A remotely located pre-amplifier minimizes EMI and other sources of interference and adjustable discriminator and gain controls allow flexibility in channel calibration with existing detectors. A differentiator circuit provides continuous indication of rate of change of power, and self test functions can sequentially check count rate, current, period and high voltage.
Provision is made for permissive operation by computer of all test functions.
The NMP-1000 is an analog, wide range, linear current mode module with range switching. Ranges maybe selected either manually or automatically, locally or remotely. LED indication of each decade range. For remote operation, a separate panel assembly can be provided with identical range indicating LEDs, display of current and voltage, as well as channel self test functions. Compensation voltage as well as adjustable high voltage power supplies are provided in the module to allow operation with most existing current mode detectors.