15 Technical data and dimensions
15.1 General
mbar
bar
Pa
hPa
kPa
Torr | mm Hg
mbar
1
1 · 10
-3
100
1
0.1
0.75
bar
1000
1
1 · 10
5
1000
100
750
Pa
0.01
1 · 10
-5
1
0.01
1 · 10
-3
7.5 · 10
-3
hPa
1
1 · 10
-3
100
1
0.1
0.75
kPa
10
0.01
1000
10
1
7.5
Torr | mm Hg
1.33
1.33 · 10
-3
133.32
1.33
0.133
1
1 Pa = 1 N/m
2
Tbl. 28:
Conversion table: Pressure units
mbar l/s
Pa m
3
/s
sccm
Torr l/s
atm cm
3
/s
mbar l/s
1
0.1
59.2
0.75
0.987
Pa m
3
/s
10
1
592
7.5
9.87
sccm
1.69 · 10
-2
1.69 · 10
-3
1
1.27 · 10
-2
1.67 · 10
-2
Torr l/s
1.33
0.133
78.9
1
1.32
atm cm
3
/s
1.01
0.101
59.8
0.76
1
Tbl. 29:
Conversion table: Units for gas throughput
15.2 Technical data PrismaPro QMG 250 F
Standard conditions
All values were measured after a 30 minute heat-up phase under standard conditions as
long as not specified otherwise.
Parameter
QMG 250 F1
QMG 250 F2
QMG 250 F3
Detector type
Faraday
Mass range
1 to 100 u
1 to 200 u
1 to 300 u
Connection flange
DN 40 CF-F
Vacuum required
(max. operating pressure)
< 5 × 10
-4
hPa
Maximum underground cross-sensitiv-
ity at 2 u
< 5 ppm
< 65 ppm
< 100 ppm
Detection limit
QME 250 (straight)
4 × 10
-13
hPa
5 × 10
-13
hPa
7 × 10
-13
hPa
QME 250 (angled)
1 × 10
-12
hPa
2 × 10
-12
hPa
4 × 10
-12
hPa
Sensitivity
Open ion source
> 5 × 10
-4
A/hPa
> 4 × 10
-4
A/hPa
> 3 × 10
-4
A/hPa
Usage
Installation location
Indoor, weatherproof
Ambient conditions
Protection degree
IP 30
Relative humidity
≤ 98 % at operating temperature, non-condensing
Temperatures
Operating temperature (analyzer)
≤ 200 °C
Technical data and dimensions
76/86
