Description
With the little MINIGEIGER it's like having 3 tools in one: Geiger counter, Radioactivity Dosimeter and Datalogger on internal memory.
Finally after this summer 2020 of hard work, we are happy to present the edition “MINI VIOLINAR” by Guardian Ray our new small geiger made in Italy with Pancake probe. This radioactivity detector also represents the compact evolution of the previous series ” Plus” with Pancake probe.
MINI VIOLET 7317, basically smaller Italian Geiger with Pancake, complete, ultra sensitive and precise.
Despite its particularly compact dimensions, our detector “MINIGEIGER con Pancake” , shows off respectable performance, thanks to well-designed made in Italy electronics and a very sensitive American-made Geiger Muller Pancake probe.
MINIGEIGER has the Datalogger function to save measurement results on its internal memory.
Our Geiger Counter also allows you to store radioactivity data locally, which will be allocated within the limits of the 200 locations available in its internal memory to then be able to transmit them to a PC via the USB interface with which it is equipped and the software for Windows: “EASY RAY”.
Piccolo, sensitive, precise and with the auto-range of measurement times and with the special measurement function “SCALER”
Thanks to the autorange of the measurement acquisition time, MINIGEIGER is able to automatically adapt the acquisition times based on the current radioactivity values to make them the most suitable for obtaining particularly precise measurements. Furthermore, it is equipped with the so-called measurement methodology: “SCALER”, which sets the acquisition time at a fixed interval of 600 seconds, allows us to discriminate with extreme precision even negligible levels of radioactive activity.
Use is simple and intuitive thanks to its single programming button which selects simple screens in sequence.
Our tool was designed with maximum ease of use in mind, therefore we have put away all those buttons which most of the time complicate the use of these devices, especially for an inexperienced user. On our MINIGEIGER, however, we have removed everything superfluous, that is, only the power switch on the right side and a single button for scrolling through the MENU screens remain, located at the top right next to the color TFT display of the same instrument.
MINIGEIGER Accredia calibration certificate can also be requested.
The good characteristics of this radioactivity meter can be certified at a certified national calibration center “ACCREDIA” of our trust, which, after checking the instrument, issues a calibration certificate valid for the purposes permitted by law. The results of these checks, which we have already had performed in previous series, from which this new model derives, they attest without any uncertainty to the excellence of the performances. Therefore we have no problem defining this new model in the series as one of the best Geiger counters ever produced.
Main features:
Geiger Counter Product, sold, guaranteed and assisted in Italy by the same national manufacturer.
Guardian Ray MINIGEIGER is powered by 4 common alkaline micro-stylus batteries (AAA) and uses the well-known ATMEL microcontroller: ATMEGA328P, which provides the management of all the measurement functions implemented in our device. Among these we mention: the function Radioactivity dosimeter, which automatically calculates the overall radiation dose to which you are exposed in a given period of time, the function: Scaler, that is, a special measurement mode that significantly increases the sensitivity and precision of acquisition by using the fixed and very long sampling times of the measurements.
Always about the hardware, owns a 1.8 backlit color display″ with active matrix, perfectly readable even outside in the presence of sunlight. Then it is’ also present a led it's a buzzer which are activated instantly whenever a particle is detected by the Geiger tube. There is also a USB interface which allows you to connect the instrument to a computer with a 64 bit Windows operating system to download measurement data both in real time and deferred and at the same time allows you to power the instrument without having to run down the batteries..
Who might need our Geiger Counter ?
Due to its professional characteristics, our new radioactivity meter is recommended for qualified radiation protection experts, to public administrations such as municipalities, the local health authorities for the protection of citizens' health and of course the police to conduct health investigations directly in the area.
We think it could also be useful in research and analysis laboratories, and in particular to companies that import and process products from countries that have been involved in serious nuclear accidents in the past. But anyone who needs to have a multifunctional radioactivity detector could purchase it, modern, precise and reliable, capable of ascertaining with sufficient precision the levels of ionizing radiation present in the environment, in the ground, in building materials, on some foodstuffs and in general on any product or personal object.
Specifiche del Geiger Guardian Ray MINIGEIGER 7317:
Model:
– Guardian Ray MINIGEIGER 7317 Smart Professional Geiger Counter with special G.M. tube. Pancake made in USA housed internally in the lower part of the instrument.
1.8 inch color LCD touch display:
– Type LCD Active matrix color graphic with strong contrast and brightness, readable even outdoors on sunny days.
