B+B Sensors REGME 12 V AC/DC User manual

OPERATION MANUAL
Technical changes reserved
0141 0316-212 10.03.2023
Rain Detector REGME
model 12 V AC/DC or 24 V AC/DC
DescriptionDescription
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 3,0 - 8,5 mm
Operating voltage chooseable: 12 V AC/DC ± 10%
24 V AC/DC ± 10%
Output output (relay) 30 V / 4 A,
NO / NC selectable
Operations temperature -30...70 °C
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 REGME24V
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 sensiti-
vity are adjustable. The optionally switched heater prevents freezing or dew
formation and accelerates drying. In the maximum sensitivity setting, the de-
vice is also suitable for recognizing fog. The mast or wall mounting bracket,
which is available as an accessory, enables easy installation.
Typical applications are in nurseries, in agriculture, in building services, but
also in home and garden.
Application
The rain guard is  tted 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
45 ° 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.
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 [phone] | Fax [phone] | [email protected] | bb-sensors.com
1 / 2

OPERATION MANUAL
Technical changes reserved
0141 0316-212 10.03.2023
Rain Detector REGME
model 12 V AC/DC or 24 V AC/DC
Commissioning / Functional notes
When the operating voltage is applied, the relay picks up once due to the
switch-on process, even in dry condition, and drops out after the set time if
the sensor surface is dry.
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
screws and cable gland properly tightened, and the covergasket should
always be available on the sensor cover !
• The suitability for certain applications is to be checked by the user
• The „SENS“ and „TIME“ potentiometers are to be adjusted only with
tools intended for this purpose (e.g. a precision screwdriver or trimmer).
Settings
Signal generator output (optional)
At the connection terminals (Pin BUZ and GND) a passive Piezo signal gene-
rator can be connected. The condition of signal (acustic signal for dry or wet)
can be selected with the plug links S1-S2 or S2-S3. In the default-position
S2-S3, the signal generator is inactive for rain.
Switching mode
The switching mode of the relay (pickup or dropout with rain) can be
selected with the plug links T1-T2 or T2-T3. In the factory settings, link T1-T2
is connected and the relay closes if the sensor surface gets wet.
Heating
The sensor surface is heated, if the link of HZ1-HZ2 is connected. To
ensure faster drying and for operation below freezing point, the heater should
be switched on. For sensing fog, the heater can be switched off.
Automatic heating
The heating is only switched on when the sensor surface is wet.
Sensitivity setting
The sensitivity for detecting rain can be adjusted with the potentiometer
„SENS“. Rotating the potentiometer clockwise results a higher sensitivity. For
detecting rain mostly the middle position of the potentiometer is suitable.
Relay time delay
As soon as rain is detected and the relay has been switched (on or off,
depending on the jumper setting), it is switched back to the starting positi-
on with a time delay. The time during which the relay is switched on or off
(depending on the jumper setting) can be set from approx. 40 millisecond to
165 seconds using the „TIME“ potentiometer. If rain is detected again while
the time delay is active, it starts again.
Indicators
There is a green LED on the device to indicate the operation status and a red
LED to indicate the switch position (meansrelay contact closed).
Maintenance
The Rain Sensor unit is almost maintenance free. The sensor surface
must be occasionally cleaned with a moist cloth ( e.g. once annually,
depending on the place of installation). In case of persistent condition, even if
it does not rain, it triggers due to strong contamination.
Connection Layout
NC Opening switch contact
NO Closing switch contact
CO Common switch contact
AC/DC Operating voltage AC or 24 V DC +10%
AC/GND Operating voltage AC or 0 V
Plug Links Conguration
1 Switch mode signal generator (dry)
2 Common contact to S3 and S1
3 Switch mode signal generator (wet)
4 Signal generator ground
5 Signal generator output
6 Switch mode relay (dry)
7 Common contact to T3 and T1
8 Switch mode relay (wet)
9 Heating
10 Heating
11-16 not occupied
Dimensions
Accessoires
wall / mast mounting bracket
including mouting hardware
Attention
Please avoid extreme mechanical and inappropriate exposure.
The device/product is not suitable for potential explosive areas and medical-
technical applications.
Potentiometer:
SENS
TIME
57,9 mm
71 mm
43 mm
53 mm
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [email protected] | bb-sensors.com
2 / 2