This unique fully portable battery operated instrument is used:
• To detect and count high energy Alpha particles, Beta particles and Gamma rays
• To count either continuously or over preset periods of 10 sec, 60 sec or 100 sec.
• To measure Rate of counts per second or Rate of counts per minute.
Is complete with an internal Geiger Muller (GM) tube which makes it ideal for industry, the
classroom or for outdoors. The thin mica window of the tube is protected against mechanical damage by a
Maximum geiger counting rate is 10kHz. and an audible ‘click’ for each particle count may be enabled or
disabled by press button.
The IEC Geiger Counter & Rate meter will run on 3 standard ‘AA’ (penlight) batteries for a period of about 100
hours. Alkaline cells will give an even longer operating life. When batteries are approaching the flat condition,
‘bAtt’ displays momentarily without disturbing counting operations. If the batteries flatten, a socket is provided
in the end of the instrument for any normal 240/12V.AC or DC Plug Pack. Polarity is not important.
The high voltage for the GM tube is fully adjustable from 300 to 500V.DC. by pressing the VOLTS and ARROW
buttons simultaneously when in ‘Standby’ (display flashing). The voltage is displayed for checking. Different
Plateau Voltages may be set from time to time for various experiments and the set voltage is automatically
restored on each power-up.
Power: 240/12V.AC. PlugPak (not supplied) permits unlimited operation time.
Internal battery: (3x ‘AA’ cells supplied) permits approx. 100 hours counting time.
Length: 195mm Width: 100mm Height: 37mm Weight: 0.42kg