23
Applications
Stationary Application
The unit has two holes on its back for hanging the unit on the wall for stationary monitoring
of radiation and long term surveillance applications. With a USB wall power adapter, it is
able to monitor the data continuously, 24/7.
Mobile Application
To use the unit n the car while driving, use a car adapter to charge/power the unit.
Position the unit where it can easily detect radiation, i.e. on the dashboard or similar
locations in the car. You may need to fix the unit to an appropriate location for safety
reasons.
Other technical details you may want to know
Data Port
This model has a 3.5mm analog data output port. It uses standard 3.5mm audio stereo plug.
This port is not for the earphone. The audio signal is for third party device and software. The
signal can be connected to other devices or computer microphone port directly.
USB Port
The USB port is the standard mini-USB port. It is used for data communication, external
power and the battery charger connection.
Data collection time
The GMC-300E PLUS radiation data is collected continuously, and every second the
measured data is being transmitted to the CPU for processing.
Tube recovery time
After detecting high doses of radiation, each Geiger tube needs some time to recover (back
to normal). This may take a couple of minutes. This recovery time is depending on the level
of radiation just experienced and is also tube dependant.. Turning the unit OFF and then
turning ON again after a couple of minutes will reduce the tubes recovery time.
Extend battery operating time
The internal battery has limited capacity. Turn on the Power Saving mode to extend the
battery operating time. Turn off the speaker if it is not necessary. If a fully charged battery
run-out in less than 5 operating hours, then the battery needs to be replaced.
The GMC-300E Plus will operate normally when a non-rechargeable battery is installed. Set
the battery type to None-Rechargeable.
