My Cart
0 items
Genuine Automation Parts | Worldwide Express Delivery | 12-Month Warranty — [GET A QUOTE]
Product Description
The 1794-IT8 (Part Number: 612598137831) is a high-density analog input module designed for the FLEX I/O platform, offering eight isolated-to-common channels for temperature and low-voltage sensing. It interfaces directly with a wide range...
Availability: Low stock: 99 left
Reliable Worldwide Delivery
30-Day Money-Back Guarantee
Need more details? Read our fullShipping PolicyandRefund Policy.
Product Description
The 1794-IT8 (Part Number: 612598137831) is a high-density analog input module designed for the FLEX I/O platform, offering eight isolated-to-common channels for temperature and low-voltage sensing. It interfaces directly with a wide range of industrial thermocouples and millivolt-level transducers, eliminating the need for external signal conditioners. Utilizing the FLEX I/O backplane, the 1794-IT8 sends digitized temperature data to a central controller via compatible communication adapters, such as EtherNet/IP, ControlNet, or DeviceNet.
With a 16-bit resolution, the 1794-IT8 offers precise measurements across various thermal environments. It supports several thermocouple types (B, C, E, J, K, N, R, S, T, and L) as well as a linear millivolt range of ±76.5mV. For data integrity, the module utilizes Block Transfer (BTR/BTW) programming for older RIO systems or easy tag integration with Logix-based architectures.
| Specification | Details |
|---|---|
| Module Type | Thermocouple / Millivolt Analog Input |
| Catalog Number | 1794-IT8 |
| Number of Inputs | 8 Channels (Single-ended, non-isolated between channels) |
| Resolution | 16 Bits (Typical 2.384 µV/cnt) |
| Input Signal Range | ±76.5 mV |
| Power Dissipation | 3.0 Watts maximum @ 31.2V DC |
| Thermal Dissipation | 10.2 BTU/hr maximum @ 31.2V DC |
| FLEXBus Current | 20 mA @ 5V DC |
| External DC Supply Voltage | 24V DC nominal (Range 10–31.2V DC) |
| Cold Junction Compensation (CJC) | Required (via 1794-TBT3G or similar terminal base) |
| Data Format | 16-bit 2's complement integer |
| Conversion Type | Sigma-Delta |
Q: Does the 1794-IT8 require a specific terminal base?
A: Yes, for thermocouple applications, a terminal base with Cold Junction Compensation (CJC) is required. The 1794-TBT3G or 1794-TB3G is commonly used to ensure accurate temperature readings by compensating for the ambient temperature at the module terminals.
Q: Can I mix different thermocouple types on the same module?
A: While the hardware supports multiple types, the configuration is generally applied to the module level or in pairs depending on the controller's software profile. It is recommended to group similar sensors to maintain consistency in data processing.
