The TMS-5141 is a four channel partial discharge trending system with a true color LCD display showing all the necessary information for the commissioning and surveillance of high voltage equipment. The noise gating channel and variable LP Filter allows to separate noise from the pd signals. The TMS-5141 shows actual partial discharge level for every individial channel (phase) on a bargraph, Realtime Partial Discharge Activities in Oscilloscope View as well as a colorised phase resolved partial discharge pattern. The touch functionality of the LCD display allows to parametrise, store and visualise the partial discharge signals without the use of any computer. Optionally a computer can be connected through the build in Ethernet Interface to store permanently measured results. Eight optional 4-20mA input channels allows to record machine operation conditions as MW, MVA, temperatures etc. together with the partial discharge signals. The optional Modbus RTU interface allows an easy integration into the exisiting SCADA/DCS system. Individual 4-20mA and relay outputs per channel are available. This make the TMS-5141 the ideal cost effective partial discharge monitoring system for permanent installation with permanent data recording.


Key Features

  • High Resolution PRPD Pattern
  • Noise Elimination trough Gating Channel and variable Frequency Range
  • Ethernet Interface for permanent Data Storage
  • Local True Color Touch LCD

Technical Data

  • PD Input Channels (4 channel simultan + Gating): 4+1
  • Optional (pd channel extension to 16 channels)
  • Selectable LP Filter: 40KHz to 5MHz
  • Selectable HP Filter: 800kHz to 300MHz
  • Signal Gain (HW): 40dB
  • Acquisition Time Intervall: 1 to 600 sec/ch

Sensor Compatibility:

  • Coupling Capacitors: 80pF - 10nF
  • RF CT‘s


  • Relais Contacts NO/NC System OK+CH 1-4
  • Analogue Output: 4x 4-20mA (1 per Ch)
  • Analogue Input (OP Parameters): 8x4-20mA
  • Modbus RTU: RS-485
  • Ethernet: 100Mbit/s


  • Dimension: 4.3“
  • Resolution: 480x272pxl
  • Color Depth: 24bit
  • Touch: Resistive
  • Phase Resolved Partial Discharge Pattern (Resolution: 256x256—16bit colour )
  • Bargraph: 4 (1 per Channel)
  • Trend: max. 1 Year (on Local Display)
  • Event Logging


Sparks Instruments SA

Headoffice :

route de montena 85

CH-1728 Rossens

Office Number:
+41 (0)26 301 30 06

+41 (0)26 301 30 08

Sales & Marketing

+41 (0) 78 889 03 53

+41 (0)26 301 30 06

Production and Quality Control

route de Montena 85
CH-1728 Rossens

Technical Support

+41 (0)26 301 30 05

+41 (0)26 301 30 04