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Specifications
Power for the GPI is provided from the high voltage supply used to operate the GM tube. Current requirement is about 500 µA. so a high voltage supply with a capacity of at least 1 mA. is recommended. Geiger tubes normally operate in the range of +300 to +1000 volts depending on the specific tube, so the operating plateau should first be run to determine the correct operating voltage.

Connectors on the standard model GPI are as follows:

OUTPUT = BNC, HIGH VOLTAGE = SHV, GM TUBE = MHV.

NOTE: For our GM25 and GM35 detectors, you will either need a BNC cable connector to the GM Tube and an MHV cable connector to the GPI, or, ask us to change the GM Tube input connector to a BNC.

For other connectors, specify at time of order.

ORDER: GPI GM Pulse Inverter

 

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