Mirion-technologies ULMS User Manual download pdf

Featuring:

radiation monitoring

systems

A Mirion Technologies Division

ULMS

Nuclear Island Measurement Systems

ULMS

Ultrasonic Water Level Measuring System

The ultrasonic level measurement channel forms part

of the NIMSYS product line. It is used during the

nuclear power plant outage to monitor the real level

of water in the reactor via the primary pipe.

The main application is to avoid the vortex cavitation

of the pump, and to optimize duration time for main-

tenance of the steam generator for example.

Its design makes it easy to install and limit the instal-

lation time in the reactor building.

Its design is based on the round-trip time of an ultra-

sonic wave which is re ected from the surface of the

liquid. It can be easily and quickly installed without

any modi cation of the plant. The high performance

of the ultrasonic measurement channel is ensured

by the measurement stability and immunity to distur-

bances of the liquid surface.

APPLICATIONS

• Operational process monitoring

VERSIONS

• 500 kHz for casted pipe

• 1 MHz for forged or extruded pipe

FEATURES

● Simple and compact installation

● Immunity to liquid disturbances

● Easy operation and maintenance

● All-digital processing

● Automatic calibration

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Featuring: 1
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Summary of Contents

Page 1 - Featuring:

Featuring:radiation monitoring systemsA Mirion Technologies DivisionULMSNuclear Island Measurement SystemsULMSUltrasonic Water Level Measuring SystemT

Page 2 - 145030EN-A

Since norms, speci cations and designs are subject to occasional change, please ask for con rmation of the information given in this publication.Mir

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Mirion-technologies ULMS User Manual

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