ba_tp18600e_e.doc/03/04/e
Version 0.2
Page 5
7 - Led SET
no function for temeprature calibrator
8 - Led AT/ST
no function for temeprature calibrator
9 – Display PV
It normally indicates the temperature of the heating block.
During programming it indicates SP1 (Set Point 1)
10 - Display SV
It normally indicates the active Set value of the heating block
3.6 Switching on of the calibrator
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After connection with the mains the fan starts immidiatly.
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After switching on the mains power switch the controller starts with initialisation.
The upper display (PV) indicates tESt.
The lower display indicates the actual version of the controller e.a. rL 1.2
After 5 sec. the initialisation is complete and the standard mode is selected automatically.
The upper display (PV) indicates the actual heating block temperature
The lower display (SV) indicates the actual set value of the heating block
The installed electrical heating cartridge heats the brass block up from ambient temperature to the adjusted set
point value.
3.7 Indication of the block temperature and set temperature
The red, 4-digit, 7-segment LED (PV) shows continuously the temperature of the heating block. If the, in the
green , 4-digit, 7-segment LED (SV), adjusted set temperature in the heating block is reached, the heating
energy radiated from the block is dispensed by short switching-on pulses of the heating cartridge, so that the
temperature inside of the block is kept constant.
3.8 Adjustment of the block temperature
The switch-on time of the heating is indicated by the red LED OUT1.
While during the heating-up period a permanent light shows the supply of heating energy. The flashing of the
LED shows that the temperature of the heating block is close to the adjusted set temperature, and therefore the
heating energy is now only supplied in short intervalls.
The control is carried out as a PID control.
In order to obtain good stability of the temperature, the cycle time “tcr1” has a low value with a very frequent
intervention of the control output.
