Transformer Probes Robustness | TSENS | Rugged Monitoring
                     M O N I T O R I N G  S I M P L I F I E D
TSENS
Rugged Fiber Optic 
Temperature Sensor
ROBUST  |  ACCURATE   | DIELECTRIC
TSENS Fiber Optic Temperature Sensors
A specifically designed innovative patented probe with 
robustness and ease of installation can attract much 
attention from transformer manufacturers. While the 
transformer operators get reliable and long term 
temperature data essential for precise transformer 
aging evaluation. 
Our Rugged Monitoring Tsens probes have been designed and built to give precise results when 
installed in transformers by measuring temperature directly. The sensing technology is based on the 
proven zero-drift GaAs technology. They are completely built using first quality materials, with very 
high dielectric strength, so your transformers can benefit from accurate temperature readings, which 
is essential to a good knowledge of transformer aging rate. During factory heat run tests these probes 
will give both transformer manufacturer and operator invaluable information regarding the 
transformer expected MVA performance. The patented tip construction makes them extremely 
robust, while being very easy to install in radial spacers or in other pressboard material (such as for 
temperature measurements in cores or other transformer components). This tip along with a 200 μ Ø 
fiber oers the highest probe pulling force in the industry. The spiral-wrap cable is especially 
constructed to allow complete oil penetration assuring that no air can be present. All materials used 
in the probe construction are compatible with high temperature kerosene desorption processes.
Benefits 
Calibration free Sensors
Features
High Stability and No shift over time
Optimized for easy installation in oil-filled PTFE Teflon spiral-wrap reinforcement
and dry-type transformers and reactors
Robust fibre optic temperature sensor tip 
Rugged and robust construction built to 
outlast your transformer life Available with disc and without disc
Outstanding repeatability, zero-drift GaAs Surpass ASTM D2413 and D149 standards 
technology Very low PD performance
9 mm disc design, suitable for all locations Designed to exceed transformer life
in a transformer (windings, cores, busbars, 
tap changers, etc.)
Solvent and chemical resistant
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TSENS
Applications 
Oil Filled or Dry Type Transformers Standard radial spacers
Ideal for direct measurements of temperature Withstands kerosene desorption
Suitable for high voltage environments Compatible with all types of transformer oil 
(1 MV, or more) including ester type 
Suitable for HVDC windings Can be Integrated with all Rugged 
Monitoring instruments 
Ordering Code
Transformer Probe Type
X = 3 for 3 mm Diameter
Length In Meters, Two digits, ex: 02 = 2 Meters
Tip Options
Z = 0, for no Retaining Disc
TFS = Transformer Fiber Sensor Z = 1, for 9 mm Disc (default)
Z = 2, for 9 mm Disc (width cut at 7 mm)
T F S - T G - - X - Z - Y Y - T L TL = Tip length in mm (optional);
only valid with Z = 0 
(if not specified dafault = 09 {9mm})
T = Temperature G = Gallium Arsenide Options
YY = 00, Regular ST Connector (Default)
YY = DT, Dielectric Connector TORLON
Technical Specifications
Temperature range -80°C to +250°C
Repeatability 0.2°C
Accuracy absolute temperature +/- 0.8°C
Accuracy relative temperature +/- 0.2°C
Probe sheathing material Teflon spiral-wrap
Tip material Torlon (with disc) or Polyimide (no disc)
Stainless alloy ST with zirconia ferrule
Connector
(Optional: Dielectric Torlon ST with zirconia ferrule)
Probe length Up to 25 meters
Response time Up to 0.2 sec without disc. About 2 sec with disc
Longevity Probe accuracy and repeatability constant over time
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DS0016_TSENS_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
RM Eye - Unified platform to monitor entire network 
of electrical assets
Features
Advanced asset health monitoring with Built on well-established remote and 
analysis and recommendations to cloud-based monitoring technology
increase asset eectiveness in addition to 
maximizing equipment uptime Quick configuration so that you are not 
required to configure separately.
Modern remote monitoring solutions 
provide valuable insights to Multiple Protocols: IEC 61850, MODBUS, MQTT
Assets at Multiple Sites from time to time Robust integration with 3rd party systems 
Establish a real time and consistent and devices with industry standard protocols
monitoring by getting the right Bulk configuration imports for fast 
information into right hands deployment
Simple and user-friendly interface Encompasses a secure access to data and 
providing easy and fast access to all the configuration
features
QR code scanner on mobile devices
Everything about the asset at one place 
The raw data, analysis and Accessible on web browser and mobile app
recommendations
Historical data storage and on demand 
Advanced asset algorithms for electrical access via export feature
assets to evaluate asset health 
Extended multilingual support to handle 
Advanced reporting technology with product inquires or troubleshoot problems 
automated alerts proactively
An ecient, reliable partial discharge Systematic fleet management analysis
monitoring for all the assets
Oine test data integration and analysis
A detailed comprehensive DGA analysis
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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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Our Presence Across the Globe
Head Oce
Canada
1415 Frank-Carrel, Suite 
230, Quebec, QC - G1N 
4N7, CANADA
+1-418-767-0111
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ruggedmon ©2021 Rugged Monitoring Company. All rights 
reserved. Information subject to change 
[email protected] without notice. All trademarks are properties of 
www.ruggedmonitoring.com their respective companies, as noted herein.
M O N I T O R I N G  S I M P L I F I E D