User guide
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(KUHW/DERUDWRU\FRQWUROOHUJUDGR[35
The laboratory automatic controllers grado 9x1 / PR2 are used for device control in various
laboratory instruments of the Ehret company. Assignment of the correcting variables and/or the
actual values depends on the type of laboratory instrument.
The corresponding input and output paths are marked by means of digit fields.
JUDGR[
&RQWURO
1. Input path for set value (in general, depending upon device set speed / set temperature,
etc.).
0HDVXUHGYDOXHV
1. Set value. (in general, depending upon device actual speed / actual temperature, etc.).
2. Actual value. (in general, depending upon device actual speed / actual temperature, etc.).
3. Interrupt output, 1st limit value.
4. Interrupt output, 2nd limit value.
5. Control variable.
35
&RQWURO
1. Input path for set temperature.
2. Input path for set humidity.
3. Light ON/OFF.
0HDVXUHGYDOXHV
1. Set temperature in °C.
2. Actual temperature in °C
3. Set humidity in %.
4. Actual humidity in %.
5. Light ON/OFF
127(
Detailed information on the corresponding laboratory device features may be found in the separate
operating manual.
For proper communication the transmission parameters of the unit serial interface have to be set to