Mirion Technologies RMS 250 User Manual

Featuring:

radiation monitoring
systems

A Mirion Technologies Division

RMS 250

Radiation Monitoring

RMS 250

Radiation Monitoring System

The monitors of the system RMS 250 are designed

for  xed installed, safety related measuring channels

classi ed by the German nuclear regulations

KTA 1501 ff and KTA 3501 or similar international

regulations.

APPLICATIONS

• Dose rate monitoring according to KTA 1501

and KTA 1506

• Monitoring of radioactive aerosols, iodine and

noble gases according to KTA 1502 and KTA

1503.1

• Stack monitoring for post accident conditions

according to KTA 1503.2

• Liquid monitoring according to KTA 1504

• Dose rate and activity monitoring for research

reactors according to KTA 1507

• N-16 monitoring for detection of steam generator

leakages according to KTA 3501

FEATURES

Calibrated monitors for radiation protection and
process monitoring assembled with qualifi ed
components:

● Detectors, measuring vessels, lead shieldings

● Cables, signal procesing, test equipment

RMS 250

Radiation Monitoring

Dose Rate Monitoring, Area Monitoring according to KTA 1501 and KTA 1506

Meas. Range

(Sv/h)

Detector Detector Temperature Check

Source

Detector Cable Signal Processing Signal Paths

Continuous 1h max.

1e-3 ... 1e+5
1e-5 ... 1e+5

KG 50 SEC
KG 80 PEF

0 ... 135°C

-25 ... 100°C

205°C / 3h
120°C ch. vol.

2 x cer. coax
4 x coaxial

NV102 + DPK251·K2xxx
NV102P + DPK251·K2xxx

1 ... 4
1 ... 4

1e-7 ... 1
1e-6 ... 1

KG 122 SBL
KG 122 PEF

0 ... 80°C
0 ... 100°C 120°C

TKA 17
ch. vol.

2 x coaxial
4 x coaxial

NV102 + DPK 251·K2xxx
NV102P + DPK251·K2xxx

1 ... 4
1 ... 4

1e-7 ... 100
1e-7 ... 100

KG 151 REZ
KG 220 SEU

-25 ... 150°C

-30 ... 120°C

180°C
165°C

TKA 15
TKA 16

2 x coaxial
2 x coaxial

NV102 + DPK 251·K2xxx
NV102 + DPK251·K2xxx

1 ... 4
1 ... 4

1e-7 ... 0.3 KG 220 EEM 0 ... 80°C TKA 16 2 x twist.pair DPK 251 K12xx/14xx 1 ... 4

1e-7 ... 1e-2 ZG 50 A1 -25 ... 70°C TKA 52 2 x twist.pair DPK 251 K12xx/14xx 1 ... 4

Monitoring of Radioactive Noble Gas according to KTA 1502 and KTA 1503.1

Meas. Range for

Xe-133 (Bq/m3)

Detector Measuring

Vessel

Lead Shelding Check

Source

Detector

Cable

Signal Processing Signal Paths

2e+3 ... 1e+9
1e+4 ... 1e+10

SB 150
SB 40

RSD 275
RSD 200

RSA 481/482
RSA 310/311

TKA 61
TKA 61

TKK 05
TKK 05

DPK 251·K52xx/54xx
DPK 251·K52xx/54xx

1 ... 4
1 ... 4

Liquid Monitoring according to KTA 1504

Meas. Range for

Cs-137 (Bq/m3)

Detector Meas. Vessel

or Principle

Lead

Shelding

Check

Source

Detector

Cable

Signal Processing Signal

Paths

3e+3 ... 3e+8
5e+3 ... 1e+9
typ. 1e+4 ... 1e+10

SG 65 M
SG 65 M
SG 65 M

RSD 135
RSD 221
Off line

­RSA 428
Proj. spec.

TKA 54
TKA 54
TKA 54

TKK 05
TKK 05
TKA 05

DPK 251·K52xx/54xx
DEK 251 / DPK 251
DPK 251·K52xx/54xx

1 ... 4
1 ... 4
1 ... 4

Monitoring of Radioactive Aerosols and Iodine according to KTA 1502 and KTA 1503.1

Detected

Activity

Measuring Range

(Bq/m3)

Monitor and Detector Check

Source

Detector Cable Signal Processing Signal

Paths

Beta aerosols
Gamma aerosols
Iodine

2 ... 1e+5 for Cs-137
1 ... 1e+4 for Cs-137
1 ... 1e+4 for I-131

AD 24
AG 24
JD 24

SB 40
SG 65 M
SG 65 M

TKA 47
TKA 47
TKA 10

TKK 05
TKK 05
TKA 05

DPK 251·K10x
DPK 251·K30x
DPK 251·K40x

1
1
1

Monitoring of Steam Generator Leakages according to KTA 3501

Detected

Activity

Measuring Range

(Bq/m3)

Monitor and Detector Check

Source

Detector Cable Signal Processing Signal

Paths

N-16 Main steam line 1 ... 1e+5 SG 66 TKA 54 TKK 05 DAK 250-i 1

Stack Monitoring for Post Accident Conditions according to KTA 1503.2

Detected

Activity

Measuring Range

(Bq/m3)

