Mirion Technologies GIM 203K User Manual
Featuring:
radiation monitoring
systems
A Mirion Technologies Division
GIM 203K
Gamma & Neutronic Monitors
GIM 203K
Wide Range Gamma Area Monitor
The GIM 203K forms part of the RAMSYS product
line. It has been developed to continuously monitor
gamma dose rate under harsh environment condi-
tions. It is particularly useful for monitoring the dose
rate inside containment and in the reactor building
during and after mild and severe accidents under
harsh operating conditions.
APPLICATIONS
• Radioprotection of workers
○ Containment atmosphere, etc.
• Post-accident operations
RELATED MONITORS
• GIM 201K: low range gamma area monitor
• GIM 202K: wide range gamma area monitor
• GIM 205K: medium range gamma area monitor
• GIM 206K: high range gamma area monitor
FEATURES
● Wide measurement range
● Compact and reliable
● Available with or without display and local signalling
● 1E quali cation and embedded safety related software
● Available under 10 CFR 50 App.B, ASME NQA-1 and
IEC61226 programs for safety related applications
● LOCA proof detector and cable
● Very high TID
● Seismic quali cation
Since norms, speci cations and designs are subject to occasional change, please ask for con rmation of the information given in this publication.
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
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
GIM 203K
Gamma & Neutronic Monitors
PHYSICAL CHARACTERISTICS
● Radiation detected: gamma
● Detector: stainless steel ionization chamber
(KG 221 SER)
● Energy range: 80 keV to 7 MeV
● Typical measurement range: 10
-6
to 10+3 Sv/h
(10-4 to 10+5 rem/h)
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):
○ +165°C (329°F) during 12 hours
○ +225°C (437°F) for accident conditions
● MTBF: > 20 000 hours
● TID:
○ Processing unit: 25 Gy (2.5 10
+3
rad)
○ Detector: 2 10
+6
Gy (2 10+8 rad)
● Protection index:
○ Processing unit: IP65 and IK07
○ Detector: IP67 and IK07
MECHANICAL CHARACTERISTICS
● Dimensions:
○ Processing unit:
390 mm x 196 mm x 187 mm (15.3 in x 7.7 in x 7.3 in)
○ Detector: 240 mm (9.5 in) x Ø 280 mm (11 in)
● Weight:
○ Processing unit: 8.5 kg (18.7 lb)
○ Detector: 24 kg (53 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 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: IEC60951 and IEC60532
● Environmental: IEEE323 and IEC60780, including
LOCA test, RG 1.97
● Seismic: IEEE344 and IEC60980
● EMC: 2006/95/CE and 2004/108/CE, EPRI 102323,
MIL STD 461 E, IEC61000-6-2 and IEC61000-6-4
VERSIONS
● 230 Vac or 120 Vac
● LPDU or LPU
● With or without RS485 junction box
● Mineral or organic detector cable
● Detector cable length: from 10 m (32.8 ft)
to 70 m (229.6 ft); length up to 140 m (459.3 ft) is also
possible, by means of two sets of mineral extension
cables
● Junction box cable length: 2 m (5.65 ft), 5 m (16.4 ft)
or 10 m (32.8 ft)
ACCESSORIES
● Calibration tools
● Software
● USB converters
● Seismic quali ed wall mounting bracket
www.mirion.com
144303EN-F
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