2
© 2013 OJ Electronics A/S - EHT Haustechnik GMBH
anschluss (abb. 3):
Klemme
Farbcode
anschluss
1, 2
Versorgungs spannung,
230V AC 50/60 Hz
5, 7
Ausgangsrelais, 16 A Heizkabel
(Abb. 7)
8, 9
Grau/Rosa
(1/2)
Temperaturfühler 1,
EF 50-25 H oder ATF 5
10, 11
Gelb/Weiß
(5/6)
Feuchtefühler,
EF 50-25 H oder F 50-10 RH
13, 14
Braun/Grün
(3/4)
Fühlerheizung EF 50-25 H
oder F 50-10 RH
umwelt und Wiederverwertung
Helfen Sie mit, die Umwelt zu schützen, und
entsorgen Sie Verpackung und gebrauchte
Produkte auf umweltgerechte Weise.
entsorgung des gebrauchten Produkts
Produkte mit diesem Kennzeichen
dürfen nicht mit herkömmlichem
Hausmüll entsorgt werden, sondern
müssen getrennt gemäß den lokal
geltenden Regeln eingesammelt
werden.
abbildungen
Abb. 1. Montage des einzubetonierenden
Abb. 2. Montage des Dachrinnenfühlers
F 50-10 RH und des Außenfühlers ATF 5
1 Thermostat EM 50-1
2 Dachrinnenfühler F 50-10 RH
3 Außenfühler ATF 5
Abb. 3. Anwendungsbeispiel Aussenflachen
Abb. 4 Anwendungsbeispiel Dachrinnen
Abb. 5. EF 50-25 H Anschluss
Abb. 6. F 50-10 RH und ATF 5 Anschluss
Abb. 7. Versorgungsspannung und Heizkabel
Anschluss
Abb. 8. EM 50-1 Eismelder
english
Type EM 50-1 is an electronic thermostat for
economical ice and snow melting on out-
door areas and in gutters. Ice forms due to a
combination of low temperature and moisture.
EM 50-1 detects temperature and moisture and
the snow melting system will usually only be
activated if snow or ice is present. EM 50-1 is
suitable for controlling electric heating cables.
PRoDuCt PRogRaM
EM 50-1
Thermostat.
EF 50-25 H Ground sensor for detecting
temperature and moisture.
F 50-10 RH Gutter sensor for detecting
moisture.
ATF 5 Outdoor sensor for detecting temperature
Ce MaRKing
According to the following standard:
LVD/EMC: EN 60730-2-9.
applied standards
EN 61000-6-3, EN 61000-6-2, EN 60730-1 and
EN 60730-2-9.
The product may only be used if the complete
installation complies with current directives.
The product carries a manufacturer‘s warranty
if installed in accordance with these instructions
and current regulations.
If the product has been damaged in any way,
e.g. during transport, it must be inspected and
checked by authorised personnel before being
connected to the power supply.
WaRning – important safety instructions.
Always disconnect the power supply before
performing installation or maintenance work on
this control unit or any of the components con-
nected to it. This control unit and the compo-
nents connected to it should only be installed
by qualified electricians. Electrical installation
must be performed in accordance with applica-
ble local regulations.
teChniCal Data
thermostat eM 50-1:
Supply voltage ........ 230 V AC ±10%, 50-60 Hz
Output relay (NO) ........................................16 A
On/off differential .....................................0.3 °C
Temperature Setting for Startup ......... 0/+10 °C
Run-on time ....................................... 0-5 hours
Ambient temperature ....................... -10/+50 °C
Ambient air humidity ...........................10-95 %
Enclosure rating .........................IP 20 / Nema 1
Power consumption .................................. 3 VA
Weight ......................................................200 g
Dimensions H/W/D ...................... 86/52/59 mm
ground sensor type eF 50-25 h:
Designed to be embedded in outdoor areas.
Detection ................. Moisture and temperature
Mounting ......................................Outdoor area
Enclosure rating .........................................IP 68
Ambient temperature ....................... -50/+70 °C
Dimensions ....................... H78 mm, Ø63,5 mm
gutter sensor type F 50-10 Rh:
Designed to be mounted in gutter or downpipe.
Is used together with outdoor sensor type ATF 5.
