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20901106_EN_MD4_MV2_VARIO_select_V1.0_140818
* Ultimate vacuum at setting ”Pump down” with optimized speed close to the ultimate vacuum
** Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 at 1500rpm and ulti-
mate vacuum with standard silencer at outlet.
Type
MD 4 VARIO select MV 2 VARIO select
Maximum pumping speed
50/60 Hz (ISO 21360)
cfm
(m
3
/h)
3.4
(5.7)
1.9
(3.3)
Ultimate vacuum
(absolute) *
Torr
(mbar)
0.75
(1.0)
0.2
(0.3)
Maximum permissible range of sup-
ply voltage ( ±10% )
Attention: Observe specifications of
rating plate!
100-120 V~ 50/60 Hz
200-230 V~ 50/60 Hz
Maximum rated current at:
100-120 V~ 50/60 Hz
200-230 V~ 50/60 Hz
A
A
6.3
2.5
Inlet
small flange DN 16
Outlet
silencer
A-weighted emission
sound pressure level**
(uncertainty K
pA
: 3 dB(A))
dB(A)
45
Dimensions L x W x H
approx.
in
(mm)
12.8 x 9.3 x 9.6
(325 x 235 x 245)
Weight approx.
lbs. (kg)
42.1 (19.1)
Controller
VACUU•SELECT
with VACUU•SELECT Sensor
Pressure transducer
VACUU•SELECT Sensor;
external gauge head, capacitive,
ceramic diaphragm (alumina),
absolute pressure, gas type independent
Display
color display with touchscreen
Pressure units / scale (selectable)
Torr, mbar or hPa
Measuring range (absolute)
810 - 0.1 Torr (1080 - 0.1 mbar)
Maximum control range (absolute)*
810 - 0.1 Torr (1080 - 0.1 mbar)
Maximum permissible pressure at
pressure transducer (absolute)
1125 Torr (1.5 bar)
Temperature coefficient
<
0.11 Torr/K (0.15 mbar/K)
* The actual vacuum control range in your application might be reduced due to ultimate vacuum
of the pump, volume of gas present, etc.
