VITA - Vacumat 4000 Premium
39/03/04
Vita Zahnfabrik H.Rauter GmbH&Co.KG 79704 Bad Säckingen
8
5 Temperature
rise
In the program the temperature rise is shown in °C/min and in min/sec. The entry value can be selected in
°C/min (20°C – 120°C) or min/sec (2:00 – 40:00). The unit automatically calculates and displays the second
value. Values entered outside the permitted range are not accepted, and the last valid entry value is
displayed. If the entry of a value for temperature rise in min/sec. is lower than the calculated temperature rise
of 20°C/min, or higher than the maximum value of 120°C, a valid temperature rise time is automatically
entered in min./sec.
If the pre-drying temperature or the firing temperature is altered after entering the temperature rise rate, the
value °C/min is corrected, the time in min/sec. remains as long as this value is within the permitted range.
5.1 Vacuum
display
The vacuum display shows the value in %.
Assuming atmospheric pressure of 1000 mbar at sea level,
100 % = - 1000 mbar (not obtainable)
95 % = -950 mbar or 50 mbar absolute
90 % = -900 mbar or 100 mbar absolute
The vacuum value reached depends on the performance of the vacuum pump used and lies in the range of
85 – 95% (150 mbar – 50 mbar absolute)
If during a firing program the vacuum level of 30% is not reached within 15 sec., the firing program is aborted
and the error message
Vacuum
is shown on the display (see section on error messages). Return with key
"Continue" (confirm) and 2 x Standby key.
