KBF-LQC (E5.2) 12/2010
page 31/106
4.6
Connecting the light sensors
Two light sensors to measure illumination and UV-intensity can be
freely positioned in the inner chamber. The sensors are equipped
with a cable of at least 1.3 m length. They are plugged in the LEMO
sockets marked “V-
λ
SENSOR” or “UVA SENSOR” in the inner
chamber.
Figure 15: Lemo sockets to connect the light sensors
The maximum ambient temperature of the light sensors is 60 °C. At higher temperatures the sen-
sors will be destroyed
.
When at least one of the light sensors is plugged in, the maximum temperature of the unit is automatically
limited to 60 °C. If this temperature is reached due to an excessively high temperature set-point or to an
error, the message “LIGHT SENSOR 60 °C!” is displayed (chap. 12).
CAUTION
Excessive inner chamber temperature.
Destruction of light sensors.
∅
With chamber temperature > 60 °C do NOT plug-in the light sensors and do NOT leave
them inside the chamber.
∅
Do NOT set a controller set-point above 60 °C when the light sensors are inside the
chamber
If no light sensor is plugged in, protect the connection sockets by
closing them with the protecting caps attached below to prevent entry
of humidity and dirt accumulation at the contacts.
Figure 16: Connection sockets closed with protecting caps
For the characteristic features of the light sensors see chap. 16.
