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T/Guard 405 Fiber Optic Winding Temperature Monitor

Brand: Qualitrol Company

The T/Guard-405 is multi-channel fiber optic transformer windings hot spot monitoring system.

It has up to 16 optical channels and offers Modbus serial communication.
Features
  • Tough and ruggedized sensors
  • Highly visible LED display
  • Extended operating temperature
  • Compatibility with serial Smart protocols
  • No gage factor or calibration required
  • RS-485, Modbus communication
  • 4-20 mA Analog outputs
  • Accuracy of ±1° C
  • Resolution of ±0.1° C
  • Detachable connector blocks
  • On-board 32 MB memory
  • Available with 2 to 16 channels

Specifications

Accuracy

  • ± 1° C (1.6° F)

Analog Output

  • 4-20 mA (One Output Per Optical Channel)

Calibration

  • No System Recalibration Needed over Lifespan to Remain within Specifications

Communication Port

  • RS-485 Modbus

Conducted, Radiated Emissions, Surge Withstand & Environmental

  • FCC 47 CFR Part 15, Subpart B
  • ICES-003 Issue 4, Feb 2004
  • IEC 60068-2-14 Temperature -40° to 72° C (-40° to 161.6° F)
  • 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
  • IEEE C37.90 Dielectric Strength (High Pot)
  • IEEE C37.90.1-2002 Fast Transient
  • IEEE C37.90.1-2002 Oscillatory

Data Logging

  • 32 MB Internal Memory

Display

  • LED Display

Light Source MTBF

  • > 300-Years of Use

Number of Channels

  • Available with 2 to 16 (2, 4, 6, 8, 10, 12, 14 & 16-Channels)

Operating Mode

  • RS-485: OptiLink™ & OptiLink-II PC Software or ASCII Commands, Modbus

Operating Temperature

  • -40° to 72° C (-40° to 161.6° F)

Power Consumption

  • 15 W, Max.

Power Requirement

  • 20-48 Vdc

Resolution

  • ± 0.1° C (0.2° F)

Response Time

  • 250 milliseconds

Sensor, Probe Compatibility

  • All Neoptix Temperature Probes

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Units

  • User Selectable, Metric or Imperial
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