
PM 205S
Particulate, Gas & Iodine Monitors
PM 205S
Beta Particulate Monitor
The PM 205S monitor forms part of the RAMSYS
product line. It has been developed to continuously
measure the volumetric activity of a radioactive
gaseous sample containing particulates. The sample
is drawn from discharge stacks, reactor building, ven-
tilation ducts or working areas via a pumping system.
It is then admitted into a detection unit where the
particulates are trapped on a lter. It is typically used
for monitoring particulate volumetric activity under
normal operating and mild-environment conditions.
This monitor can operate as a stand alone device or
in conjunction with an iodine monitor (IM 201), and/or
noble gas monitors (NGM 203, NGM 204, NGM 214,
NGM 216) to form a complete monitoring system.
FEATURES
● 1E quali cation and embedded safety related software
● Available under 10 CFR 50 App. B, IEC 61226 and
ASME NQA-1 programs for safety related application
APPLICATIONS
• Effl uent release monitoring
RELATED MONITORS
• IM 201S: iodine monitor
• NGM 203S: high range noble gas monitor
• NGM 204S: low range noble gas monitor
• NGM 214S: low range beta noble gas monitor
• NGM 216S: low range beta noble gas monitor
radiation monitoring
systems
A Mirion Technologies Division
Featuring:

PM 205S
Particulate, Gas & Iodine Monitors
PHYSICAL CHARACTERISTICS
● Radiation detected: beta
● Detector: 2’’ thin plastic scintillator + PMT +
embedded LED
● Filter type: berglass 49 mm (1.9 in)
● Lead shield: 7.5 cm/4 π (3 in/4 π)
● Typical energy range: > 30 keV
● Typical measurement range: 3.7 10
-12
(10
to 10-7 μCi/cc)
-2
to 3.7 10+3 Bq/m3
ENVIRONMENTAL CHARACTERISTICS
● Long term temperature: +10°C to +40°C
(+50°F to +104°F)
● Periodic temperature (processing unit):
-5°C to +55°C (+23°F to +131°F)
● Periodic temperature (detector):
+0°C to +60°C (+32°F to +140°F)
● MTBF (processing unit): > 50 000 hours
● MTBF (detector): > 20 000 hours
● TID: 100 Gy (10
● Protection index: IP65 and IK07
+4
rad)
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 and 1 isolated analog
input (0/4-20 mA)
SIGNALING (Applicable to LPDU only)
● Alphanumeric display: measurement, status…
● Sound alarm: buzzer 90 dBA at 1 meter
● Visual alarm: 3 lights (red, yellow, green)
REFERENCE STANDARDS
● Nuclear: IEC60761-1 and IEC60761-2, IEC61172,
IEC61578
● Environmental: IEC60780, IEEE323
● Seismic: IEC60980, IEEE344
● EMC: 2006/95/CE and 2004/108/CE, EPRI 102323,
MIL STD 461 E, IEC61000-6-2 and IEC61000-6-4
VERSIONS
PNEUMATIC CHARACTERISTICS
● Standard ow rate: 28.3 l/min (1 scfm)
● Pressure drop: 50 mbar (0.73 psi)
MECHANICAL CHARACTERISTICS
● Dimensions: 889 mm x 1397 mm x 1651 mm
(35 in x 55 in x 65 in)
● Weight: 700 kg (1543 lb)
● Color: gray RAL 7030 (decontaminable paint)
● Inlet tube connection: Ø 1 in
● Outlet tube connection: Ø 1/2 in
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
● 230 Vac or 120 Vac
● LPDU or LPU
● With or without check source
● With or without heater
● PIS sampler
ACCESSORIES
● Calibration tools
● Software
● Ethernet
● USB converters
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
151004EN-A
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.