Bently Nevada 3502E TMR Input Module Dark Red

Product Overview

The Bently Nevada 3502E is a Triple Modular Redundant (TMR) input module. It features a dark red color code. This module provides 32 input points. They are commoned in groups of 8. It works with a nominal voltage of 48 VAC/VDC. The 3502E includes built-in self-test functionality. It also has an integrated stuck test. This ensures high system integrity. The module status is shown by PASS, FAULT, and ACTIVE LEDs. Each point has its own input status LED. This makes troubleshooting easy.

Application Scenarios

This module is for critical machinery monitoring. It works well in turbine control systems. It is also used in compressor protection. The TMR design suits safety-critical applications. It is ideal for oil and gas facilities. Power generation plants also use it. The module handles harsh industrial environments. It provides reliable data acquisition. The 48 VAC/VDC range fits many field devices.

Technical Specifications

The module has a voltage range of 35 to 95 VAC/VDC. Its maximum voltage is 95 VAC/VDC. The frequency range is DC or 47 to 63 Hz. Nominal input impedance is greater than 2.9 KOhms. Switching thresholds are precise. Off to on is less than 32 VAC/VDC. On to off is greater than 11 VAC/VDC. Typical hysteresis is 7 VAC/VDC. Nominal turn-on current is 6 to 9 mA. Input delay is fast. OFF to ON is less than 8 ms. ON to OFF is less than 15 ms. Point isolation is 1,500 VDC. Nominal field power load is 1.0 watts per on point. At maximum voltage, it is 3.2 watts.

Installation & Maintenance Guide

Install the module in a 3500 rack. Ensure the rack is powered off first. Slide the module into the designated slot. Secure it with the locking screws. Connect field wiring to the terminal block. Verify voltage polarity for DC inputs. Use shielded cables for noisy environments. Check the PASS LED after power up. A solid green light means normal operation. Perform regular visual inspections. Clean the module with a dry cloth. Do not use solvents. The self-test runs automatically. The stuck test checks for failed points. Monitor the FAULT LED for alerts.

Packing List

1 x Bently Nevada 3502E TMR Input Module. 1 x Product documentation. No terminal blocks are included. Use existing 3500 series accessories. The module is shipped in an anti-static bag. It is packed in a sturdy cardboard box. Shipping is via Fedex, UPS, or DHL.