Edwards nEXT730 - Page 28

B8J200880_E - Technical data
Page 27
Table 4 Technical data nEXT1230
nEXT
1230H
High-vacuum connection
DN
200 CF
200 ISO-F
200 ISO-K
Forevacuum connection
DN
40 KF
Pumping speed for
†
1250
1150
1350
1150
N
2
Ar
I · s
-1
He
H
2
Gas throughput
9
3
> 20
> 20
N
2
Ar
mbar · I · s
-1
He
H
2
Compression ratio
‡
> 1 x 10
11
> 1 x 10
11
4 x 10
8
1 x 10
7
N
2
Ar
He
H
2
Ultimate pressure
§
mbar
< 5 x 10
-10
< 5 x 10
-9
< 5 x 10
-9
Maximum permissible
forevacuum pressure for N2
mbar
15
Operating speed
min
-1
42000
Run-up time, approximately
min
2.5
Maximum power consumption
W
660 (default), 800 (maximum)
Power consumption at ultimate pressure
W
50
Type of protection
IP
54
Type 1 (UL 50E)
1
Cooling standard
Water*
Cooling optional
Air*
Cooling water connection
plug-in connection for 6x1 hose / alter-
native G 1/8
Cooling water consumption
l/h
60
Permissible cooling water pressure
(bar(g): bar (gauge) is overpressure,
i.e. atmospheric pressure = 0 bar(g))
bar(g)
6
Permissible cooling water temperature
°C
15 to 35
Weight
kg
32.6
24.9
23.7