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OPERATION MANUAL

Technical changes reserved
0141 0316-212   20.07.2020

Rain Detector REGME

model 12 V AC/DC or 24 V AC/DC

Description

Description

Technical Data

Measurement method

Electrolytic AC measurements

Input current
12 V Model 
24 V Model

60 mA, Heater 80 - 300 mA (PTC)
50 mA, Heater 40 - 180 mA (PTC)

CE-Conformance

2014/30/EU

EMV-noise emission

EN 61000-6-3:2011

EMV-noise withstanding

EN 61000-6-1:2007

Cable gland

M16 x 1,5

Clamping area

6,0 - 9,5 mm

Operating voltage chooseable:

12 V AC/DC ± 10%
24 V AC/DC ± 10%

Output

output (relay) 30 V / 4 A,
NO / NC selectable

Housing

ABS, ingress protection IP54

Dimensions (w x h x d)

80 x 82 x 58 mm

Article

Art.-No.

Rain Detector 12 V

REGME-12V

Rain Detector  24 V

REGME-24V

Combined wall/mast mounting 
bracket

REGME-WAHA

Applications

•  Nurseries, Agriculture

•  Control of Ventilation panels

•  Automatic switch for Blinds and Rolling windows

•  Building instrumentation

•  Weather stations

Functional description

The large sensor area reacts to rain or snow. The switch polarity and sen-

sitivity are adjustable. The optionally switched heater prevents freezing or 

dew formation and accelerates drying. In the maximum sensitivity setting, the 

device is also suitable for recognizing fog. 

Application

The rain guard is fitted with a relay contact for switching low voltages up 

to 30 V DC/AC which can be used to operate any switching device e.g. a 

marking control device. Sensitivity can be adjusted within a wide range. The 

device is provided with a heater for faster drying and snow recognition.

Mounting

Installation of the rain sensor unit should be carried out by only authorised 

personnel. The applicable safety regulations should be followed! The Rain 

Sensor can be installed on a wall/mast mounting bracket. If such accessories 

are not used, care should be taken that the mounting angle is approximately 

30 ° from horizontal. Mounting of the Rain Sensor should be done at a place 

which is freely accessible for rain. Dripping water can adversely delay swit-

ching back or can lead to a permanent ON/OFF of the contacts.

Connection

After removing the sensor cover, the control cable is to be inserted in the 

cable gland M16.Supply voltage is to be connected to the terminals VCC and 

GND. Terminals NC, COM, NO are the potential free changeover contacts for 

switching.

Precautions:

•  The device is suitable only for low voltages and should not be operated 

on mains supply !

•  The relay contact is only suitable for low value signals and should not 

come in contact with mains supply !

•  The protection type is valid only with an intact, complete casing, cover 

Features

•  Safe operation, electrolytic measurement principle

•  Deposition can be detected as rain or snow

•  Operating voltage 12 or 24 V DC/AC

•  Large, heated sensor area for fast drying and operation in winter season

•  Potential free contact output (Relay) 30 V/4 A

•  Sensitivity and switching mode adjustable

•  Universal wall/mast mounting bracket as accessories

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen 

Fon +49 771 83160 | Fax +49 771 831650 | [email protected] | bb-sensors.com

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