OPERATION MANUAL
Technical changes reserved
0141 0316-212 20.07.2020
Rain Detector REGME
model 12 V AC/DC or 24 V AC/DC
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
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.
Please note that no function takes place in the end position!
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. 90 to 330 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
REL NC
Opening switch contact
REL NO
Closing switch contact
REL CO
Common switch contact
AC/DC
Operating voltage AC or 24 V DC +10%
AC/GND
Operating voltage AC or 0 V
Plug Links Configuration
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.
Potentio-
meter:
SENS
TIME
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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