Chemglass CG-1994 - Manual (Page 6)

6 Optimag 082011
Setting the safe temperature limit
The temperature set for the heating plate (maximum 310 °C) will
be at least 10 °C lower than the safe temperature limit.
Warning: The safe temperature limit must always be set at
least 25 °C lower than the flash point of the media to be pro-
cessed.
Functional check of inactivating the safety circuit
When using an external PT1000 temperature sensor, the user can
choose between two types of control:
PI mode
Good control results, minimised overshooting, slow rise in tempe-
rature.
2P mod (two-point controller)
Maximum heating rate, increased overshooting
Factory setting: PI mode
Operating the device in mode A or B
Mode A
All settings will be stored if the device is switched off or discon-
nected from the power supply. The agitation and heating functions
will be set to OFF when the device is powered on.
Mode B
All settings will be stored if the device is switched off or discon-
nected from the power supply. The agitation and heating functions
will be set to ON or OFF when the device is powered on, depen-
ding on the previous status of the device.
Factory setting: mode A
The mode selected will be shown on the dis-
play when the device is started up.
Change the mode
The safe temperature limit that has been set will
be displayed when the device is switched on.
Factory setting: 360 °C
Adjustment range: > 50 - 360 °C
Setting operating mode
xx A
(x: software version) mode
Move device switch (A) to the OFF position
Press and hold rotary knobs (C and D)
Move device switch (A) to the ON position
Release rotating knobs (C and D)
„ The set value is indicated on the
display (F)
Setting the safe temperature limit
360 SAFE
i
xx A
Fig. 5
Move device switch (A) to the ON position
The safe temperature limit can be adjusted using a screwdriver
„ The set value is indicated on the display (F)
150 SAFE
i
Position the safe temperature limit at the left (50 °C)
Move device switch (A) to the ON position
„ Indication on the display (F)
i Err 25
Setting temperature control mode
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