Mirion Technologies GMP-12SD User Manual

GMP-12SD External Probe

Portable Survey Meters

GMP12SD

External Gamma Probe

The GMP-12SD represents the new design of Mirion exter-

nal probes. The casing with 35 mm diameter enables the

probe recalibration with most common calibration units.

This external probe enhances the detection capability of

RADOS RDS-31 meter family. It has been designed to ful ll

the most demanding applications in nuclear industry, HLS

& civil defence and industrial use. The GMP-12SD probe

is intended for gamma and X-ray radiation. The measured

quantity is the H*(10) ambient dose equivalent, both ac-

cumulated dose and rate are monitored.

N E W

FEATURES

• compatible with all RADOS RDS-31 survey meters

• remote dose rate measurements

• optional telescopic rod

• GMP-12SD extends the measurement range of RDS-31

• cord lengths up to 50 meters upon request

• casing of anodized aluminium

• enclosure class IP67

GMP-12SD is used as an external detector with the RDS-

31/iTx/iTxSD multi-purpose Radiation Survey Meters espe-

cially for high dose rate measuring applications.

The GMP-12SD probe is equipped with installed IKELITE 7

connector and with separate cable.

For the connection to the mating bulk connector interface

at the bottom of RDS-31 family survey meters an external

probe cable is provided. The probe can be connected “on-

the- y” without the need for switching o the meter. The

RDS-31 recognizes the probe connection and the user can

select the appropriate type from the suggestion list to set

the meter reading to desired measuring unit. The calibra-

tion coe cient for the GMP-12SD is delivered with the

probe. The user can download the coe cient to the RDS-

31 meter with the CSW-31 con guration software.

Whenever an external detector is connected to the RDS-31,

the meter performs continuous dose rate measurements

with internal detector, even if an external probe is con-

nected to the meter, to ensure the safety of the user.

health physics

A Mirion Technologies Division

Featuring:

TECHNICAL SPECIFICATIONS:

Radiological Characteristics • radiation detected: gamma and x-rays,

according to ambient dose equivalent H*(10)

• energy range:
60 keV - 6 MeV for dose rate range 10 µSv/h - 10 Sv/h

• detector type:
silicone PIN diode

• dose measurement range:
1 µSv - 500 Sv

• dose linearity:
+ 15%)...500 Sv (+ 30%)

• dose rate measurement range:
10 µSv/h - 10 Sv/h

• calibration accuracy:
5% of the reading in 3 mSv/h Cs-137 exposure at +20°C

• energy response:

-20% … +30% over energy range 60 keV - 6 MeV

Mechanical Characterstics • enclosure class:

IP67 (short term)

• connector:
installed IKELITE 7 connector on detector body (cable not included)

• connection cable: available up to 50 m, sold separately

• dimensions:
Length 185 mm, cylinder diameter 35 mm

• weight: 400 g

Environmental Characteristics • temperature range:

Operation -40°C to +55°C.
Storage -40°C to +70°C.

GMP-12SD External Probe

Portable Survey Meters

NOTE: SINCE NORMS, SPECIFICATIONS AND DESIGNS ARE SUBJECT TO CHANGE,
PLEASE ASK FOR CONFIRMATION OF THE INFORMATION GIVEN IN THIS PUBLICATION

www.mirion.com

www.hp-mirion.com

20996378_GMP-12SD_EN_B

Mirion Technologies (MGPI) Inc
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Mirion Technologies (MGPI) SA
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