Detection .............................................Moisture
Mounting ............................Gutter or downpipe
Enclosure rating .........................................IP 68
Ambient temperature ....................... -50/+70 °C
Dimensions H/W/D .................... 110/28/16 mm
outdoor sensor type atF 5:
Detection .......................................Temperature
Mounting .................................................... Wall
Ambient temperature ....................... -50/+70 °C
Dimensions H/W/D ...................... 65/50/35 mm
The snow and ice melting system is deactivated
in the event of sensor failure.
SenSoR inStallation
ground sensor eF 50-25 h, fig. 1 + 3:
For installation on outdoor areas where snow
and ice is a regular problem. The sensor must
be embedded with its top flush with the sur-
roundings with the help of the accompanying
installation plate. The sensor cable must be
installed in accordance with current regula-
tions. We recommend that cable pipes be laid
to protect the sensor cable. Detailed installation
instructions are supplied with the sensor.
gutter sensor F 50-10 Rh, fig. 2 + 4:
For installation in a gutter or downpipe on the
sunny side of the building. It is important to
ensure that the sensor contact elements face
against the flow of melt water. Detailed installa-
tion instructions are supplied with the sensor.
outdoor sensor atF 5, fig. 2 + 4:
For use in conjunction with gutter sensor
F 50-10 RH. Can also be used separately for
the detection of temperature alone. The sensor
should be mounted on the wall under the eaves
on the north side of the building.
Sensor cables
with current regulations. They
must never be installed parallel to power cables
as electrical interference may distort the sensor
signal.
thermostat installation
The thermostat should be DIN-rail mounted in
an approved panel.
Connect supply voltage to terminals 1 and 2.
Electrical installation must be performed in ac-
cordance with applicable local regulations.
Setup
EM 50-1 can be set up for ice and snow melting
on outdoor areas in conjunction with EF 50-25H
sensors or in gutters/downpipes in conjunction
with F 50-10 RH and ATF 5 sensors.
• electric heating control with eF 50-25 h
(fig. 5 + 7):
Connect 1 EF 50-25 H sensor to terminals
8-14.
Connect heating cable to output relay ac-
cording to fig. 7.
• electric heating control with F 50-10 Rh +
atF 5 (fig. 6 + 7):
Connect 1 F 50-10 RH sensor to terminals
10-14.
Note that the pink and grey wires must not be
connected.
Connect 1 ATF 5 sensor to terminals 8 and 9.
Connect heating cable to output relay ac-
cording to fig. 7.
how to program the sensitivity:
1. Turn off the power to the ETR2.
2. Connect a wire between terminals 8 and 9
3. Connect a wire between terminals 10 and 11
4. Turn the TIME SET knob to max. (constantly
on).
5. Turn the TEMP SET knob to max. (10).
6. Turn on the power. The LED for ON will flash.
a. The LEDs for TEMP, MOIST and RELAY
will light constantly, indicating the factory
setting for sensitivity level.
7. Program the sensitivity level by turning the
TIME SET knob from 1-5 (1=min., 2=low,
3=normal/factory setting, 4=high, 5=max.).
a. The combination of LEDs will indicate the
programmed sensitivity (see matrix below).
8. Turn off the power and select the required
settings for temperature (TEMP SET) and
after-run time (TIME SET).
9. Remove the wires connecting terminals 8 and
9 and terminals 10 and 11.
10. Install the temperature sensor and moisture
sensor as normal.
turn the tiMe Set knob from 1-5.
the combination of leDs will indicate the
programmed sensitivity:
tiMe Set
knob
Sensitivity
level
leD for
”teMP”
leD for
”MoiSt”
leD for
”RelaY”
1
Minimum
ON
OFF
OFF
2
Low
ON
ON
OFF
3
Factory
Setting
ON
ON
ON
4
High
OFF
ON
ON
5
Maximum
OFF
OFF
ON
WiRing (Fig. 3)
terminal Colour code
Wiring
1, 2
Supply voltage,
230 V AC 50/60 Hz
5, 7
Output relay, 16 A (fig.7)
8, 9
grey/pink (1/2) Temperature sensor 1,
EF 50-25 H or ATF 5
10, 11
yellow/white
(5/6)
Moisture sensor,
EF 50-25 H or F 50-10 RH
13, 14
brown/green
(3/4)
Sensor heating
EF 50-25 H or F 50-10 RH
environment protection and recycling
Help protect the environment by disposing of
the packaging and redundant products in a
responsible manner.
