Main functions of MR-3000 multifunctional radiation dose detector

The MR-3000 series multifunctional radiation detector is composed of multiple probes externally connected to a multifunctional host, such as alpha and beta surface pollution intelligent probes, high range long rod X, gamma probes, high-sensitivity X, gamma dose rate probes, neutron dose equivalent probes, etc. Different probes share a host to form a radiation monitoring set, which meets the detection needs of various places. It is particularly suitable for daily radiation protection work in different occasions such as nuclear power plants, other nuclear facilities, environmental protection, industrial flaw detection, irradiation processing, etc.

The equipment is equipped with dose rate measurement, count rate measurement, rapid scanning measurement, timed measurement, background subtraction measurement, etc. according to different radiation measurement scenarios. Users can flexibly switch measurement modes according to the on-site situation to ensure work efficiency.

Features:

Large size color LCD screen, rich display content, intuitive and easy to distinguish safety warnings;

The whole machine is made of metal material, which is beautiful and thick, with a higher level of protection and easy to clean;

Large mechanical buttons have a longer operating life and excellent tactile sensation, which can meet the requirements of glove operation occasions;

Supports manual or automatic data storage mode, with a data storage capacity of up to 20000 pieces;

Support hot plugging of probes, automatic recognition of probe types by the host, and switching of display interfaces;

High power buzzer components can ensure effective warning in complex environments;

Adopting high-capacity, rechargeable lithium-ion batteries, reliable, durable, and easy to replace;

Dedicated LEMO charging and communication interface, easy to use and maintain;

Sealed instrument box is optional, dustproof, waterproof, shockproof, and easy to carry.

Host technical specifications:

Detector: GM tube

Measurement type: X, γ

Display screen: 3.2-inch color LCD, resolution 320 × 240, with backlight

Sensitivity: ≥ 2cps (137Cs, 1 μ Sv/h)

Dose equivalent rate range: 0.1 μ Sv/h~100mSv/h

Accumulated dose range: 0.01 μ Sv~10Sv

Energy range: 48keV~3MeV

Relative inherent error: ≤± 15% (137Cs)

Energy response: ≤± 20%

Display units: nSv/h, nGy/h, μ Sv/h, μ Gy/h, CPS, Bq or Bq/cm2, etc

Response time: ≤ 5s

Alarm method: sound and light alarm

Alarm threshold: continuously adjustable within the measurement range

Alarm category: threshold, overload, fault, battery undervoltage

Data storage: The storage interval is continuously adjustable from 1 second to 1 hour, and can display historical data and store 20000 sets of data

Size: 170 × 80 × 30mm

Weight: 400g

Series external probes:

External multi-functional probes, supporting hot plugging and intelligent recognition. The external probe has a built-in storage chip that can store various parameter information such as probe type, measurement mode, data storage mode, scale factor, alarm threshold, etc. The host automatically reads the parameters, converts the measurement interface, and does not require users to make any pre test settings or preparations. By combining different probes, the instrument can meet various radiation protection and measurement needs.

Environmental grade X and gamma probes

Detector: Φ 75 × 82mm composite scintillator (ZnS (Ag)+plastic scintillator)

Measurement type: X, γ, pulse radiation

Measurement modes: Normal, Pulse, Search, Peak, Expert

Sensitivity: ≥ 2000cps (137Cs, 1 μ Gy/h)

Energy range: 20keV~7MeV

Energy response: ≤± 30%

Measurement range: 10nGy/h~100mGy/h

Minimum pulse measurement time: 40ns

Response time: 10ms

Angular response: ≤± 15% (0~180 °)

Relative basic error: ≤± 15% (137Cs)

Repeatability: ≤ 1%

Fluctuation error: ≤ 1%

Overload characteristics: The dose equivalent rate is higher than 10 times the measurement upper limit, and the instrument is not damaged

