6 Operation
23 K-350 Operation Manual, Version G
6.2 Setting the distillation time
To set the distillation time, proceed as follows:
• Press “TIME”, the digit for minutes starts to flash.
• Press “TIME” again, the digit for seconds starts to flash.
• Set the distillation time by pressing “UP” and “DOWN”.
• Start the distillation by pressing “START”.
Digits stop flashing after a certain time or after starting the distillation.
When pressing “UP” and “DOWN”, the time is first counted slowly, then faster.
The distillation time can be set in a range of 1 second to 99 minutes 59 seconds.
6.3 Steam generator status
6.3.1 Heating
A constant colon (:) and “HHHH” in the TIME-display as long as “START” is pressed indicates, that the
steam generator is heating.
A flashing colon (:) and a signal sound for 1 second indicates, that the steam generator is ready.
6.3.2 Standby mode (after 30 minutes)
The TIME-display shows (-----).
Press “START” to cancel the standby mode.
6.4 Switching ON/OFF checklist
To switch on and preheat the instrument, proceed as follows:
• Check the filling level of the supply tanks.
• Open the main water tap.
• Switch on the instrument and wait until the steam generator is ready.
• Insert an empty sample tube and an empty receiving vessel.
• Close the protective door.
• Set the distillation time to 2 minutes (see section “Setting the distillation time”) and the steam to
100 % (see section “Setting the steam power”).
• Start the distillation by pressing “START”.
To switch off the instrument, proceed as follows:
• Fill 30 mL distilled water into the sample tube.
• Fill 50 mL distilled water into the receiving vessel.
• Switch off the instrument.
• Close the main water tap.
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