Unit of measure (all displayed at the same time):
– Dose rate in: µSievert /ora, MilliRoentgen/ora, Counts per Second (CPS), Counts per minute (CPM), and Calculation of Accumulated Dose in µSieverts
Type of probe used for detecting radioactivity:
– Tubo geiger made in USA Pancake ultra sensibile, model: LND-7317, with rear cladding made of thick metal and large front window made of very thin mica. E’ filled with a mixture of noble gases + halogens. It is mounted internally to the same instrument with a sensitive part “vista”. therefore it can easily detect alpha+beta+gamma nuclear radiation and X-rays.
Technical data of the probe
– typical sensitivity (Co60): 3600CPM / (mR / h)
– typical sensitivity (CS137): 3450CPM / (mR / h)
– Operating temperature – 20° + 60° C
– Geiger tube supply voltage: 500V
– Circular mica window with 45mm diameter
Dose rate sensitivity (uSV):
– approximately 400 pulses/min for 1 µSv/h ref.CS-137
Types of rays detected
– 2.5 MeV alpha radiation, – Beta da 150 keV e Gamma: da 10 keV
Efficiency With 4 pi. angle (in contact)
– Alpha radiation
– Am-241 5.5 MeV circa 18%
– Beta radiation
– C-14 49 keV avg. 156 keV max. 5.0%
– Bi-210 390 keV avg. 1.2 MeV max. 30-32%
– Sr-90 546 keV and 2.3 MeV 35-38%
– P-32 693 keV avg. 1.7 MeV max. 35
Unit of measure:
– µSv/h, MilliRoentgen/h , CPS (Counts per second), CPM (counts per minute)
– Measurement scale calibrated from 0.01 µSv/h to over 2000.00 µSv/h
Equivalent dose measurement:
– For its measurement, the exclusive detection of Beta and Gamma rays is assumed, therefore the ratio 1 is assumed:1, tra Gray / Sievert, that is to say: 1 gray = 1 sievert
– Dose measurement scale: and 0.01 µSv a circa 530.00 µSv
Radioactivity measurement method:
– standard with automatic setting of the sampling time within a range of 2-5-10-20-30 seconds, which self-regulates based on the intensity of the latest radiation detected.
– Single measurement or averaged between all acquired values.
– SCALER: High precision measurement mode, which provides a fixed sampling time of 600 seconds that cannot be modified by the user, very useful for discriminating very low levels of radioactivity.
Calibration:
– Guardian Ray is subjected to various measurement tests under our supervision with calibrated radionuclides of the CO60 type – CS137 – SR90. Furthermore, on request it can be supplied with a calibration certificate issued by an authorized SIT center such as Enea of Frascati or the Polytechnic of Milan.
Memorization of Measurements:
– The integrated datalogger allows measurements to be saved on the internal memory of a maximum of 200 measurements which can subsequently be downloaded to a PC via the USB interface and the use of our software “EASY RAY” for Windows X64 systems. The data storage interval in the internal memory of the instrument is automatically synchronized with the same acquisition times of the radioactivity measurements.
CPU processor):
– MCU: ATMEGA328P
The CPU firmware can be updated via the USB port by the user himself, when a new version is made available via programming software that will be released on demand
Certifications
Directives
2004/108/CE (Electromagnetic compatibility)
2006/95/CE ( Low voltage)
Standards:
EN55011:2011-02 (Conducted and Radiated Emissions)
EN61326-1:2006-05 (Electromagnetic compatibility requirements)
EN 61010-1:2001-11 (Safety requirements)
Diet, Autonomy and Consumption:
– Powered by 4 common alkaline micro-type batteries “AAA” and 1,5V
– Continuous operating autonomy with fully charged batteries approximately 30/40 hours
– consumption around 60-100mA (under conditions of normal use)
External dimensions:
– Length 127,25 mm, Length: 73,25 mm, Depth 36,8 mm:
Weight:
– Approximately 300 grams
Casing:
– Made of eco-friendly PLA by 3D printing
Product colours: (For current availability, ask us for confirmation)
– Bianco – Giallo
Certifications:
– supplied with EMC / RF certificate of conformity to CE regulations on electromagnetic interference
Recycling:
– The manufacturer can possibly collect the discarded product for disposal free of charge
Download X64 Windows PC Software: “EasyRay per MiniGeiger“
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