Dimensions: Φ 88 × 320mm × 195mm

Weight: 2.35kg

Long rod gamma probe

Detector: Imported double proportional GM tube

Measurement type: continuous or pulsed X, gamma, beta rays

Energy range: 48keV~3MeV

Measurement range: 0.1 μ Sv/h~10Sv/h

Relative inherent error: ≤± 15%

Coefficient of variation: ≤± 5%

Response time:<10s

Overload characteristic: Measuring within 5 times the upper limit, it can indicate overload, and after the overload is eliminated, it can automatically return to normal

Extension distance of telescopic rod:>4m

Size: Φ 39 × 165mm

Weight: 150g

Protection level X, gamma probe

Detector: Φ 40 × 25mm NaI (TI)+PMT

Measurement type: X, γ

Energy range: 16keV~3.0MeV

Dose equivalent rate range: 0.01 μ Sv/h~10mSv/h;

Accumulated dose range: 0.01 μ Sv~9.99Sv

Relative inherent error: ≤± 15% (137Cs)

Energy response: ≤± 30%

Sensitivity: 450cps/μ Sv/h

Overload characteristics: The dose equivalent rate is higher than 10 times the measurement upper limit, and the instrument is not damaged

Size: Φ 80 × 280mm

Weight: 1.65kg Size weight needs to be re verified (June 6, 2025)

α and β surface contamination probes

Detector: Composite scintillator (ZnS (Ag)+plastic scintillator)

Measurement type: α, β

Detection window area: 170cm2

Display unit: CPS, Bq, or Bq/cm2

Measurement mode: Count rate, activity, and unit area activity measurement

Background: α ≤ 0.1CPS, β ≤ 10CPS

Background deduction: Deduction and non deduction of background are optional, and the measurement time of background can be set

Measurement range: 0~99999 CPS (alpha channel)

0~50000 CPS (β channel)

Detection efficiency: α: ≥ 45% (241Am or 239Pu)

β: ≥ 55% (90Sr-90Y or 204T1)

Cross channel rate: α - β -<10%, β - α -<1%

Relative inherent error: ≤± 10%

Repeatability:<5%

Nuclide library: The instrument comes with a built-in nuclide library and has a learning function. Users can customize the nuclide library according to their needs

Size: 330 × 125mm

Weight: 620g

Neutron probe

Detector: 3He proportional counter tube+polyethylene moderator (spherical)

Sensor pressure: 8 times atmospheric pressure

Radiation type: neutron n

Sensitivity: 2.83cps/(μ Sv/h), 252Cf source

Real time dose rate range: 0.01 μ Sv/h~99.99 mSv/h

Accumulated dose range: 0.01 μ Sv~9999mSv

Energy range: 0.025eV~15MeV

Relative inherent error: ≤± 15%

Repeatability: ≤ 10%

Detection efficiency: about 90% for thermal neutrons

Angular response: The excellent spherical geometric structure and relative position of the counting tube result in a deviation of less than ± 10% in the 4 π angular response of the instrument

Corrosion resistance: can resist weak acids, weak bases, and salt solutions; Insoluble in most solvents below 60 ℃

Moderator material: Low density polyethylene

慢化体密度： 0.95g/cm3

Size: Φ 230 × 360mm

Weight: 9kg

Characteristics of the whole machine

Communication method: RS-485

Power supply: The host is equipped with a built-in rechargeable lithium battery

Power consumption: The overall power consumption of the machine is ≤ 200mW (excluding display backlight power consumption)

Working hours: ≥ 24 hours

Protection level: IP65

Working temperature: -40 ℃~+50 ℃

Storage temperature: -41 ℃~+50 ℃

Relative humidity: ≤ 90% (35 ℃, non condensing)

Electromagnetic compatibility: meets the requirements of RE102, RS103, CS112, and RS101 in GJB 151B-2013

Rain exposure: meets the requirements of GJB 150.8A-2009 rain exposure test

Vibration: Complies with the vibration test requirements of GJB 150.16A-2009

Impact: Complies with the impact test requirements of GJB 150.18A-2009