GE HE693THM884M
GE HE693THM884M - Image 2

GE HE693THM884M

Product Introduction: The HE693THM884M is an 8-channel universal input module that accepts both thermocouple and RTD inputs on the same card. The “M” suffix indicates it is a mixed-input variant. This flexibility reduces the number of different module types needed in a chassis.

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Category: SKU: GE HE693THM884M

Description

GE HE693THM884M

Technical Specifications:

  • Channels: 8 (configurable as TC or RTD per channel)
  • TC Types: J, K, T, E, N, R, S, B
  • Types: Pt100, Pt1000, Cu50, Cu100, Ni120
  • Resolution: 0.1°C for TC, 0.01°C for RTD
  • Accuracy: ±1°C (TC), ±0.3°C
  • Update Rate: 5 Hz
  • Isolation: 1500 VDC
  • Power: ~3.5 W

Functional Features:

  • Per-channel input type configuration via software
  • 2-wire, 3-wire, 4-wire RTD support
  • Diagnostic LEDs per channel
  • Hot-swap capable

Application Scenarios:

  • Small turbine temperature monitoring
  • Auxiliary system temperature measurement
  • Process plants with mixed sensor types

Material Composition:

  • Same as HE693THM166 with mixed-input terminal blocks

Working Principle: Each channel has a switchable front-end that routes the signal to either the TC amplifier path or the RTD bridge excitation path based on software configuration. The appropriate signal conditioning and A/D conversion is then performed. Installation Requirements:

  • Configure each channel type in the Mark VIe Toolbox software before powering up
  • Use 3-wire or 4-wire configuration for best accuracy

Usage Precautions:

  • Do not change channel type configuration while the system is running
  • Verify RTD lead resistance compensation is enabled

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