Technical Design-in Guide SLE G6 | 12-2018 | 2.1 | en
Thermal Aspects
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6.3.2. KTY sensor
(Only in connection with LED Drivers of the TOP and ECO series from 35 W on).
The Intelligent Temperature Management (ITM) function protects the LED light modules against short-term thermal overloads.
To monitor the temperature of the LED, a silicon-based temperature sensor (KTY81-210, KTY82-210) can be connected to the LED
.
Driver
If certain temperature thresholds are exceeded the LED output is gradually reduced or completely
. As a result of this, the
switched off
dimm level and the temperature decreases. If the temperature falls below the the threshold temperature, the LED Driver automatically
returns to nominal operation.
The use of an NTC or PTC resistor is not possible. The device can also be operated without sensor (default setting). The function can
be adjusted via the masterCONFIGURATOR.
6.3.3. Temperature measurement on the module
The temperature of the module must be measured at the t /t point. As
c p
shown in the drawing of the LES 19 beside the t /t point is marked on the
c p
module.
The temperature can be measured with a simple temperature probe. In
actual practice, thermocouples (e.g. B & B Thermotechnik thermocouple,
K-type) have been successfully used for taking measurements. Such
thermocouples can be attached directly to the t /t point with
c p
heat-resistant adhesive tape or a suitable adhesive. The measured values
are recorded by an electronic thermometer (e.g. "FLUKE 51", VOLTCRAFT
K202 data logger).
The maximum possible temperature must be determined under
worst-case conditions (ambient temperature of the luminaire, installation
of the luminaire) for the relevant application. Before the measurement is
taken the luminaire should be operated for at least 4 hours in a
draught-free room.
I
NOTICE
The fan driver must be operated with suitable KTY sensors and wiring!
For more information please consult the corresponding LED Driver data sheet.
