Ultra-High Frequency Partial Discharge Monitor for OEMs.


  • Rugged, Compact Design with multiple mounting options – Din-Rail, Direct
  • 4 or 8 Synchronous Input Channels for monitoring Partial Discharge
  • Monitors Partial Discharge into the Insulation of MV/HV assets
  • Best in class EMI, ESD Immunity
  • Modbus (Serial-RS485) and Canbus integration with third party systems
  • Advance noise gating with built-in filters and software algorithms
  • Built-In Fail Safe Relay for System Failure

Rugged Monitoring PD211 is a compact design, designed for reliable Partial Discharge (PD) Monitoring Module for Transformers, Switchgears, GIS and Power Cable Terminations. 

PD211 is based on the UHF (Ultra High Frequency) technology for PD signal acquisition and analysis. The Monitor is a combination of reliability and user-friendly configuration software. It has two variants with 04 channel and 08 channels, that can connect to 4 and 8 UHF-PD sensors respectively. The system can be integrated with any UHF PD sensors that are having response between 100 MHz to 2000 MHz. 

  • Online continuous partial discharge monitoring  
  • Online PD measurement during HV AC testing 
  • Multiple point PD monitoring 
  • PD monitoring in Transformer using UHF PD Sensors  
  • PD Monitoring in GIS using UHF PD Sensors 
  • PD Monitoring in MV Switchgear using UHF PD Sensors 
  • PD Monitoring in Power Cables Terminations using UHF PD Sensors
  • Suitable for OEM-type applications (TMS, Gateways)
  • Multiple mounting options – Din-Rail and Direct (Bare-board)
  • Cost optimized solution for Partial Discharge monitoring
  • Software designed for integration into monitoring systems /gateways
  • Robust datalogging and Analytics
  • Customizable according to customer specific applications
  • Most accurate PD analysis with advanced noise gating
  • Highly robust and safe monitoring systems
Number of Channels
04 or 08 (Simultaneous acquisition, No Multiplexing)
Sampling Rate
125 Ms/s
Acquisition Bandwidth
300Mhz - 2000Mhz
Vertical Resolution
PD Sensitivity
Noise Elimination
- Bad Pass Filters
Tuneable for di erent frequencies including but not limited to 440Mhz, 800Mhz, 1100Mhz, and 1600Mhz
- Software Noise Gating
Advanced denoising algorithms
Data Storage (Memory)
MicroSD external memory slot (Up to 2 TB)
Compatible PD Sensors
Any Ultra High Frequency (UHF) PD Sensors with sensitivity 100Mhz - 2000MHz.
Synchronization Inputs
2 Inputs (Internal and External)
Serial Port
RS-485 with Modbus RTU and Can Port with CANBUS protocol
Configuration Port
Ethernet Port for configuration
Operating Temperature
-30 to 75 °C
Storage Temperature
-40 to 85 °C
4.92" x 4.92" x 1.89" (125mm x 125mm x 48mm)
95% Non Condensing
Power Input
12 - 24V DC ( Default)
Power Consumption
# of Relays Outputs
01 x Fail Safe Relay for System Failure