VACUUBRAND MD 1 VARIO-SP - Manual (Page 24)

page 24 of 68
Technical data
Type MD 1 MD 1 VARIO-SP
Maximum pumping speed
(ISO 21360)
cfm
(m 3 /h)
0.7 / 0.8 (a)
(1.2 / 1.4 (a) )
1.1 (2400 rpm)
(1.8)
Ultimate vacuum (absolute)
Torr
(mbar)
1.1
(1.5)
< 0.75 (700 rpm)
(< 1.0)
Maximum permissible inlet
pressure (absolute)
psi
(bar)
16
(1.1)
Maximum permissible outlet
pressure (absolute)
psi
(bar)
16
(1.1)
Maximum pressure difference
between inlet and outlet
psi
(bar)
16
(1.1)
Permissible ambient tempera-
ture storage / operation
°F
(°C)
14 to 140 / 50 to 104
(-10 to +60 / +10 to +40)
Permissible relative atmo-
spheric moisture during
operation (no condensation)
% 30 to 85
Maximum permissible
installation altitude
above mean sea level
ft
(m)
6500
(2000)
Rated motor power hp (kW) 0.11 (0.08) 0.09 (0.064)
No-load speed rpm 1500 / 1800 (a) 0 - 2400 (b)
Maximum permissible range
of supply voltage ( ±10% )
Attention:
Observe specifications of
rating plate!
100-120 V~
50/60 Hz;
200-230 V~
50/60 Hz;
120V~ 60 Hz
24 V DC
safe extra low
voltage (SELV) (c)
Maximum rated current at:
100-120 V~ 50/60 Hz
200-230 V~ 50/60 Hz
120 V~ 60 Hz
24 V DC
A
A
A
A
1.6 / 1.7
0.8 / 0.85
1.7
-
-
-
-
7
Motor protection
thermal cutout,
manual reset (d) ;
MD 1 C/US: addi-
tional fuse 2.5AT
current limitation
(temperature
sensor on the
circuit board)
Degree of protection IEC 529 IP 42 (e) IP 20
Inlet
hose nozzle for tubing I.D. 1/4” (6 mm)
G 1/8”