Horner HE693THM889C 8-Channel Thermocouple Input Module (GE 90-30 Series)

Product Description

The HE693THM889C is an 8-channel thermocouple input module developed by Horner APG for the GE Fanuc 90-30 PLC rack system. It directly connects multiple types of thermocouple sensors without external transmitters, performs cold junction compensation and signal conversion on-board, and uploads temperature data to the PLC analog register table. It is a revised C version of HE693THM889, widely used for temperature monitoring in industrial furnaces, heat treatment and chemical process systems.

Features

• 8 independent thermocouple input channels, supports J, K, T, E, S, R, B and other thermocouple types
• 0.5°C / 0.5°F resolution, configurable temperature unit output to PLC %AI registers
• Built-in cold junction compensation (CJC), open-circuit detection for each channel
• Independent alarm bit (%I) output for open circuit fault of each channel
• Backplane bus communication, plug-in installation for GE 90-30 PLC rack
• Industrial temperature range, anti-interference design for continuous temperature acquisition
• No external signal conditioner required, simplify field wiring and instrumentation layout
• Revision C hardware upgrade, optimized circuit stability and fault diagnosis performance

Application Scenarios

• Industrial furnace, kiln, heat treatment equipment multi-point temperature monitoring
• Chemical, petrochemical and power plant process temperature measurement
• Packaging, plastic extrusion and metal processing thermal control system
• GE Fanuc 90-30 PLC system retrofit, spare parts replacement and maintenance
• HVAC, boiler and drying equipment distributed temperature collection

FAQ

Q: What PLC rack does this module fit?
A: It is designed for GE Fanuc Series 90-30 PLC backplane.

Q: What is the difference between HE693THM889 and HE693THM889C?
A: The suffix C is the updated hardware revision, with improved circuit and diagnostic reliability.

Q: Does it support open thermocouple alarm?
A: Yes, each channel has dedicated discrete alarm bit when thermocouple wire breaks.

Q: Is this module still in active production?
A: The GE 90-30 platform is legacy, this module is mainly supplied as surplus and refurbished spare parts.