VACUUBRAND VNC 2 E - Manual (Page 12)

Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999199 / 28/11/2012
page 12 of 41
Technical data
We reserve the right for technical modifications without prior notice!
Controller VNC 2 E
Pressure transducer
capacitive, absolute pressure transducer made of
aluminium oxide ceramics, independent of gas type
Display
alphanumeric LCD display, illuminated
2 x 8 characters
Pressure units / scale (selectable) mbar, Torr or hPa
Measuring range (absolute) 1100 mbar - 1 mbar (825 Torr - 1 Torr)
Maximum range of pressure control (absolute)* 1060 mbar – 1 mbar (795 Torr – 1 Torr)
Maximum permissible pressure at pressure
transducer (absolute)
1.5 bar (1125 Torr)
Measurement uncertainty (absolute) after careful
adjustment and at constant temperature
< ±1 mbar (0.75 Torr) ±1 digit
Temperature coefficient < ± 0.07 mbar/K (0.05 Torr/K)
Ambient temperature range (operation) 10°C to +40°C
Ambient temperature range (storage) -10°C to +70°C
Permissible relative atmospheric moisture during
operation (no condensation)
30% to 85%
Maximum permissible temperature of gaseous
media at pressure transducer
continuous operation: 40°C**
for short periods up to 80°C**
Max. permissible range of supply voltage 100 V~ (-10%) to 230 V~ (+10%) 50/60 Hz
Fuse (IEC connection) 5x20 mm, T 8 A / 250 V
Power draw (no-load operation) 3 VA
Power draw with VACUUBRAND VV-B 6C in-line
valve and coolant valve VKW-B
max. 10 VA (without switch output)
Serial interface RS 232 C
Supply line VACU•UBUS
voltage supply 110-230 V 50/60 Hz
voltage supply 100-110 V 50/60 Hz
24 V, max. 400 mA
24 V, max. 340 mA
designed for the simultaneous operation (parallel
connection) with the following original accesso-
ries:
one in-line valve VV-B 6C 24V=
one coolant valve VKW-B 24 V=
one venting valve VB M-B 24 V=
Breaking capacity of IEC socket***
ambient temperature 30°C
ambient temperature 40°C
7.2(4) A 250 V~ / 7.2(7.2) A 125 V~
6(4) A 250 V~ / 6(6) A 125 V~
* The actual available range of the vacuum control can be limited due to the ultimate vacuum of the
pump, the developed amount of gas, etc.
** if pumping potentially explosive atmospheres: +10°C to +40°C
*** ohm resistive (inductive) load