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      HE693THM884M

      Thermocouple Input Module

      Product Information

      Product Describe

      The Horner APG High Resolution Thermocouple

      Input Module allows thermocouple temperature sensors

      to be directly connected to the PLC without external

      signal processing (transducers, transmitters, etc.).

      • Manufacturer:
        General Electric
      • Product Category:
        PLC System
      • Estimated shipping dimensions:
        12 x 20 x 15 cm
      • Weight:
        2.3 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Power Consumption:
        100mA @ 5VDC
      • Number of channels:
        8 channels
      • Input Range (Temp.):
        J: -210 to +760°C / K: -270 to +1372°C
      • Resolution:
        0.1°C
      • Input Impedance:
        >20Mohms
      • Maximum Sustained O/L:
        +/- 35V
      • Stock:
        30

      • New and original with factory sealed packing

        Brand new and 100% original unit, supplied in factory-sealed packaging, ensuring untouched condition and full manufacturer integrity.

      • New in opened package

        These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged.

      • New surplus

        New surplus item in unused condition, originally manufactured for distribution but not deployed in service.

      • Refurbished

        This product has been repaired by an authorized service center, and worn or aged parts have been replaced with qualified genuine parts. Warranty terms are subject to refurbishment certification and service policies.

      More Information

      Overview Manuals Principle

      Features:

      • Thermocouple Input Module
      • Horner APG High Resolution Thermocouple Input Module
      • Allows thermocouple temperature sensors to be directly connected to the PLC without external signal processing (transducers, transmitters, etc.)
      Its main function is to acquire temperature signals from multiple thermocouple sensors and convert them into digital data suitable for process monitoring and regulation. This module supports various thermocouple types and can be flexibly applied in applications with extremely high temperature measurement requirements, such as furnace control, heat treatment systems, power generation, and chemical industries.

      In actual operation, the HE693THM884M improves system reliability through built-in cold junction compensation and sensor fault detection mechanisms. It ensures stable temperature data acquisition even under fluctuating environmental conditions. The module's multi-channel configuration supports centralized temperature monitoring, simplifying wiring and facilitating scalability in distributed control architectures.

      The HE693THM884M GENERAL ELECTRIC Thermocouple Input Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
      GENERAL ELECTRIC HE693THM884M THERMOCOUPLE INPUT MODULE datasheet(manual), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
      Thermocouples generate millivolt-level signals proportional to the temperature difference between the measuring and reference terminals. The module measures this low-level voltage, applies cold junction compensation to correct for the ambient reference temperature, linearizes the signal according to the characteristics of the thermocouple type, and converts the processed signal into a digital value. The processed temperature data is then transmitted to the PLC backplane for real-time monitoring and control.
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of General Electric
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      Moore Automated is not an authorized distributor, reseller or representative of the products featured on this website.
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          FAQ

          • What thermoelectric signal acquisition architecture defines the operational paradigm of HE693THM884M within a Series 90-30 PLC framework?
            The HE693THM884M is engineered as a multi-channel thermocouple input module that converts low-level millivolt thermoelectric signals into high-resolution digital temperature values. Internally, HE693THM884M integrates precision amplification, cold junction compensation (CJC), and analog-to-digital conversion circuitry to ensure deterministic and repeatable temperature measurement performance.
          • How does HE693THM884M implement cold junction compensation, and why is CJC accuracy critical to HE693THM884M measurement fidelity?
            The HE693THM884M incorporates onboard temperature sensing elements positioned at the terminal interface to provide real-time cold junction reference compensation. Because thermocouple measurements are inherently differential, the CJC mechanism in HE693THM884M is essential to eliminate ambient terminal temperature error and maintain metrological accuracy.
          • Which thermocouple types can HE693THM884M accommodate, and how does HE693THM884M maintain linearization across diverse thermoelectric characteristics?
            The HE693THM884M supports multiple industry-standard thermocouple types (e.g., J, K, T, E, and others depending on configuration). Through embedded linearization algorithms and reference tables, HE693THM884M compensates for nonlinear voltage-to-temperature characteristics inherent in thermoelectric sensors.
          • How does HE693THM884M mitigate electromagnetic interference and low-signal noise susceptibility in millivolt-level measurements?
            Given the microvolt-to-millivolt signal amplitude of thermocouples, HE693THM884M integrates differential input circuitry, filtering stages, and high common-mode rejection ratios (CMRR). These features enable HE693THM884M to preserve signal integrity in electrically noisy industrial environments.
          • What channel isolation strategy is embedded in HE693THM884M, and how does HE693THM884M prevent ground loop induced distortion?
            The HE693THM884M typically provides channel-to-channel and channel-to-backplane isolation to attenuate ground potential differentials. This galvanic isolation ensures that HE693THM884M minimizes cross-channel interference and protects the PLC backplane from transient disturbances.

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