Offset Calibration; Factory Settings; Troubleshooting - AEG EM 50-2 Bedienungsanleitung

EM 50-2
Zone 2 temperature can be calibrated here. With
OFFsEt t2 0.0C
EF 50-25 H sensor, the temperature shown on the
EM 50-2 display is always the core temperature
of the sensor. For calibration, please see page 13.
Outdoor temperature can be calibrated here. The
OFFsEt Out. 0.0C
temperature, recorded by the ATF outdoor sensor,
can be adjusted so that the exact temperature is
displayed on EM 50-2. Measure the temperature
beside the sensor using a thermometer. Adjust
the necessary offset using the encoder button.
Press OK.
In auto mode, sensor heating is switched off
sEnsORHEat autO
during periods when snow melting is active. In
special options or extreme cold weather the sen-
sor heat can be selected on continuously. Select
ON and press OK.
The moist control on sensor can be switched off
MOist CtRl On
here. The termostat will only control snow and ice
melting after the set temperature, see SET TEMP.
Select OFF for switching off the moist control and
press OK.
Note that energy consumption/costs will
rise with lacking moisture control.
Sensor sensitivity can be adjusted in 5 steps:
sEnsitiVitY nORM
MIN - LOW - NORM - HIGH - MAX. To change
sensitivity, press OK, turn the encoder button to
the desired setting and confirm with OK.
Menu language is selectable here. Select your
languagE EnglisH
preferred language and press OK
All EM 50-2 factory settings can be restored here.
FaCtORY REsEt
Selecting this option deletes all customised set-
tings.
Whether setup failure in startup menu, or new
FaCtORY REsEt
hardware connection has been done, The primare
REINSTALL setup must be changed in STARTUP menu. Se-
PASSWORD XXXX
lect PASSWORD and turn the encoder button to
the factory code (1202) The controller will then re-
turn to the startup menu, see STARTUP.
Select this option and press OK to return to the
EXit
main menu.
Restart
When changing the settings or require a new process start, the EM
50-2 can be restarted in this menu.
Restart operation. Keeping your current settings.
REstaRt
The EM 50-2 will go to the initial status display.

Offset calibration

If it is necessary to calibrate the temperature measured by the
GROUND SENSOR sensor, please follow the steps below:
1. Disconnect the sensor from terminals 11 and 12 (sensor heating)
of the EM 50-2.
2. Wait a few hours until the sensor has acquired the same tempera-
ture as the ground.
3. Measure the real ground/sensor temperature and compare it with
8
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the temperature shown on the EM 50-2 display.
4. Program the offset for the sensor concerned to match the differ-
ence between the two temperatures (displayed/real). Adjust the
necessary offset using the encoder button. Press OK.
5. Reconnect the sensor to terminals 11 and 12 of the EM 50-2.
NOTE: With EF 50-25 H sensor, the temperature shown on the EM
50-2 display is always the core temperature of the sensor.

Factory settings

setup Factory settings
Application Electric
Zone 1 GROUND SENSOR
Zone 2 OFF
Select scale Celsius
Afterrun time Zone 1 2.00 hours
Afterrun time Zone 2 2.00 hours
Temp. offset Zone 1 0.0°C/0.0°F
Temp. offset Zone 2 0.0°C/0.0°F
Temp. offset ATF 0.0°C/0.0°F
Temperature setpoint Zones 1+2 3.0°C/37.4°F
OFF temperature Zones 1+2 OFF
Sensor heating Zones 1+2 AUTO
Moisture control Zones 1+2 ON
Sensitivity Zones 1+2 NORM

troubleshooting

By errors in the snow melting system, it is recommendable to
check the setup of the EM 50-2. Activate the menu by pressing the
adjustment knob, press SHOW INFO and readout the programmed
application. By errors in the setup, activate REINSTALL with factory
code 1202.
Check that all connections are placed correctly, and that cables are
fastened in the clamps.
ice/snow does not melt
• does the display show heat On in zone 1 / 2?
YEs:
o Wait 1-2 hours.
o Check under the snow, if the snow is beginning to melt the
system is OK.
o Check heating cables for defects, bad connections, incorrect
connections.
o It is too cold for snow melting (power/m2) or undersized heating
cables/ water heating system.
nO:
o The temperature is higher than SET TEMP. Adjust SET TEMP to
higher temperature.
o The snow around the ground sensor is melting/drifting snow has
exposed the sensor.
AFTERRUN time must be increased. Alternatively, FORCED
HEAT can be activated.
o Igloo effect around the sensor. The ground sensor has melted
an insulated hollow under the snow. Activate FORCED HEAT or,
alternatively, set MOIST SENSOR to OFF.
o The temperature is lower than the OFF TEMP setting.
Depending on dimensioning, the system has a lower temperature
limit, at which the system can melt the snow. Try melting the
English
Own settings