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Allen-Bradley 199-LJ1 SLC 500 Analog Input Module

Allen-Bradley 199-LJ1 SLC 500 4-channel 4-20mA analog input module.

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ManufacturerAllen Bradley

Part number199-LJ1

Number of Channels 4

Input Type Current

Input Range 4-20mA DC

Resolution 12-bit

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CAGE: 9NK75

4-channel 4-20mA current input 12-bit resolution High accuracy and reliability Designed for industrial transmitters Compatible with SLC 500 Robust performance

Product description

The Allen-Bradley 199-LJ1 is a 4-channel analog input module for the SLC 500 system, specifically designed to accept 4-20mA current loop signals. This module provides high-resolution, 12-bit conversion, making it ideal for precise measurement of signals from industrial transmitters.

This module is widely used in process control industries where 4-20mA current loops are standard for transmitting signals from sensors such as pressure transmitters, temperature sensors, and flow meters. Its dedicated current input design ensures accuracy and reliability in demanding environments.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the 199-LJ1 module. We are committed to providing quality surplus industrial automation components, helping you maintain your systems and manage costs effectively.

Technical specifications

Number of Channels	4
Input Type	Current
Input Range	4-20mA DC
Resolution	12-bit
Input Impedance	250 Ohms
Isolation	None
Series	SLC 500
Backplane Current	280mA @ 5VDC

Common applications

Process Control

Temperature Measurement

Pressure Sensing

Flow Metering

Level Transmitters

Industrial Automation

Data Acquisition

Compatible systems

SLC 500 Series Controllers (e.g., 1747-L511, 1747-L524, 1747-L531, 1747-L532, 1747-L541, 1747-L542, 1747-L551, 1747-L552)

Also known as

199LJ1, Allen Bradley SLC 500 Current Input, 4-20mA Module

Replaces / compatible with

The 199-LJ1 is a dedicated current input module within the SLC 500 series, providing a reliable solution for applications using the standard 4-20mA signal, often replacing older or less precise current input modules.

Technical note

Expert tip

When wiring the 199-LJ1, ensure the 4-20mA current loop is properly terminated and that the loop power supply is adequate to drive the signal through the module's input impedance.

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Frequently asked questions

What is the input signal type for the Allen-Bradley 199-LJ1 module?

The Allen-Bradley 199-LJ1 module is designed exclusively for 4-20mA DC current loop input signals. It is ideal for interfacing with industrial transmitters that output this standard signal range for process variables.