VACUUBRAND PC 301 - Manual (Page 15)

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.: 999147 / 17/06/2014
page 15 of 40
We reserve the right for technical modification without prior notice!
Type DVR 2
Pressure transducer capacitive / ceramic
Automatic sleep mode
user selectable operation time 1-999 minutes
or ”On” (continuous operation); factory-set: 15
minutes
Pressure reading
analogue and digital LCD display, selectable
pressure unit: mbar, Torr or hPa
Measuring cycle time
selectable: automatic, 1x within 3s, 1x within
1s, 3x within 1s (factory-set: automatic)
Measuring range 1 mbar - 1080 mbar (1 Torr - 810 Torr)
Maximum permissible pressure at pressure
transducer
1.5 bar absolute
Measurement uncertainty (with transducer care-
fully adjusted and at constant temperature)
< ±1 mbar (0.75 Torr) ± 1 digit
Temperature coefficient < ± 0.07 mbar/K (< ±0.05 Torr/K)
Max. permissible temperature of gaseous media
at the pressure transducer
+80°C*
Permissible ambient temperature
storage / operation
+10°C to +40°C / -10°C to +60°C
Degree of protection according to IEC 529 IP 40
Vacuum connection
small flange DN 16 with screw-in elbow fitting for
PTFE hose DN 10/8 mm
Power supply battery 9V lithium, 1.2 Ah, Ultralife U 9VL
Housing dimensions L x W x H approx. 115 x 115 x 66 mm
Weight approx. 0.375 kg
Technical Data vacuum gauge DVR 2
Gas inlet temperatures
Operating condition Inlet pressure
Permitted range of gas
temperatures at inlet
Continuous operation > 100 mbar (high gas load)
È
+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)
È
-10°C to +80°C*
* if pumping potentially explosive atmospheres: +10°C to +40°C
* if pumping potentially explosive atmospheres: +10°C to +40°C