3708E
16-Point Isolated Thermocouple Input Module · 16 · J K T E · 50 ms max · Isolated
Lifecycle note: Preserve thermocouple type, polarity, burnout settings and cold-junction arrangement. Verify the complete temperature loop and common-mode conditions after replacement.
ItemNO:
3708EProduct Condition
Original New with One Year WarrantyParts Available
In Stock and Same Day ShippingDelivery Mode
Shipping via DHL Fedex or UPS etc16-Point Isolated Thermocouple Input Module · Tricon Safety Systems
Triconex 3708E is a 16-channel differential, isolated TMR thermocouple input module supporting J, K, T and E thermocouples. Burnout direction is configurable in TriStation. The maximum update time is 50 ms, and the minimum DC input resistance is 30 megohms.
The manufacturer separates temperature measurement from common-mode and protection ratings. The ±200 VDC common-mode range and 110 VAC continuous point-protection rating are not thermocouple measuring spans. Cold-junction compensation is specified over 0–60 °C, and an illuminated CJ indicator signals a cold-junction fault.
Before replacement, record thermocouple type, polarity, burnout setting, channel scaling and termination arrangement. Inspect cold-junction conditions and cable material as part of an end-to-end temperature check. A successful millivolt input test alone does not prove cold-junction accuracy or the complete installed sensor circuit.
| Manufacturer | Triconex |
|---|---|
| Model | 3708E |
| Input arrangement | 16 differential isolated TMR thermocouple inputs |
| Thermocouple types | J, K, T and E |
| Burnout direction | Upscale or downscale; configured in TriStation |
| Maximum update time | 50 ms |
| DC input resistance | 30 MΩ minimum |
| Point protection | 110 VAC continuous; protection rating, not measurement range |
| Common-mode rejection | −100 dB minimum at DC; −90 dB minimum at 60 Hz |
| Normal-mode rejection | −3 dB typical at 8 Hz; −17 dB typical at 60 Hz |
| Common-mode range | ±200 VDC channel-to-channel and channel-to-ground |
| Cold-junction compensation | 0–60 °C |
| CJ indication | ON indicates a cold-junction fault |
| Logic power | Less than 15 W |
Preserve thermocouple type, polarity, burnout settings and cold-junction arrangement. Verify the complete temperature loop and common-mode conditions after replacement.
No. Review the manufacturer accuracy conditions and the installed cold-junction environment. A temperature gradient at the termination can affect the full loop even when the electronic input passes a bench test.
The documented types for 3708E are J, K, T and E. Do not import noble-metal thermocouple support from another module without an explicit manufacturer reference.
The configured burnout direction selects upscale or downscale behavior. Preserve that choice and prove the resulting application alarm or protective response with an approved open-circuit test.
No. It is the maximum module update time. Total response also includes application scheduling and subsequent output behavior, which must be assessed in the installed configuration.
The manual identifies CJ ON as a cold-junction fault indication. Investigate the cold-junction and termination arrangement together with module diagnostics rather than reading it as a healthy compensation lamp.
No. ±200 VDC is the common-mode limit between channels and ground, not a differential thermocouple measurement range. Keep the sensor signal and common-mode checks separate.
No. It is a continuous point-protection specification, not an operating measurement input. Use an appropriate thermocouple or calibrated signal source under the approved test procedure.
The manual describes diagnostic comparison criteria including 0.5 percent of full scale and repeated samples. Review the complete diagnostic conditions and actual input variation; a stable process reading alone does not prove a failed channel.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Manufacturer PDF extract: 3708E — Sales PLC Cover & Triconex Documentation. File size is below 1 MB; verify the exact installed hardware and configuration before use.
Visit us
32D Guomao Building, No.388, Hubin South Road, Siming District
Please read on, stay posted, subscribe, and we welcome you to tell us what you think.
Disclaimer : Salesplcauto sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Salesplcauto is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Copyright @2026 SalesPlc Limited. Sitemap
/ Blog
/ XML
/ Terms And Conditions
/ Privacy Policy
Network Supported
About Us
Reliable Industrial Automation Parts, Global Supply Support SALES PLC works with a broad network of qualified suppliers to provide industrial automation components that meet our customers’ requirements for quality, availability, price, and delivery time. Our product portfolio covers PLC, DCS, HMI, control systems, safety systems, drives, communication modules, and other critical spare parts from leading brands, including Siemens, Emerson, Invensys Triconex, HIMA, GE, ABB, Honeywell, and Bently Nevada. More Than Products — Complete Supply Solutions Our strength goes beyond product sourcing. We work closely with end users, system integrators, maintenance teams, and industrial partners to identify suitable replacement parts and practical procurement solutions. Through integrated purchasing and online support, customers can send inquiries and place orders throughout the year. Our experienced team responds quickly and helps reduce downtime caused by unavailable or obsolete equipment. Our Team Our experienced team brings together product specialists, sourcing professionals, sales consultants, and customer service staff. We work together to provide clear communication and dependable support at every stage of the order. Growing Together for More Than 20 Years For more than 20 years, SALES PLC has continued to grow with the support and trust of customers, suppliers, and business partners around the world. Every project, inquiry, and partnership has helped us improve our service. Looking ahead, we remain committed to providing dependable products, responsive communication, and professional industrial automation solutions. Thank you to every customer and partner who has supported our journey. We look forward to building a stronger and more successful future together. Sustainable Partnerships SALES PLC believes in building long-term, mutually beneficial relationships with customers and suppliers. We focus on honest communication, responsible sourcing, continuous improvement, and reliable service. As industrial technology continues to evolve, we keep expanding our product knowledge and supplier network to support new systems, legacy equipment, and replacement-part requirements. Contact SALES PLC Our team is available during working hours to answer your questions, check product availability, and prepare a quotation.
Where to Find Us
32D Guomao Building, No.388, Hubin South Road, Siming District
+86 18150117685
sales1@amikon.cn
Follow Us
