Owner's manual

Featuring:
radiation monitoring
systems
A Mirion Technologies Division
DWK 250
Neutron Flux Instrumentation
DWK 250
Digital Wide Range Channel
The DWK 250 digital wide range channel forms part
of the proTK™ product line. It has been designed for
neutron  ux monitoring combining pulse and inter-
mediate range in combination with only one detector,
e.g. in-core or ex-core wide range  ssion chamber.
Hardware and software of the DWK 250 are designed
and quali ed for applications at the level of the reac-
tor protection system.
APPLICATIONS
• Operational process monitoring
○ Safety related signal processing for neutron  ux
monitoring combining pulse range and intermediate
range
RELATED PRODUCTS
• Neutron detectors: e.g. wide range  ssion
chambers
• Digital signal processing channels: e.g. for pulse
range or power range monitoring
FEATURES
● 10 to 12 decades of measurement range with one
detector only
● Calibration into neutron  ux units (nv, P/Pn)
● Filtering of the signal with an adaptive time constant
● Calculation of the relative  ux change rate (reciprocal of
the reactor period) for the whole wide range
● Generation of analog and binary signals for the reactor
protection system
● Remote test signal generators, even in the preampli er
● The correct function of all signal pathes can be tested
before start-up