Specifications - GQ Electronics GMC-SE User Manual

Overview
The GQ GMC-SE digital Geiger Muller Counter is specially designed to be a U.S. NRC
compliant, portable and convenient device. It can be used in industrial, commercial
maintenance, research, evaluation, simulation and other analytical or scientific applications
in areas such as industrial plants, public utilities, hospitals, 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 for both
indoor and outdoor environments. It features automatic data recording, continually
monitoring the radiation level and logging the data into internal memory every second. Users
can later check and analyze this data by connecting the GMC-SE to a computer and
downloading it using the provided software. The GQ GMC-SE also comes with 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 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-SE internal rechargeable battery can be charged with a standard wall adapter.
Using the adapters, continuous data monitoring is possible. The GMC-SE can run on only
the wall adapter, giving users freedom from the limitations of a battery and guaranteeing
consistent and accurate measurements.
The main board also has a real time clock on board for time related data logging purposes.
The USB port communicates with the GQ Geiger Counter Data Viewer software.
The GQ Geiger Counter Data Viewer software can download the time stamped radiation
(history) data from the unit and save it on a computer for future references and analysis.

Specifications:

Range of dose rate indications, µSv/h
Range of exposure dose rate indications,mRem/h
Range of registered beta radiation energy MeV
Range of gamma radiation energy, MeV
Range of registered X-ray radiation energy MeV
Reproducibility of indication
Gamma Sensitivity Co
Alarm levels by CPM
Alarm levels by uSv/h
Alarm levels by mRm/h
Date indication
Time indication
Elapsed time indication
Timed Count
Scheduled Timed Count
Radiation detection:
Detectable Radiation Range:
Instrument Background:
Working Voltage:
Display:
On board Memory:
Power: Consumption
Power: Supply
This device is calibrated to GQ Electronics' strict QA standard and eligible to be calibrated to
U.S. Nuclear Regulatory Commission (NRC) regulation 10-CFR-34,10-CFR-35, ANSI/NCSL
Z540.3-2006(R2013), ISO/IEC 17025:2017(E),MIL-I-45208A, and traceable to the National
Institute of Standards and Technology.
60
(cps/mR/hr)
0.00 to 2000
0.00 to 200
0.25 to 3.5
0.1 to 1.25
0.03 to 3.0
20%
22
0 to 999999 (continuously)
0.00 to 9999 (continuously)
0.00 to 999 (continuously)
YYYY-MM-DD (continuously)
HH-MM-SS (continuously)
99 years(maximum)
1 Second to 256 days(programmable)
0 Second to 256 days(programmable)
 
,
x
0.1 ~ 3 MeV
0-2 pulses/s
3.6-3.7V
LCD dot matrix, back lighted
2M Bytes flash memory for data storage
25mW – 125mW (count rate dependent)
3.7V Li-Ion battery / USB power
6