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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Apter Power supports HE800THM000 sourcing, sensor-range records and SmartStack configuration checks.

        HE800THM000

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Horner HE800THM000 is a two-channel SmartStack module that converts thermocouple or low-level millivolt signals into controller temperature data.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Technical specifications for HE800THM000

        • Manufacturer:
          HORNER
        • Part Number:
          HE800THM000
        • Product Family:
          HORNER
        • Product Type:
          2-Channel Thermocouple/Millivolt Input Module
        • Stock:
          1
        • Input Channels:
          2
        • Sensor Types:
          J, K, T, E, C, R, S
        • Millivolt Ranges:
          ±25, ±50, ±100 mV
        • Resolution:
          0.05°C
        • A/D Type:
          Integrating
        • Weight:
          0.595 lbs (0.27 kg)
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Sensor Types Cold-Junction Comp Millivolt Modes Noise Filtering

        Features:

        • Accepts two thermocouple or millivolt channels.
        • Supports seven thermocouple families and three bipolar mV ranges.
        • Provides automatic internal or external cold-junction compensation.
        Horner HE800THM000 is the two-channel metal SmartStack temperature-input configuration; the THM100 version expands the same measurement design to four channels.

        Its selectable sensor and millivolt modes make it suitable for paired temperature points or low-level analog signals within one controller stack.

        Choose the exact sensor type, unit format, filtering and noise-rejection frequency before using the returned analog values.

        The Horner HE800THM000 Thermocouple Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Horner HE800THM000 2-Channel Thermocouple/Millivolt Input Module Manuals, Datasheets, Links 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.

        HE800THM000 Compatible Thermocouple Sensors

        • Base-Metal Types: J, K, T and E are selectable.
        • High-Temperature Types: C, R and S are also supported.
        • Channel Count: Two sensors can be connected.
        • Input Points: The module consumes two analog input registers.

        HE800THM000 Cold-Junction Compensation Method

        • Internal Method: Built-in junction compensation is supported.
        • External Method: The module specification also provides an external compensation option.
        • Selection: Compensation mode is selected automatically.
        • Thermocouple Use: Junction compensation applies when a temperature-sensor type is configured.

        HE800THM000 Low-Level Voltage Measurement Modes

        • Narrow Range: ±25 mV maps to the full signed register span.
        • Mid Range: ±50 mV is independently selectable.
        • Wide Range: ±100 mV accommodates the largest listed signal.
        • Accuracy: Millivolt measurement is specified at 0.1% full scale.

        HE800THM000 Input Filtering and Rejection

        • Filter Constant: Digital smoothing is adjustable in Module Setup.
        • Reject Rate: Mains-noise rejection can be set to 50 or 60 Hz.
        • Conversion: The integrating converter processes sixteen channels per second.
        • Scan Relationship: PLC update timing follows the controller scan rate.
        Description
        Horner HE800THM000 provides two analog input channels for thermocouples or low-level millivolt sources. It supports J, K, T, E, C, R and S sensor types as well as ±25 mV, ±50 mV and ±100 mV ranges, allowing the same compact module to handle temperature sensing or direct millivolt measurement.

        Each Horner HE800THM000 channel uses integrating A/D conversion with 0.05°C resolution. Internal or external cold-junction compensation is selected automatically, while an open thermocouple is reported as a high-temperature condition so a disconnected sensor can be distinguished from a normal low reading.

        Sensor type, Celsius or Fahrenheit format, digital filter constant and 50/60 Hz rejection are configured in Cscape. Horner HE800THM000 maps two analog input points, so the attached sensor and software selection must match on each channel before values are interpreted.
        Alternative Names
        HE800-THM000 HE 800 THM 000 HE800 THM000 HETHM000 HE-THM000 Horner HE800THM000 SmartStack THM000 HE800THM000 Thermocouple Module
        Technical notes
        Horner HE800THM000 handles two thermocouple or millivolt inputs with 0.05°C resolution. Sensor type, temperature format, filtering and line-frequency rejection are configured per application.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Why does Horner HE800THM000 display a very high temperature for one channel?
        Horner HE800THM000 reports an open thermocouple as a high-temperature condition, so check sensor continuity, polarity and terminal contact before changing scaling.
        Can Horner HE800THM000 measure a millivolt source instead of a thermocouple?
        Horner HE800THM000 can select ±25 mV, ±50 mV or ±100 mV ranges; the Cscape channel configuration must match the connected signal.
        How is cold-junction compensation handled by Horner HE800THM000?
        Horner HE800THM000 supports internal or external cold-junction compensation and automatically selects the active method based on the connected arrangement.
        Why does a Horner HE800THM000 reading change slowly after filtering is increased?
        Horner HE800THM000 digital filtering smooths noise by spreading the response over more scans, so a larger filter constant trades speed for stability.
        Can Horner HE800THM000 show values in Fahrenheit?
        Horner HE800THM000 allows Celsius or Fahrenheit temperature formats at several increments; millivolt modes instead use their direct voltage scaling.
        What should be matched when replacing another two-channel temperature module with Horner HE800THM000?
        For Horner HE800THM000, confirm thermocouple type or mV range, compensation method, filter setting, rejection frequency, polarity and the two-point I/O map.

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