Description
MINIGEIGER 7317 with Pancakes – Geiger counter, Radioactivity dosimeter and datalogger, All in one tool.
The result of over five years of development and continuous improvements, Minigeiger 7317 combines ease of use, compact dimensions and features typical of higher category instruments.
The Minigeiger 7317 project was born in 2020 and in the following years it was constantly perfected through numerous hardware and software updates. The current 2025 version integrates further optimized radioactivity acquisition algorithms, greater precision in dosimetry, the recording of measurements in real time on the internal memory and a configurable acoustic alarm function that activates when the thresholds set by the user are exceeded.
Minigeiger 7317 was designed to meet the needs of the most demanding enthusiast, but it also represents an ideal solution for professionals looking for a compact instrument, intuitive and reliable for measuring Alpha radiation, Beta e Gamma.
Minigeiger 7317 is a reliable and compact Geiger Counter equipped with a high performance Pancake Probe.
Despite its small size, ours “Minigeiger 7317 con Pancake” It is a reliable Geiger counter with advanced performance, derived from our Italian technology and the very sensitive American-made Geiger Muller Pancake LND7317 probe.
Geiger counter with integrated Radioactivity Datalogger function.
Our Minigeiger 7317 with its integrated Datalogger function, It also allows radioactivity data to be stored internally, within the limits of the 200 locations available in its internal memory. The same data can then be saved on the PC via the USB interface it is equipped with and the Windows software supplied: “EASY RAY“.
Autorange of radioactivity measurement times and measurement “SCALER” high-precision
Thanks to the automatic acquisition time adjustment function, MINIGEIGER is able to automatically adapt the duration of the measurements according to the current levels of radioactivity, optimizing the accuracy of the results.
The instrument also has a measurement mode “Scaler”, which allows you to set acquisition times up to 600 seconds. This function, combined with the high sensitivity of the Pancake probe, allows you to accurately discriminate even very weak radioactive activities and minimal variations in the natural background.
This mode is particularly useful in low count measurements, where the reduction of statistical error plays a fundamental role.
Sound alarm that warns if customizable radioactivity thresholds are exceeded
Newer versions of the Minigeiger 7317 come with a configurable alarm function, capable of generating an automatic acoustic signal when the radioactivity thresholds set by the user are exceeded.
This function is particularly useful during monitoring and research activities for radioactive sources, allowing you to quickly identify any increases in environmental radioactivity levels.
Easy and intuitive use thanks to the single Settings button.
MINIGEIGER 7317 was designed with particular attention to ease of use. Unlike many tools that have numerous complex commands and menus, we have favored an essential and intuitive interface, designed to facilitate use even by less experienced users.
For this reason, all commands that are not strictly necessary have been eliminated, maintaining only the power switch on the right side and a single button dedicated to selecting the menu screens, located next to the color TFT display.
This design philosophy allows you to use the tool immediately, minimizing the possibility of incorrect settings and making the detector particularly practical even during use in the field.
Operational simplicity has been achieved without giving up the most advanced measurement functions, which are automatically managed by the internal firmware.
Minigeiger 7317 with Pancake is also supplied on request Accredia calibration certificate.
On request, Minigeiger 7317 can be accompanied by an ACCREDIA Calibration Certificate issued by an accredited national laboratory, which certifies the metrological traceability and conformity of the measurements with the checks carried out.
Tests carried out on previous models, from which the current version derives, confirmed the reliability and performance of the instrument, allowing its use also in the professional field.
Main features:
Minigeiger Geiger Counter 7317 with Pancake Probe, product, sold, guaranteed and assisted in Italy by the same national manufacturer ElettronicaNetwork.
It is powered by 4 common microstylus alkaline 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 may need our Geiger Counter ?
Our compact radioactivity meter for its professional features, is recommended by the qualified radiation protection expert, 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.
Minigeiger 7317 Technical Specifications:
Model:
– Professional Geiger Counter Minigeiger 7317 with Pancakes. Adopts a 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 nuclear radiation, Beta, Gamma and also X-rays.
Technical data of the Geiger Muller Pancake LND7317 probe:
- typical sensitivity
(Co60): 3600CPM @ (mR / h),
(CS137): 3450CPM / (mR / h) - Maximum counts per minute in saturation state: ~ 315000 CPM
- Maximum counts in linear zone: =~ 65000 CPM
- Operating temperature: 20° + 60° C
- DC-DC converter for high voltage power supply to the probe:
Stabilized 500V output with real-time feedback circuit. - Active Window: circular in shape made of thin mica with a diameter of 45 mm.
- Dose rate sensitivity (uSV):
approximately 400 pulses/min for a rate of 1 µSv/h referred to the CS-137. - Types of rays detected:
2.5 MeV Alpha radiation.
150 keV Beta radiation.
Gamma radiation: 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)
- Linear measuring range (Radiation mix) in uSv/h /calculated with reference to the physical characteristics of the LND7317 probe) : and 0.01 µSv/h a ~190.00 µSv/h
- Maximum dose returned by the probe when it was in a state of saturation: ~1000uSv/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 robust, environmentally friendly PET-G by 3D printing
Product colours: (For current availability, ask us for confirmation)
– Bianco – Giallo – Red – Nero
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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