Timer Functions - Heidolph Hei-VAP Precision Originalbetriebsanleitung

The entry „fi nal pressure" can be only selected with the entry „ Multiple distillation =
yes". If the temperature on the AUTOaccurate sensor drops, the pressure in the system is
further reduced until
a) the control temperature is reached again or
b) the fi nal pressure is reached.
The system responds similar to „Stop all" in case b.) (see 6.14). The new settings are
accepted by the „accept" entry. It is changed to the actual value display.
All changes in the menu view are discarded with softkey „Esc" (1).
The parameters are stored under a name to be selected by using softkey
„Store Favorite" (1).
Softkey „Start all" and „Stop all"
A distillation can be started and stopped automatically by using softkey „Start all" (1) and
„Stop all" (1), as described in 6.14.

Timer functions


The timer function stops the distillation after a set period.
Selecting the entry by turning the Select Knob Hei-GUIDE (6):
1. Select the entry „timer" by turning the Select Knob Hei-GUIDE (6) and call up the
selected entry to be changed by pressing the Select Knob Hei-GUIDE (6) again.
2. Set the desired timer function for the desired time by using control knob Select Knob
Hei-GUIDE (6).
3. Pressing it again confi rms the change.
The time is running backwards at the start with pressing the "Start Vacuum" soft key
and "Start All" soft key. The distillation is interrupted after completing the set time.
▪ The system will be ventilated.
▪
The rotation is switched off.
▪ The lift is raised (only motor lift models).
If required change lift settings in "Setup".
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Operation
If the distillation will not be terminated after reaching a defi ned
pressure, enter value 1 as fi nal pressure.
✓ Valve-controlled pump is installed.
The setting range can be adjusted in the menu entry „hysteresis"
(range 1 to 50 mbar).
✓ Speed-controlled pump is installed.
The setting range is adjustable from 10 - 100 [%] in 10% incre-
ments in the „speed" menu entry.
The setting range is adjustable from 1 - 1440 [min] in 1 minute
increments in the „timer" menu entry. Setting „off" is comparable to 0.
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