![](/html/cb/cb06/cb06d1feb23da0be6ac97f721361b9e439fd518efe9833c14bae4bf0a56fcd4b/bg1.png)
ABPM 204M
Particulate, Gas & Iodine Monitors
ABPM 204M
Mobile Alpha Beta Particulate Monitor
The ABPM 204M forms part of the RAMSYS product
line.
Its small and light weight extendable sensor allows
this monitor to function locally next to the respiratory
tract of workers. A dual silicon detector performs the
gamma compensation. A processing
algorithm provides a dynamic compensation of radon
and thoron solid progenies.
Operating costs are minimised through unattended
operation, by the use of a continuous lter and the
on-line spectroscopy capability. All these features
make the ABPM 204M an ef cient diversi ed and
cost effective tool.
FEATURES
● Dynamic compensation of the radon and thoron solid
progenies
● Optimized beta measurement for environments with low
rate of radon
● On-line alpha spectrometry
● Up to 6 months lter cassette autonomy
● Optimized alpha measurement for low energies
233
235
(U
, U
, U
238
)
APPLICATIONS
• Radioprotection of workers
○ Containment atmosphere
○ Control room air, etc.
RELATED MONITORS
• ABPM 203M: plutonium optimized version
• ABPM 203P: portable version
radiation monitoring
systems
A Mirion Technologies Division
Featuring:
![](/html/cb/cb06/cb06d1feb23da0be6ac97f721361b9e439fd518efe9833c14bae4bf0a56fcd4b/bg2.png)
ABPM 204M
Particulate, Gas & Iodine Monitors
PHYSICAL CHARACTERISTICS
● Radiation detected: alpha, beta and gamma
● Detector: dual large area silicon
● Filter type: FSLW2 (MILLIPORE)
● Typical energy windows:
○ Alpha: 2 MeV to 10 MeV
○ Beta: 80 keV to 2.5 MeV
○ Gamma: 80 keV to 2.5 MeV
● Typical measurement range:
○ Alpha: 10
(2.7 10
○ Beta: 1 to 3.7 10
(2.7 10
-2
to 3.7 10+6 Bq/m
-13
to 10-4 μCi/cc)
-11
to 10-4 μCi/cc)
+6
Bq/m3
3
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: 100 Gy (10
+4
rad)
SIGNALING
● Alphanumeric display: measurement, status…
● Sound alarm: buzzer 90 dBA at 1 meter
● Visual alarm: 3 lights (red, yellow, green)
REFERENCE STANDARDS
● Nuclear: IEC60761, IEC61172, IEC61578
● EMC: 2006/95/CE and 2004/108/CE, IEC61000-6-2
and IEC61000-6-4
VERSIONS
● 230 Vac or 120 Vac
● Hoses length: 1.5 m (5 ft), 3 m (10 ft), 10 m (33 ft) or
20 m (66 ft)
ACCESSORIES
● Calibration tools
● Software
● USB converters
● Radiomodem
PNEUMATIC CHARACTERISTICS
● Standard ow rate: 35 l/min (1.24 scfm)
● Pressure drop: 100 to 350 mbar (1.45 to 5.07 psi)
MECHANICAL CHARACTERISTICS
● Dimensions: 1270 mm x 360 mm x 303 mm (50 in x
14.2 in x 12 in)
● Weight: ~ 26 kg (~ 57 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
144103EN-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.