Mirion Technologies DSK_DMK 250 - Manual (Page 2)

Since norms, specifi cations and designs are subject to occasional change, please ask for confi 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
DSK/DMK 250
Neutron Flux Instrumentation
www.mirion.com
144969EN-C
DETECTORS AND INPUT SIGNALS
●
Miniature in-core fi ssion chambers, e.g. WL 23630
(IST), MNK/MBK 61 (Siemens-Areva)
●
Cable to the DSK 250: coaxial cable, no limitation of
length
●
Detector supply: -50 ... -200 V individually
adjustable for each detector
●
Range of detector current: 32 ... 4000 μA adjustable to
full scale
●
Input signal for coolant fl ow: 0/4 ... 20mA
DIGITAL SIGNAL PROCESSING
●
80C31 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
●
DSK 250 processes four detector signals in four
individual signal paths:
○
Calibration of detector signal to power density
○
Alarm threshold for local density in relation to coolant
fl ow
●
DMK 250 accumulates up to 64 detector lines (16
DSK 250):
○
Calculation and calibration of average reactor power
○
Calculation of fl ow related fl ux and margin to scram
○
Flux oscillation monitoring combining transient sup-
pression and fast response
OUTPUT SIGNALS
●
DSK 250: fl ux density for each detector position
●
DMK 250:
○
Average fl ux
○
Flow related fl ux
○
Magnitude of fl ux oscillations calibrated to reactor
power, e.g. 0 ... 125 %Pn
●
Analog outputs: 0/4 ... 20mA/600 Ω, insulated
●
Binary outputs: insulated relay change overs,
60V/0.5A or 125V/1A
OTHER CHARACTERISTICS
●
DC power supply: 18 ... 33 VDC, approx. 1.6A at 24 V
(each DSK and DMK)
●
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)
DSK 250
front view