Monitor Detector Check

Source

Detector Cable Signal Processing Signal

Paths

Aerosols
Iodine-131

100 ... 2e+8 (1e+11)
20 ... 2e+7 (8e+11)

FA/J 51 SG SG 65 M TKA 63 TKK 05 DEK 251.K20x 3

Xenon-133 1e+8 ... 1.5e+14

8e+5 ... 3.7e+15

RSD 211
(NGM 203)

KB 100
CHMC 01

TKA 61
TKA 70

TKK 12 NV102 + DPK251

NV103 + DPK251

1 ... 4
1 ... 4

RMS 250

Radiation Monitoring

DETECTORS

A variety of type tested detectors is available to

transform the physical quantity “nuclear radiation”

(e.g. particle  ux or dose rate) into a electrical signal:

• Gamma ionization chambers for dose rate monito-

ring

• Beta ionization chambers for noble gas monitoring

• Gamma and beta scintillation detectors for activity

monitoring

• Large-area silicon detectors for alpha and beta

monitoring

• GM-detectors for simple applications

• BF3 proportional counter tubes for sensitive

neutron monitoring

DIGITAL SIGNAL PROCESSING CHANNELS

Digital electronic channel systems TK 250 are

designed for signal processing of dose rate and

activity monitors. They are characterized by ef cient

functions, a comfortable operators menu structure

and a reliable and rugged operational behaviour.

Hardware and software are organized in modules.

This results in a high  exibility to adapt to different

applications and customer needs.

Interfacing of pulse detectors and ionization

chambers is achieved by different preampli ers or

input boards. Remote operated test generators on

the input boards and signal simulation at different

points of the digital

processing sequence

allow ef cient proce-

dures for periodical

testing.

Hardware and software

of the system are type

tested according to

KTA 1505 and KTA

3505, therefore it may

be used for functions

of category A and B of

IEC 61226.

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 [phone]
F [phone]

Mirion Technologies (MGPI) Inc

5000 Highlands Parkway
Suite 150
Smyrna, GA 30082
USA
T [phone]
F [phone]

Mirion Technologies (MGPI H&B) GmbH

Landsberger Strasse 328a
DE-80687 Munich
Germany

T [phone]
F [phone]

Mirion Commercial (Beijing) Co., Ltd.

Shanghai Jiangchang Commercial Branch

Room 801, 78 Jiangchang SanLu
Zhabei District, Shanghai 200436
PR of China
T [phone]
F [phone]

RMS 250

Radiation Monitoring

www.mirion.com

144982EN-B

SIGNAL PROCESSING CHANNELS for different

applications:

DPK 251 Digital Pulse Channel for dose rate and

activity monitoring with 2 or 4 signal paths

DFK 251 Digital Filter Channel for particulate and

iodine monitors

DEK 251 Digital E uent Monitoring Channel e.g.

for post accident monitors

DAK 250 Digital Start-up Channel for applications in

category A

INPUT SIGNALS

● Detector pulses: > 30 ns up to 5e6 cps

● 5V standard pulses: >1 µs up to 4e5 cps

● DC currents: from 0.1 pA to 1 mA

● Analog signals: 0/4 ... 20 mA

● Binary signals:
○ 24V-logic, contacts, NAMUR-Sensors

● Detector supply:
○ 0 ... 1 kV, 2 mA or 0 ... 2 kV, 1 mA or 0 ... 4 kV, 0.5 mA

POWER SUPPLY

● 18 ... 33 VDC, approx. 1.6A at 24 VDC or

● 230 VAC or 115 VAC +10%/-15%; 48...62 Hz,

approx. 40 VA

OUTPUT SIGNALS

● Linear or logarithmic analog outputs:
○ Measuring range to be adjusted with parameters
○ 0 ... 10 V internal, optional analog indicator
○ 0 or 4 ... 20 mA, 0 ... 600 Ω load,  oating

● Up to 20 different alarms, adjusted by parameters:
○ Low or high alarm to be selected for all variables
○ Threshold and hysteresis adjustable

● Binary outputs, e.g. for alarms, status signals

relay change overs, 60V/0.5A or 125V/1A

ENVIRONMENTAL CONDITIONS

● Ambient temperature (modules): 0 ... 70°C

(32 ... 158°F)

● Storage temperature: -30 ... 85°C (-22 ... 185°F)

● Humidity: < 95%

● Seismic conditions: ≤5 g, 5 ... 100 Hz

● Mechanical stress: ≤30 g, 11 ms

MECHANICAL CONSTRUCTION

● 19” modular system according to IEC 60297

● Printed board size: 100 mm × 160 mm (3.9 in x 6.3 in)

● Front panels: 20 mm × 128 mm (0.8 in x 5 in)

or multiples

● Rack size (W×H×D): 483 mm × 133 mm × 280 mm

(19 in x 5.2 in x 11 in)

½-19” wall mount housing

19”-6U wall mount housing