REMKO ATR-4 - Manual (Page 9)

9
I E (internal / external sensor)
If the external sensor is selected but there is not
KTY temperature sensor connected, 65.0 °C ap-
pears on the display. The clock thermostat is not
controlling the output. Preset: Alternative:
I
(internal)
E
(external)
Loc (button lock)
The button lock is displayed by the key symbol.
The button lock prevents the temperatures from
being changed using the rotating knobs. After the
button lock has been released, any temperature
changes are transferred. The button lock is acti-
vated by pressing the PROG program button for 6
seconds. Preset: Alternative:
oFF
(inactive)
on
(active)
H C (Heating / Cooling display)
In Heating mode, the controlled relay on the left-
hand side of the display shows an arrow pointing
up (
r). In Cooling mode, it displays an arrow
pointing down ( s) .
Preset: Alternative:
HE
(heating)
Co
(cooling)
2PPu (2-point / Pulsating function display)
When the control function is switched from 2-
point to pulse and vice versa, this results in the
corresponding parameters being calculated on
the basis of the default settings. These settings
are explained under “Setting the Control Pa-
rameters”. If necessary, the values must be
changed as described in this section. Preset: Alternative:
2-P
(2-point)
PuL
(pulsating)
SEnS (Sensor comparison display)
Constant temperature values should be available
for the sensor comparison. In addition, the sensor
comparison should be performed at normal room
temperatures (approx. 20 °C). For a comparison,
the current temperature displayed by the unit and
the temperature on the sensor must be known.
The difference between these two values can be
set within a ± 3.0K limit under the SEnS menu
item.
Example: The unit displays 20.7 °C. The tem-
perature measuring unit displays a temperature of
19.9 °C on the sensor. – 0.8 must be set under
the SEnS menu item. Preset: Limits:
0.0 K ± 3.0K