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HE693THM884M

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The GE HE693THM884M Thermocouple Input Module provides high-resolution temperature measurement with 8 channels, integrating all analog and digital processing directly within the module for Series 90‑30 PLC systems.
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Technical specifications for HE693THM884M

  • Manufacturer:
    General Electric
  • Part Number:
    HE693THM884M
  • Product Family:
    GE 90-30 Series PLC
  • Power Consumption:
    100mA @ 5VDC
  • I/O Points Required:
    8%AI, 8%AQ, 16%I
  • Input Impedance:
    >20Mohms
  • Maximum Sustained O/L:
    +/-35V
  • Common Mode Rejection:
    >100dB
  • Number of Channels:
    8
  • Types Supported:
    J, K
  • I/O Points Required:
    8AI, 8AQ, 16I
  • Operating Temperature:
    0 to 60℃
  • Relative Humidity:
    5% to 95% noncondensing
  • Weight:
    0.36 kg
  • Estimated shipping dimensions:
    3.5x13x13.5cm
  • 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 Specifications

Features:

  • High-Resolution Thermocouple Input Module Provides Direct Connection To PLC Systems
  • Supports Eight Channels With Integrated Analog And Digital Signal Processing
  • Features Advanced Alarm Functionality And Auto-Detected Cold Junction Compensation
The GE HE693THM884M Thermocouple Input Module allows industrial temperature sensors to be connected directly to Series 90‑30 PLCs without external signal conditioning. Each of the eight channels is mapped to %AI input registers, and all analog and digital processing is handled onboard. The module reports measurements in increments of 0.5°C, 0.5°F, 0.1°C, or 0.1°F, delivering precise data for process control.

In addition to basic signal measurement, the GE HE693THM884M includes 16 %I alarm bits, providing one open-circuit and one setpoint alarm per channel. Alarm setpoints are configured through 8 %AQ registers, while open-circuit alarms are automatically assigned to the first eight successive %I bits. This setup ensures fast and reliable monitoring of each thermocouple input.

The module supports J and K type thermocouples with input impedance exceeding 20 MΩ and can tolerate sustained overvoltages of ±35 V. It also features >100 dB common-mode rejection and operates reliably in ambient temperatures from 0 to 60 °C with 5–95 % noncondensing humidity. Revision H or later hardware enables auto-detected external AD592 cold junction compensation, optimizing measurement accuracy and stability even in electrically noisy environments.

The HE693THM884M GE Thermocouple Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

GE HE693THM884M Thermocouple Input Module Manuals, Datasheets, Drivers, 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.
GE HE693THM884M Thermocouple Input Module Specs

General

  • Manufacturer GE
  • Model HE693THM884M
  • Condition New Original ready stock
  • Product Family HE693RTD400,HE693RTD601,HE693THM884
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.
Description
The GE HE693THM884M module allows direct connection of thermocouple sensors to GE Fanuc Series 90‑30 PLCs without the need for external signal conditioners or transmitters. It processes all analog and digital thermocouple signals onboard, delivering high-resolution readings of 0.1°C. The module reports values to the PLC I/O table in increments of 0.5°C, 0.5°F, 0.1°C, or 0.1°F, enabling precise control in industrial temperature monitoring applications.

Featuring eight thermocouple channels, the GE HE693THM884M assigns each channel to a dedicated %AI input register. The module also provides 16 %I alarm bits, including one open-circuit alarm and one setpoint alarm per channel, with setpoints configured via 8 %AQ registers. Open circuit alarm bits are mapped to the first eight successive %I bits, while setpoint alarms occupy the next eight bits, ensuring clear and immediate status feedback for operators.

The module supports standard thermocouple types J and K, with input impedance greater than 20 MΩ and a maximum sustained overload of ±35 V. Common mode rejection exceeds 100 dB, guaranteeing stable and noise-resistant performance. Operating temperature ranges from 0 to 60 °C, and the module is rated for 5–95 % noncondensing relative humidity. Power consumption is only 100 mA at 5 VDC, making it highly efficient for continuous operation.

A notable feature of the GE HE693THM884M is its support for auto-detected external AD592 cold junction compensation on Revision H or later hardware. This allows the compensation to occur at a remote isothermal terminal strip, connected to the module via standard copper wiring. The AD converter has been optimized for 60 Hz rejection, further improving measurement accuracy in industrial environments.

The GE HE693THM884M Thermocouple Input Module is ideal for precision temperature monitoring and control in process automation, providing fully integrated signal processing, high-resolution measurement, and robust alarm functionality within a compact, reliable package.
Revisions

Revision Part #

Also known as

HE693THM884J
HE693THM884-J, Series J, Rev J
HE693THM884K
HE693THM884-K, Series K, Rev K
HE693THM884L
HE693THM884-L, Series L, Rev L
Alternative Names
HE693THM884J HE693THM884 HE693THM888 HE693THM894 HE693THM884K
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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.
Are bulk order discounts available?
Yes, competitive pricing and volume discounts are offered for multiple GE HE693THM884M units.
What thermocouple types does the GE HE693THM884M support?
The module supports J and K thermocouples for high-precision temperature monitoring.
How many channels are available on the HE693THM884M?
There are 8 thermocouple input channels, each mapped to %AI input registers.
What is the module’s resolution and reporting increments?
High-resolution measurement of 0.1°C, reportable to the PLC in 0.5°C, 0.5°F, 0.1°C, or 0.1°F increments.