Ambient temperature: analyzer	150 °C \| 302 °F \| 423 K
Ambient temperature: electronics	5-50 °C \| 41-122 °F \| 278-323 K
Bakeout temperature: analyzer	300 °C \| 572 °F \| 573 K
Connection	0°
Connection flange (in)	DN 40 CF-F
Connection for gauge	Connection for an ActiveLine or DigiLine gauge with analog relay option
Contribution to neighboring mass: 40 to 41	10 ppm
Detection limit min.: C-SEM (hPa)	2.7 · 10^-15 hPa \| 2.02 · 10^-15 Torr \| 2.7 · 10^-15 mbar
Detector	Faraday C-SEM
Filament	Iridium coated with Y₂O₃
I/O interfaces	Ethernet
Input: Analog	1 x ± 10 V / 12 Bit 8 x ± 10 V / 16 Bit
Input: Digital	7 x 24 V
Input voltage(s)	100 – 240 V AC, 50/60 Hz
Interface: Connection, device side	Extended interface, D-Sub, 15 pins, female; HD D-Sub, 62 pins, female
Ion source	Open, 2 filaments

Mass range	1 – 100 u
Measuring speed	1 ms/u - 16 s/u
Mounting orientation	Arbitrary
Operating pressure max.: Faraday	5 · 10^-4 hPa \| 3.75 · 10^-4 Torr \| 5 · 10^-4 mbar
Operating pressure max.: SEM	5 · 10^-5 hPa \| 3.75 · 10^-5 Torr \| 5 · 10^-5 mbar
Output: Analog	8 x 0 – 10 V / 16 bit
Output: Digital	10 x 24 V
Peak ratio reproducibility	0.5 %
Relay: Number	1 pcs.
Resolution, adjustable at 10 % peak height	0.5 – 2.5 u
Rod system: Diameter	6 mm \| 0.24 inch
Rod system: Length	125 mm \| 4.92 inch
Sensitivity for Ar: Faraday	5 · 10^-4 A/hPa
Temperature: Storage	-25-70 °C \| -13-158 °F \| 248-343 K
Weight	3.2 kg \| 7.05 lb

File	Type	Language	Date	Filesize
Data sheet	PDF	EN	12-02-2023	~ 383.5 KB
Stepfile	STP	EN	03-14-2018	~ 9.6 MB

File	Type	Language	Date	Filesize
Operating instructions QMG 250 PrismaPro® - Compact Mass Spectrometer (BG6001BEN_E)	PDF	EN	09-07-2022	~ 12.9 MB
Operating instructions QMG 250 PrismaPro® - Web UI (BG6002BEN_D)	PDF	EN	08-10-2020	~ 3.1 MB
Operating instructions QMG 250 PrismaPro® - Quick-Start Guide (BG6003BEN_E)	PDF	EN	08-10-2020	~ 2.1 MB

PrismaPro® QMG 250 M1, 1 – 100 u, open ion source, yttriated iridium, I/O-option: Extended Order number: PT M16 112 211