Mirion Technologies NGM 209M User Manual
NGM 209M
Particulate, Gas & Iodine Monitors
NGM 209M
Mobile Low Range Noble Gas Monitor
The NGM 209M monitor from the RAMSYS product
line has been developed to sample air in discharge
stacks or ventilation ducts. The dual silicon diode
detector integrated in a 4 π/3 cm (4 π/1.18 in) lead
shielded sample volume guarantees high reliability of
the measurements.
The rst silicon diode detects the beta/gamma ra-
diation from sample volume and the gamma ambient
radiation (background). The second one detects
gamma radiation from the sample volume and the
gamma ambient radiation. This allows noble gas beta
measurement with dynamic gamma compensation by
the processing algorithms.
FEATURES
● Dynamic gamma radiation compensation with shielded
gas detection sensor
● Absorbed gamma dose rate indication
● Operate as a stand-alone monitor and/or can be
integrated in a RAMSYS network using a wireless
network (radiomodem) or a RS485 serial link
APPLICATIONS
• Radioprotection of workers
○ Containment atmosphere
○ Control room air, etc.
RELATED MONITORS
• NGM 202L: noble gas monitor
• NGM 203S: accident range noble gas monitor
• NGM 204L: low range noble gas monitor
• NGM 204S: low range noble gas monitor
radiation monitoring
systems
A Mirion Technologies Division
Featuring:
NGM 209M
Particulate, Gas & Iodine Monitors
PHYSICAL CHARACTERISTICS
● Radiation detected: beta and gamma
● Detector: dual large area silicon
● Sampling chamber: 76 ml (76 cc)
● Typical energy windows:
○ Beta: 80 keV to 2.5 MeV
○ Gamma: 80 keV to 2.5 MeV
● Typical measurement range: 3.7 10
+4
to 10
+10
Bq/m3
(10-6 to 2.7 10-1 μCi/cc)
ENVIRONMENTAL CHARACTERISTICS
● Long term temperature: +10°C to +40°C
(+50°F to +104°F)
● Periodic temperature:
-5°C to +55°C (+23°F to +131°F)
● MTBF: > 20 000 hours, with preventive maintenance
● TID (processing unit): 100 Gy (10
+4
rad)
PNEUMATIC CHARACTERISTICS
● Standard ow rate: 22 l/min (0.71 scfm)
● Pressure drop: according to the lter dust loading
SIGNALING
● Aphanumeric display: measurement, status…
● Sound alarm: buzzer 90 dBA at 1 meter
● Visual alarm: 3 lights (red, yellow, green)
REFERENCE STANDARDS
● Nuclear: IEC60761
● EMC: 2006/95/CE and 2004/108/CE
VERSIONS
● 230 Vac or 120 Vac
ACCESSORIES
● Calibration tools
● Software
● USB converters
● Remote sampling line with outlet and inlet hoses
● Radiomodem
MECHANICAL CHARACTERISTICS
● Dimensions: 1270 mm x 360 mm x 303 mm
(50 in x 14.2 in x 12 in)
● Weight: ~ 30 kg (~ 66 lb)
● Color: gray RAL 7030 (decontaminable paint)
ELECTRICAL CHARACTERISTICS
● Power supply: 230 Vac – 50 Hz or 120 Vac – 60 Hz
● Data link outputs: 1 RS232 and 2 isolated RS485
● Alarm relays: 3 SPDT relays
● I/O: 2 isolated analog outputs (0/4-20 mA)
Mirion Technologies (MGPI) SA
Route d’Eyguières
FR-13113 Lamanon
France
T +33 (0) 4 90 59 59 59
F +33 (0) 4 90 59 55 18
Mirion Technologies (MGPI) Inc
5000 Highlands Parkway
Suite 150
Smyrna, GA 30082
USA
T +1 770 432 2744
F +1 770 432 9179
Mirion Technologies (MGPI H&B) GmbH
Landsberger Strasse 328a
DE-80687 Munich
Germany
T +49 (0) 89515 13-0
F +49 (0) 89515 13 169
www.mirion.com
144114EN-E
Mirion Commercial (Beijing) Co., Ltd.
Shanghai Jiangchang Commercial Branch
Room 801, 78 Jiangchang SanLu
Zhabei District, Shanghai 200436
PR of China
T +86 21 6180 6920
F +86 21 6180 6924
Since norms, speci cations and designs are subject to occasional change, please ask for con rmation of the information given in this publication.
Mirion, Mirion Technologies and MGP Instruments are trademarks and/or registered trademarks of Mirion Technologies, Inc. and/or its a liates in the United States and/or other countries.
All other trademarks are the property of their respective owners.
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