Atomic and nuclear physics • 127 Universal counter


Our universal counter 2002.50 connects directly to a GM sensor with jack connector – i.e. 5135.70 (standard tube) or 5135.65 (large area tube). Counting time can be set to 1 s, 10 s, 60 s or 100 s – or you can manually start and stop the counting. For all the fixed times, a continuous mode can be selected for repeated counting. With a 25 mm high LED display, this counter is ideal for de- monstration experiments in the classroom. The counter is provided with an RS232 serial interface for con- nection to a PC and is compatible with the Datalyse data log- ging program. A more detailed description of the counter is given on page 7.


2002.50 Counter 2002.50 Power adapter (for 5136.00 and others)


12 V power supply, compatible with a lot of Frederiksen equipment: 5136.00, 5138.00, 4060.50 (new), 1770.00, IM-159810, 2211.00, 2002.50


3550.50 Mains adapter 12V 1,5A DC plug 2,1mm – European plug only


3550.50


Power adapter (for older equipment)


12V power supply for older equipment like 5135.30, 5135.35, 5135.55, 4060.50 (old).


3550.10 Mains adapter 12V 300 mA 3.5 mm jack – European plug only


3550.10


Accessories for Geiger counters


Datalyse


Software for use with Geiger-Müller counters 5136.00, or 2002.50 (communicates with other Frederiksen instruments as well) when logging data on PC. Well suited for measure- ments of radioactive decay or absorption of radiation.


Freeware – Go to http://datalyse.dk


USB communication adapter For connecting a 5136.00 Geiger counter to a PC, this USB A to 3.5mm jack adapter cable is used.


5125.65 USB communication adapter


Cable, modular plug to jack The modular plug of this cable fits the pulse output of the 5136.00 Geiger counter. The 6.3 mm jack connector fits e.g. a 2002.50 counter or datalogging equipment.


5125.60 Cable, modular plug – jack 6.3mm 5125.75


Adaptor, GM tube with BNC to 6 mm Jack


This adapter is used for connecting Geiger tubes with BNC connector (for instance 5125.15, 5125.25) to the 6.3 mm jack input of our 2002.50 counter. The adaptor is also compatible with various data logging equipment. The adapter generates the high voltage needed for the GM tube and provides signal buffering.


5125.75 Adaptor, GM tube with BNC to 6 mm Jack


Passion for Science


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