VACUUBRAND DVR 2 - Manual (Page 7)

page 7 of 17
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.:
999001 / 04/04/2012
Technical data
Type DVR 2
Measuring principle
capacitive, absolute pressure,
gas type independent
Pressure transducer ceramic diaphragm (alumina),
Pressure reading analogue and digital LCD display
Pressure units mbar, Torr or hPa (selectable)
Measuring cycle
automatic, once in 3s, once in 1s, three times in
1s (factory-set: automatic)
Automatic sleep mode
operation time: 1-1000 minutes or continuous
operation (”On”), (factory-set: 15 minutes)
Measuring range (absolute) 1080 mbar - 1 mbar (810 Torr - 1 Torr)
Maximum permissible pressure at pressure
transducer
1.5 bar absolute
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)
Maximum permissible temperature of gaseous
media at pressure transducer
continuous operation: 40°C,
for short periods (< 5 minutes): up to 80°C
Ambient temperature range (operation) 10°C to +40°C
Ambient temperature range (storage) -10°C to +60°C
Permitted relative atmospheric moisture during
operation (no condensation)
30% to 85%
Degree of protection according to IEC 529 IP 40
Vacuum connection
small flange KF DN 16 and screw-in hose nozzle
DN 6/10 mm
Power supply battery 9V Lithium, 1.2 Ah, Ultralife U 9VL
Internal volume of measurement chamber 4.23 cm 3 (without hose nozzle)
Weight approx. 375 g
Dimensions L x W x H 115 mm x 115 mm x 66 mm
Wetted parts
Components Wetted materials
Sensor Aluminium oxide ceramic
Sensor housing stainless steel
Seals chemically resistant fluoroelastomer
Vacuum connection / hose nozzle PBT / PPS glass fibre reinforced
We reserve the right for technical modification without prior notice!