ECKELMANN UA 410 L Case Controller, Operating Instruction

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Function of UA 410 L
13 Firmware V1.50 - Doku 2.0 06. April 2016
4 Function of UA 410 L
Parameters mentioned in this section are described in the Menu Structure section. It will normally
not be necessary to change the default settings of these parameters. Parameters that do not allow
changing are termed fixed parameters below.
4.1 Selection of the temperature sensors
The case/coldroom controller uses two-wire NTC temperature sensors to perform control.
All sensors connected must be the same type and parameters are not set separately for the sensors. The type
of sensor used can be defined by the Sensor Type parameter (Menu 6-2-5).
The NTC following sensor types are usable:
L243 (K243) Temperature range -50°C to 50°C; Type K243 sensor can be used in place
of type L243. Characteristics of these two sensors are identical.
K277 Temperature range -50 to 50°C
5K3A1 Temperature range 0 to 100°C
For information on the dimensions see chapter 11.3.
Detaillierte Informationen zu den Temperaturfühlern sind dem Datenblatt “Temperaturfühler” zu entnehmen.
Detailed information on the temperature sensors are contained in the data sheet “temperature sensors”.
All due care must be exercised when installing temperature sensors. Sensor leads need not be
shielded when installed exclusively within the refrigerated display case to be controlled and when
interference is not to be expected (for example from power wires running parallel to the leads. Other­
wise suitable precautions must be taken to protect the sensor leads from external interference.
An offset can be independently applied to the temperature sensors, which is effective for display and control
functions, see Section 4.4.1.