate vertically flush with the floor and connect it to the logic circuit placed in a watertight electrical wall box, or in the same way use two test leads (for example with screws) to connect in place of the detection plate.

Soil moisture sensor: allows you to signal to a control system or to an irrigation system when the soil of the plants or the garden is dry and needs water. By inserting two tips into the ground (e.g. screws or nails) and varying the distance until the circuit is activated at the chosen amount of soil moisture.

OPTIONAL ACCESSORIES

• Heated rain detection plate for 12V rain sensors with support

Rain detection plate compatible with all rain sensors that use electrical conductivity detection technology through plate with comb or wavy contacts. Thanks to the heated rear part, it is immune to humidity and atmospheric events other than rain alone, guaranteeing maximum performance at temperatures above 5 ° C and no false detection even in areas with high humidity. Supplied with support for wall or pipe installation using clamps. The internal 0.6W heater needs an additional 12V DC or AC power supply at least 60mA, see specifications for other allowable voltages.

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