Heidolph ROTAVAC Vario pumping unit - Manual (Page 14)

page 14 of 61
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.: 999248 / 28/04/2011
* The actual vacuum control range in your special application might be reduced due to ultimate vacu-
um of the pump, quantity of gas occurring etc.
We reserve the right for technical modification without prior notice!
3.1 Gas inlet temperatures
Operating condition Inlet pressure
Permitted range of gas
temperatures at inlet
Continuous operation > 100 mbar (high gas load) +10°C to +40°C
Continuous operation < 100 mbar (low gas load)
è
0°C to +60°C
Short-time (< 5 minutes) < 100 mbar (low gas load) -10°C to +80°C
Controller
Pressure transducer
ceramic diaphragm (alumina), capacitive, abso-
lute pressure, gas type independent
Display LCD graphic display, illuminated
Pressure units / scale (selectable) mbar, Torr or hPa
Measuring range (absolute) 1080 mbar - 0.1 mbar (810 Torr - 0.1 Torr)
Maximum control range with internal pressure
transducer (absolute)*
1060 mbar – 1 mbar (795 Torr – 1 Torr),
Turbo-Mode (<1 mbar / Torr)
Resolution 0.1 mbar
Maximum permissible pressure at pressure
transducer (absolute)
1.5 bar (1125 Torr)
Maximum permissible temperature of gaseous
media
continuous operation: 40°C,
for short periods up to 80°C
Measurement uncertainty (absolute) after careful
adjustment and at constant temperature
<±1 mbar (0.75 Torr)
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
Permitted relative atmospheric moisture during
operation (no condensation)
30% to 85%
Maximum permitted current of connected valves
(connected components)
4 A
Venting connection hose nozzle for hose 4-5 mm
Maximum admissible pressure at venting
connection
1.2 bar absolute
Degree of protection according to IEC 529
(front side)
IP 42
Interface RS 232 C