5
Overview
The.GQ GMC-500 digital Geiger Muller Counter is designed to be a portable and convenient device.
It can be used as industrial, commercial maintenance, research, evaluation, simulation and other
analytical or scientific applications in areas such as industrial plants, public utilities, universities,
laboratories, and electronic repair shops. The device comes with built in audible and visual signals
for the level of radiation detected. It can be used for radiation detection and monitoring both indoor
and outdoor, as well as in other similar environments. It features automatic data recording. It can
continually monitor the radiation and log the data each second into internal memory. When
connected to a PC, software can download the radiation history data to the computer and the user is
able to analyze those data later. The GQ GMC-500 installed a high contrast black/white LCD
module, one front LED indicator and one analog data port. The analog data port can be connected
to any third party device application as data input.
The GMC-500 installed a WiFi module, user is able to log the data via WiFi wirelessly.
The device is equipped with an USB port, utilized for communication and external power
supply/charging of the internal rechargeable Li-Ion 3.6V/3.7V battery.
The GQ GMC-500 internal rechargeable battery can be charged with the a standard USB port, USB
charger or with a computer USB port. Using the external power, continuous data monitoring is
possible. Using either power adapter you will not have to worry about the batteries charge condition
or any data loss.
The main board also has a real time clock on board for time related data logging purposes.
The GMC-500 installed multiple sensors to ensure full scale/range measurement and higher
accuracy. .
Specifications:
Range of dose rate indications, µSv/h
0.00 to ~4250
(0.00 to ~42500 on GMC-500+)
Range of exposure dose rate indications, mRem/h
0.00 to ~425
(0.00 to ~4250 on GMC-500+)
Range of registered beta radiation energy MeV
0.25 to 3.5
Range of gamma radiation energy, MeV
0.1 to 1.25
Range of registered X-ray radiation energy MeV
0.03 to 3.0
Reproducibility of indication
10%
Alarm levels by CPM
0 to 655350 (continuously)
0 to 982980 (GMC-500+)
Alarm levels by uSv/h
0.00 to 4250 (42500 on GMC-500+)
Alarm levels by mRm/h
0.00 to 425 (4250 on GMC-500+)
Date indication
YYYY-MM-DD (continuously)
Time indication
HH-MM-SS (continuously)
Elapsed time indication
99 years(maximum)
Timed Count
1 Second to 256 days(programmable)
Scheduled Timed Count
0 Second to 256 days(programmable)
Radiation detection
,
x
Detectable Radiation Range
0.1 ~ 3 MeV
Instrument Background
< 0,2 pulses/s
Working Voltage
3.6-3.7V
Display
LCD dot matrix, back lighted
On board Memory
1M Bytes flash memory for data storage
Power
:
Consumption
25mW
– 125mW (count rate dependant)
Power
:
Supply
3.7V Li-Ion battery / USB power
Dimensions
135 x 78 x 25 mm(5.25”x 3” x 1”)
