Safety Temperature Limit; Operator Panel And Display - IKA LR 1000 basic Mode D'emploi

Connect external cooler:
The reactor can connect an external cooler (e.g. IKA
RC 2 basic or RC 2 control) via the connections (13, 14, see
Fig. 3) at the back of the device. The cooling connections IN
and OUT is labelled accordingly at the back of the device.
There are two connectors included for connecting cooling
hoses. They can be connected to a hose with a 10 mm in-
ner diameter. By positioning and light pressure in the direc-
tion of the connector, the connector is locked/connected to
the cooling connections IN/OUT on the housing.
The connectors are unlocked by coaxially positioning the
unlocking lever and pressing slightly.

Safety temperature limit

The maximum attainable heating temperature is restricted
by an adjustable safety circuit. Once the safety temperature
has been attained, the instrument switches off the heating
function.
The safety temperature must
WARNING
always be set to at least 25 ºC
lower than the flash point of
the fluid used.
Factory setting: max. value
Setting the safety temperature limit
After switching on the instrument, the safety temperature
can be adjusted with screwdriver delivered with the device.
The safety temperature setting will appear on the display.
Do not turn the potentiometer
NOTICE
beyond the clockwise or anti-
clockwise stop, since this will
damage the potentiometer ir-
reparably.
36
LR 1000 basic:
O
Fig. 9
P
R
L
C
K
Potentiometer
B
Fig. 10
Item
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R

Operator panel and display

G
J
Designation Function
Rotating/pressing knob: Start/stop the stirring function
Change the settings of stirring speed
Rotating/pressing knob: Start/stop the heating function
Change the settings of the temperature
Counter/Timer (C/T) button: Switch between "Counter" and "Timer" function
Timer (+): Increase the "Timer" value
Timer (-): Decrease the "Timer" value
Lock key: Activates/deactivates the functions of the buttons and the rotary/push knob
Display, temperature: Display the set and actual temperature
Display, counter/timer: Display the counter and timer values
Display, stirring speed Display the set and actual stirrer speed
LED, timer The LED indicates the "Timer" function is activated
LED, counter The LED indicates the "Counter" function is activated
LED, hh:mm The LED indicates the "Timer" or "Counter" is working with unit hh:mm
LED, mm:ss The LED indicates the "Timer" or "Counter" is working with unit mm:ss
LED, key button Indicates that the function of key and knobs is deactivated
LED, heating The LED indicates the heating function is activated
LED, temperature sensor The LED indicates the external temperature sensor is connected
LED, Set The LED lights simultaneously with the display of the set value for heating function.
H I N
F
M
E
D
A
Fig. 11
37