Technical data
Units
ATH 500 M
ATH 500 M
ATH 500 MT
Pumping speed
N2
l/s
350
550
550
Ar
l/s
320
530
530
He
l/s
310
390
390
H2
l/s
170
190
190
Compression ratio
N2
> 2 · 10
7
> 2 · 10
7
> 2 · 10
7
Ar
> 8 · 10
6
> 8 · 10
6
> 8 · 10
6
He
> 1 · 10
4
> 1 · 10
4
> 1 · 10
4
H2
> 2 · 10
2
> 2 · 10
2
> 2 · 10
2
Maximum flow
2)
3)
4)
N2
hPa l/s
67.6
67.6
8.5
Ar
hPa l/s
42.2
42.2
5
He
hPa l/s
> 169
> 169
> 16.9
H2
hPa l/s
> 169
> 169
> 16.9
Maximum pressure at
inlet
4)
N2
hPa
1
1
0.04
Ar
hPa
1
1
0.02
He
hPa
10
10
> 0.1
H2
hPa
10
10
> 0.1
Maximum pressure at
exhaust
5)
N2
hPa
2.6
2.6
2.6
Ar
hPa
3.3
3.3
3.3
He
hPa
1
1
1
H2
hPa
0.25
0,25
0.25
Ultimate pressure
6)
hPa
< 1 · 10
-8
< 1 · 10
-8
< 1 · 10
-8
Nominal rotation
speed
min
-1
(Hz)
50 000 (833)
50 000 (833)
50 000 (833)
Stand-by speed
min
-1
(Hz)
15 000 (250) to
50 000 (833)
15 000 (250) to
50 000 (833)
15 000 (250) to
50 000 (833)
Maxi. bake-out tem-
perature
°C
120
120
-
Maxi. regulation tem-
perature
7)
°C
-
-
65
Leak rate
hPa l/s
< 5 · 10
-8
< 5 · 10
-8
< 5 · 10
-8
Purge flow rate
2)
sccm
50
50
50
Supply voltage
VDC
48
48
48
Start-up time
8)
mn
< 2
< 2
< 2
Start up power
Watt
< 560
< 560
< 560
Power consumed at
ultimate pressure
Watt
< 100
< 100
< 100
Power at minimum
stand-by speed
Watt
< 50
< 50
< 50
Vibration level (at
nominal speed)
µm
< 0.01
< 0.01
< 0.01
Sound level
dB(A)
< 42
< 42
< 42
Water cooling flow
l/mn
1
1
1
1) The products that have customer specificities may have different characteristics.
2) Standard reference conditions: T0 = 273,15 K - P0 = 1013.25 hPa.
3) At nominal speed with 25 °C water cooling temperature.
4) With an exhaust pressure < 0.4 hPa, depends on external conditions (temperature, water flow rate, ambient tempera-
ture). For other conditions, contact us
5) Reduced maximum flow rate, ultimate pressure at exhaust without loss of flow rate speed. Depends on environmental
conditions.
6) With ISO-F flange (best with CF-F flange). Contact us.
7) This maximum temperature influences the maximum flow, contact us.
8) Up to 90 % of full rotation speed, with exhaust pressure < 0.1 hPa.
Technical data and dimensions
72/78