4-20mA Signal Generator LiebeWH – Digital Display for PLC Calibration

Description

Product Overview

The LiebeWH 4-20mA Signal Generator is engineered to provide a highly accurate current loop simulation ranging from 0 to 22 mA, displayed on an easy‑to‑read digital screen. Housed in a rugged ABS enclosure, the unit measures 5.98 x 3.43 x 2.05 inches and weighs just 122 grams, making it lightweight yet durable for field and bench use. Powered by a 24 V source, it delivers a consistent 2 W output while incorporating short‑circuit protection that automatically shuts down the output if a fault is detected, safeguarding both the device and connected equipment. Its compact DIN‑rail compatible design allows permanent installation in control cabinets, providing instant access for routine calibration of PLC analog inputs, transmitters, actuators, and other industrial control components.

Usage

Designed for industrial environments, this signal generator excels in calibrating and testing a wide range of PLCs, SCADA systems, and process instrumentation. Whether you are verifying the accuracy of a pressure transmitter, adjusting the setpoint of a flow meter, or troubleshooting a motor controller, the adjustable current output mimics real‑world process signals, ensuring that your control loops respond correctly. The device’s short‑circuit protection and stable anti‑interference output make it reliable even in electrically noisy factories, oil rigs, or renewable energy sites. Its DIN‑rail mounting means it can be permanently positioned in a control panel for ongoing monitoring, or easily removed for portable testing in the field.

Why Choose Us

Choosing the LiebeWH 4-20mA Signal Generator means investing in a product that combines precision engineering with user‑centric design. The digital display eliminates guesswork, while the built‑in safety features protect both the instrument and the operator. Our commitment to quality is reflected in the use of high‑grade ABS material, rigorous testing procedures, and a responsive after‑sales support team ready to assist with installation, calibration, or troubleshooting. With a proven track record of over 5‑star customer reviews and a ranking among the top function generators in the industrial category, this device offers reliability that professionals trust.

Key Features

• Adjustable 0‑22 mA output with digital readout for precise current loop simulation.
• Integrated short‑circuit protection ensures safe operation and protects connected equipment.
• Compact DIN‑rail design enables permanent installation in control cabinets for quick access.
• Stable output performance even in electrically noisy industrial environments.
• Dedicated customer support and warranty service for peace of mind.

FAQ

What is the maximum current output of this generator?

The device can output a continuous current ranging from 0 mA up to 22 mA, allowing you to simulate the full span of a standard 4‑20 mA process signal.

Can the generator be powered by batteries?

No, the unit is designed to operate from a 24 V power source, which is typical for industrial control panels and ensures stable performance without the need for battery maintenance.

Is the digital display calibrated?

Yes, the digital display is factory‑calibrated and provides accurate real‑time readouts of the current being generated, eliminating the need for external measurement tools during routine checks.

How does the short‑circuit protection work?

If the output terminals are inadvertently shorted, the internal protection circuit detects the fault and immediately disables the output, preventing damage to the generator and any connected devices.

What mounting options are available?

The generator includes pre‑drilled holes for standard DIN‑rail mounting, allowing secure installation in control cabinets. It can also be used as a handheld unit for portable testing when needed.