Product Description
The Allen-Bradley 931N-T221 is a compact, solid-state thermocouple signal converter that isolates and converts J or K thermocouple temperature readings (-100 to +1372C, depending on thermocouple type, with a minimum span of 50C) into user-configurable analog current (0-20mA or 4-20mA) or voltage (0-5V, 1-5V, 0-10V, or 2-10V) output signals via DIP switches. Designed for easy DIN rail mounting, it features a single passive input channel, a single active output channel, a wide operating temperature range (-25 to +70C), and requires a 24V DC 30% power supply; optimal performance is achieved with sensors having a cable resistance below 5 k per wire.
Is Your Device Showing These Signs?
The Allen Bradley 931N-T221 HMI commonly experiences issues such as a failed backlight, resulting in a dim or unreadable display, requiring backlight replacement or LCD repair. Touchscreen unresponsiveness or inaccurate input is another frequent problem, often stemming from a damaged or contaminated touch sensor overlay, necessitating recalibration or component replacement. Communication failures with the PLC, indicated by error messages or data inconsistencies, are traced to faulty communication ports, incorrect configuration settings, or cable defects, mandating port repair, parameter adjustments, or cable replacement. Power supply failures, evidenced by a non-responsive unit or intermittent operation, are attributed to component degradation within the power circuit, demanding power supply repair or replacement. Memory corruption, leading to program errors or data loss, is resolved through memory module replacement or firmware re-flashing.
Technical specifications
The Allen-Bradley 931N-T221 is a thermocouple signal converter that takes J or K thermocouple temperature readings and converts them into configurable analog current or voltage output signals. It's designed for DIN rail mounting, operates in a wide temperature range, requires a 24V DC power supply, and works best with sensors having low cable resistance.
Our Repair Process for the
931N-T221
Our repair process for the Allen Bradley 931N-T221 HMI begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the reported issue. Backlight failures are addressed through direct backlight replacement or LCD repair as needed. Touchscreen unresponsiveness requires recalibration or replacement of the touch sensor overlay. Communication failures necessitate thorough inspection, repair of faulty communication ports, parameter adjustments, or cable replacement. Power supply failures are resolved through component-level repair or complete power supply replacement. Memory corruption is rectified via memory module replacement or firmware re-flashing, ensuring full operational restoration.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY