Frequently Asked Questions
What is the Horner HE693THM884?
The HE693THM884 is an eight-channel high-resolution thermocouple input module manufactured by Horner APG. It is designed for temperature signal acquisition in GE Fanuc Series 90 PLC systems and supports Type J and Type K thermocouples.
How many thermocouple channels does the HE693THM884 have?
The module provides eight independent thermocouple input channels for monitoring multiple temperature measurement points.
Which thermocouple types are supported?
The HE693THM884 supports Type J and Type K thermocouples. Do not confuse it with the HE693THM888, which supports a broader range of thermocouple types.
What is the temperature measurement range?
Type J thermocouples have an input range of -210 to +760°C. Type K thermocouples have an input range of -270 to +1372°C.
What is the temperature resolution?
The module provides a resolution of 0.1°C, allowing temperature measurements to be represented in 0.1-degree increments.
What is the measurement accuracy?
For Type J, the manufacturer specifies ±1°C over -210 to +760°C. For Type K, the specified accuracy is ±1°C from -100 to +1000°C and ±2°C from -200 to +1372°C.
What A/D conversion technology does the module use?
The HE693THM884 uses an 18-bit integrating A/D conversion method. The specified conversion time is 5 ms, with a scan rate of 40 channels per second.
What is the power consumption?
The manufacturer's specification lists power consumption of 100 mA at 5 VDC.
What PLC system is the HE693THM884 compatible with?
The module belongs to the Horner HE693 family of modules documented for GE Fanuc Series 90 systems. Confirm the target PLC rack, configuration and system requirements before installation.
Can the HE693THM884 be used with Type K thermocouples?
Yes. Type K is one of the two supported thermocouple types. Its specified input range is -270 to +1372°C.
Does the module support Celsius and Fahrenheit?
Yes. The configuration parameters include selectable engineering units of 0.1°C or 0.1°F, subject to the configured measurement settings.
Does the module provide thermocouple break detection?
The configuration parameters include selectable upscale or downscale thermocouple break handling. The appropriate setting should be selected according to the application's monitoring and fault-response requirements.
What are the operating environmental conditions?
The specified operating temperature is 0 to 60°C (32 to 140°F). Relative humidity is 5% to 95%, non-condensing.
What should be checked before ordering HE693THM884?
Confirm the complete HE693THM884 model number, compatibility with the GE Fanuc Series 90 PLC system, eight-channel requirement, Type J or Type K thermocouple selection, temperature measurement range and module configuration requirements. Also verify the wiring and installation instructions before commissioning.