PD Acoustic Sensor  PD Localization  ASENS-2  Rugged Monitoring
                     M O N I T O R I N G  S I M P L I F I E D
ASENS
Highly Accurate Acoustic Sensor for
Partial Discharge Localization
Designed for Diverse Utility and Industry Applications
ASENS Modular design for partial discharge monitoring in electrical assets
Partial Discharge activity is an indicator of increasing defects in 
insulation. PD is a discharge or spark that partially bridges the gap 
between conducting electrodes. The discharge may be in oil filled 
equipment or in a gas filled environment.
RM’s ASENS with acquisition system is specifically designed to detect 
partial discharge using portable measurement/ continuous monitoring 
methods and is also capable to locate PD position by studying the PD 
amplitude and phase delay of the acoustic waves propagating through 
the discharge activity. The location of the PD can be estimated by 
measuring the time of arrival of the acoustic wave, and PD localization is 
ascertained by using sensors at multiple locations of assets. This makes acoustic emission sensing 
a preferable measuring tool in real time PD signal detection. 
RM's advanced acoustic measurement has an additional advantage of possessing better- signal to 
noise ratio for real-time applications. To avoid the damage to high voltage equipment, detecting 
and locating PD is crucial both in industries and utilities. Acoustic waves are measured by ASENS, 
and the AE System will identify the real PD and their location based on ML/Time Dierence of 
Arrival (TDOA) algorithm with the highest percentage of location accuracy to fault location.  
The highly sensitive ASENS can be used for measurement of PD on Transformer Tanks, GIS, 
Reactors, Large Pressure Vessels, and for Leak Detection. Depending on the application and 
environment the sensors are available with three dierent resonant frequencies of 50 KHz, 80 KHz 
and 150 KHz.
Benefits
PD localization with multiple sensors Significant time saving through fast 
High noise immunity for online partial localization of the fault
discharge detection Quick and easy application
Integrated amplifier for better SNR Good return on investment
Features
Built in pre-amplifier Easy to use, light weight
Narrow band resonant sensor with Plug and play connections
highest signal to noise ratio Highly sensitive 
Simple and rugged sensor
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ASENS
Applications
Gas Insulated Switchgears 
Oil Filled Reactors Oil Filled Transformers and Gas Insulated Lines
Technical Specifications
Gas Insulated Oil Filled Oil Filled
Specifications
Switchgear (GIS) Transformer/ Reactors Transformers
Resonant Frequency 50 KHz 80 KHz 150 KHz
Frequency Range 15 KHz - 70 KHz 20 KHz - 180 KHz 60 KHz - 400 KHz
Sensitivity Peak >115 dB >70 dB >115 dB
Built in Preamplifier 40 dB 28 V - 40 dB 28 V
Size mm Φ30 x 57 Φ19 x 19.5 Φ30 x 36.5
Applicable Temperature °C -20 to 50°C -20 to 80°C -20 to 50°C
Housing Material SUS-504 SUS-304 SUS-304
Receiving Surface Material Ceramic Ceramic Ceramic
Protection Grade IP62 IP62 IP62
Connector Type BNC M5 BNC
Connector Position Side Face Side Face Side Face
Product Features Built in Pre-Amplifier Low Frequency Built in Pre-Amplifier
Ordering Code
Amplifier Width (mm) Sensor Material
PA: Pre-Amplifier 1  : Aluminimum (Standar)
NA: No Amplifier Length (mm) 2 : Stainless Steel
Acoustic Sensor A s e n s - z z y - x x x - w w w - v v - u t Sensor Connector
0 = TNC (Standar)
1  = BNC
Model of Sensor Cable Length 2 = N Type
(Z = 0 to 9) 05 = 5 Meters
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DS0003R05_ASENS_EN_A4
Asset Monitoring : 
Enterprise Architecture
Compatible with Rugged Monitoring Enterprise Solution
UI UX
- Data Layer
- Analytics
- User Interface
- Custom Dashboards
- Reporting
- Email/SMS Notifications
RM EYE
Private Cloud (Customer Cloud),
Rugged Monitoring Cloud
IEC 60870-104 ODBC
IEC 61850 MODBUS
FTP/SFTP DNP 3.0
- XML, JSON
- CSV, COMTRADE Data Collection HTTPS
MQTT
Asset Data
Transformer
Switchgear Power Cable - Oine Test Results - Historian Power Electronics
Monitoring 
Monitoring Monitoring - Inspection Records - CMMS (Battery, UPS, 
System 
System System - Name Plate - SCADA/ DCS VFD, Relay)
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One Solution for Multi-Site 
Multi Asset Monitoring
Manage dierent industrial assets on one platform 
without human intervention
Features
Advanced and Exceptional Reporting Built on well-established remote and 
Technology with automated alerts cloud-based monitoring technology
Modern remote monitoring solutions provide Simple user-friendly interface providing 
valuable insights to Multiple Assets at Multiple fast access to all the features and commands
Sites on real-time
Quick and easy 1 step configuration setup
Robust asset health monitoring 
with analysis and recommendations support Encompasses a secure access to data 
asset eectiveness in addition to maximizing and configuration
equipment uptime Advanced asset algorithms based on 
Establish a real time and consistent standard ones with new ideas 
monitoring by getting the right information Systematic fleet management and analysis
into right hands 
Extended multilingual support to handle 
An ecient, reliable partial discharge product inquires or troubleshoot problems 
monitoring for all the assets proactively
A detailed comprehensive DGA Analysis Up System Level Reporting
Lifetime Consumption details. Industrial IoT
Features Specific to PD Monitoring
Partial Discharge Monitoring and Analysis Realtime PD Alarm System
PRPD : Phase Resolve Partial Discharge Get Alarm Notifications for Individual 
Partial Discharge Amplitude and Discharge Bushing Parameters Over Email, SMS and 
Rate Trend Analysis Push Notificaions
Partial Discharge Fault Localization Analytics on Online, and Oine Partial 
Discharge Test Data
Artificial Intelligence Based PD Fault 
Identification
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Why Customers Choose Us?
RM solution, the trusted monitoring solution for over 10000+ assets across 50+ countries. 
We are a leading High Value Electrical Asset Monitoring Company integrating fibre optic 
technology to the assets.
Attention to Details A plan for Success
It’s our attention to the small stu, Our Customers are well satisfied with 
scheduling of timelines and keen project the advisory services that we oer to 
management that makes us stand out from help them with best in class 
the rest. technological performance and a long 
durable life. 
Experts only Meeting Deadlines Money Matters
We bring-in our diversified Work with us, and you’ll work We protect you 
experienced team with over with seasoned professionals – against currency 
100+ years of experience in vigilant of deadlines, and fluctuation with 
Asset Monitoring committed to exceeding client competitive and fair 
expectations. market prices
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Rugged Monitoring Services About Rugged Monitoring
Rugged Monitoring provides customization of Industry’s leading team of asset condition 
sensors, monitors & software. In addition we monitoring experts with 100+ years of 
oer on-site commissioning services, combined experience committed to delivering 
maintenance contracts and technical support to customizable solutions for challenging 
all customers worldwide. applications. We oer a range of reliable, high 
performance, customizable sensors and 
monitoring solutions that are immune to 
external influence.
Certification
ISO 9001 ISO 14001 ISO 45001/ Llyod’s ATEX
OHSAS 18000 Register Certification
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Head Oce
Canada
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230, Quebec, QC - G1N 
4N7, CANADA
+1-418-767-0111
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M O N I T O R I N G  S I M P L I F I E D