Physical characteristics, Radiation detected: beta and gamma, Detector: dual large area silicon – Mirion Technologies NGM 204L User Manual
Page 2: Typical energy windows, Beta: 80 kev to 2.5 mev, Gamma: 80 kev to 2.5 mev, Typical measurement range, Kr: 3.7 10, Bq/m, Μci/cc)
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NGM
204L
Particulate, Gas & Iodine Monitors
PHYSICAL CHARACTERISTICS
●
Radiation detected: beta and gamma
●
Detector: dual large area silicon
●
Sampling chamber: 300 ml (300 cc)
●
Typical energy windows:
○
Beta: 80 keV to 2.5 MeV
○
Gamma: 80 keV to 2.5 MeV
●
Typical measurement range:
○
85
Kr: 3.7 10
+4
to 7.4 10
+13
Bq/m
3
(10
-6
to 2 10
+3
μCi/cc)
○
133
Xe: 3.7 10
+4
to 3.7 10
+12
Bq/m
3
(10
-6
to 10
+2
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: 100 Gy (10
+4
rad)
PNEUMATIC CHARACTERISTICS
●
Standard fl ow rate: 35 l/min (1.24 scfm)
●
Pressure drop: according to the fi lter dust loading
MECHANICAL CHARACTERISTICS
●
Dimensions: 864 mm x 725 mm x 440 mm
(34 in x 28.5 in x 17.3 in)
●
Weight: ~ 220 kg (~ 495 lb)
●
Color: gray RAL 7030 (decontaminable paint)
●
Inlet tube connection: Ø 12 mm OD (1/2 in)
●
Outlet tube connection: Ø 12 mm OD (1/2 in)
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
●
EMC: 2006/95/CE and 2004/108/CE, IEC61000-6-2
and IEC61000-6-4
VERSIONS
●
230 Vac or 120 Vac
●
LPDU or LPU
●
With or without dust fi lter holder
●
Pumping unit
●
Monitor wall or fl oor fi xing plate
ACCESSORIES
●
Calibration tools
●
Software
●
USB converters
www.mirion.com
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