The CANBERRA Model 3125 is a compact dual NIM high voltage
power supply accommodating all types of detectors requiring
up to 5 kV bias and up to 300 ìA of current. Its low noise and excellent stability make it well suited for high resolution detector systems.
The 3125 will withstand overload or direct output short-circuit for an indefinite period and provide normal output after the fault is removed. Each supply is continuously adjustable over the full range from 0 to ±5000 V. With the application of an external input
dc level or logic signal, the output voltage can be controlled over its full range or gated off, respectively. Front panel meters monitor the output voltage of each supply.
An internal jumper plug can be set limiting the maximum output voltage to ±2000 V dc. For photomultiplier applications, this feature
guards against inadvertent application of higher voltages which can result in permanent tube damage.
A polarity selector plug provides selection of positive or negative
output polarity. To prevent inadvertent polarity reversal, the polarity selector plug is located inside the module. In addition, the polarity status is indicated by illumination of a front panel LED which can be previewed prior to activation of the power supply. |
