HITACHI LYA210A Analog Input Module

Technical Specifications

• The module features 8 isolated channels specifically for thermocouple inputs.
• The module is compatible with standard thermocouple types including J, K, T, E, R, S, B, and N.
• The module processes millivolt-level signals with a 16-bit analog-to-digital conversion resolution.
• The hardware includes built-in cold-junction compensation to adjust for ambient temperature fluctuations.

The LYA210A integrates cold-junction compensation circuitry to correct measurement errors from ambient temperature fluctuations around the rack, aligning temperature conversion data with the physical status at the thermocouple junction. Internally, the hardware operates with low-power processing chips to limit internal heat release during continuous 24/7 function inside sealed, unventilated control cabinets.

Benefits Summary

Lifecycle and Market Status

The LYA210A has been discontinued from standard production, and the current market supply consists of existing stock, surplus spare parts, and refurbished components. The module serves as a replacement part for existing DCS or PLC control systems in power plants, chemical lines, and heating facilities. Without upgrading the entire control network, this module is used to maintain the operation of existing equipment and reduce downtime risks caused by hardware failures.

Technical FAQ

Q: How to use products like the LYA210A?
A: Insert the module into the H-System I/O rack, connect the thermocouple compensation cables to the channel terminals, and transfer data to the controller via the backplane bus.

Q: What is the analog-to-digital conversion resolution inside the LYA210A?
A: The resolution of the internal analog-to-digital converter inside the module is 16 bits.

Q: What is the function of the cold-junction compensation circuitry in the LYA210A?
A:  The circuitry corrects measurement errors caused by ambient temperature fluctuations around the rack, aligning conversion data with the physical status at the thermocouple junction.

Q: Which field parameters does the LYA210A monitor?
A: It monitors temperature parameter trends inside boilers, heating furnaces, pipelines, or reaction vessels.

Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.

Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.

Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.

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