Trending System


The TMS-5041 is a four channel partial discharge trending system with a true color LCD displayshowing all the necessary information for the surveillance of a high voltage equipments. The noise gating channel and variable LP Filter allows to separate noise from the pdsignals. The TMS-5041 shows actual partial discharge level for every individial channel (phase) on a bargraph, as well as a partial discharge pattern. The touch functionality of the LCD display allows to parametrise and visualise the partial discharge signals without the use of any computer. Optionally a computer can be connected to store actual configuration and partial discharge 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 RTUinterface allows an easy integration into the exisiting SCADA system. Alternatively individual 4-20mA and relais outputs per channel are available. This make the TMS-5041 the ideal cost effective partial discharge monitoring system for permanent installation.



4 Channel Online Partial Discharge Monitoring System (Wallmount Enclosure)


(DIN Rail Version)

Key Features

  • High Resolution PRPD Pattern
  • Noise Elimination trough Gating Channel and variable Frequency Range
  • Designed for complete Commissioning without additional Hardware
  • Local True Color Touch LCD 

Technical Data

  •  PD Input Channels (Multiplexed + Gating): 4+1
  • 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
  • USB 2.0: PC communication


  • 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) 




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