Mirion Technologies DGK 250 User Manual
Featuring:
radiation monitoring
systems
A Mirion Technologies Division
DGK 250
Neutron Flux Instrumentation
DGK 250
Digital Power Range Channel
The DGK 250 digital power range channel forms part
of the proTK™ product line. It has been designed for
neutron ux monitoring in the power range in combi-
nation with neutron ionization chambers. Hardware
and software of the DGK 250 are designed and
quali ed for applications at the level of the reactor
protection system.
APPLICATIONS
• Operational process monitoring
○ Safety related signal processing for neutron ux
monitoring in the power range of pressurized water
reactors and research reactors
RELATED PRODUCTS
• KNK/KNU 50: neutron ionization chambers
• Digital signal processing channels: e.g. for start-up
range or wide range monitoring
FEATURES
● Two signal paths for two ionization chambers
● Calibration to neutron ux signal (nv, P/Pn)
● Calculation of mean value and deviation
● Generation of analog and binary signals for the reactor
protection system
● Short response time < 10 ms
● Remote test signal generators
● RS232/485 data interface
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
DGK 250
Neutron Flux Instrumentation
www.mirion.com
144967EN-C
DETECTORS AND INPUT SIGNALS
● Boron coated ionization chambers (compensated or
non-compensated) e.g. KNU 50 or KNK 50
● No external preampli ers
● Cable to the DGK 250: coaxial cable, no limitation of
length
● Detector supply 0 ... 1 kV located in the central
electronic unit
● Selectable ranges of input signals 0 ... 10/20/50 μA
DIGITAL SIGNAL PROCESSING
● 80C31/32 multi-processor system
● Program memory: EPROM
● Parameter memory: CMOS-RAM with integrated
Li-battery
● Data interface: RS232 and/or RS485
● Internal LC-display: 2 x 16 characters
OUTPUT SIGNALS
● Neutron ux at top and bottom position, individually
calibrated
● Average neutron ux, calibrated to reactor power,
e.g. 0 ... 125 %Pn
● Neutron ux deviation between top and bottom
● Analog outputs: 0/4 ... 20mA/600 Ω, insulated
● Binary outputs: insulated relais change overs,
60V/0.5A or 125V/1A
OTHER CHARACTERISTICS
● DC power supply: 18 ... 33 VDC, approx. 1.6A at 24 V
● Optional: AC power supply: 230 VAC or 115 VAC
+10%/-15%, approx. 40 VA
● Operating temperature: 0 ... 70°C (32 ... 158°F)
for the main electronics
● Mechanical vibrations: < 5 g, 5 ... 100 Hz
● 19” modular system according to IEC 60297
● Rack size (W×H×D): 483 mm × 133 mm × 280 mm
(19 in x 5.2 in x 11 in)
● Plug-in boards: 100 mm × 160 mm (3.9 in x 6.3 in)
Loading...