Programmable Precision Resistor Decade (JPL-201A)

Programmable precision resistor decade, named also "Rbox" (code JPL-201A) has 4-wire shielded connection and provides precise resistance settings from 0 Ω to 100 MΩ with resolution of 0.1 Ω. The "Rbox" can simulate three various RTD (PT100 / PT500 / PT1000) from -200°C to 850°C. The temperature can be entered either in °C or in Fahrenheit. The "Rbox" has 4½" touch scren color display that can easily input the desired resistance or temperature. The "Rbox" can be remotely controlled via RS232C serial line or USB 2.0 or Ethernet or GPIB interface from a PC with LabView for MS Windows 7.

The "Rbox" is 185 x 155 x 250 mm and powered from AC line 100 - 240V.


The electronics consist of two circuit boards. The top board is serial to 64-bit output board. The bottom board is resistance decade board composed of high-precision, low-temperature ` coefficient resistors. The displej is 4D intelligent display powered by Diablo processor.
Power supply is simple PS giving +5V @ 2A. Optionaly is mounted GPIB Embedded Module

Documentation