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M525 Programmable Capacitance Decade

Programmable capacitance box with continuous range from 100 pF to 100 uF.

Accuracy: 0.25 %


  • Designed for RCL meters calibration
  • Range of capacitance from 100 pF to 100 uF
  • Basic accuracy 0.25 %
  • Maximal operating voltage 50 V
  • User defined curves (conversion table)
  • Remote control RS232, optionally USB, LAN, GPIB

Datasheet pdf  pdf     Users manual pdf 
Application software DecadeAssistant pdf


Capacitance decade is designed specifically for calibration of capacitance ranges of multimeters and RCL meters. Due to its versatility it can be used in cal labs, repair centers and in production lines, where remote control of capacitance is requested. Main parts of the M525 decade contains relays with high current capability and capacitors with polypropylen dielectricum. Important feature is calibration procedure, which allows to recalibrate decade easily. Process of recalibration consists of measuring of partial capacitors inside the instrument and writing new calibration values into internal calibration memory. Calibration can be performed via the front panel. Capacitance box contains both calibration data for floating and grounding connection. Instrument can be controlled via RS232, USB, LAN or GPIB interface. The decade box can be ordered as 19” module for easy assembling into a 19” rack. Module height is 3HE.

Accessory (included in delivery)

  • Cable RS 232
  • Application SW ( CD )