6 Operating CCU 1000
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B40IB006EN-D
6.2.1 Status LEDs
There are three types of status LEDs. The first type
of LEDs is located on the right side of the display
and gives additional information on the value that is
shown on the display.
Fig. 15: LEDs for value of CCU 1000
The next type of LEDs on the right side of the front
panel gives information about the status of the in-
strument.
Fig. 16: LEDs for status of CCU 1000
The HEATING LED has a special function besides
giving information about active/inactive heating pro-
cess. If this LED is blinking, the instrument is in the
status STANDBY. This status is active if the sample
holder flange of the instrument is not mounted. After
mounting the sample holder, the LED stops blinking
and the instrument is ready to use.
The last type of LEDs indicates the actual active slot
of CCU 1000. At delivery only slot 1 is used.
Fig. 17: LEDs for active slots of CCU 1000
6.3 Display
The display consists of four 7-segments elements
that show depending on the LEDs on the right side
of the display (see chapter 6.2.1) different informa-
tion. In the normal operation mode (process value
LED is green), the display shows the actual tem-
perature of the sample holder of HTK 1200N.
By pressing the SCROLL button, the set point LED
is green, which means that the target set point tem-
perature can now be changed by using the UP or
DOWN button.
By pressing the SCROLL button twice, the Error
LED is red. The display in this case contains infor-
mation about the number of errors that are currently
active and also the corresponding error code. This
is shown in the following way:
XExy
X…number of actual active errors
E…indicates an error
xy…corresponding error code
By pressing the UP/DOWN button it is possible to
switch between all active error codes.
The complete list of all possible errors is shown in
chapter 10.1.
LED on
Display shows
Process value
actual temperature
Set Point
the actual set point
Error
an occurring error
LED
Condition
COOLING
cooling active
HEATING
heater active
OUT1
additional connector OUT1
on rear panel of CCU 1000 is
active
OUT2
additional connector OUT2
on rear panel of CCU 1000 is
active
