T/Guard LinkTM (RevB) A small form factor and cost

T/Guard LinkTM (RevB) A small form factor and cost
T/Guard LinkTM (RevB)
Fiber Optic Power Transformer Winding Temperature Monitoring System
A small form factor and cost oriented fiber optic
hot spot monitoring system for dry type and
oil filled power transformers
Offers an easy way to link Neoptix probes to Qualitrol 509 and 507 transformer controllers
This updated module offers a similar SCADA interface to existing Neoptix T/Guard-Link systems
Interfaces to all Neoptix probes
Small and sturdy cast aluminum enclosure
RS-485 serial interface (Modbus and ASCII communication)
4-20 mA analog outputs
Accuracy of +/- 1 ˚C
Available with up to 8 channels. With Modbus, up to 32 modules can be cascaded together
Ideal for OEM applications
Product Summary
Description: A small form factor and
cost oriented fiber optic hot spot
monitoring transducer for dry type and
oil-filled power transformers. Its
standard MODBUS communication
protocol allows for a quick and easy
integration to any SCADA system.
Optimized for use with the Qualitrol 507
and 509 systems.
Application: Fiber optic hot spot
monitoring system for any type
of transformers.
Fibers by
Defining Reliability
T/Guard-Link-RevB, for GaAs Neoptix probes
Compatible with ALL Neoptix probes
Number of channels
2, 4, 6 or 8. With Modbus, up to 32 modules can be linked together, to a theoretical total of 256 channels
ASCII commands and Modbus over RS-485
Communication Operating Mode
and I/O
Optically isolated RS-485 and analog outputs. Can be user configured in half or full duplex
ASCII (Neoptix commands) or serial Modbus RTU (full or half duplex). Mode can be changed via a front
panel key, with an indicator
Remote (SCADA outputs)
4-20 mA outputs, one output per optical channel.
Detachable header connector blocks, 3.5 mm pitch
System status reading
and indicators
A LED confirms communication mode (ASCII or Modbus) on panel
System has internal built-in temperature sensor; value is available through serial port
Mechanical and Operating temperature
Storage temperature
-40 to +72 °C, 5-90 % humidity, non-condensing
-50 to +80 °C, 5-95 % humidity, non-condensing
Board level
environmental protection
MIL-I-46058C (IPC-CC-830) Type SR silicone conformal coating
Light source MTBF
Light source lifespan and optimal system performance superior to 300 years of continuous use
60/120 Hz @ 0.1 mm displacement
10g half-sine in three orthogonal planes
Form factor
Solid aluminum enclosure, mounting brackets at each corner. Must be protected from rain, dust, etc.
Complete mechanical compatibility with legacy T/Guard-Link system
Front membrane
UV stabilized polyester
Optical: ST connectors; Serial, analog out and power in: 3.5 mm pitch connectors, socket for plugs
with screw terminal
Dimensions / weight
Width: 190 mm; Height: 113 mm; Thickness: 38 mm; Weight: 0.7 kg
Emissions and Surge
IEC 61000-4-2 ESD; IEC 61000-4-3 Radiated RFI; IEC 61000-4-4 Burst; IEC 61000-4-5 Surge;
IEC 61000-4- 6 Induced (Conducted) RFI; ICES-003 Issue 5, Aug 2012; IEC 60255-5 Dielectric strength;
IEEE C37.90 Dielectric strength; IEEE C37.90.1-2002 Fast transient; IEEE C37.90.1-2002 Oscillatory;
IEC 60068-2-14 Temperature -40 to +72 oC
Power requirement
24 VDC nominal (20-28 VDC acceptable)
6 watts
Probe compatibility
Double calibration: Neoptix and older Nortech Fibronic probes
Measurement range
-80 to +250 oC
Resolution reading
0.1 °C
Five-year Limited international warranty - Extended warranty available
RS-485 to USB bridge - Neoptix part number NXP-349
System Ordering Codes
TGL - XX - RevB
XX = Number of channels (02, 04, 06 or 08)
© 2007-2015 Qualitrol Company LLC. All rights reserved. Information subject to change without notice.
Qualitrol Company LLC is an ISO 9001 system certified company. AP-M09-26L-02E-1503-TGLRevB
Defining Reliability
E-mail: info@qualitrolcorp.com
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