Product Description
The 1797-IE8NF is an Allen-Bradley analog input module with an integrated noise filter, featuring eight individually configurable channels for 0-20 mA and 4-20 mA current signals. It offers 16-bit resolution and 0.1% accuracy at 20C, with a temperature drift of 0.05%/C. Designed for hazardous locations (Class I Division 1 & 2, Groups A-D; North American Class I Zone 1 & 2, Groups IIC, IIB, & IIA; European Zones 1, 2, and 22), it also supports connections to field devices in various hazardous areas. It has a power dissipation of 5.2 W, thermal dissipation of 17.75 BTU/hr, and field-side power consumption of 7.5 W. The module provides remote and local fault alarms, configurable data format, eight red fault indicators, and one green power indicator. While pre-calibrated, periodic recalibration may be necessary using a precision current source, meter, and industrial terminal/interconnect cable, especially to clear certain errors. Its IS input type is Ex ia IIB/IIC T4 AEx ia IIC T4 Class I, II, III Division 1 Group A-G T4 and IS module type Ex ib IIB/IIC T4 AEx ib IIC T4 Class I, II, III Division 1 Groups A-D T4, with a functional data range of >15V @ 22 mA and >21.5V @ 0 mA.
Is Your Device Showing These Signs?
The Allen Bradley 1797-IE8NF I/O module commonly experiences issues such as corrupted firmware requiring reflashing, backplane communication failures necessitating thorough inspection of the ControlNet adapter and cabling, and analog input signal inaccuracies demanding recalibration or replacement of the input module. Field wiring terminations are often loose, causing intermittent signal loss; verify proper torque. The module's EEPROM can fail, resulting in configuration data loss; replace the module if this occurs. Power supply fluctuations induce erratic behavior; ensure a stable and clean power source. Resolve these issues through systematic troubleshooting, firmware updates, hardware replacement, and adherence to Allen-Bradley's recommended practices.
Technical specifications
The Allen-Bradley 1797-IE8NF is an eight-channel analog input module designed for hazardous locations. It measures 0-20 mA and 4-20 mA current signals with high accuracy (16-bit resolution, 0.1% accuracy) and includes an integrated noise filter. The module features configurable data format, fault alarms, and indicators, and while pre-calibrated, may require periodic recalibration. It has specific power dissipation and consumption figures and is certified for use in various hazardous environments.
Our Repair Process for the
1797-IE8NF
Our repair process for the Allen Bradley 1797-IE8NF I/O module begins with a systematic troubleshooting procedure to identify the root cause of the malfunction. Address corrupted firmware by reflashing the module. Inspect the ControlNet adapter and cabling to resolve backplane communication failures. Recalibrate or replace the input module to correct analog input signal inaccuracies. Field wiring terminations are checked and properly torqued to eliminate intermittent signal loss. Replace the module if EEPROM failure results in configuration data loss. Ensure a stable and clean power source to mitigate erratic behavior caused by power supply fluctuations. Execute firmware updates, hardware replacement, and adherence to Allen-Bradley's recommended practices to complete the repair.
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.